DOCSLIB.ORG

COURSE STRUCTURE (Effective from the Academic Session 2016-17) Btech Mineral Engineering

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
COURSE STRUCTURE (Effective from the Academic Session 2016-17) Btech Mineral Engineering COURSE STRUCTURE (Effective from the academic session 2016-17) BTech Mineral Engineering III SEMESTER SUBJECT L-T–P Credit SUBJECT NAME (Hours per CODE Hours week) FMC 13101 Characterisation of Coal and Minerals 3-0-0 6 FMC 13102 Comminution and Classification 3-1-0 7 GLR 13101 Mineralogy, Petrology & Stratigraphy 3-0-0 6 AMR 13101 Methods of Applied Mathematics - I 3-1-0 7 MCR 13101 Mechanical Engineering – I 3-1-0 7 HSS Electives (Any One) HSE 13302 i) Philosophy of Science (S) HSE 13303 ii) Gandhian Studies (S) 3-0-0 6 HSE 13304 iii) Oral Communication Skills (S) HSE 13305 iv) Oral Presentation Skills (S) FMC 13201 Characterisation of Coal and Minerals Lab 0-0-3 3 FMC 13202 Comminution and Classification Lab 0-0-3 3 GLR 13201 Mineralogy, Petrology & Stratigraphy Lab 0-0-3 3 FMC 13801 Project 0-0-2 2 Total 18-3-11 50 IV SEMESTER L-T–P SUBJECT Credit SUBJECT NAME (Hours per CODE Hours week) FMC 14101 Gravity Separation of Coal and Minerals 3-1-0 7 MER 14102 Mining Methods and Unit Operations 3-0-0 6 AMR 14101 Numerical and Statistical Methods 3-1-0 7 MCR 14101 Mechanical Engineering – II 3-1-0 7 HSR 14306 English for Professional Communication 3-0-0 6 A. FMC 14201 Gravity Separation of Coal and Minerals 0-0-3 3 Lab FMC 14801 Project 0-0-2 2 FMC 14505 Plant Orientation and Composite Viva- 0-0-0 (4) 4 voce SWC 14701 Co-curricular activity 0-0-0 (3) 3 Total 15-3-5 (7) 45 III SEMESTER (BTech Mineral Engineering) Page 1 V SEMESTER L-T–P SUBJECT SUBJECT NAME (Hours per Credit Hours CODE week) BTech MINERAL ENGINEERING FMC 15101 Magnetic, Electrical and Advanced 3-0-0 6 Separation Processes FMC 15102 Extraction of Non-Ferrous Metals from 3-0-0 6 Ores and Concentrates FMC 15103 Froth Flotation 3-0-0 6 MSR 15153 Managerial Economics 3-0-0 6 FMC 15201 Magnetic, Electrical and Advanced 0-0-2 2 Separation Processes Lab FMC 15203 Froth Flotation Lab 0-0-2 2 FMC 15801 Project 0-0-4 4 FMC 15601 Visits to metallurgical, manufacturing 0-0-0 (2) 2 and power plants Total 12-0-8 (2) 34 BTech MINERAL ENGINEERING with HONOURS FMH 15101 Agglomeration Technology 3-0-0 6 FMH 15201 Agglomeration Technology Lab 0-0-3 3 Total 15-0-11 (2) 43 MINOR (MINERAL ENGINEERING) FMM 15101 Introduction to Mineral Engineering 3-0-0 6 FMM 15201 Introduction to Mineral Engineering Lab 0-0-3 3 Total (Minor) 3-0-3 9 MINOR (FUEL ENGINEERING) FMM 15102 Introduction to Fuel Technology 3-0-0 6 FMM 15202 Introduction to Fuel Technology Lab 0-0-3 3 Total (Minor) 3-0-3 9 V SEMESTER (BTech Mineral Engineering) Page 2 VI SEMESTER SUBJECT L-T–P SUBJECT NAME Credit Hours CODE (Hours per week) BTech MINERAL ENGINEERING FMC 16101 Coal Preparation and Utilisation 3-1-0 7 Plant Practices FMC 16102 Ferrous Extractive Metallurgy 3-0-0 6 FMC 16103 Fuel Technology 3-0-0 6 EER 16102 Applied Electrical Engineering 3-0-0 6 FMC 16202 Extractive Metallurgy Lab 0-0-3 3 FMC 16203 Coal Preparation and Fuel 0-0-2 2 Technology Lab FMC 16801 Project 0-0-4 4 FMC 16601 Visits to coal preparation and 0-0-0 (2) 2 utilisation plants Total 12-1-9 (2) 36 BTech MINERAL ENGINEERING with HONOURS FMH 16101 Process Equipment Selection 3-2-0 8 Total 15-3-9 (2) 44 MINOR (MINERAL ENGINEERING) FMM 16101 Extractive Metallurgy 3-0-0 6 FMM 16201 Extractive Metallurgy Lab 0-0-3 3 Total (Minor) 3-0-3 9 MINOR (FUEL ENGINEERING) FMM 16102 Liquid & Gaseous Fuels 3-0-0 6 FMM 16202 Liquid & Gaseous Fuels Lab 0-0-3 3 Total (Minor) 3-0-3 9 VI SEMESTER (BTech Mineral Engineering) Page 3 VII SEMESTER SUBJECT L-T–P Credit CODE SUBJECT NAME (Hours per Hours week) BTech MINERAL ENGINEERING FMC 17101 Mineral Processing Plant Practices 4-0-0 A. Iron Ores, Bauxite, Chromite and (2-0-0) Industrial Minerals, Gold, Silver and 8 Platinum group minerals B. Placer Minerals, Lead-Zinc and Copper (2-0-0) ores, Manganese Ores FMC 17102 Dewatering and Drying 3-0-0 6 MMC 17103 Bulk Solids Handling Equipment 3-1-0 7 MSR 17152 Industrial Engineering & Management 3-0-0 6 FMC 17202 Dewatering and Drying Lab 0-0-2 2 FMC 17801 Project 0-0-6 6 FMC 17601 Visits to ore processing plants 0-0-0 (5) 5 Total 13-1-8 (5) 40 BTech MINERAL ENGINEERING with HONOURS FMH 17101 Computational and Optimisation 3-0-0 6 Techniques Beneficiation Process Control and Plant FMH 17102 3-0-0 6 Layout (S) Total 19-1-8 (5) 52 MINOR (MINERAL ENGINEERING) FMM 17101 Dewatering and Drying 3-0-0 6 FMM 17201 Dewatering and Drying Lab 0-0-2 2 Total (Minor) 3-0-2 8 MINOR (FUEL ENGINEERING) FMM 17102 Coal Carbonisation 3-0-0 6 FMM 17202 Coal Carbonisation Lab 0-0-2 2 Total (Minor) 3-0-2 8 VII SEMESTER (BTech Mineral Engineering) Page 4 VIII SEMESTER SUBJECT L-T–P Credit CODE SUBJECT NAME (Hours per Hours week) BTech MINERAL ENGINEERING FMC 18101 Flowsheet Design and Project 3-2-0 Management 8 A. Flowsheet Design (2-2-0) B. Project Management (1-0-0) Pollution Control & Environmental ESC 18106 3-0-0 6 Management MMC 18101 Maintenance Engineering 3-1-0 7 Electives (Any one) FME 18101 Bio-Mineral Processing FME 18102 Power Plant Engineering 3-0-0 6 FME 18103 Elements of Materials Engineering FME 18104 Clean Coal Technology FMC 18801 Project 0-0-6 6 FMC 18501 Comprehensive Viva-voce 0-0-0 (4) 4 FMC 18601 Visits to ore processing plants 0-0-0 (5) 5 FMC 18001 Vacational Training* 0-0-0 (12) 12 Total 12-3-6 (21) 54 BTech MINERAL ENGINEERING with HONOURS FMH 18101 Modelling and Simulation 3-2-0 A. Modelling (3-0-0) 8 B. Simulation (0-2-0) Total 15-5-6 (21) 62 MINOR (MINERAL ENGINEERING) FMM 18101 Size Enlargement Processes 3-0-0 6 Total (Minor) 3-0-0 6 MINOR (FUEL ENGINEERING) FMM 18102 Modern Energy Systems 3-0-0 6 Total (Minor) 3-0-0 6 * Marks under “Vacational Training (FMC 18001)” will be awarded on the basis of industrial trainings, totaling to a period of at least 12 weeks, undertaken by the student during the vacations between the 4th semester and the 8th semester. VIII SEMESTER (BTech Mineral Engineering) Page 5 DETAILED COURSE CONTENTS (Effective from the academic session 2016-17) BTech Mineral Engineering III SEMESTER FMC 13101 Characterisation of coal and minerals (3-0-0) Mineral Engineering: Definition, importance, scope, objectives, limitations and unit operations. Ore deposits formation, their characteristics and importance in mineral engineering. Mineral, ore and gangue mineral, Grade, Tenor, Process mineralogy, specifications for different industrial applications. Recovery, Grade, Ratio of Concentration, Enrichment Ratio and Separation efficiency etc. liberation and its importance, degree of liberation, optimum degree of liberation; brief introduction to different types of unit operations. Importance of characterisation in coal preparation and mineral processing plant design, operation and control. Sampling: Definition, need, methods of sampling (solids and slurries), Gy’s law of sampling, estimation of minimum amount of sample required, BIS standard for sampling, accurate sampling of solids and slurry Particle size measurements: Various methodologies used for measuring particle size distribution, different nomenclatures and approaches, particle characterization by different techniques, meaning of geometrical diameters, equivalent or derived diameters, statistical diameters to designate the size of the irregular particles, in sieve and sub-sieve sizes. Representation of Particles size analysis: Particle size distribution and quantification, different methodologies for estimating particle size distributions, various methods of gravitational and centrifugal sedimentation and elutriation and their application in particle size measurement. Surface area, shape and porosity: Direct and indirect methods of surface area and shape measurement, permeability, gas adsorption, Volume and porosity measurements, , Bulk solids properties – bulk density, true density. Porosity, Bed porosity, packing density Coal Characterisation: Origin and formation of coal. Coal petrography, mineral matter in coal, chemical and physical properties of coal, plastic/caking properties of coal, grading and classification of coal, selection of coal for various processes. Coal properties, description and determination of various coking and caking properties of coal for metallurgical ad thermal power plants including agglutinating and plastic properties. FMC 13102 Comminution and Classification (3-1-0) Intoduction: Impact of mining and its effect on rock size distribution; particles size distribution functions, Gaudin-Schumann function, Rosin-Rammler function, Gaudin-Meloy equations, Broadbent and Calcott equation, particle size measurement Fundamentals of size reduction, modes of fracture Comminution laws, Drop shatter tests and shatter index, single particle breakage and packed bed breakage; Basic Principles of Crushing and Grinding. Grindability Indices Crushing: Construction & operational features of different crusher: Objectives, Forces of breakage; Design , operation and maintenance of Jaw, Gyratory, Cone, single and double Roll III SEMESTER (BTech Mineral Engineering) Page 6 crushers, Sizers, Hammer mills, Ring Granulators and Rotary breakers, High compression rolls. Performance aspects. In-pit and portable crushers. Grinding: Principles; Construction & operational features of grinding mills: ball, rod, pebble, autogenous, SAG and fluid energy mills, mills used in power plants and cement industry; Mill liners; Feed entry and product discharge mechanisms; Open and closed circuit grinding; Application of of mills; Effect of process parameters on mill performance. Industrial screening: Need and importance of Size Separation, Fundamentals of industrial screening; Dry and wet screening; Classification of screens; Different types of industrial screens.
Load more

Recommended publications
  • Contents 2009
    INNEHÅLLSFÖRTECKNING/CONTENTS Page Forssberg, Eric, Luleå University of Technology Energy in mineral beneficiation 1 Acarkan N., Kangal O., Bulut G., Önal G. Istanbul Technical University The comparison of gravity separation and flotation of gold and silver bearing ore 3 Ellefmo, Steinar & Ludvigsen, Erik, Norwegian University of Science and Technology Geological Modelling in a Mineral Resources Management Perspective 15 Hansson, Johan, Sundkvist, Jan-Eric, Bolin, Nils Johan, Boliden Mineral AB A study of a two stage removal process 25 Hulthén, Erik & Evertsson, Magnus, Chalmers University of Technology Optimization of crushing stage using on-line speed control on a cone crusher 37 Hooey1, P.L., Spiller2, D.E, Arvidson3, B.R., Marsden4, P., Olsson5, E., 1MEFOS, 2Eric Spiller Consultants LLC, 3Bo Arvidson Consulting LLC, 4, 5Northland Resources Inc. Metallurgical development of Northland Resources' IOCG resources 47 Ikumapayi, Fatai K., Luleå University of Technology, Sundkvist, Jan-Eric & Bolin, Nils-Johan, Boliden Mineral AB Treatment of process water from molybdenum flotation 65 Johansson, Björn, Boliden Mineral AB Limitations in the flotation process 79 Kongas, Matti & Saloheimo, Kari, Outotec Minerals Oy New innovations in on-stream analysis for flotation circuit management and control 89 Kuyumcu, Halit Z. & Rosenkranz, Jan, TU Berlin Investigation of Fluff Separation from Granulated Waste Plastics to be Used in 99 Blast Furnace Operation Mickelsson1, K-O, Östling2 J, Adolfsson3, G., 1LKAB Malmberget, 2Optimation AB Luleå, 3LKAB Kiruna
    [Show full text]
  • Chapter 11: Beneficiation
    CHAPTER 11 Beneficiation – Comminution Sponsored by: SPONSOR PROFILE Through pioneering the introduction of modern process • project controls and reporting plants and associated technologies to remote and logistically • contract management challenging locations, Lycopodium Minerals Pty Ltd has • procurement and logistics management developed a successful track record in developing and • inspection and expediting commissioning major resource projects worldwide. • quality assurance/quality control Since its establishment in 1992, Lycopodium has become a • financial evaluations leading international engineering and project management • client representation. consultancy, with an enviable reputation for providing Engineering technically innovative and cost-effective engineering solutions. They are focused on the evaluation and development of projects • Conceptual through to detailed design in the fields of minerals processing, materials handling and • across all disciplines: earthworks, civil infrastructure. • structural, mechanical, piping • electrical, instrumentation, control Lycopodium Minerals has undertaken studies and projects across a broad range of commodities including gold (free, • systems, automation and infrastructure. gravity, refractory, preg robbing), base metals (concentrators, Process hydrometallurgy), iron ore, uranium, rare earths and industrial minerals. Their resume of projects reflects diversity in not • Metallurgical test work design only commodity, but client background, technology, scale of • management and interpretation
    [Show full text]
  • Challenges Related to the Processing of Fines in the Recovery of Platinum Group Minerals (Pgms)
    minerals Review Challenges Related to the Processing of Fines in the Recovery of Platinum Group Minerals (PGMs) Kirsten C. Corin 1,* , Belinda J. McFadzean 1, Natalie J. Shackleton 2 and Cyril T. O’Connor 1 1 Centre for Minerals Research, Chemical Engineering Department, University of Cape Town, P Bag X3, Rondebosch, Cape Town 7700, South Africa; [email protected] (B.J.M.); [email protected] (C.T.O.) 2 Minerals Expertise Tech Pty Ltd., Germiston 2007, South Africa; [email protected] * Correspondence: [email protected] Abstract: In order to increase the recovery of PGMs by flotation, it is necessary to optimise the liberation of the key minerals in which the platinum group elements (PGEs) are contained which include sulphides, arsenides, tellurides, and ferroalloys among others, while at the same time ensuring the optimal depression of gangue minerals. In order to achieve this, comminution circuits usually consist of two or three stages of milling, in which the first stage is autogeneous, followed by ball milling. Further liberation is achieved in subsequent stages using ultra-fine grinding. Each comminution stage is followed by flotation in the so-called MF2 or MF3 circuits. While this staged process increases overall recoveries, overgrinding may occur, hence creating problems associated with fine particle flotation. This paper presents an overview of the mineralogy of most of the more significant PGM ores processed in South Africa and the various technologies used in comminution circuits. The paper then summarises the methodology used in flotation circuits to optimise recovery Citation: Corin, K.C.; McFadzean, of fine particles in terms of the collectors, depressants, and frothers used.
    [Show full text]
  • Effect of Comminution Method on Particle Damage and Breakage Energy
    EFFECT OF COMMINUTION METHOD ON PARTICLE DAMAGE AND BREAKAGE ENERGY Michael Moats, Jan Miller, Chen-Lun Lin and Raj Rajamani Department of Metallurgical Engineering University of Utah Outline • Our Department • High Pressure Grinding • Particle Damage Characterization • Breakage Energy • Application to Simulant Development Department of Metallurgical Engineering • University of Utah is located in Salt Lake City along the Wasatch Mtns. • Only stand alone Metallurgical Engineering department remaining in the U.S. • Traditional curriculum with critical mass of professors – Mineral Processing – Chemical Metallurgy – Physical Metallurgy High Pressure Grinding Rolls (HPGR) HPGR consists of a pair of counter rotating rolls, one fixed and the other floating. The feed is introduced to the gap in between the rolls and they compress the bed of particles. The grinding force applied to the crushing zone is controlled by a hydro-pneumatic spring on the floating roll. Speeds of the rolls are also adjustable to obtain optimum grinding conditions. Comparison of HPGR and AG/SAG Mills Aspect HPGR AG/SAG Mill Grinding Mechanism Inter-particle compression Impact, attrition and compression Residence Time Low-single pass High (feed migrates through length of mill) Wet/Dry Grinding Dry-Low moisture Predominantly wet milling Availability >90% -2-4 change outs pa >90% -1-2 change outs pa Size regulated feed Required Yes-strongly affects stud breakage AG-No, SAG-Sometimes Critical material size Not required Required Product particle Yes (beneficial for downstream Negligible micro-cracking processes Maximum Throughput 2000tph 4000tph Footprint Small Large Specific power 1-5kWh/t 5-12kWh/t Operating cost Overall plant 20% lower Overall plant 20% higher Capital Cost 25% lower 25% higher Delivery time Substantially faster Substantially longer Variation in feed hardness Single parameter variable High losses •Reference: Koenig, R.L.
    [Show full text]
  • Comminution of Copper Ores with the Use of a High-Pressure Water Jet
    energies Article Comminution of Copper Ores with the Use of a High-Pressure Water Jet Przemyslaw J. Borkowski Faculty of Geo Engineering Mining and Geology, Wroclaw University of Technology, 50-370 Wroclaw, Poland; [email protected] Received: 4 November 2020; Accepted: 27 November 2020; Published: 28 November 2020 Abstract: The article presents research on the comminution of copper ore in a self-constructed mill using high-pressure water jet energy to investigate the usefulness of such a method for comminuting copper ore. As a result, ore particles are obtained that are characterized by appropriate comminution and a significant increase in their specific surface, in turn allowing for potential further processing of the mineral. A comparative analysis of the efficiency of copper ore comminution, primarily taking into account the unit energy consumption and the efficiency of the milling process, clearly indicates that the energy absorption of hydro-jet material comminuting is lower than during mechanical grinding, e.g., in a planetary ball mill. The applicability of the technique depends on the brittle nature of the host rock, e.g., it is especially appropriate for sandstone and shale ores. Keywords: copper ore comminution; hydro-jet mill; high-pressure water jet 1. Introduction Shredding processes are widely used in various fields of raw material processing. Such procedures are carried out in order to lower the costs of maintaining the cutter discs used in Tunnel Boring Machines (TBM) operating in hard rock formations [1]. They are also used to obtain fine-grained particles, sometimes even nanoparticles [2] or those that have an increased specific surface, which can be especially useful in pharmaceuticals [3].
    [Show full text]
  • Xstrata Technology Update Edition 13 – April 2012 Building Plants That Work
    xstrata technology update Edition 13 – April 2012 Building plants that work You have to get a lot of things it takes another operator to get them right to build a plant that works. right. Someone who has lived through the problems, had to do the maintenance, operated during a midnight power Of course the big picture must be right – doing the right project, in the right place, failure, cleaned up the spill. Someone at the right time. who has “closed the loop” on previous designs; lived with previous decisions After that, the devil is in the detail. You and improved them, over and over. need a sound design, good execution, good commissioning, and ongoing This is why Xstrata Technology provides support after commissioning. You need a technology “package”. Just as a car to operate and maintain your plant in is more than an engine, technology is the long run, long after the construction more than a single piece of equipment. company has left. That’s when all the Technology is a system. All the elements “little” details become important – how of the system have to work with each easy is it to operate, how good is the other and with the people in the plant. maintenance access, what happens in We want our cars designed by people a power failure, where are the spillage who love cars and driving. So should points and how do we clean them our plants be designed by people with up? Are the instruments reliable and experience and passion to make each is the process control strategy robust one work better than the last.
    [Show full text]
  • National Instrument 43-101 Technical Report
    ASANKO GOLD MINE – PHASE 1 DEFINITIVE PROJECT PLAN National Instrument 43-101 Technical Report Prepared by DRA Projects (Pty) Limited on behalf of ASANKO GOLD INC. Original Effective Date: December 17, 2014 Amended and Restated Effective January 26, 2015 Qualified Person: G. Bezuidenhout National Diploma (Extractive Metallurgy), FSIAMM Qualified Person: D. Heher B.Sc Eng (Mechanical), PrEng Qualified Person: T. Obiri-Yeboah, B.Sc Eng (Mining) PrEng Qualified Person: J. Stanbury, B Sc Eng (Industrial), Pr Eng Qualified Person: C. Muller B.Sc (Geology), B.Sc Hons (Geology), Pr. Sci. Nat. Qualified Person: D.Morgan M.Sc Eng (Civil), CPEng Asanko Gold Inc Asanko Gold Mine Phase 1 Definitive Project Plan Reference: C8478-TRPT-28 Rev 5 Our Ref: C8478 Page 2 of 581 Date and Signature Page This report titled “Asanko Gold Mine Phase 1 Definitive Project Plan, Ashanti Region, Ghana, National Instrument 43-101 Technical Report” with an effective date of 26 January 2015 was prepared on behalf of Asanko Gold Inc. by Glenn Bezuidenhout, Douglas Heher, Thomas Obiri-Yeboah, Charles Muller, John Stanbury, David Morgan and signed: Date at Gauteng, South Africa on this 26 day of January 2015 (signed) “Glenn Bezuidenhout” G. Bezuidenhout, National Diploma (Extractive Metallurgy), FSIAMM Date at Gauteng, South Africa on this 26 day of January 2015 (signed) “Douglas Heher” D. Heher, B.Sc Eng (Mechanical), PrEng Date at Gauteng, South Africa on this 26 day of January 2015 (signed) “Thomas Obiri-Yeboah” T. Obiri-Yeboah, B.Sc Eng (Mining) PrEng Date at Gauteng, South Africa on this 26 day of January 2015 (signed) “Charles Muller” C.
    [Show full text]
  • Improving Energy Efficiency Across Mineral Processing and Smelting Operations – a New Approach
    Improving Energy Efficiency Across Mineral Processing and Smelting Operations – A New Approach C L Evans1, B L Coulter2, E Wightman3 and A S Burrows4 ABSTRACT now reporting their performance in this area using a range of sustainability indicators. Among these, energy use and its impact With their commitment to sustainable development in an increasingly carbon-constrained world, many resources companies are focused on on climate change are priorities, with many company reducing the energy required to create their final products. In particular, sustainability reports including total energy use and associated the comminution and smelting of metal-bearing ores are both highly greenhouse gas (GHG) emissions in both absolute and relative energy-intensive processes. If resource companies can optimise the terms (ie normalised to a per unit product) among their key energy efficiency across these two processing stages, they can directly environmental sustainability indicators. Companies are setting reduce their overall energy consumption per unit mass of metal produced targets to achieve improvements in these indicators, but at the and thus reduce their greenhouse gas footprint. same time there is a global trend to more complex and lower Traditional grinding and flotation models seek to improve the grade orebodies which are more energy-intensive to process. As efficiency of mineral processing, but they do not consider the energy used a result, resource companies are having to become more by downstream metal production, eg smelting and refining. Concentrators innovative to improve the environmental sustainability and the and smelters individually may be running efficiently, but are they optimising energy consumption of the overall system? A key step towards efficiency of their operations.
    [Show full text]
  • Thermodynamic Efficiency of a Copper Comminution Process
    PONTIFICIA UNIVERSIDAD CATOLICA DE CHILE ESCUELA DE INGENIERIA THERMODYNAMIC EFFICIENCY OF A COPPER COMMINUTION PROCESS WILHELM ALEXANDER JACOB RODRÍGUEZ Thesis submitted to the Office of Research and Graduate Studies in partial fulfillment of the requirements for the Degree of Master of Science in Engineering Advisor: PHD. JORGE RAMOS GREZ Santiago de Chile, August, 2016 MMXVI año, Wilhelm Alexander Jacob Rodríguez PONTIFICIA UNIVERSIDAD CATOLICA DE CHILE ESCUELA DE INGENIERIA THERMODYNAMIC EFFICIENCY OF A COPPER COMMINUTION PROCESS WILHELM ALEXANDER JACOB RODRIGUEZ Members of the Committee: PHD. JORGE RAMOS GREZ PHD. WOLFRAM JAHN PHD .TIMOTHY GUTOWSKI PHD. ANGEL ABUSLEME Thesis submitted to the Office of Research and Graduate Studies in partial fulfillment of the requirements for the Degree of Master of Science in Engineering Santiago de Chile, August 2016 To my parents, siblings and girlfriend whom all, in their own way, showed their support during the development of this work. To Professor Ramos whom presented this great opportunity and guided throughout its study. To Dan and Tim who patiently coached and helped during this study. ii ACKNOWLEDGEMENTS To God almighty whom I owe everything I am, his blessing for having a privileged education and health, loving family and girlfriend and good friends. May he forever guide my path and that this work be of contribution for others, for their wellbeing and his glory. To my parents, whom I owe my whole lifetime education, love and support. To my father who gave me practical counsel, to my mother who gave me all the help she could give me. To my siblings whom, in their own way, helped and supported me during this project.
    [Show full text]
  • Weir: See Things Differently
    WEIR: SEE THINGS DIFFERENTLY. The Weir Group PLC Annual Report and Financial Statements 2020 CONTENTS FINANCIAL & NON-FINANCIAL SUMMARY Strategic Report ORDERS2 1 Our Business at a Glance 2 £1.9bn 2.9 2.9 Our ‘We are Weir’ Strategic Framework 4 -13% Chairman’s Statement 6 2.3 2.2 150 years of Weir 8 1.9 2.1 Chief Executive’s Strategic Review 10 1.9 Our 2020 Key Performance Indicators 14 Total Group Discontinued Operations Iron Bridge Aftermarket Contract 16 Continuing Operations Our Markets 18 Our Business Model 20 2016 2017 2018 2019 2020 The Global Pandemic 22 Stakeholder Engagement 24 REVENUE Safety in Mining 26 1 Financial Review 28 £2bn 2.8 2.8 Sustainable Society 32 -4% 2.3 2.3 Operational Review 34 1.9 2.0 2.0 Risk Management 39 Principal Risks and Uncertainties 43 Total Group Our Sustainability Review 52 Discontinued Operations Continuing Operations Non-financial Reporting 64 2016 2017 2018 2019 2020 Corporate Governance Introduction from the Chairman 70 ADJUSTED PROFIT BEFORE TAX3 TOTAL STATUTORY LOSS AFTER TAX Governance at a Glance 72 1 Board of Directors 74 £255m (£149m) Group Executive 78 -5% +61% 333 299 Board Statements 79 232 247 Division of Responsibilities 80 269 255 Total Group 171 Board Meetings 81 Discontinued Operations Board Activities and Governance in Action 82 (£23m loss in 2020) Governance in Action - Meet the Board Session 83 Continuing Operations Shareholder Engagement 84 2016 2017 2018 2019 2020 Boardroom Practice 85 Board Effectiveness 86 TOTAL INCIDENT RATE4 Accountability 88 Viability Statement 89 0.37
    [Show full text]
  • Stillwater Mine, 45°23'N, 109°53'W East Boulder Mine, 45°30'N, 109°05'W
    STILLWATER MINING COMPANY TECHNICAL REPORT FOR THE MINING OPERATIONS AT STILLWATER MINING COMPANY STILLWATER MINE, 45°23'N, 109°53'W EAST BOULDER MINE, 45°30'N, 109°05'W (BEHRE DOLBEAR PROJECT 11-030) MARCH 2011 PREPARED BY: MR. DAVID M. ABBOTT, JR., CPG DR. RICHARD L. BULLOCK, P.E. MS. BETTY GIBBS MR. RICHARD S. KUNTER BEHRE DOLBEAR & COMPANY, LTD. 999 Eighteenth Street, Suite 1500 Denver, Colorado 80202 (303) 620-0020 A Member of the Behre Dolbear Group Inc. © 2011, Behre Dolbear Group Inc. All Rights Reserved. www.dolbear.com Technical Report for the Mining Operations at Stillwater Mining Company March 2011 TABLE OF CONTENTS 3.0 SUMMARY ..................................................................................................................................... 1 3.1 INTRODUCTION .............................................................................................................. 1 3.2 EXPLORATION ................................................................................................................ 1 3.3 GEOLOGY AND MINERALIZATION ............................................................................ 2 3.4 DRILLING, SAMPLING METHOD, AND ANALYSES ................................................. 3 3.5 RESOURCES AND RESERVES ....................................................................................... 3 3.6 DEVELOPMENT AND OPERATIONS ........................................................................... 5 3.6.1 Mining Operation ..................................................................................................
    [Show full text]
  • Gravity Concentration in Artisanal Gold Mining
    minerals Review Gravity Concentration in Artisanal Gold Mining Marcello M. Veiga * and Aaron J. Gunson Norman B. Keevil Institute of Mining Engineering, University of British Columbia, Vancouver, BC V6T 1Z4, Canada; [email protected] * Correspondence: [email protected] Received: 21 September 2020; Accepted: 13 November 2020; Published: 18 November 2020 Abstract: Worldwide there are over 43 million artisanal miners in virtually all developing countries extracting at least 30 different minerals. Gold, due to its increasing value, is the main mineral extracted by at least half of these miners. The large majority use amalgamation either as the final process to extract gold from gravity concentrates or from the whole ore. This latter method has been causing large losses of mercury to the environment and the most relevant world’s mercury pollution. For years, international agencies and researchers have been promoting gravity concentration methods as a way to eventually avoid the use of mercury or to reduce the mass of material to be amalgamated. This article reviews typical gravity concentration methods used by artisanal miners in developing countries, based on numerous field trips of the authors to more than 35 countries where artisanal gold mining is common. Keywords: artisanal mining; gold; gravity concentration 1. Introduction Worldwide, there are more than 43 million micro, small, medium, and large artisanal miners extracting at least 30 different minerals in rural regions of developing countries (IGF, 2017) [1]. Approximately 20 million people in more than 70 countries are directly involved in artisanal gold mining (AGM), with an estimated gold production between 380 and 450 tonnes per annum (tpa) (Seccatore et al., 2014 [2], Thomas et al., 2019 [3], Stocklin-Weinberg et al., 2019 [4], UNEP, 2020 [5]).
    [Show full text]