Gallium in 2017 (PDF)
Total Page:16
File Type:pdf, Size:1020Kb
Load more
Recommended publications
-
Preparation of Aromatic Carbonyl Compounds
~" ' MM II II II Ml I III II II I Ml II I II J European Patent Office © Publication number: 0 178 184 B1 Office_„. europeen- desj brevets^ » © EUROPEAN PATENT SPECIFICATION © Date of publication of patent specification: 28.04.93 © Int. CI.5: C07C 45/45, C07C 49/76, C07C 51/58 © Application number: 85307320.3 @ Date of filing: 11.10.85 © Preparation of aromatic carbonyl compounds. © Priority: 11.10.84 US 659598 (73) Proprietor: RAYCHEM CORPORATION (a Dela- ware corporation) @ Date of publication of application: 300 Constitution Drive 16.04.86 Bulletin 86/16 Menlo Park, California 94025(US) © Publication of the grant of the patent: @ Inventor: Horner, Patrick James 28.04.93 Bulletin 93/17 139 Buckthorn Way Menlo Park California 94025(US) © Designated Contracting States: Inventor: Jansons, Vlktors AT BE CH DE FR GB IT LI NL SE 123 New York Avenue Los Gatos California 95030(US) References cited: Inventor: Gors, Helnrlch Carl EP-A- 0 024 286 EP-A- 0 069 598 2508 Mardell Way DE-A- 2 014 514 GB-A- 1 420 506 Mountain View California, 94043(US) GB-A- 2 103 604 US-A- 1 874 580 US-A- 3 282 989 Representative: Jay, Anthony William et al Raychem Limited Intellectual Property Law Department Faraday Road Dorcan Swindon Wiltshire (GB) 00 00 00 Note: Within nine months from the publication of the mention of the grant of the European patent, any person ® may give notice to the European Patent Office of opposition to the European patent granted. Notice of opposition CL shall be filed in a written reasoned statement. -
Comparison of Trimethylgallium and Triethylgallium As “Ga” Source
Comparison of trimethylgallium and triethylgallium as “Ga” source materials for the growth of ultrathin GaN films on Si (100) substrates via hollow-cathode plasma- assisted atomic layer deposition Mustafa AlevliAli Haider, Seda Kizir, Shahid A. Leghari, and Necmi Biyikli Citation: Journal of Vacuum Science & Technology A: Vacuum, Surfaces, and Films 34, 01A137 (2016); doi: 10.1116/1.4937725 View online: http://dx.doi.org/10.1116/1.4937725 View Table of Contents: http://avs.scitation.org/toc/jva/34/1 Published by the American Vacuum Society Articles you may be interested in Substrate temperature influence on the properties of GaN thin films grown by hollow-cathode plasma-assisted atomic layer deposition Journal of Vacuum Science & Technology A: Vacuum, Surfaces, and Films 34, 01A12501A125 (2015); 10.1116/1.4936230 Atomic layer deposition of GaN at low temperatures Journal of Vacuum Science & Technology A: Vacuum, Surfaces, and Films 30, 01A12401A124 (2011); 10.1116/1.3664102 Low-temperature self-limiting atomic layer deposition of wurtzite InN on Si(100) Journal of Vacuum Science & Technology A: Vacuum, Surfaces, and Films 6, 045203045203 (2016); 10.1063/1.4946786 Kinetics of thermal decomposition of triethylgallium, trimethylgallium, and trimethylindium adsorbed on GaAs(100) Journal of Vacuum Science & Technology A: Vacuum, Surfaces, and Films 9, (1998); 10.1116/1.577146 Substrate impact on the low-temperature growth of GaN thin films by plasma-assisted atomic layer deposition Journal of Vacuum Science & Technology A: Vacuum, Surfaces, -
Beitrag Zur Chemie Des Galliums the Synthesis and Some Properties of Gallium Ethoxide
52 4 R. REINMANN UND A. TANNER Beitrag zur Chemie des Galliums The Synthesis and some Properties of Gallium Ethoxide R . R e in m a n n u n d A . T anner Forschungsinstitut der Schweizerischen Aluminium A.G., Neuhausen am Rheinfall/Schweiz (Z. Naturforsdig. 20 b, 524—525 [1965] ; eingegangen am 6. März 1965) Experimental amounts in the range of 50 g each of gallium triethoxide have been prepared by reacting gallium trichloride with freshly prepared sodium ethoxide in absolute alcohol. Chloride, always present in the raw product, can be eliminated by precipitation with silver nitrate. Gallium triethoxide crystallizes in colourless needles, melting at 144.5 °C. The density of the very hygro scopic product is 1.23 g/cc. It is volatile at elevated temperature in vacuum. By alcohol interchange, the ethoxide can easily be transformed to the isopropoxide. Although many of the various alkoxides are Sodium metal is carefully freed from its superficial described in the literature, those of gallium were crust in a glove box under dry nitrogen, weighed, and lacking until recently. dissolved in ethanol under reflux. The stoichiometric amount of gallium trichloride, dissolved in cooled etha The purpose of this investigation was to find a nol, is added dropwise to the sodium ethoxide solution. suitable method for the preparation of gallium The mixture is finally heated to ebullition for about ethoxide, and to evaluate also some properties of 30 minutes. After cooling, when the NaCl and the the new compound. major part of the Gallium ethoxide are precipitated, benzene is added to about 30 — 40% of the final When writing this manuscript, we came across the mixture. -
Platinum Group Metals Patent Analysis and Mapping a REVIEW of PATENTING TRENDS and IDENTIFICATION of EMERGING TECHNOLOGIES
DOI: 10.1595/147106708X362735 Platinum Group Metals Patent Analysis and Mapping A REVIEW OF PATENTING TRENDS AND IDENTIFICATION OF EMERGING TECHNOLOGIES By Richard Seymour Johnson Matthey Technology Centre, Blounts Court, Sonning Common, Reading RG4 9NH, U.K.; E-mail: [email protected] The patent literature contains a wealth of detailed information about existing and new uses for the platinum group metals (pgms). While excellent searching tools have existed for many years for identifying patents relating to specific topics, it is only relatively recently that it has been feasible to map the complete archive of patent literature to identify important trends relating to potential new applications. This paper summarises the results of such an exercise for the pgms carried out in early 2008 and shows that one such ‘hot spot’ relates to organic light emitting diodes (OLEDs). Previous articles in this Journal have described Matthey Technology Centre is Aureka® (a product the importance of patents as a key source of techni- available from Thomson Reuters) (3), which cal and commercial intelligence (1, 2). The use of includes patent data sets from the Patent patent mapping to visualise large sets of patent data Cooperation Treaty (PCT) and European Patent and to identify trends contained within that data has offices, plus a range of national patent collections also been demonstrated (2). The present paper fur- including those of the U.S.A., Japan, the U.K., ther develops these themes by examining the patent France and Germany. With the exception of Japan, literature on pgms published since 1983, in particu- these collections contain full-text patent docu- lar that on the minor metals iridium and ruthenium. -
~Ui&£R5itt! of J\Rij!Oua
Minerals and metals of increasing interest, rare and radioactive minerals Authors Moore, R.T. Rights Arizona Geological Survey. All rights reserved. Download date 06/10/2021 17:57:35 Link to Item http://hdl.handle.net/10150/629904 Vol. XXIV, No.4 October, 1953 ~ui&£r5itt! of J\rij!oua ~ul1etiu ARIZONA BUREAU OF MINES MINERALS AND METALS OF INCREASING INTEREST RARE AND RADIOACTIVE MINERALS By RICHARD T. MOORE ARIZONA BUREAU OF MINES MINERAL TECHNOLOGY SERIES No. 47 BULLETIN No. 163 THIRTY CENTS (Free to Residents of Arizona) PUBLISHED BY ~tti£ll~r5itt! of ~rh!Omt TUCSON, ARIZONA TABLE OF CONTENTS INTRODUCTION 5 Acknowledgments 5 General Features 5 BERYLLIUM 7 General Features 7 Beryllium Minerals 7 Beryl 7 Phenacite 8 Gadolinite 8 Helvite 8 Occurrence 8 Prices and Possible Buyers ,........................................ 8 LITHIUM 9 General Features 9 Lithium Minerals 9 Amblygonite 9 Spodumene 10 Lepidolite 10 Triphylite 10 Zinnwaldite 10 Occurrence 10 Prices and Possible Buyers 10 CESIUM AND RUBIDIUM 11 General Features 11 Cesium and Rubidium Minerals 11 Pollucite ..................•.........................................................................., 11 Occurrence 12 Prices and Producers 12 TITANIUM 12 General Features 12 Titanium Minerals 13 Rutile 13 Ilmenite 13 Sphene 13 Occurrence 13 Prices and Buyers 14 GALLIUM, GERMANIUM, INDIUM, AND THALLIUM 14 General Features 14 Gallium, Germanium, Indium and Thallium Minerals 15 Germanite 15 Lorandite 15 Hutchinsonite : 15 Vrbaite 15 Occurrence 15 Prices and Producers ~ 16 RHENIUM 16 -
INTERVIEW: Swiss Fund CDMR Argues Investment Case for Minor Metals
INTERVIEW: Swiss fund CDMR argues investment case for minor metals LONDON (Metal-Pages) 15-Apr-15. While investment funds speculating in base metals are a fairly routine occurrence, those same funds rarely get involved with minor metals or rare earths. If they do, they tend to hold an equity stake in the mining companies rather than in the actual metal. Over the years some smaller funds and hedge funds have made forays into minor metals but those kind of speculative investors are still few and far between. One of them is the Swiss firm Compagnie des Métaux Rares. It operates a Luxembourg-based fund with a stake in physical minor metals, holding 12 metals in warehouses in Rotterdam. CDMR was set up by Vincent Donnen and Gregoire Teze, two former fund analysts with extensive experience of working in Asia, who took it off the ground with $1mn of their own money and another $4mn raised from their network. Now they are looking to attract a total of $20mn to $25mn into the fund which has been operational since last April. The attraction of minor metals, explains Donnen, stems from the fact that the majority of them are currently undervalued and yet demand from the industries which used them such as electronics, car manufacturing or aircraft building is on the rise. At the same time most of these metals are not produced on their own but rather as a by-product of base and precious metals such as copper, nickel or platinum. Aircraft manufacture, electronics and clean energy will drive minor metal demand Some of Donnen’s top choices include rhenium, a popular metal in aircraft building, rhodium and ruthenium, both used in catalytic converters in cars, tellurium and several metals used in electronics. -
The Synthesis and Characterization of Novel Group 13 Nanostructured Building Block Heterogeneous Silicate Catalysts
University of Tennessee, Knoxville TRACE: Tennessee Research and Creative Exchange Doctoral Dissertations Graduate School 8-2012 The Synthesis and Characterization of Novel Group 13 Nanostructured Building Block Heterogeneous Silicate Catalysts Joshua G. Abbott Follow this and additional works at: https://trace.tennessee.edu/utk_graddiss Part of the Catalysis and Reaction Engineering Commons, Inorganic Chemistry Commons, and the Materials Chemistry Commons Recommended Citation Abbott, Joshua G., "The Synthesis and Characterization of Novel Group 13 Nanostructured Building Block Heterogeneous Silicate Catalysts. " PhD diss., University of Tennessee, 2012. https://trace.tennessee.edu/utk_graddiss/1430 This Dissertation is brought to you for free and open access by the Graduate School at TRACE: Tennessee Research and Creative Exchange. It has been accepted for inclusion in Doctoral Dissertations by an authorized administrator of TRACE: Tennessee Research and Creative Exchange. For more information, please contact [email protected]. To the Graduate Council: I am submitting herewith a dissertation written by Joshua G. Abbott entitled "The Synthesis and Characterization of Novel Group 13 Nanostructured Building Block Heterogeneous Silicate Catalysts." I have examined the final electronic copy of this dissertation for form and content and recommend that it be accepted in partial fulfillment of the equirr ements for the degree of Doctor of Philosophy, with a major in Chemistry. Craig E. Barnes, Major Professor We have read this dissertation and recommend its acceptance: Craig E. Barnes, Zi-ling Xue, Michael Best, Joseph J. Bozell Accepted for the Council: Carolyn R. Hodges Vice Provost and Dean of the Graduate School (Original signatures are on file with official studentecor r ds.) The Synthesis and Characterization of Novel Group 13 Nanostructured Building Block Heterogeneous Silicate Catalysts A Dissertation Presented for the Doctor of Philosophy Degree The University of Tennessee, Knoxville Josh G. -
Safety Data Sheet
SAFETY DATA SHEET Creation Date 16-May-2011 Revision Date 18-Jan-2021 Revision Number 2 SECTION 1: IDENTIFICATION OF THE SUBSTANCE/MIXTURE AND OF THE COMPANY/UNDERTAKING 1.1. Product identifier Product Description: Gallium(III) chloride, ultra dry Cat No. : 45026 CAS-No 13450-90-3 EC-No. 236-610-0 Molecular Formula GaCl3 Reach Registration Number - 1.2. Relevant identified uses of the substance or mixture and uses advised against Recommended Use Laboratory chemicals. Uses advised against No Information available 1.3. Details of the supplier of the safety data sheet Company Alfa Aesar . Avocado Research Chemicals, Ltd. Shore Road Port of Heysham Industrial Park Heysham, Lancashire LA3 2XY United Kingdom Office Tel: +44 (0) 1524 850506 Office Fax: +44 (0) 1524 850608 E-mail address [email protected] www.alfa.com Product Safety Department 1.4. Emergency telephone number Call Carechem 24 at +44 (0) 1865 407333 (English only); +44 (0) 1235 239670 (Multi-language) SECTION 2: HAZARDS IDENTIFICATION 2.1. Classification of the substance or mixture CLP Classification - Regulation (EC) No 1272/2008 Physical hazards Based on available data, the classification criteria are not met Health hazards ______________________________________________________________________________________________ ALFAA45026 Page 1 / 10 SAFETY DATA SHEET Gallium(III) chloride, ultra dry Revision Date 18-Jan-2021 ______________________________________________________________________________________________ Skin Corrosion/Irritation Category 1 B (H314) Serious Eye Damage/Eye Irritation Category 1 (H318) Environmental hazards Based on available data, the classification criteria are not met Full text of Hazard Statements: see section 16 2.2. Label elements Signal Word Danger Hazard Statements H314 - Causes severe skin burns and eye damage EUH014 - Reacts violently with water Precautionary Statements P280 - Wear protective gloves/protective clothing/eye protection/face protection P301 + P330 + P331 - IF SWALLOWED: Rinse mouth. -
Minor Metals—Ready for the Circular Economy in Conversation with Derek Raphael, Derek Raphael & Co
ISSN 2056-6735 (Online) Minor Metals—Ready for the Circular Economy In Conversation with Derek Raphael, Derek Raphael & Co. The magazine of the Minor Metals Trade Association 5th Edition 2016/May www.mmta.co.uk 1 We focus on quality Established over 21 years with an unrivalled reputation for supplying pure metals and high temperature super alloys into the aerospace, oil, medical and associated industries Accredited ISO 9001, ISO 14001, BS OHSAS 18001 We buy & sell Specialists in the supply of Mo Ta W Hf Nb All Nickel / Cobalt based alloys Full revert management/processing Shot blast Size reduction/plasma Bar cutting Turnings degreased Suppliers of High Temp Raw Materials & Pure Metals Call us on 01909 569930 Email us at [email protected] Website www.advancedalloys.co.uk 2 Counterparty Insolvency INSIDE THIS ISSUE & Conference Review 2016 4-6 Warehouse Fraud Letter from North America 7 Finishing with a ‘bonus’ Q & A on Brexit and Commodities Minor Metals in the Circular 8-9 Economy MMTA & Holman Fenwick Willan Tea with the MMTA—Derek 10-12 Raphael Breakfast Seminar Liquidmetal (and Terminators) 13-14 Swordmaking 16-17 26th May—8:30-10:30am, London In Brief 18-19 We are very pleased to announce that new MMTA Member, Holman Fenwick Willan is holding a breakfast seminar in partnership with the MMTA at its London office. The MMTA promotes essential elements that add This event is free to attend quality, safety and Draft programme: enjoyment to our lives. Registration & Breakfast The MMTA is the world's leading minor metals industry Session 1: Counterparty Insolvency - a case study on: organisation. -
Minor and Trace Metals in Slurry Slime in Mined-Out Ponds in the Kinta Valley, Perak
Geological Society of Malaysia Annual Geological Conference 2001 June 2-3 2001, Pangkor Island, Perak Darul Ridzuan, Malaysia Minor and trace metals in slurry slime in mined-out ponds in the Kinta Valley, Perak CHOW WENG SUM Minerals and Geoscience Department Malaysia 201h Floor, Tabung Haji Building, Jalan Tun Razak, P.O.Box 11110, 50736 Kuala Lumpur Abstract: The Kinta Valley was renowned as the largest tin field in the world and up to 1989, there were 70,158 hectares of land under mining leases. Thereafter, the tin mining industry took a down-tum due to falling tin metal prices and what is left of the industry is now mined-out land with abundant abandoned ponds. Stretching from Pengkalan near lpoh to Kampar in the south over a distance of 42km, there is a total of 1,194 mined-out ponds. About 66.7% of these ponds have slurry slime at the pond bottoms, with thickness varying from O.lm to 7.0m. Many of these abandoned ponds are used for the rearing of fish and ducks, or are cultivated with lotus plants. Slime is occasionally admixed with tailing sand for agricultural purposes. As such, should the slime be contaminated with heavy metals the food chain will be affected. Slime from eight ponds in the Kinta Valley was tested for minor and trace metals. Most of the slime contained higher concentrations of uranium and other trace heavy metals such asSn, Hg, Sb, 8i and Cd as compared to the norm in the earth's crust or stream sediments. Amongst the eight test ponds, slime from Pond 881 contained relatively higher concentrations of minor, radioactive and trace metals. -
List of Lists
United States Office of Solid Waste EPA 550-B-10-001 Environmental Protection and Emergency Response May 2010 Agency www.epa.gov/emergencies LIST OF LISTS Consolidated List of Chemicals Subject to the Emergency Planning and Community Right- To-Know Act (EPCRA), Comprehensive Environmental Response, Compensation and Liability Act (CERCLA) and Section 112(r) of the Clean Air Act • EPCRA Section 302 Extremely Hazardous Substances • CERCLA Hazardous Substances • EPCRA Section 313 Toxic Chemicals • CAA 112(r) Regulated Chemicals For Accidental Release Prevention Office of Emergency Management This page intentionally left blank. TABLE OF CONTENTS Page Introduction................................................................................................................................................ i List of Lists – Conslidated List of Chemicals (by CAS #) Subject to the Emergency Planning and Community Right-to-Know Act (EPCRA), Comprehensive Environmental Response, Compensation and Liability Act (CERCLA) and Section 112(r) of the Clean Air Act ................................................. 1 Appendix A: Alphabetical Listing of Consolidated List ..................................................................... A-1 Appendix B: Radionuclides Listed Under CERCLA .......................................................................... B-1 Appendix C: RCRA Waste Streams and Unlisted Hazardous Wastes................................................ C-1 This page intentionally left blank. LIST OF LISTS Consolidated List of Chemicals -
Niobium and Tantalum 2013
2013 Minerals Yearbook NIOBIUM AND TANTALUM [ADVANCE RELEASE] U.S. Department of the Interior November 2015 U.S. Geological Survey NIOBIUM (COLUMBIUM) AND TANTALUM By John F. Papp Domestic survey data and tables were prepared by Robin C. Kaiser, statistical assistant, and the world production table was prepared by Glenn J. Wallace, international data coordinator. In 2013, U.S. niobium apparent consumption (measured in Production contained niobium) was 8,140 metric tons (t), 16% less than that of 2012; U.S. tantalum apparent consumption (measured The major marketable niobium materials are ferroniobium and in contained tantalum) was 260 t, 40% less than that of 2012. niobium metal, ore, and oxide. The major marketable tantalum No domestic mine production of niobium or tantalum ore was materials are tantalum metal (unwrought and wrought alloys, reported. Compared to that of the previous year, the niobium metal, and powder), ore, and scrap. In 2013, neither niobium nor content of world production of niobium and tantalum mineral tantalum domestic mine production was reported. concentrates decreased by 8.5%, whereas tantalum content NioCorp Developments Ltd., formerly Quantum Rare Earth increased by 9%. Measured in gross quantity, U.S. exports of Developments Corp., reported 19.3 million metric tons (Mt) of niobium materials increased 29%, whereas imports decreased indicated resources at 0.67% niobium pentoxide (Nb2O5) and 16%; U.S. exports of tantalum materials increased 16%, and 83.3 Mt of inferred resources at 0.63% Nb2O5 to a cutoff grade imports increased 31%. The leading use of niobium was as an of 0.40% Nb2O5 at its Elk Creek, NE, property.