Department of Metallurgical and Materials Engineering 1. Subject C

INDIAN INSTITUTE OF TECHNOLOGY ROORKEE

NAME OF DEPARTMENT: Department of Metallurgical and Materials Engineering

1. Subject Code: MT-206 Course Title: Non-ferrous Metallurgy

2. Contact Hours: L: 3; T: 1; P: 0

3. Examination Duration (Hrs): Theory: 0 3 Practical: 0 0

4. Relative Weightage: CWS: 2 5 PRS: 0 0 MTE: 2 5 ETE: 5 0 PRE: 0 0

5. Credits: 0 4 6 Semester: Spring

7. Pre-requisite: Nil 8. Subject Area: DCC

9. Objective: To impart knowledge on extraction and refining of the common non-ferrous metals.

10. Details of the Course: Sl. No. Contents Contact Hours Pyro-metallurgical Processes 1 Calcination: Principles and considerations governing temperature and 2 pressure of calcinations for carbonates and hydroxides 2 Roasting: Physico-chemical principles of oxidizing and sulphatising 7 roasting, factors which govern their formation, decomposition and applications, Ellingham Diagrams 3 Smelting: Reduction smelting, matte smelting, role of fluxes in governing 5 the smelting temperature and quality of slag 4 Converting: Converting of metals as a refining technique and converting of matte as metal production technique, basic differences in the designs of 3 converters in the above cases 5 Refining: Fire-refining, distillation, liquation, drossing and tossing 2 Hydrometallurgical Processes 6 Leaching: Principles and objectives, factors which govern solubility of 4 salts and leaching efficiency, choice of leaching reagents. Conventional pressure and bacterial leaching – their principles, mechanisms, scopes and limitations 7 Purification of Leach-liquor: Principles of ion exchange and solvent 3 extraction as purification, concentration and separation technique. Principles of cementation 8 Recovery of values from leach-liquor: Gaseous reduction and cementation, their principles, mechanisms scopes and limitations 3 Electro-metallurgical Processes 9 Electrowinning: Extraction from aqueous salt solutions, hydrogen over 5 voltage, criteria for selection of anode and cathode. Extraction from fused salt solutions, criteria for selection of electrolyte compositions, anode effects – causes and remedial measures 10 Electrorefining: Refining using aqueous salt bath and fused salt baths, 3 criteria for selection of anode, cathode and electrolyte 11 Extraction of metals: like Magnesium, aluminum, tin, copper, lead, zinc, 5 nickel, titanium, rare earths, uranium, thorium, plutonium, beryllium, zirconium, gold, silver and platinum Total 42

11. Suggested Books: Year of S. No. Name of Authors /Books/ Publisher Publication/ Reprint 1 Dennis, W.H., “Non-ferrous Metallurgy”, Pitman. 1980 2 Bray, J.L., “Non-ferrous Production Metallurgy”, Wiley. 1985 3 Biswas, A.K. and Davenport, W.G., “Extractive Metallurgy of Copper”, 2002 Pergamon Press. 4 Emley, E.F., “Principles of Magnesium Technology”, Pergamon Press. 1981 5 Mantell, C.L., “Electro-chemical Engineering”, Tata-McGraw Hill. 1999