JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD

Course Objective

The main objective of the course is to expose the student to understand

basic principles of extraction of important non ferrous metals.

Course Outcome

Student will be in a position to ascertain the method of extraction of a

particular metal and also understands the importance of recovery of byproducts during extraction. Upon successful completion of this course, the student will be able to:

• Describe and explain processes and reactors for extraction and refining of metals and alloys
• Explain processes based on an thermodynamic perspective
• Describe and explain material and energy flows related to extraction of metals and alloys
• Describe and explain ore treatment techniques
• Plan and carry out experimental work related to extraction and refining of non ferrous metals

UNIT - I

COPPER: Principal Ores and Minerals: Matte smelting – Blast furnace, Reverberatory, Electric furnace, Flash: Converting: Continuous production of blister Copper: Fire refining: Electrolytic refining: Hydro-Metallurgical copper extraction: Leaching processes, Recovery of copper from leach solutions: Electro-winning.

UNIT - II

ZINC: General Principles: Roasting, Horizontal and vertical retort processes: Production by imperial smelting: Leaching purification: Electrolysis, Refining. LEAD: Smelting – smelting, Reduction process, Roast Reaction process, direct smelting reduction process – Air flash smelting, oxygen flash, oxygenslip bath smelting, QSL process, refining of lead bullion. Pyro and electrolytic refining

UNIT - III

ALUMINUM: Raw materials, production of pure Al2O3, Bayer’s process, Devillepechiney Process, Hall - Heroult cell, electrolyte, electrode reactions, Current efficiency, Cell Voltage, Anode effect: Refining of Aluminum, Alternative processes of aluminium production.

UNIT - IV

MAGNESIUM: Production of a hydrous Magnesium chloride from sea water and magnesite. Electro-winning practice and problem. Refining, Pidgeon and Hansgrig processes. TITANIUM: Upgrading of ilmenite, chlorination of titania, Kroll’s process. Refining.

R16 B.TECH METALLURGY AND MATERIALS ENGG.

UNIT - V

URANIUM: Acid and alkali processes for digestion of uranium ores, Purification of crude salt, Production of reactor grade UO2 and uranium. Simplified flow sheets for the extraction of nickel, tungsten and gold. Review of non-ferrous metal industries in India. Extraction of Zirconium

TEXT BOOKS:

• 1. Extraction of Non-Ferrous Metals - HS Ray, KP Abraham and R. Sridhar
• 2. Non Ferrous Extractive Metallurgy – G B Gill John Wiley & Sons 1980

REFERENCES:

• 1. Extractive Metallurgy of Copper - WGL Davln Port, U King, M Schelesinger and A.K. Biswas, Elsevier Science 2002
• 2. Metallurgy of Non-Ferrous Metals - WH Dennis.
• 3. Nuclear Chemical Engineering - Manstion Bendict and Thomas H. Pigfort R16 B.TECH METALLURGY AND MATERIALS ENGG.