Extraction & Refining of Aluminium

Abstract

The paper deals with the important sources of bauxite in India. The quartzitic bauxite of Madras has been discussed in detail. Digestion tests of Bihar bauxite and the Bayer's process are described.The consumption of raw materials for the manufacture of alumina and aluminium are given. Binding property of pitch and the types of electrodes are mentioned. The various theories of electrolytic reactions are described. The types of furnaces and their advantages and disadvantages are described. The refining of aluminium metal and some of its practical operating data are given. Prospects of this industry have been examined.