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Extraction Of Alumina From Feldspar Ore

Apr 28 2017 THE BAUXITE PURIFICATION PROCESS1} Chemical purification of raw materials to form a high purity alumina. 2} Reduction of alumina. STEP 1 PURIFICATION TO FORM HIGH PURITY ALUMINA There it is purified to alumina using the Bayer process which is based on the fact that silica is an acidic oxide alumina is amphoteric and both iron oxide and titania are basic.

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