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Clay, a raw material for aluminum.
Iron Age 1970 Jan; 206(13):76-78
Three of the most attractive processes for producing alumina from clay are briefly described. Previously published Bureau of Mines estimated capital and operating costs for these processes--nitric acid, sulfurous acid-caustic purification, and hydrochloric acid- isopropyl ether extraction--are compared with costs for the Bayer process.
OP; Journal Article
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Page last reviewed: September 2, 2020
Content source: National Institute for Occupational Safety and Health Education and Information Division