1987年以来,铝工业生产出现了高潮,铝市场价格出人意料地增长。我国对铝的需求近几年也在迅速增长。1987年我国铝消费量估计为75万吨,比产量高出50％。但与此同时,大量的渣中铝却还未引起人们的足够重视。据苏联《有色金属》杂志1988年第8期报导,在盐渣中含有约15％的铝,和高达40％的氧化铝。在 Aluminum production has culminated since 1987, with the aluminum market price rising unexpectedly. Demand for aluminum in our country is also growing rapidly in recent years. In 1987, China’s aluminum consumption was estimated at 750,000 tons, 50% more than the output. However, at the same time, a large amount of slag aluminum has not yet attracted enough attention. According to the magazine “Nonferrous Metals”, No. 8, 1988, the Soviet Union reported that it contains about 15% aluminum and up to 40% alumina in the salt residue. in