منابع مشابه
Extraction of alumina from clays and high-silica bauxites.
Two processes for extracting alumina from low-grade ores are described, one applicable to both clays and high-silica bauxites, and the other only to bauxites. In the former process, a line-containing sinter is prepared and annealed by cooling it slowly through the range of 1,3000 to 1,2000 C. The annealed sinter dusts to a powder which requires no grinding. This material is extracted with a sol...
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ژورنال
عنوان ژورنال: Nature
سال: 1988
ISSN: 0028-0836,1476-4687
DOI: 10.1038/333800a0