Title:
Process for extracting rare earths from ores and residues
United States Patent 2900231
Inventors:
Kremers, Howard E.
Newman, David W.
Kautzky, Frank C.
Publication Date:
08/18/1959
Export Citation:
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Assignee:
AMERICAN POTASH & CHEM CORP
Primary Class:
423/21.1
Other Classes:
423/464
International Classes:
C22B59/00; C22B59/00
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US Patent References:
1577411Art of recovering rare metals from their ores