Tungsten Recovery from Searles Lake Brines.
Altringer-PB; Marchant-WN; Dannenberg-RO; Brooks-PT
NTIS: PB 289 866 :15 pages
The Bureau of Mines conducted laboratory tests to devise a procedure for recovering a marketable grade of tungsten from the brine of Searles Lake, California. The brine contains only 56 parts per million of tungsten (70 parts per million of wo3). Using ion exchange resins synthesized by Bureau chemists, 98 percent of the tungsten was extracted from the brine and 92 percent of the tungsten was recovered as a marketable iron-tungsten concentrate containing 44 percent tungstic oxide. Although major technical problems have largely been resolved, research is progressing to escalate testing in a process-development unit to provide more reliable data for an economic appraisal.
IH; Report of Investigation;
NTIS Accession No.
NTIS: PB 289 866