Liquid purification or separation – Processes – Including geographic feature
Patent
1980-11-20
1982-01-26
Therkorn, Ernest G.
Liquid purification or separation
Processes
Including geographic feature
210761, 210765, 210907, C02F 172
Patent
active
043127614
ABSTRACT:
A process for dewatering slimes produced in mining and mineral processing operations whereby wet oxidation at 150.degree.-320.degree. C. renders the solids rapidly settleable. Sufficient oxygen is supplied to meet or exceed oxygen demand. Inorganic solids in the oxidized product are separated and optionally further dewatered to a friable solid. Clarified water is recycled to the mining, mineral processing or other operations, or treated further, or discharged to the environment. Steam resulting from the wet oxidation is utilized in the mining or mineral processing operations.
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Frederick W. Camp, "Processing Athabasca Tar Sands--Tailings Disposal", The Canadian Journal of Chemical Engineering, vol. 55, Oct. 1977, pp. 581-591.
M. A. Kessick, "Clay Slimes from the Extraction of Alberta Oil Sands, Florida Phosphate Matrix and Other Mined Deposits", Canadian Mining and Metallurgical Bulletin, Feb. 1978.
Z. G. Havlena, First International Conference on the Future of Heavy Crude and Tar Sands, Edmonton, Alberta, Jun. 7, 1979.
Gitchel Wayne B.
Kerr Richard K.
Erickson Allen H.
Johnson Thomas L.
Therkorn Ernest G.
Wyatt B. Woodrow
Zimpro-AEC Ltd.
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