Process for the recovery of gold

Details Process for the recovery of gold Process for the recovery of gold

1989-08-18

1990-06-26

Stoll, Robert L.

Specialized metallurgical processes, compositions for use therei

Processes

Producing or treating free metal

75722, 423 27, 423 38, 423 46, 423DIG14, 423DIG17, 210620, 210684, 210688, 210912, C22B 1104

Patent

active

049369105

ABSTRACT:
Process for recovering gold from a leachate containing AuBr.sub.4.sup.-- comprising contacting the leachate with a quantity of sphagnum peat moss under conditions effective to concentrate the gold on the moss, and thereafter recovering the gold from the sphagnum peat moss.

REFERENCES:
patent: 267842 (1882-11-01), DeFiganiere
patent: 411047 (1889-09-01), MacArthur
patent: 3147219 (1964-09-01), Paterson
patent: 4190489 (1980-02-01), Bahl et al.
patent: 4637865 (1987-01-01), Sergent et al.
Dissanayake et al., "Peat as a Metal-Trapping Material in the Purification of Industrial Effluents", Intern. J. Environmental Studies, 1981, vol. 17, pp. 233-238.
Viraraghavan et al., "Use of Peat in the Treatment of Oil-in-Water Emulsions", Proceedings of the 42nd Industrial Waste Conference May 12, 13, 14, 1987, pp. 465-474.
Kelly et al., "Use of Moss-Bags for Monitoring Heavy Metals in Rivers", Wat. Res. vol. 21, No. 11, 1987, pp. 1429-1435.
Coupal et al., "The Treatment of Waste Waters with Peat Moss", Wat. Res. vol. 10, 1976, pp. 1071-1076.
Gosset et al., "Batch Metal Removal by Peat", Wat. Res. vol. 20, 1986, pp. 21-26.
Cavalier et al., "Preparation of Metal-Impregnated Peat Carbons and Characterization of the Platinum Dispersion", Carbon, vol. 16, 1978, pp. 21-26.
Cameron et al., "Use of Mosses as Collectors of Airborne Heavy Metals Near a Smelting Complex", Water, Air, and Soil Pollution 7, 1977, pp. 117-125.
Fuchfman, "Peat Industrial Chemistry and Technology", Academic Press (New York, N.Y.; 1980) chaps. 2, 3 and 7.

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