Method of removing mercury from solution

Details Method of removing mercury from solution Method of removing mercury from solution

1995-04-19

1997-02-04

Bos, Steven

Chemistry of inorganic compounds

Treating mixture to obtain metal containing compound

Group iib metal

C22B 4300

Patent

active

055995152

ABSTRACT:
A method for selectively removing mercury from solutions, preferably solutions containing gold, such as gold cyanidation solutions, is provided comprising treating the solutions with dialkyldithiocarbamates, preferably potassium dimethyldithiocarbamate, to form stable mercury carbamate precipitates.

REFERENCES:
patent: 1952976 (1934-03-01), Dowsett et al.
patent: 3561946 (1971-02-01), Braxton et al.
patent: 4133755 (1979-01-01), Tarao et al.
patent: 4289532 (1981-09-01), Matson et al.
patent: 4528166 (1985-07-01), McDougall
patent: 4619744 (1986-10-01), Horton
patent: 4678584 (1987-07-01), Elfline
patent: 4681628 (1987-07-01), Griffin et al.
patent: 4726939 (1988-02-01), Touro
patent: 4731187 (1988-03-01), Moriya et al.
patent: 4734270 (1988-03-01), Touro et al.
patent: 4957634 (1990-09-01), Bowers, Jr. et al.
patent: 5342449 (1994-08-01), Holbein et al.
patent: 5372726 (1994-12-01), Straten
Bond, A. M. et al., "Electrochemical Investigation of Kinetic and Thermodmic Aspects of Oxidation and Reduction of Mononuclear and Binuclear Rhodium Dithiocarbamate and Diselenocarbamate Complexes," Inorg. Chem. (1989) 28:54-59, no month.
Diaz, X. et al., "Selective Solvent Extraction of Gold from Mercury in Concentrated Alkaline Cyanide Solutions," Minerals, Metals and Materials Soc. (1993) 245-257 EPD Congress 1993, no month.
Galvez, J. et al., "Catalytic Hydrogen Wave in Presence of Dimethyldithiocarbamate and Cobalt II," Electrochemical Acta (1984) 29:253-256, no month.
Ibrado, A. S. and Fuerstenau, D. W., "Adsorption of the Cyano Complexes of Ag(1), Cu(I), Hg(II), Cd(II) and Zn(II) on Activated Carbon," Minerals and Metallurgical Processing (Feb. 1989) pp. 23-28.
Leja, J., "Flotation Surfactants," Surface Chemistry of Froth Flotation (1982) Plenum Press, New York, pp. 258-259, no month.
Marsden, J. and House, I., "The Chemistry of Gold Extraction (Great Britain, Ellis Horwood Limited)", 1992, p. 397, no month.
Miertus, S. and Vladimir, F., "Theoretical study of the electron structure and properties of dithiocarbamates and their complexes with transition metals," Collect. Czech. Chem. Commun. (1984) 49:2744-2750. no month.
Miller, J. D. et al., "Technical Solutions for Pollution Prevention in the Mining & Mineral Processing Industries," Proceedings of the Engineering Foundation (Jan. 1995) 1-15.
Porcella, D., "Mercury in the Environment: Biogeochemistry," Mercury Pollution, Integration and Synthesis, (C. Watras, J. Huckabee, Eds.) USA, Lewis Publisher, (1994) pp. 3-19, no month.
Sandberg, R. G. et al., "Calcium Sulfide Precipitation of Mercury During Cyanide Leaching of Gold Ores," (1984), RI 8907, USBM, no month.
Staker, W. L. and Sandberg, R. G., "Selective Elution of Mercury, Silver and Gold from Strong-Base Anion Exchange Resins," (1986) RI9093, USBM, no month.
Staker, W. L. et al., "Mercury Removal from Gold Cyanide Leach Solutions," Gold and Silver: Heap and Dump Leaching Practice, 1984, pp. 119-127, no month.
Wan, Q. et al., "High-Performance Liquid Chromatographic Determination of Aliphatic Secondary Amines as Mercury (II) Chelates," Chem Abstracts (1986) vol. 105, No. 53850v, no month.
Sharpe, A. G., "The Chemistry of Cyano Complexes of the Transition Metals," Academic Press Inc. (London) Ltd. (1976) pp. 291-299, no month.
Chem. Abstract 106:89575, Snukiskis, J, et al, Liet. TSR Mokslu Akad. Darb., Ser. B(5), pp. 46-51, 1986, no month.

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