Chemistry of inorganic compounds – Treating mixture to obtain metal containing compound – Group ib metal
Patent
1983-06-10
1985-02-26
Doll, John
Chemistry of inorganic compounds
Treating mixture to obtain metal containing compound
Group ib metal
423 29, 423109, 423150, 75 2, 75 3, 75101R, 75105, 75118R, 75119, 75120, C01G 700
Patent
active
045017212
ABSTRACT:
Particlized mineral material, such as gold ore, silver ore, or coal, is subjected to a leaching process in a manner to maximize treatment effectiveness even when the particlized mineral material contains small fines. The material is slurried with a flocculating material and fibers, such as cellulosic fibers, fiberglass fibers, or ceramic fibers, and a liquid, and then is passed to the top of a leaching reactor. The slurry is continuously passed downwardly in the reactor while the leaching liquid, such as a cyanide solution, is passed counter-current to the slurry. Leaching liquid is removed from the top of the leaching reactor by a stilling well, and then passed through a carbon adsorber and reintroduced into the reactor. Leached slurry is passed to a continuous washing station being utilized as a slurrying liquid for the particlized mineral material.
REFERENCES:
patent: 2479930 (1946-08-01), Herkenhoff et al.
patent: 3151972 (1964-10-01), Streib
patent: 3788841 (1974-01-01), Agarwal et al.
patent: 4071611 (1978-01-01), Chelson
patent: 4174997 (1979-11-01), Richter
patent: 4256705 (1981-03-01), Heinen et al.
patent: 4256706 (1981-03-01), Heinen et al.
Heinen et al, "Enhancing Percolation Rates in Heap Leaching of Gold-Silver Ores", International Bureau of Mines, 1979.
Perry, "Refining Zinc Silicate Ore by Special Leaching Technique", Chemical Engineering, 10/10/66; pp. 182-184.
Mager, "Technical and Commercial Aspects of the Refining of Leaching Residues from Zinc Electrolysis", Erzmetall, May 1976, pp. 224-229, (English language abstract).
Shoemaker et al, "Recovery of Gold and Silver from Ores", paper to International Precious Metals Institute, 10/23/80.
Siderov, "Intensification of Zinc Pulp Settling and Solution Clarifying Through the Use of Flocculants", Yearbook of the Institute of Non-Ferrous Metallurgy, 1978, pp. 22-37, English language abstract only.
Habashi, "Pressure Hydrometallurgy: Key to Better and Nonpolluting Processes"; E/MJ, pp. 96-100, (2/71) and 88-94, (5/71).
Brison Robert J.
Elmore Carl L.
Sherman Michael I.
Doll John
Kamyr Inc.
Stoll Robert L.
LandOfFree
Leaching and washing a flocculated slurry having a fiber content does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Leaching and washing a flocculated slurry having a fiber content, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Leaching and washing a flocculated slurry having a fiber content will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-516301