Metallurgical apparatus – With means treating or handling gases exhausted by treating... – By condensing and collecting a volatile constituent
Patent
1988-06-15
1990-04-03
Focarino, Margaret A.
Metallurgical apparatus
With means treating or handling gases exhausted by treating...
By condensing and collecting a volatile constituent
75 81, 75 83, 209 10, 209 42, 209184, 209193, 209205, 266169, C22B 1110, C22B 1112
Patent
active
049134078
ABSTRACT:
A precious metal recovery system utilizing an amalgamation process which results in substantially complete recovery both of the precious metal sought and of the mercury utilized in the process. Mercury has undesirable health and environmental characteristics and the system of the invention assures its substantial containment. In the operation of the system, ore is classified and sorted out into a plurality of bins or holds containing ore having a substantially uniform particle size. The ore is then delivered, bin by bin, beginning with the smallest particle size, to apparatus which assures substantially complete amalgamation of all of the precious metal present in the ore. Thereafter, a resulting slurry of water and tails is first removed from the amalgamation apparatus and any residual mercury removed before its return to the environment. At the end of a period of operation of the amalgamation apparatus, the mercury and precious metal amalgam mixture together with any residual tails are drawn off and subjected to three separation operations. First, the mercury and precious metal amalgam mixture is separated from any residual tails. Next, the mercury is separated from the precious metal amalgam. Finally, the mercury is removed from the amalgam thereby resulting in a reasonably pure form of the precious metal.
REFERENCES:
patent: 224368 (1880-02-01), Wilkins
patent: 611506 (1898-09-01), Plant
patent: 937356 (1909-10-01), Bennett
patent: 1052157 (1913-02-01), Luckenbach
patent: 1986778 (1935-01-01), Hinkley
patent: 2086322 (1937-07-01), Ulrich
patent: 2190632 (1940-02-01), Culmer
patent: 4032122 (1977-06-01), Anders
"Elements of Ore Dressing", Taggart, pp. 334-336, 1951.
Advertisement entitled "Micron Gold Amalgamation", Popular Mining Magazine, frontis page and pp. 29-32, Feb. 1984.
Signed statement dated Jul. 13, 1987 to the effect that Alvin C. Hurd and not William A. McDaniel is the inventor and builder of the HB 1500 MGA and HB 2000 HGA Amalgamators.
Brazilian Application-filed Aug. 6, 1987, No. PI 8704020, at the Brazilian Patent Office, this application is still pending; translation herewith provided.
Focarino Margaret A.
International Mineral Resources, Inc.
Wacyra Edward M.
LandOfFree
Precious metal recovery system does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Precious metal recovery system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Precious metal recovery system will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1352379