Specialized metallurgical processes – compositions for use therei – Processes – Free metal or alloy reductant contains magnesium
Patent
1980-12-29
1982-04-20
Hearn, Brian E.
Specialized metallurgical processes, compositions for use therei
Processes
Free metal or alloy reductant contains magnesium
75118R, 75118P, 266170, 21049701, 210503, 210504, 428283, C22B 1104
Patent
active
043257321
ABSTRACT:
A cartridge housing (12) having a liquid inlet (14) at one end and an outlet (16) at the opposite end carries in an intermediate volume a spiral rolled exchange mass (18) of flexible, resilient, fibrous material forming a matrix that is self-supporting and non-reactive with the type of solutions with which the cartridge is intended to be used. Within the exchange mass is carried a dispersed array of finely divided particles of replacement metal (19), adhesively attached to the fibers. At each end of the cartridge adjacent to the inlet and outlet is a cavity (20) communicating with a spiral end (38) of the exchange mass, and the inlet cavity (20) houses an inlet nipple (26) that has a discharge opening (30) facing generally away from the spiral end face (38) of the mass. As flow through the mass produces precipitated precious metal, the mass is able to flex and thereby avoid clogging. Fiberglass is the preferred material for the exchange matrix. For some solutions a filter mass (21) is mounted in the same cartridge housing downstream of the exchange mass (18) to filter out selected products in solution.
REFERENCES:
patent: 1617353 (1927-02-01), Snelling
patent: 2068263 (1937-01-01), Burhaus
patent: 2214765 (1940-09-01), Holzwarth
patent: 2905323 (1959-09-01), Megesi
patent: 3261473 (1966-07-01), Riede
patent: 3327859 (1967-06-01), Pall
patent: 4201827 (1980-05-01), Heitkamp
patent: 4213600 (1980-07-01), Thompson
patent: 4227681 (1980-10-01), Golben
patent: 4250172 (1981-02-01), Mutzenberg
patent: 4276171 (1981-06-01), Jackson
patent: 4284500 (1981-08-01), Keck
Hearn Brian E.
Lewis, Jr. Ancel W.
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