Reactive resins useful for precious metal recovery

Details Reactive resins useful for precious metal recovery Reactive resins useful for precious metal recovery

1986-11-17

1988-07-19

Stoll, Robert L.

Chemistry of inorganic compounds

Treating mixture to obtain metal containing compound

Group ib metal

423DIG14, 75101BE, 75118R, 210673, 210684, 210688, C01G 700

Patent

active

047584130

ABSTRACT:
An improved process for the recovery of precious metal values is disclosed. By this process precious metals in the form of anionic complexes are contacted with a weak-base anion exchange resin capable of complexing with the anionic complex. Such weak-base anion exchange resins contain weak-base functionalities derived from linear or cyclic polyaminoalkylene amines which have more than 1 amine moiety and at least 3 carbon atoms in a 1,X-alkylene moiety or moieties separating at least 1 amine moiety from a second amine moiety (i.e., X is an integer greater than 2).

REFERENCES:
patent: 2839389 (1958-06-01), Kember et al.
Aueston, et al "Recovery of Gold, Silver and Nickel from Alkaline Cyanide Solutions by Means of Weak-Base Ion-Exchange Resins" J. of Appl. Chem., Feb. 8, 1958, pp. 77-86.

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