Scale control in metal mining circuits using polyether polyamino

Details Scale control in metal mining circuits using polyether polyamino Scale control in metal mining circuits using polyether polyamino

1994-11-02

1995-10-03

Hruskoci, Peter A.

Liquid purification or separation

Processes

Preventing, decreasing, or delaying precipitation,...

210701, 252180, C02F 514

Patent

active

054549540

ABSTRACT:
A composition useful as a deposit control agent to control the formation, deposition and adherence of scale in the process of extracting precious metals from an ore comprising (I) an aqueous slurry of a mining circuit having the ore, and (II) from about 5 to 500 ppm, based on the total weight of (I), of (a) from about 50 to 100 weight percent, based on the weight of (II), of a polyether polyamino methylene phosphonate, and (b) from about 0.1 to 50 weight percent, based on the weight of (II), of a polymer. A method for inhibiting calcium scale in one or more aqueous systems of a mining circuit employing this composition is also provided.

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patent: 4931189 (1990-06-01), Dhawan et al.
patent: 4933090 (1990-06-01), Gill et al.
patent: 5262061 (1993-11-01), Gill et al.
patent: 5300231 (1994-04-01), Cha

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