Liquid purification or separation – Processes – Preventing – decreasing – or delaying precipitation,...
Patent
1992-08-05
1994-04-05
Hruskoci, Peter A.
Liquid purification or separation
Processes
Preventing, decreasing, or delaying precipitation,...
210701, 252180, C02F 514
Patent
active
053002318
ABSTRACT:
Polyether polyamino methylene phosphonates, when used in combination with hydroxyphosphonoacetic acid (HPA) or amino tris methylene phosphonate (AMP), and added to various industrial water systems in concentrations between 0.1 mg/L and 50 mg/L, control silica/silicate deposition. In particular, this stabilization can be achieved under severe conditions which include elevated pH, high dissolved solids content, and high saturation levels of calcium carbonate.
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Calgon Corporation
Cochenour Craig G.
Hruskoci Peter A.
Kline Michael J.
Mitchell William C.
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