Process of inhibiting oxalate scale formation

Details Process of inhibiting oxalate scale formation Process of inhibiting oxalate scale formation

1994-06-10

1996-02-13

Hruskoci, Peter A.

Liquid purification or separation

Processes

Preventing, decreasing, or delaying precipitation,...

162 48, 162 72, 162199, 252180, C02F 514

Patent

active

054909422

ABSTRACT:
A process of inhibiting oxalate scale formation in aqueous systems is disclosed. A preferred class of scale inhibitors is represented by polyamino hexamethylene phosphonates. These phosphonate inhibitors can be used in levels of from 0.05 ppm to 300 ppm (of the aqueous solution) at pH in the near neutral to preferably alkaline medium.

REFERENCES:
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patent: 4575425 (1984-12-01), Boffardi et al.
patent: 4804476 (1989-02-01), Sinkovitz et al.
patent: 4872995 (1989-10-01), Chen et al.
patent: 5261491 (1993-11-01), Stewart et al.
patent: 5338477 (1994-08-01), Chen et al.

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