Method for controlling silica/silicate deposition in aqueous sys

Details Method for controlling silica/silicate deposition in aqueous sys Method for controlling silica/silicate deposition in aqueous sys

1990-07-02

1992-01-07

Wyse, Thomas

Liquid purification or separation

Processes

Preventing, decreasing, or delaying precipitation,...

210701, 252181, C02F 514

Patent

active

050788795

ABSTRACT:
A method for controlling the formation of silica/silicate deposits in aqueous systems by adding an effective amount, preferably at least 0.1 ppm, of 2-phosphonobutane tricarboxylic acid-1,2,4 and, optionally, an anionic polymer, preferably a carboxylic/sulfonic polymer, or salts thereof to the aqueous system being treated. Borate or molybdate ion sources may also be added.

REFERENCES:
patent: 3923876 (1975-12-01), Heins et al.
patent: 3959168 (1976-05-01), Germscheid et al.
patent: 4631131 (1986-12-01), Cuisia et al.
patent: 4659481 (1987-04-01), Chen
patent: 4663053 (1987-05-01), Geiger
patent: 4784774 (1988-11-01), Amjad et al.
patent: 4874527 (1989-10-01), Gill
patent: 4913823 (1990-04-01), Lipinski et al.

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