Means of controlling precipitation of Na.sub.2 SO.sub.4 from sol

Details Means of controlling precipitation of Na.sub.2 SO.sub.4 from sol Means of controlling precipitation of Na.sub.2 SO.sub.4 from sol

1986-08-11

1987-06-30

Hruskoci, Peter

Liquid purification or separation

Processes

Preventing, decreasing, or delaying precipitation,...

210750, 210757, 25218828, 422 12, 422 19, C02F 508

Patent

active

046769102

ABSTRACT:
Concentrated solutions of sodium sulfite and related compounds can be inhibited against sodium sulfate precipitation by substituting potassium for a portion of the sodium contained in such compounds. A typical concentrate would contain a water-soluble sulfite mixture comprising sodium and potassium sulfite with the sodium to potassium ratio ranging between 1:1 to 15:1.

REFERENCES:
patent: 2476598 (1949-07-01), Hall
patent: 2825651 (1958-03-01), Loo et al.
patent: 3625888 (1971-11-01), Redmore et al.
patent: 3899293 (1975-08-01), Bush
patent: 4231894 (1984-11-01), Lavin et al.

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