Sulfur-containing lignins as magnesium sulfite tri-hydrate dispe

Liquid purification or separation – Processes – Preventing – decreasing – or delaying precipitation,...

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252180, C02F 510

Patent

active

043269621

ABSTRACT:
The present invention relates to a method for treating an aqueous medium containing magnesium sulfite tri-hydrate under precipitating conditions which method comprises adding to the medium an effective amount for the purpose of a sulfur-containing lignin.

REFERENCES:
patent: 3766077 (1973-10-01), Hwa et al.
patent: 3801699 (1974-04-01), Arnold
patent: 3829388 (1974-08-01), Lange et al.
patent: 3849328 (1974-11-01), Schievelbein et al.
patent: 3880620 (1975-04-01), Lange et al.
patent: 3989810 (1976-11-01), Toyama et al.

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