Co-retarding agents for preparing purified brine

Details Co-retarding agents for preparing purified brine Co-retarding agents for preparing purified brine

2005-01-25

2005-01-25

Drodge, Joseph (Department: 1723)

Liquid purification or separation

Processes

Liquid/liquid solvent or colloidal extraction or diffusing...

C210S663000, C210S687000, C210S729000, C210S730000, C210S731000, C423S499400, C423S499500, C205S334000, C023S29500G, C023S30200R

Reexamination Certificate

active

06846417

ABSTRACT:
The invention relates to a process to produce brine of improved purity by dissolving salt that contains a calcium sulfate source in water, in the presence of a retarding agent, while using one or more co-retardants to bind contaminants that could interfere with the retarding agents.

REFERENCES:
patent: 2433601 (1947-12-01), Comstock
patent: 2902418 (1959-09-01), Burns
patent: 2906599 (1959-09-01), Roland
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patent: 6063290 (2000-05-01), Failon et al.
patent: 115 341 (1975-09-01), None
patent: 115 677 (1999-05-01), None
patent: 1 202 339 (2002-05-01), None
Derwent Abstract No. 81644W/50 abstracting DE 115-341.

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