Dehydration of water soluble monomers with liquid carbon dioxide

Details Dehydration of water soluble monomers with liquid carbon dioxide Dehydration of water soluble monomers with liquid carbon dioxide

1979-05-14

1981-03-03

Cintins, Ivars C.

Liquid purification or separation

Processes

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

210642, 2604659, 562600, 203DIG21, B01D 1104, C07C12130, C07C 5142

Patent

active

042539480

ABSTRACT:
Separation of certain water soluble organic monomers such as acrylic acid from an aqueous solution can be accomplished by extraction with carbon dioxide, crystallizing the extract to remove carbon dioxide hydrate, and flashing off the remaining carbon dioxide solvent from the extract.

REFERENCES:
patent: 2029120 (1936-01-01), Schilling et al.
patent: 2744855 (1956-05-01), Arnold
patent: 2922815 (1960-01-01), Faerber
patent: 3133018 (1964-05-01), Watanabe
patent: 3414485 (1968-12-01), Speed
patent: 3692829 (1972-09-01), Sennewald et al.
patent: 3781193 (1973-12-01), Sennewald et al.
"Ternary Systems of Liquid Carbon Dioxide", Alfred W. Francis, Journal of Physical Chemistry 58, 1099 (1954).

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