Liquid purification or separation – With alarm – indicator – register – recorder – signal or... – Responsive to fluid flow
Patent
1976-12-02
1978-03-14
Adee, John
Liquid purification or separation
With alarm, indicator, register, recorder, signal or...
Responsive to fluid flow
210 24, B01D 1508
Patent
active
040790002
ABSTRACT:
A process for purifying an acrylic fiber solvent solution which comprises (1) feeding an acrylic fiber solvent containing impurities or an aqueous solution thereof to a packed layer of a polymer consisting of one or more kinds of ester type monomers containing at least one polymerizable double bond and at least one ethylene oxide unit per molecule or a polymer consisting of such monomer(s) and one or more kinds of monomers containing at least one polymerizable double bond for one molecule, to cause said layer to catch the impurities and fiber solvent, (2) passing an eluent through said packed layer thus eluting the impurities together with the eluent, and (3) passing a further amount of the eluent through the packed layer thereby separating an eluate containing the fiber solvent.
REFERENCES:
patent: 2911362 (1959-11-01), Wheaton
patent: 3134814 (1964-05-01), Sargent et al.
patent: 3275548 (1966-09-01), Walters
patent: 3808125 (1974-04-01), Good
patent: 3859209 (1975-01-01), Jahnsen et al.
patent: 3931123 (1976-01-01), Vasik et al.
Nakajima Shigeru
Ozaki Masahiko
Adee John
Japan Exlan Company Limited
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