Methacrylic acid separation

Details Methacrylic acid separation Methacrylic acid separation

1983-12-09

1985-11-19

Schor, Kenneth M.

Distillation: processes, separatory

Distilling to separate or remove only water

From organic compound

203 43, 203 73, 203 80, 203 87, 562600, B01D 336, B01D 1104

Patent

active

045540543

ABSTRACT:
A process to recover acrylic acid or methacrylic acid by using a split quench process which allows acrylic acid or methacrylic acid to be recovered from the resulting aqueous solutions by a combination of solvent extraction and azeotropic dehydration that minimizes the amount of solvent required.

REFERENCES:
patent: 3344178 (1967-09-01), Brown et al.
patent: 3405172 (1968-08-01), Brown et al.
patent: 3414485 (1968-12-01), Speed
patent: 3493471 (1970-02-01), Bashaw
patent: 3666632 (1972-05-01), Honda et al.
patent: 3798264 (1974-03-01), Kubota et al.
patent: 3809645 (1974-05-01), Matsuzawa et al.
patent: 4142058 (1979-02-01), Matsumara et al.
patent: 4147721 (1979-04-01), Leacock
patent: 4234519 (1980-11-01), Yeoman et al.

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