Process for recovery of methacrylic acid

Details Process for recovery of methacrylic acid Process for recovery of methacrylic acid

1984-06-25

1986-07-08

Bashore, S. Leon

Distillation: processes, separatory

Distilling to separate or remove only water

From organic compound

203 52, 203 68, 203 91, 203 99, 203DIG19, 203DIG21, 562600, 562608, B01D 336

Patent

active

045991448

ABSTRACT:
Process is disclosed for treating the reaction product of propionic acid and formaldehyde to recover methacrylic acid from an aqueous effluent wherein said effluent contains methacrylic acid, unreacted formaldehyde, unreacted propionic acid, water and by-products.

REFERENCES:
patent: 3433831 (1969-03-01), Yomiyama et al.
patent: 3840587 (1974-10-01), Pearson
patent: 3844903 (1974-10-01), Willersinn et al.
patent: 3926744 (1975-12-01), Noll et al.
patent: 4039428 (1977-08-01), Wei
patent: 4040913 (1977-08-01), Clovis et al.
patent: 4085143 (1978-04-01), Holmes
patent: 4142058 (1979-02-01), Matsumura et al.
patent: 4147721 (1979-04-01), Leacock
patent: 4166774 (1979-09-01), Wagner

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