Method for removal of polymerization inhibitor

Details Method for removal of polymerization inhibitor Method for removal of polymerization inhibitor

1977-07-21

1979-03-13

Bernstein, Hiram H.

Distillation: processes, separatory

Adding material to distilland except water or steam per se

Organic compound

B01D 334

Patent

active

041441370

ABSTRACT:
The removal of the polymerization inhibitor p benzoquinone from acrylic and methacrylic monomers is effectuated by adding to the inhibited monomers either prior to distillation or during distillation in a distillation zone, sufficient amounts of a monoalkyl substituted hydroquinone, a 2,5-dialkyl substituted hydroquinone or a dihydroxynaphthalene to prevent the benzoquinone from co-distilling with the monomer or to convert the benzoquinone in a distillation zone to a non-volatile compound during the distillation so that the converted benzoquinone returns to the feed flask.

REFERENCES:
patent: 3666794 (1972-05-01), Otsuki et al.
patent: 3674651 (1972-07-01), Otsuki
patent: 3794567 (1974-02-01), Otsuki et al.
patent: 3816267 (1974-06-01), Chuang

Affiliated with

Also associated with

Rating

Method for removal of polymerization inhibitor does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method for removal of polymerization inhibitor, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for removal of polymerization inhibitor will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2370569