Polymerization inhibitor for vinyl aromatic compounds

Details Polymerization inhibitor for vinyl aromatic compounds Polymerization inhibitor for vinyl aromatic compounds

1979-08-30

1981-06-09

Bascomb, Jr., Wilbur L.

Distillation: apparatus

Apparatus

Systems

203 9, 203 65, 203 82, 203 84, 203 88, 585950, 585806, 585807, B01D 334, C07C 705, C07C 720

Patent

active

042723442

ABSTRACT:
Disclosed is a process for the distillation of readily polymerizable vinyl aromatic compounds and a new polymerization inhibitor therefor. The process comprises subjecting a vinyl aromatic compound to elevated temperatures in a distillation system in the presence of a new polymerization inhibitor comprising 2,6-dinitro-p-cresol. Also disclosed is a distillation method and apparatus for use with this inhibitor.

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patent: 3632482 (1972-01-01), Hoory et al.
patent: 3844903 (1974-10-01), Willersinn
patent: 4033829 (1977-07-01), Higgins
patent: 4191614 (1980-03-01), Watson et al.

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