Use of substituted phenols to inhibit polymer formation during t

Details Use of substituted phenols to inhibit polymer formation during t Use of substituted phenols to inhibit polymer formation during t

1996-09-23

2000-02-15

Lipman, Bernard

Organic compounds -- part of the class 532-570 series

Organic compounds

Nitriles

558306, 558462, 558466, 526 82, 526212, 526341, C07C25500

Patent

active

060255153

ABSTRACT:
The present invention provides substituted phenols which are effective to inhibit polymer formation during the manufacture of acrylonitrile. Preferred substituted phenols are (a) hindered phenols, nonhindered phenols, and partially hindered phenols, or (b) combinations of hindered phenols with nonhindered or partially hindered phenols. A most preferred substituted phenol is p-nitrosophenol. In a preferred embodiment, the substituted phenols (with the exception of p-nitrosophenol) are combined with hydrogen transfer agents.

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