Reducing residual acrylonitrile in water dispersions of acryloni

Details Reducing residual acrylonitrile in water dispersions of acryloni Reducing residual acrylonitrile in water dispersions of acryloni

1978-11-01

1981-03-10

Anderson, Harold D.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

260 296AN, 260 296AB, 260 296AQ, 260 296MQ, 260 296SQ, 260 297SQ, 260 297PT, 528487, C08L 3320

Patent

active

042553075

ABSTRACT:
Residual acrylonitrile dissolved in acrylonitrile polymers and/or water in which the acrylonitrile polymers are polymerized or processed or from acrylonitirle processes is reduced to non-detectable amounts by adding to the polymer-water or acrylonitrile mixture at least a stoichiometric amount of an alkalisulfite which reacts with and reduces the measurable free acrylonitrile content of such mixtures to non-detectable amounts.

REFERENCES:
patent: 2946761 (1960-07-01), Schuller
patent: 3573235 (1971-03-01), Yamamoto et al.
patent: 3998797 (1976-12-01), Brandli

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