Removal of residual acrylonitrile monomer

Details Removal of residual acrylonitrile monomer Removal of residual acrylonitrile monomer

1980-02-25

1981-07-14

Levin, Stanford M.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

210749, 260 296MP, 260 296MQ, 260 296PT, 2604659, 528487, 528488, 528490, C08F 610, C08F 616, C08F 624, C08F 628

Patent

active

042785820

ABSTRACT:
Concentration of residual acrylonitrile monomer is reduced in acrylonitrile copolymers or water in which acrylonitrile is polymerized to a level of less than about 100 ppm by reacting therewith ammonia or ammonium hydroxide, thioalcohols, hydrogen sulfide and its salts, and alkali metal and alkaline earth metal carbonates, phosphates, and silicates.

REFERENCES:
patent: 2653966 (1953-09-01), Taylor et al.
patent: 3980600 (1976-09-01), Coffey
patent: 3998797 (1976-12-01), Brandli et al.

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