Process for purifying adiponitrile

Details Process for purifying adiponitrile Process for purifying adiponitrile

1977-12-08

1979-04-03

Brust, Joseph Paul

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

2604652, C07C12126

Patent

active

041477170

ABSTRACT:
Certain basic impurities, e.g., N-heterocyclic amines such as 2-methyl-4-amino-5,6-trimethylene pyrimidine are removed from adiponitrile by contact with solid acidic sorption agents, e.g., weak cation exchange resins before its hydrogenation to hexamethylene diamine to reduce odor and color of products prepared from the diamine.

REFERENCES:
pickert et al., Chemical Engineering, Jul. 29, 1968, pp. 133-142.
Union Carbide bulletin--"A Report on Molecular Sieve Catalysts", 5 pages.
Union Carbide bulletin--"A Report on Molecular Sieve Catalyst SK-500", 8 pages.

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