Process for the recovery of pure .epsilon.-caprolactam from an a

Details Process for the recovery of pure .epsilon.-caprolactam from an a Process for the recovery of pure .epsilon.-caprolactam from an a

1976-04-29

1977-07-19

Jiles, Henry R.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

C07D20116

Patent

active

040368300

ABSTRACT:
A process for recovering substantially pure .epsilon.-caprolactam from a contaminated solution thereof is disclosed by concentrating, if needed, the caprolactam content of the solution to about 60-75 weight percent then extracting the concentrated solution with an organic solvent such as benzene or the like, then recovering the resulting caprolactam-laden organic solution.

REFERENCES:
patent: 2221369 (1940-11-01), Cass
patent: 2692878 (1954-10-01), Kahr
patent: 2758991 (1956-08-01), Kretzers et al.
patent: 2993889 (1961-07-01), Muytjens et al.
patent: 3850910 (1974-11-01), Goettsch et al.
patent: 3907781 (1975-09-01), DE Rooij et al.
patent: 3937789 (1976-02-01), Donati et al.

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