Method for purifying lactams

Details Method for purifying lactams Method for purifying lactams

1974-09-20

1976-06-01

Trousof, Natalie

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

26029386, 2603265FN, 23252R, C07D20114

Patent

active

039608468

ABSTRACT:
The instant invention relates to a method for purifying lactams wherein the lactam to be purified is contacted in the fused state with inorganic adsorption agents.
The said method comprises contacting the lactam to be purified in the fused state with an inorganic adsorbent, then separating the lactam from the adsorbent and regenerating said adsorbent if desired, wherein said adsorbent is impregnated with at least one impregnation compound selected from the group consisting of an acid and the alkali metal salts which are thermally stable and exert no action on the lactam at temperatures lower tha 250.degree.C.

REFERENCES:
patent: 3154540 (1964-10-01), Beer et al.

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