Recovery of caprolactam from caprolactam-containing distillation

Details Recovery of caprolactam from caprolactam-containing distillation Recovery of caprolactam from caprolactam-containing distillation

1984-08-21

1986-01-07

Michl, Paul R.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

C07D20104

Patent

active

045633088

ABSTRACT:
Process the recovering caprolactam from the residue remaining following the distillation, under reduced pressure, of impure caprolactam obtained by rearrangement of cyclohexanone oxime with sulphuric acid or oleum, by distilling the residue under reduced pressure whereby a caprolactam-containing distillate is obtained; hydrogenating the caprolactam containing distillate in an aqueous medium to obtain a hydrogenation product; and recovering caprolactam from the resulting hydrogenation product.

REFERENCES:
patent: 4017482 (1977-04-01), Gath
patent: 4257950 (1981-03-01), Horn
patent: 4268440 (1981-05-01), Werther
83 Chem. Abs. 98134 h (1975).

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