Preparation of caprolactam

Details Preparation of caprolactam Preparation of caprolactam

1980-03-13

1981-05-19

Bond, Robert T.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

C07D20104

Patent

active

042684404

ABSTRACT:
A process for the preparation of caprolactam wherein, in a first stage, cyclohexanone-oxime is vaporized, in the presence of inert gases, by bringing it into contact with a fluidized bed of inert solid particles at from 150.degree. to 250.degree. C., and the mixture of cyclohexanone-oxime vapor and inert gases is passed into a second stage, where the cyclohexanone-oxime is rearranged to caprolactam at from 230.degree. to 450.degree. C. over a supported catalyst, containing boron trioxide, in a fluidized bed.

REFERENCES:
patent: 3154539 (1964-10-01), Irnich
patent: 3210338 (1965-10-01), Huber et al.
patent: 3350393 (1967-10-01), Petri et al.
patent: 3586668 (1971-06-01), Immel et al.
patent: 4137263 (1979-01-01), Immel et al.

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