Process for the preparation of a 2-pyrrolidone

Details Process for the preparation of a 2-pyrrolidone Process for the preparation of a 2-pyrrolidone

1980-12-22

1982-04-20

Lee, Mary C.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

252412, C07D207267

Patent

active

043258727

ABSTRACT:
An improved method for hydrogenating succinonitrile, optionally carrying substituents, to form 2-pyrrolidones, in the liquid phase in the presence of ammonia, using a fixed-bed catalyst wherein the catalyst may be regenerated by successively passing liquid ammonia at 75.degree.-130.degree. C., then hydrogen at 130.degree.-350.degree. C., and then liquid ammonia again at 75.degree.-130.degree. C. over the catalyst.

REFERENCES:
patent: 3095423 (1963-06-01), Copenhaven et al.
patent: 3135699 (1964-06-01), Herzog et al.
patent: 3198808 (1965-08-01), Himmele et al.
patent: 3644402 (1972-02-01), Takagi et al.
patent: 3966763 (1976-06-01), Greene
patent: 3988259 (1976-10-01), Ray
patent: 4036836 (1977-07-01), Greene
patent: 4042599 (1977-08-01), Greene
patent: 4123438 (1978-10-01), Geurts et al.
patent: 4181662 (1980-01-01), Sweeney
patent: 4216151 (1980-08-01), Goettsch et al.

Affiliated with

Also associated with

Rating

Process for the preparation of a 2-pyrrolidone does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Process for the preparation of a 2-pyrrolidone, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for the preparation of a 2-pyrrolidone will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1262942