Hydrogenation catalysts for the preparation of propanediols and

Details Hydrogenation catalysts for the preparation of propanediols and Hydrogenation catalysts for the preparation of propanediols and

1982-02-02

1983-05-31

Evans, Joseph E.

Organic compounds -- part of the class 532-570 series

Organic compounds

Oxygen containing

568630, 568640, 568809, 568814, 568831, 568838, C07C 3120, C07C 3326, C07C 3113, C07C 4126

Patent

active

043862195

ABSTRACT:
Hydrogenation catalysts, which have a specific surface area of from 50 to 150 square meters per gram, solely or partially contain crystals having a spinel structure and copper in the form of copper oxide, and have been obtained by precipitating copper and aluminum in a ratio of from 0.25 to 3 atoms of copper per atom of aluminum from their compounds in the presence of a carbonate at a pH of from 4.5 to 9 and calcining the resulting precipitate at from 300.degree. to 800.degree. C., for the catalytic preparation of propanediols by hydrogenating hydroxypropionaldehydes at not more than 300 bar pressure and from 50.degree. to 200.degree. C., and processes for the preparation of propanediols by the use of such catalysts.
The propanediols obtainable by the process of the invention, in particular 2,2-dimethylpropane-1,3-diol, are valuable starting materials for the preparation of lubricants, plastics, surface coatings and synthetic resins, for example corresponding polyesters.

REFERENCES:
patent: 4181810 (1980-01-01), Immel et al.
patent: 4250337 (1981-02-01), Hausen et al.
patent: 4273939 (1981-06-01), Barnett et al.
patent: 4308176 (1981-12-01), Kristiansen

Affiliated with

Also associated with

Rating

Hydrogenation catalysts for the preparation of propanediols and does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2246538