Isobutanol synthesis method

Details Isobutanol synthesis method Isobutanol synthesis method

1995-12-08

1998-09-22

Geist, Gary

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

Organic compounds

Oxygen containing

568905, 502307, 502326, C07C 2934

Patent

active

058116028

ABSTRACT:
The invention relates to a method for conversion of methanol, ethanol alone or in combination with n-propanol to the corresponding isoalcohols by contacting a catalyst of a noble metal supported on at least a first phase of mixed oxide crystallites containing from about 60 to about 74 atomic % (on a metals basis only) zirconium, from about 21 to about 31 atomic % manganese and from about 5 to about 9 atomic % zinc, and less than about 1 atomic % alkali, a second phase of zirconium-doped hetaerolite particles containing from about 65 to about 69 atomic % manganese, from about 31 to about 35 atomic % zinc, from about 0.5 to about 5 atomic % zirconium, and optionally a trace atomic % of alkali, and a third phase containing from about 29 to about 55 atomic % manganese, from about 13 to about 55 atomic % zinc and from about 13 to about 35 atomic % zirconium, wherein the first phase mixed oxide crystallites have a zirconium oxide-like structure have a particle size of at least about 40 .ANG. to about 100 .ANG., the second phase particles have a particle size of about 200 .ANG. to greater than about 2000 .ANG., and the third phase has a particle size of about 1000 .ANG. to greater than 4000 .ANG., with reactant stream containing a light olefin selected from the group consisting of ethylene, propylene and mixtures thereof and synthetic gas and optionally methanol to produce a product stream containing the corresponding isoalcohols. Isobutanol in particular may be produced when the feedstream contains methanol in combination with one or more of ethanol, n-propanol, ethylene and propylene.

REFERENCES:
patent: 3972952 (1976-08-01), Clark et al.
patent: 4237063 (1980-12-01), Bell et al.
patent: 4567160 (1986-01-01), Nay et al.
patent: 4576968 (1986-03-01), Nay et al.
patent: 4659742 (1987-04-01), Courty et al.
patent: 4675306 (1987-06-01), Mazanec et al.
patent: 4780481 (1988-10-01), Courty et al.
patent: 5159125 (1992-10-01), Hagen
Keim et al. Catalysis Letters 3 (1989) 59-64. "Isobutanol from Synthesis Gas."

Affiliated with

Also associated with

Rating

Isobutanol synthesis method does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Isobutanol synthesis method, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Isobutanol synthesis method will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1623078