Catalytic equilibration to improve the relative yield of selecte

Details Catalytic equilibration to improve the relative yield of selecte Catalytic equilibration to improve the relative yield of selecte

1991-02-28

1995-04-11

Siegel, Alan

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

Organic compounds

Halogen containing

570163, C07C 1908

Patent

active

054060095

ABSTRACT:
Gas phase and liquid phase processes are disclosed which use interconversion of CF.sub.3 CHFCl and CF.sub.2 HCF.sub.2 Cl in contact with catalyst consisting essentially of halided aluminum oxide and/or aluminum halide at elevated temperatures to increase the mole ratio of one of said compounds in a composition relative to the other. Also disclosed is use of said interconversion along with hydrogenolysis in processes for producing mixtures of CF.sub.3 CH.sub.2 F and CF.sub.2 HCF.sub.2 H from certain compositions comprising CF.sub.2 HCF.sub.2 Cl such that the mole ratio of CF.sub.3 CH.sub.2 F to CF.sub.2 HCF.sub.2 H in the product mixtures produced from said compositions may be increased or decreased.

REFERENCES:
patent: 2478201 (1947-01-01), Miller et al.
patent: 2494064 (1947-03-01), Simons et al.
patent: 2598411 (1952-05-01), Miller et al.
patent: 2920112 (1960-01-01), Larsen
patent: 3087976 (1963-04-01), Hauptschein et al.
patent: 3398202 (1968-08-01), Foulletier
patent: 3787331 (1974-01-01), Gropelli et al.
patent: 4155941 (1979-05-01), Nychka et al.
patent: 4192822 (1980-03-01), Sweeney et al.
patent: 4745237 (1988-05-01), Ballard et al.
patent: 4748284 (1988-05-01), Gozzo et al.
patent: 4766260 (1988-08-01), Manzer et al.
patent: 4843181 (1989-06-01), Gumprecht et al.
patent: 4873381 (1989-10-01), Kellner et al.
patent: 4902838 (1990-02-01), Manzer et al.
patent: 4925993 (1990-05-01), Zawalski
patent: 4935558 (1990-06-01), Krespan et al.
patent: 4950815 (1990-08-01), Moore et al.
patent: 5068473 (1991-11-01), Kellner et al.
Miller et al., JACS 72, Rearrangement of Chlorofluorocarbons by Aluminum Chloride (Feb. 1950) pp. 705-707.
Chemical Abstracts, vol. 113, No. 3, Jul. 16, 1990, Morikawa , p. 584, Abstract No. 23097c.

Affiliated with

Also associated with

Rating

Catalytic equilibration to improve the relative yield of selecte does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Catalytic equilibration to improve the relative yield of selecte, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Catalytic equilibration to improve the relative yield of selecte will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1539801