Methods for purifying and recovering contaminated refrigerants w

Details Methods for purifying and recovering contaminated refrigerants w Methods for purifying and recovering contaminated refrigerants w

1995-10-30

1997-12-16

Siegel, Alan

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

Organic compounds

Halogen containing

570262, C07C 1738

Patent

active

056987501

ABSTRACT:
Refrigerants, such as Freon.RTM. 12 and other potential ozone depleting substances will be in short supply as their production is phased out, and until existing refrigeration equipment is retrofitted to receive more environmentally friendly refrigerants. Existing supplies of such refrigerants when contaminated with other refrigerants especially hydrofluoroalkanes like Freon 22 can form azeotropes, which are not readily separated by conventional distillation methods, are selectively decomposed in-situ by reacting with aqueous solutions of metal hydroxides or other bases. The remaining non-reacted refrigerant-containing composition is readily recycled by separation and recovery methods from the reaction mixture to provide a reusable refrigerant composition virtually free of contaminating refrigerant.

REFERENCES:
patent: 2738371 (1956-03-01), Parmalee
patent: 2999885 (1961-09-01), Heberling
Takao Hayashi, Kogyo Kagaku Zasshi, Oct. 1965, vol. 68, No. 10, 2002.

Affiliated with

Also associated with

Rating

Methods for purifying and recovering contaminated refrigerants w does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Methods for purifying and recovering contaminated refrigerants w, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Methods for purifying and recovering contaminated refrigerants w will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-208168