Refrigeration – Processes – Evaporation induced by sorption
Patent
1977-01-19
1978-02-07
Pitlick, Harris A.
Refrigeration
Processes
Evaporation induced by sorption
252 68, 252 69, 252389A, 252400A, C09K 504, F25B 1502
Patent
active
040720276
ABSTRACT:
A stabilized heat exchange medium is disclosed including a fluorocarbon, an absorbant and a tribasic phosphite stabilizer. The preferred absorbants are assymetrical furan derivatives containing at least 1 oxygen with a single bond to an adjacent carbon, and is most preferably an alkyl tetrahydrofurfuryl ether. The fluorocarbon contains 1 or 2 carbons, 1 or 2 hydrogens and the remainder chlorine and fluorine. The tribasic phosphites are of the formula (R.sub.1 'O)(R.sub.2 'O)(R.sub.3 'O)P, wherein R.sub.1 ', R.sub.2 ' and R.sub.3 ' are each independently alkyl, alkenyl, phenyl, alkylene phenyl, alkylene alkylphenyl or alkylphenyl.
REFERENCES:
patent: 3459660 (1969-08-01), Shepherd
patent: 3558470 (1971-01-01), Gillespie et al.
patent: 3645886 (1972-02-01), Gillespie et al.
patent: 4005584 (1977-02-01), Li
Berenbaum Morris B.
Eibeck Richard E.
Evans Francis E.
Robinson Martin A.
Allied Chemical Corporation
Doernberg Alan M.
Friedenson Jay P.
Pitlick Harris A.
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