Stabilized heat activated heat exchange absorption pair

US4072027A · kind A · utility

Assignee

• Allied Chemical Corporation · US

Inventors

• Morris B. Berenbaum · Summit, US
• Francis E. Evans · Hamburg, US
• Richard E. Eibeck · Orchard Park, US
• Martin A. Robinson · East Amherst, US

Key dates

• Filing date: Jan 19, 1977
• Grant date: Feb 7, 1978
• Expiry date: Jan 19, 1997

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07F9/141
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

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.