Heat transfer oil and method for driving a Freon turbine

Details Heat transfer oil and method for driving a Freon turbine Heat transfer oil and method for driving a Freon turbine

1980-03-07

1982-02-02

Willis, Jr., P. E.

Compositions

Heat-exchange, low-freezing or pour point, or high boiling...

Organic components

252 77, 252389A, 252390, 252 499, 252 515R, C09K 504, C10M 320, C10M 338

Patent

active

043138403

ABSTRACT:
Freon stable heat transfer oil comprising polyol ester containing tris-(alkylphenyl) phosphite and benzotriazole ##STR1## or benzotriazole derivative ##STR2## in which R.sub.1 and R.sub.2 each represents a hydrogen atom or an alkyl group. It is desirable to add tris-(alkylphenyl) phosphite or tris-(phenyl) phosphite in an amount in the range between 0.02-5% by weight and to add benzotriazole or its derivative in an amount in the range between 0.02-1% by weight to the heat transfer oil.

REFERENCES:
patent: 3630915 (1971-12-01), Sullivan
patent: 3640873 (1972-02-01), Avery et al.
patent: 3790481 (1974-02-01), Byford et al.
patent: 3914179 (1975-10-01), Byford et al.
patent: 3926823 (1975-12-01), Durr et al.

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