Environmentally safer replacement refrigerant for freon 12-based

Details Environmentally safer replacement refrigerant for freon 12-based Environmentally safer replacement refrigerant for freon 12-based

1997-10-14

1999-08-24

Skane, Christine

Compositions

Vaporization, or expansion, refrigeration or heat or energy...

With lubricants, or warning, stabilizing or anti-corrosion...

252 67, 62 84, 62114, 62468, 62502, C09K 504, C10M10100

Patent

active

059421495

ABSTRACT:
An apparatus and method wherein ozone layer-damaging dichlorodifluoromethane is substituted with a mix of less environmentally damaging refrigerants chlorodifluoroethane and tetrafluoroethane in dichlorodifluoromethane-based air-cooling systems. While less environmentally damaging than dichlorodifluoromethane, the substitute refrigerant has a temperature-pressure relationship similar to that of dichlorodifluoromethane, making the substitute refrigerant suitable for use with dichlorodifluoromethane-based air-cooling systems. The substitute refrigerant can be used alone or in combination with dichlorodifluoromethane. In either event, it is mixed with a relatively small percentage of a hydrophobic lubricating oil which is compatible with both the substitute refrigerant and with dichlorodifluoromethane.

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