Method and apparatus for vapor treatment of metals

Details Method and apparatus for vapor treatment of metals Method and apparatus for vapor treatment of metals

1980-05-14

1982-03-30

Caroff, Marc L.

Cleaning and liquid contact with solids

Processes

Including regeneration, purification, recovery or separation...

134 31, 134 40, 134107, 148 63, B08B 500, C23G 502

Patent

active

043222510

ABSTRACT:
A method and apparatus for metal degreasing or metal phosphatizing that utilizes a low boiling point solvent. The apparatus comprises a vessel defining a reservoir of solvent and a zone of solvent vapor above the reservoir, and an external heat pump system having a heat-emitting section and a heat-absorbing section to provide the necessary heating and cooling for the vessel. Intermediate heat transfer fluid loops transmit heat between the vessel and the heat pump, and include reservoirs to inhibit the loss of thermal balance in the heat pump. Coolant fluid is circulated through the solvent reservoir to inhibit solvent evaporation when the apparatus is not being used.

REFERENCES:
patent: 1961867 (1934-06-01), Savage
patent: 3887628 (1975-06-01), Beckers
patent: 3935899 (1976-02-01), Jolly
patent: 4014751 (1977-03-01), McCord
patent: 4029517 (1977-06-01), Rand
patent: 4055196 (1977-10-01), Kearney
patent: 4210461 (1980-07-01), Moree et al.
Waste Heat Management Guide Book-NBS Handbook, vol. 121, "Case Study", Feb. 1977, pp. 121-125.

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