Method for degreasing solid objects

Details Method for degreasing solid objects Method for degreasing solid objects

1993-06-14

1994-03-29

Breneman, R. Bruce

Cleaning and liquid contact with solids

Processes

Oils, grease, tar, or wax removal, by dissolving

134 10, 134 30, 134 26, 134 12, B08B 300, B08B 304, C23G 500

Patent

active

052980820

ABSTRACT:
A degreasing method and system which subjects dirty and oily parts to a bath of relatively impure solvent and thereafter rinsing such parts in relatively pure solvent. The rinsing is performed above the bath so that the relatively pure solvent used as a rinse falls into the bath and recharges it. The relatively pure solvent is continuously obtained by distilling a portion of the solvent from the bath in a closed continuous flow system. The novel solvent used is a mixture of esters of low molecular weight aliphatic carboxylic acid and a normally liquid branched chain alkane.

REFERENCES:
patent: 3460990 (1969-08-01), Barday
patent: 4589926 (1986-05-01), Holmstrand
patent: 4817646 (1989-04-01), Brooks
patent: 5062438 (1991-11-01), Micheletti
John M. Hyde, "New Developments in CIP Practices", Chemical Engineering Progress, Jan. 1985, pp. 39-41.

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