Treating method of preventing putrefaction and emission of ranci

Details Treating method of preventing putrefaction and emission of ranci Treating method of preventing putrefaction and emission of ranci

1989-02-15

1990-02-20

Sever, Frank

Liquid purification or separation

Processes

Chemical treatment

210501, C02F 168

Patent

active

049024329

ABSTRACT:
A treating method of preventing the putrefaction and emission of rancidity of water-contained cutting or grinding oil by placing in the oil a treating bag member wherein solids comprised of water-soluble glass composition containing Ag.sup.30 ion in the composition thereof are wrapped in water-permeable fiber cloth. The method makes it possible to suppress the development of microbes forming which cause the putrefaction and rancidity of oil by the action of Ag.sup.30 ion so as to prolong the service period of the oil by a substantial degree and also to stabilize the effect by making Ag.sup.30 ion flow out in generally constant relation with lapse of time.

REFERENCES:
patent: 4095029 (1978-06-01), Fields
patent: 4602011 (1986-07-01), West et al.
patent: 4766113 (1988-08-01), West et al.

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