Method of reproducing water-soluble cutting agents

Liquid purification or separation – Processes – Ion exchange or selective sorption

Patent

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Details

210689, 210799, B01D 1500

Patent

active

043583806

ABSTRACT:
A method of recycling and purifying water-soluble cutting agents is disclosed. The used water-soluble cutting agent is recycled by filtering through an oil-water separating filter consisting of a porous sheet and an oil-water separating layer composed essentially of a water-insoluble and water absorbable gel layer, which is formed on a surface portion of the porous sheet and is adapted to be contacted with the cutting agent and/or surface portions of the porous sheet serving as flow path.

REFERENCES:
patent: 3494863 (1970-02-01), Greenman

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