Method of recycling amine saponifiers used in cleaning electroni

Details Method of recycling amine saponifiers used in cleaning electroni Method of recycling amine saponifiers used in cleaning electroni

1993-06-29

1994-06-14

Nessler, Cynthia L.

Liquid purification or separation

Processes

Making an insoluble substance or accreting suspended...

210712, 210908, 210805, 134 40, 134 42, C02F 152, C02F 128

Patent

active

053207580

ABSTRACT:
The aqueous effluent from the wash and/or rinse cycles of a process for cleaning electronic circuit assemblies of rosin flux and other organic residues with an aqueous amine cleaning solution comprises treating the effluent with an alkaline earth metal oxide which reacts with the rosin flux to cause precipitation of an alkaline earth metal rosinate and the retention of free amine in aqueous solution.

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