Process for removal of lead and oil contaminants from machining

Details Process for removal of lead and oil contaminants from machining Process for removal of lead and oil contaminants from machining

1995-10-03

1996-05-28

Spear, Frank

Liquid purification or separation

Processes

Liquid/liquid solvent or colloidal extraction or diffusing...

210651, 2101952, B01D 6116

Patent

active

055208150

ABSTRACT:
The process for removal of contaminants from coolants involves using an inorganic hydrophilic membrane, such as a ceramic membrane with varying pore sizes, to remove lead particulates, including soluble lead that is converted to insoluble lead precipitates, and oil from machining coolant solutions. The treated coolant with the lead substantially removed is then recycled back to the coolant tank that is used for machining lead alloy parts.

REFERENCES:
patent: 4929351 (1990-05-01), Sanborn
Rober Noyes, Pollution Prevention Technology Handbook, pp. 25-26, 1993.
R. W. Peters, Y. Ku, "Separation of Heavy Metals and Other Trace Contaminants", AIChE Symposium Series, vol. 81, 1985, pp. 9-27.

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