Liquid purification or separation – Processes – Ion exchange or selective sorption
Patent
1994-10-11
1996-07-23
Ball, Michael W.
Liquid purification or separation
Processes
Ion exchange or selective sorption
118602, 118603, 148251, 210 961, 210143, 210295, 210266, 210670, 210688, 427345, B01D 1504, B01D 3600, C09D10910, C23C 2286
Patent
active
055386440
ABSTRACT:
An apparatus and method is provided for automated periodic removal of metal ions and contaminants from a chemical bath comprising a latex solution containing charged latex particles and having an acidic pH, used for forming a coating by autodeposition. The system includes a tank containing a chemical bath, an ion exchange column for removing the metal ion contaminants, circulating pump, metal composition sensors, and equipment for regeneration of the ion exchange column. The system particularly includes a filter located at the inlet to the ion exchange column for removing solid particulates, including coagulated latex and debris from the coating solution, while permitting the uncoagulated latex particles to pass through to the ion exchange column.
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Stefan Muller; "Process Control of the Grosshansdorf Waterworks"; Siemens Review, vol. XLV, pp. 17-21, 1978.
Ahmed Bashir M.
Kozak William G.
Ball Michael W.
Henkel Corporation
Jaeschke Wayne C.
Lorin Francis J.
Szoke Ernest G.
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