Title:
SYSTEM AND METHOD FOR RECOVERING ELECTRODEPOSITION COATING MATERIAL
Document Type and Number:
WIPO Patent Application WO/2016/103732
Kind Code:
A1
Abstract:
[Problem] To provide a system and method for recovering an electrodeposition coating material, whereby a coating material recovery rate and the quality of electrodeposition coating are enhanced. [Solution] The present invention is provided with: an electrodeposition tank (10); rinse tanks (11, 12, 13); a first filtration membrane (16) for supplying filtrate and concentrate from filtration of an electrodeposition solution in the electrodeposition tank (10) to a final-stage rinse tank (13) and the electrodeposition tank (10), the first filtration membrane (16) comprising an ultrafiltration membrane or a microfiltration membrane; a supply system for supplying either the electrodeposition solution or water after rinsing in the rinse tanks (11, 12, 13) with ultrafiltered or microfiltered filtrate water; a second filtration membrane (18) comprising a reverse osmosis membrane for supplying the filtrate and concentrate, obtained by filtration of the filtered water supplied from the supply system, to the final-stage rinse tank (13) and the electrodeposition tank (10), and to any of the rinse tanks other than the final-stage rinse tank (13); and a flow rate adjustment unit (30) for adjusting the flow rate to the final-stage rinse tank (13) of each of the filtrate from the first filtration membrane (16) and the filtrate from the second filtration membrane (18).
Inventors:
ARIMORI YOSHIRO (JP)
KANEKO TOSHIAKI (JP)
KANEKO TOSHIAKI (JP)
Application Number:
PCT/JP2015/006485
Publication Date:
June 30, 2016
Filing Date:
December 25, 2015
Export Citation:
Assignee:
ASAHI CHEMICAL IND (JP)
International Classes:
C25D13/24; C25D13/00
Foreign References:
| JP2011099158A | 2011-05-19 | |||
| JPH07224397A | 1995-08-22 | |||
| JPS62177196A | 1987-08-04 | |||
| JP2004149899A | 2004-05-27 | |||
| JP2003105594A | 2003-04-09 | |||
| JPS54100965U | 1979-07-16 |
Attorney, Agent or Firm:
YANAGIDA, Masashi et al. (JP)
Seiji Yanagida (JP)
Seiji Yanagida (JP)
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