Title:
APPARATUS FOR PROCESSING ACIDIC TREATMENT LIQUID, METHOD FOR PROCESSING ACIDIC TREATMENT LIQUID, SURFACE TREATMENT SYSTEM AND SURFACE TREATMENT METHOD
Document Type and Number:
WIPO Patent Application WO/2020/090204
Kind Code:
A1
Abstract:
An apparatus 10 for processing an acidic treatment liquid according to the present invention is provided with: a tank 11 which internally has a space; a diaphragm 12 which divides the internal space of the tank 11 into a first chamber S1 and a second chamber S2, and through which metal cations are able to permeate; a first electrode 13 which is provided within the first chamber S1; a second electrode 14 which is provided within the second chamber S2; a power supply 15 which applies a voltage, while using the first electrode 13 and the second electrode 14 respectively as a positive electrode and a negative electrode; a first liquid permeation part 16 which has an acidic treatment liquid containing dichromate ions and metal cations pass into the first chamber S1; and a second liquid permeation part 17 which has an aqueous acid solution pass into the second chamber S2.
More Like This:
| JP2000334400 | CLEANING SYSTEM |
| JP4344256 | Cleaning equipment |
Inventors:
IMASAKA KOJI (JP)
MIKAWA HIROAKI (JP)
KAWASAKI KOHEI (JP)
ISHIGAKI MITSUHIRO (JP)
NAGAI MASAHIKO (JP)
TAJIMA HIDEHIKO (JP)
URESHINO AYAKO (JP)
EGAWA KAORU (JP)
SAKANISHI AKIHIRO (JP)
MIYAZAKI TAISUKE (JP)
MIKAWA HIROAKI (JP)
KAWASAKI KOHEI (JP)
ISHIGAKI MITSUHIRO (JP)
NAGAI MASAHIKO (JP)
TAJIMA HIDEHIKO (JP)
URESHINO AYAKO (JP)
EGAWA KAORU (JP)
SAKANISHI AKIHIRO (JP)
MIYAZAKI TAISUKE (JP)
Application Number:
PCT/JP2019/033350
Publication Date:
May 07, 2020
Filing Date:
August 26, 2019
Export Citation:
Assignee:
MITSUBISHI HEAVY IND LTD (JP)
International Classes:
C23G3/00; B01D61/44; B01D61/46; B01D61/54; B01D65/10; C23C22/86
Foreign References:
| JPS60138079A | 1985-07-22 | |||
| JPS55131199A | 1980-10-11 | |||
| JPH11207347A | 1999-08-03 | |||
| JP2015195376A | 2015-11-05 |
Other References:
KOGA, H. ET. AL.: "Study ob lengthening the life of chromium plating bath : regenerating of chronic acid and removing impurities by electrolytic method using ion-exchange membrane", FUKUOKA INDUSTRIAL TECHNOLOGY CENTER RESEARCH REPORT, pages 21 - 24
Attorney, Agent or Firm:
SEISHIN IP PATENT FIRM, P.C. (JP)
Download PDF: