Title:
【発明の名称】水溶液中の多価カチオン濃度を低下させる方法
Document Type and Number:
Japanese Patent JPH10505275
Kind Code:
A
Abstract:
PCT No. PCT/FR95/01063 Sec. 371 Date May 5, 1997 Sec. 102(e) Date May 5, 1997 PCT Filed Aug. 8, 1995 PCT Pub. No. WO96/06677 PCT Pub. Date Mar. 7, 1996The process consists in passing the liquid to be purified and a superabsorbent, preferably of polyacrylic type, through a column, the upward speed of the liquid being chosen such that, in the column, the superabsorbent which is merely swollen is in a stationary dynamics regime, whereas the superabsorbent laden with polyvalent ions settles at the bottom of the column. Application to the treatment of the aqueous rinses of articles which have undergone a nickel-plating treatment.
Inventors:
Biver, Claudine
Cuelle, Jean-Pierre
François, Delmas
Francia, Garcia
Cuelle, Jean-Pierre
François, Delmas
Francia, Garcia
Application Number:
JP50852696A
Publication Date:
May 26, 1998
Filing Date:
August 08, 1995
Export Citation:
Assignee:
Elf Atochem Society Anonymous
International Classes:
C02F1/28; B01J20/26; B01J47/10; C23C18/16; C25D21/22; (IPC1-7): C02F1/28; B01J20/26; C02F1/28; C25D21/22
Attorney, Agent or Firm:
Takashi Koshiba (1 person outside)