公开(公告)号：JPS61247999A

公开(公告)日：1986-11-05

申请号：JP8877885

申请日：1985-04-26

Applicant: ASAHI CHEMICAL IND

Inventor： MATSUI TAKAO ,  KAMAYA MASAMI

IPC: C02F1/42 ,  B01J49/00 ,  G21F9/00 ,  G21F9/12

公开(公告)号：JPS61247998A

公开(公告)日：1986-11-05

申请号：JP8877785

申请日：1985-04-26

Applicant: ASAHI CHEMICAL IND

Inventor： MATSUI TAKAO ,  KAMAYA MASAMI

IPC: C02F1/42 ,  B01J49/00 ,  G21F9/00 ,  G21F9/12

公开(公告)号：JPH04284833A

公开(公告)日：1992-10-09

申请号：JP4930291

申请日：1991-03-14

Applicant: ASAHI CHEMICAL IND

Inventor： MATSUI TAKAO

IPC: B01D61/44 ,  B01D61/46 ,  B01F17/00

Abstract: PURPOSE:To remove an inorg. salt from an inorg. salt-containing cationic surfactant solution by electrodialysis using a hydrophilic neutral membrane and an anion exchange membrane. CONSTITUTION:An inorg. salt is removed by electrodialysis using a hydrophilic neutral membrane whose water retention quantity is 0.05-2.0ml/g dry resin and a cation exchange membrane. Stable operation can be performed over a long period of time and a cationic surfactant can be recovered in high recovery rate.