公开(公告)号：US3787339A

公开(公告)日：1974-01-22

申请号：US3787339D

申请日：1972-09-07

Applicant: IONICS

Inventor： HODGDON R ,  ROACH E

IPC: B01J49/00 ,  B01D15/06 ,  C02B1/76

CPC classification number: B01J49/57

Abstract: A process for treating fouled anion exchange resins with a stabilized chlorine dioxide solution for the purpose of regenerating the same for reuse. The process is especially useful for treating anion exchange membranes which have become fouled when employed in the electrodialysis of solutions containing large organic molecules.

Abstract translation: 用稳定的二氧化氯溶液处理污垢阴离子交换树脂的方法，用于将其再生用于再利用。 该方法对于处理当用于含有大有机分子的溶液的电渗析中时已被弄脏的阴离子交换膜特别有用。

公开(公告)号：US3749655A

公开(公告)日：1973-07-31

申请号：US3749655D

申请日：1971-06-21

Applicant: IONICS

Inventor： HODGDON R

IPC: B01D67/00 ,  B01D69/02 ,  C08J5/22 ,  C25B13/04 ,  H01M2/16 ,  B01D13/02

CPC classification number: B01D67/0006 ,  B01D61/46 ,  B01D2321/00 ,  C08J5/2243 ,  C08J2353/02 ,  H01M2/1653

Abstract: THIS INVENTION IS DIRECTED TO ELECTRODIALYSIS EQUIPMENT PARTICULARLY TO COMPONENTS COMPRISING THE ION EXCHANGE MEMBRANES. THESE MEMBRANES ARE FABRICATED WITH A POLYMERIC MACROPOROUS SURFACE AS CONTRASTED TO THE PRIOR ART MICROPOROUS "GEL" TYPE MEMBRANES. THE MACROPOROUS MEMBRANE SURFACE OR LAYER LESSENS THE TENDENCY FOR MEMBRANES ESPECIALLY THE ANION SELECTIVE TYPE TO FOUL WHEN EMPLOYED IN THE ELECTRODIALYSIS OF SOLUTIONS CONTAINING FOULING CONSTITUENTS. THE MACROPOROUS MEMBRANES ARE OBTAINING BY POLYMERIZING THE LIQUID MONOMERS IN THE PRESENCE OF A NON-POLYMERIZABLE SOLVENT PAIR OF DILUENT COMPRISED OF BOTH A "GOOD" AND A "POOR" SOLVENT, SAID SOLVENT CHARACTERIZED WITH RESPECT TO THE SOLVENTS ABILITY TO SWELL THE CROSSLINKED POLYMER THAT IS FORMED.