公开(公告)号：US3847841A

公开(公告)日：1974-11-12

申请号：US33938273

申请日：1973-03-07

Applicant: TOKUYAMA SODA KK

Inventor： KURAMOTO N ,  MOTANI K ,  NAKAHARA A

IPC: B01D15/04 ,  B01J20/22 ,  C02F1/28 ,  C08C19/22 ,  C08F8/30 ,  C08F8/32 ,  C08F8/34 ,  C08F27/06 ,  C08F27/08

CPC classification number: C08C19/22 ,  B01J20/22 ,  C02F1/285 ,  C08F8/32 ,  C08F8/34 ,  C08F8/42 ,  C08F2810/30 ,  C22B3/24 ,  Y02P10/234 ,  Y10S210/914 ,  C08F8/20 ,  C08F110/06 ,  C08F8/44 ,  C08F8/26 ,  C08F114/06 ,  C08F8/04 ,  C08F8/30 ,  C08F112/08 ,  C08F112/14 ,  C08F214/08 ,  C08F214/06 ,  C08F210/06

Abstract: 1. A HEAVY METAL ABSORBING RESIN CONSISTING ESSENTIALLY OF A POLYMER CONPRISING: A. A BACKBONE POLYMER SELECTED FROM AT LEAST ONE OF POLYSTYRENE, POLYVINYL CHLORIDE, A COPOLYMER OF VINYL CHLORIDE WITH ANOTHER COPOLYMERIZABLE MONOMER, A GRAFT COPOLYMER OF A RUBBERY SUBSTANCE TO WHICH VINYL CHLORIDE HAS BEEN GRAFTED, AND A CHLORINATED POLYOLEFIN; AND B. A MOIETY ATTACHED TO THE BACKBONE POLYMER WHICH IS SELECTED FROM AT LEAST ONE THIOSEMICARBAZIDE OF THE GROUP CONSISTING OF -NHNHCSNHR AND -NHCSNHNHR, WHEREIN R IS A HYDROGEN ATOM, ALKYL MOIETY, ARYL MOIETY, OR ACYL MOIETY.

公开(公告)号：US3790535A

公开(公告)日：1974-02-05

申请号：US3790535D

申请日：1972-10-06

Applicant: TOKUYAMA SODA KK

Inventor： MOTANI K ,  KIYOTOSHI T ,  NAKAHARA A

IPC: C08F8/00 ,  B01J20/34 ,  B01J45/00 ,  B01J49/00 ,  B29B11/00 ,  B29B17/02 ,  C01G13/00 ,  C08F8/42 ,  C08G85/00 ,  C08G23/00

CPC classification number: B01J45/00 ,  C01G13/00

Abstract: A METHOD OF REGENERATING A CHELATE RESIN HAVING MERCURY ADSORBED THERETO, WHICH COMPRISES CONTACTING THE RESIN WITH A SOLUTION OF A SULFIDE OF AN ALKALI METAL, BARIUM OR AMMONIUM HAVING A PH OF AT LEAST 11.0, PREFERABLY AT LEAST 13.0, TO THEREBY LIBERATE THE MERCURY FROM THE CHELATE RESIN.