公开(公告)号：US2093047A

公开(公告)日：1937-09-14

申请号：US71753634

申请日：1934-03-26

Applicant: JOOST HUDIG ,  REESEMA NIKOLAAS HENDRIK SIEWE

Inventor： JOOST HUDIG ,  REESEMA NIKOLAAS HENDRIK SIEWE

IPC: C05F11/02

CPC classification number: C05F11/02

公开(公告)号：US3903074A

公开(公告)日：1975-09-02

申请号：US48501874

申请日：1974-07-01

Applicant: REESEMA NIKOLAAS HENDRIK SIEWE

Inventor： VAN REESEMA NIKOLAAS HENDRIK S

IPC: B01J39/16 ,  B01J41/08 ,  C08H99/00 ,  C08B15/06

CPC classification number: C08H99/00 ,  B01J39/16 ,  B01J41/09

Abstract: A humic product, such as ammonium humus crystallate or crystal humus acid is treated with an acid to esterify part of the hydroxyl groups, which are then etherified with the nonesterified hydroxyl groups. The resulting insolubilized humic material is amidated with an excess of a polyamine to produce an anion exchanger.

Abstract translation: 腐殖质如腐殖质结晶或结晶腐殖酸用酸处理以酯化部分羟基，然后用非酯化的羟基醚化。