公开(公告)号：DE3360707D1

公开(公告)日：1985-10-10

申请号：DE3360707

申请日：1983-03-21

Applicant: BASF AG

Inventor： HAAS FRANZ DR ,  JANISCH GERHARD DR ,  SCHREYER GEROLD

IPC: B01J20/28 ,  B01J20/32 ,  C01B31/08

Abstract: A process for consolidating the surface of a granular adsorbent, wherein a water-containing adsorbent, which has taken up 25-70% by weight of the maximum possible amount of water, is heated to a temperature at which the water taken up evaporates, and is at the same time treated with an aqueous dispersion of a self-crosslinking copolymer, and the adsorbent thus coated is heated to a temperature at which the copolymer crosslinks. The coated adsorbent has virtually the same adsorption and desorption properties as the untreated adsorbent, but in contrast exhibits substantially improved abrasion resistance.

公开(公告)号：DE3364025D1

公开(公告)日：1986-07-17

申请号：DE3364025

申请日：1983-03-21

Applicant: BASF AG

Inventor： HAAS FRANZ DR ,  JANISCH GERHARD DR ,  SCHREYER GEROLD

IPC: B01J20/28 ,  B01J20/32 ,  C01B31/08

公开(公告)号：DE3723687A1

公开(公告)日：1989-01-26

申请号：DE3723687

申请日：1987-07-17

Applicant: BASF AG

Inventor： HAAS FRANZ DR ,  SCHREYER GEROLD

IPC: B01J20/30 ,  B01J20/32

Abstract: The surfaces of particulate adsorbents are consolidated by a process in which the adsorbent is impregnated with a cationic aqueous polymer solution and then treated with an anionic aqueous dispersion of a polymer having a softening point of from 60 DEG to 150 DEG C. and the materials are dried together.