公开(公告)号：DE3211900A1

公开(公告)日：1983-10-13

申请号：DE3211900

申请日：1982-03-31

Applicant: BASF AG

Inventor： HAAS FRANZ DIPL CHEM DR ,  JANISCH GERHARD DIPL ING DR ,  SCHREYER GEROLD

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

公开(公告)号：DE3211629A1

公开(公告)日：1983-10-06

申请号：DE3211629

申请日：1982-03-30

Applicant: BASF AG

Inventor： HAAS FRANZ DIPL CHEM DR ,  JANISCH GERHARD DIPL ING DR ,  SCHREYER GEROLD

IPC: B01J20/28 ,  B01J20/32 ,  C01B31/08 ,  B01J20/20 ,  C08J3/24 ,  C01B31/14

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.