公开(公告)号：DE3061184D1

公开(公告)日：1983-01-05

申请号：DE3061184

申请日：1980-03-07

Applicant: BASF AG

Inventor： KRABETZ RICHARD DR ,  ENGELBACH HEINZ DR ,  PALM PETER ,  SPAHN HEINRICH DR ,  HERRMANN WALTER DR

IPC: B01J23/00 ,  B01J23/88 ,  B01J23/887 ,  B01J35/08 ,  B01J35/10 ,  B01J37/02

Abstract: A coated catalyst comprising (a) an inert carrier having particles of not less than 100 mu m diameter and a surface area of up to 20 m2/g and (b) a coating which contains the catalytic material and adheres firmly to the outer surface and to the edge zone, near the surface, of the carrier particles, can be prepared by applying the catalytic material as a 10-70% strength suspension in water to the agitated carrier particles, which are at below 70 DEG C., if the suspension is sprayed, at a constant rate of from 0.01 to 2.0 kg of active material/hour/liter of carrier onto the carrier particles, while at the same time uniformly passing from 0.1 to 12 m3 (S.T.P.)/hour/liter of carrier of an inert gas at from 20 DEG to 300 DEG C. over the carrier particles, under conditions such that the water only evaporates incompletely but the water content of the resulting coating is less than the maximum degree of saturation of the catalytic material.

公开(公告)号：DE3208357A1

公开(公告)日：1982-09-23

申请号：DE3208357

申请日：1982-03-09

Applicant: BASF AG

Inventor： HERRMANN WALTER DR ,  SPAHN HEINRICH DR ,  BOSCH JOHANNES

IPC: B01J2/20 ,  B30B11/22 ,  B29B1/02

Abstract: In an upwardly open basin-shaped screen basket, one or more rotor cages aligned in the axle of the basket rotate with strips which are distributed over the circumference and operate according to the pass principle, at least one current interrupter being arranged inside the rotor cage or cages.