公开(公告)号：US3838068A

公开(公告)日：1974-09-24

申请号：US21915372

申请日：1972-01-19

Applicant: BAYER AG

Inventor： SCHERHAG B ,  HAUSWEITER A ,  HAGEDORN F ,  WEDEMEYER K

IPC: B01J23/18 ,  B01J23/28 ,  B01J23/31 ,  B01J23/835 ,  B01J27/18 ,  B01J11/82

CPC classification number: B01J23/835 ,  B01J23/18 ,  B01J23/28 ,  B01J23/31 ,  B01J27/18

Abstract: AN ACTIVATED TIN PHOSPHATE CATALYST IS PREPARED BY REACTING A TIN COMPOUND WITH A PHOSPHORIC ACID AND ACTIVATING THE TIN PHOSPHATE FORMED BY ADDING THERETO ONE OR MORE COMPOUNDS OF METALS FROM THE GROUP OF MOLYBDENUM, BISMUTH, VANADIUM, IRON AND COBALT AND THEREAFTER HEATING THE RESULTING MASS. THE TIN PHOSPHATE CATALYST CONTAINS IN THE RANGE OF 10 TO 30 PARTS BY WEIGHT OF PHOSPHORUS AND IN THE RANGE OF 30 TO 50 PARTS BY WEIGHT OF TIN PER 100 PARTS BY WEIGHT OF TIN PHOSPHATE. THE ACTIVATED TIN PHOSPHATE CATALYST CONTAINS FROM 1 TO 10% BY WEIGHT OF THE ACTIVATING METALS BASED ON THE WEIGHT OF THE TIN PHOSPHATE.