公开(公告)号：US3793230A

公开(公告)日：1974-02-19

申请号：US3793230D

申请日：1972-02-24

Applicant: BAYER AG

Inventor： WOKULAT J ,  RUEBSAM F ,  DORN L ,  HEINZE G

IPC: C04B35/14 ,  B01J21/14 ,  B01J21/16 ,  B01J23/16 ,  B01J23/22 ,  B01J37/00 ,  C01B17/77 ,  C01B17/79 ,  B01J11/34 ,  B01J11/44

CPC classification number: C01B17/79 ,  B01J21/16 ,  B01J23/16 ,  B01J23/22 ,  C01B17/77

Abstract: A CATALYST FOR OXIDATION OF SO2 TO SO3, WHICH CAN BE USED AS A FLUIDIZED BED CATALYST. AN ABRASIVE RESISTNT SUPPORT IS FORMED BY ADDING SILICA FILER AND A CLAY BINDER TO A SILICA SOL; ADDING HYDRATED MAGNESIUM OXIDE TO THE RESULTING MIXTURE, TO FORM A GELLABLE COMPOSITION; DISPRESING THE GELLABLE COMPOSITION IN A LIQUID TO FORM GEL SPHERES; CALCINING THE SPHERES; AND TREATING THEN WITH AN ACID TO REMOVE SOLUBLE COMPONENTS. AFTER THE ACID TREATMENT. THE SUPPORT IS IMPREGNATED WITH AN ALKALIMETAL VANDADATE SOLUTION AND CALCINED.