公开(公告)号：US3629148A

公开(公告)日：1971-12-21

申请号：US3629148D

申请日：1969-09-24

Applicant: STANDARD OIL CO OHIO

Inventor： DOMINIK JURGEN G ,  PRESSON ROBERT D ,  WYSOCKI CARL G

IPC: B01J23/88 ,  B01J27/192 ,  B01J11/82

CPC classification number: B01J27/192

Abstract: THE INSTANT PRODUCT IS A REMANUFACTURED CATALYST. USED OR SPENT BISMUTH PHOSPHOMOLYBDATE CATALYST IS REFORMULATED WITH THE ADDITION OF IRON BY COMMUNUTING SAID CATALYST WITH SUFFICIENT WATER TO FORM A PASTE, ADDING AQUEOUS AMMONIUM HEPTAMOLYBDATE SOLUTION TO SAID PASTE TO FORM A SLURRY, ADDING SAID SLURRY TO A SILICA DISPERSION IN WATER ACIDIFIED WITH PHOSPHORIC ACID, ADDING AN IRON SALT IN ACIDIC SOLUTION TO SAID SLURRY AND HOMOGENEOUSLY DISPERSING IT THEREIN TO FORM A SMOOTH MIXTURE, SPRAY-DRYING SAID MIXTURE AND CALCINING THE SPRAY-DRIED PRODUCT.