公开(公告)号：US3843555A

公开(公告)日：1974-10-22

申请号：US39343473

申请日：1973-08-31

申请人： KNAPSACK AG

发明人： LORK W ,  PRINZ P ,  ERPENBACH H ,  GEHRMANN K

IPC分类号： B01J23/88 ,  B01J23/882 ,  B01J35/10 ,  B01J37/00 ,  B01J37/03 ,  C01G39/00 ,  C07B61/00 ,  C07C45/34 ,  C07C45/35 ,  C07C51/00 ,  C07C51/215 ,  C07C51/25 ,  C07C57/055 ,  C07C67/00 ,  B01J11/22

CPC分类号： B01J23/882 ,  B01J35/10 ,  B01J35/1009 ,  B01J35/1038 ,  B01J37/0018 ,  B01J37/03 ,  C07C45/35 ,  C07C51/215 ,  C07C51/252 ,  C07C47/22 ,  C07C57/145 ,  C07C57/04

摘要： 1. IN A PROCESS FOR MAKING A COBALT MOLYBDATE CATALYST, WHEREIN COBALT MOLYBDATE IS PRECIPITATED FROM THE COMBINED AQUEOUS SOLUTIONS OF A COBALT SALT, OF A MOLYBDENUM COMPOUND AND OF AMMONIA AT A TEMPERATURE OF ABOUT 60* C. AND AT A PH OF AT MOST 7, THE RESULTING PRECIPITATE IS FILTERED OFF, WASHED AND DRIED AT A TEMPERATURE OF AT LEAST 100* C., THE RESULTING DRY COBALT MOLYBDATE IS HEATED FOR SEVERAL HOURS AT ELEVATED TEMPERATURES, GROUND, SHAPED AND THE RESULTING SHAPES OF COBALT MOLYBDATE ARE SINTERED FOR SEVERAL HOURS, THE IMPROVEMENT WHICH COMPRISES COMBINING AN AQUEOUS SOLUTION OF THE COBALT SALT WITH THAT OF THE MOLYBDENUM COMPOUND IN THE ATOMIC ARTIO OF CO:MO OF ABOUT 1.05:1; ESTABLISHING IN THE COMBINED SOLUTIONS A PH BETWEEN 3.8 AND 6.0; DRYING THE PRECIPITATE AT 110-170* C; HEATING THE DRY COBALT MOLYBDATE TO TEMPERATURES BETWEEN 250 AND 550* C.; AND SINTERING THE COBALT MOLYBDATE SHAPES AT TEMPERATURES BETWEEN 500 AND 700* C WITH THE RESULTANT FORMATION OF A COBALT MOLYBDATE CATALYST HAVING AN INNER SURFACE ARE BETWEEN 4 AND 8 SQUARE METERS/G. AND A VOLUME OF PORES BETWEEN 0.1 AND 0.2 MILLILITERS/G.