公开(公告)号：US3579574A

公开(公告)日：1971-05-18

申请号：US42750265

申请日：1965-01-22

申请人： DISTILLERS CO YEAST LTD

发明人： MEER WILHELMUS TEUNIS VAN DER

IPC分类号： B01J23/00 ,  B01J23/18 ,  B01J23/22 ,  B01J23/24 ,  B01J23/26 ,  B01J23/28 ,  B01J23/34 ,  B01J23/843 ,  B01J23/847 ,  C07C51/25 ,  C07C57/055 ,  C07C51/26 ,  C07C51/32

CPC分类号： C07C51/252 ,  B01J23/002 ,  B01J23/18 ,  B01J23/22 ,  B01J23/24 ,  B01J23/26 ,  B01J23/28 ,  B01J23/34 ,  B01J23/8435 ,  B01J23/8472 ,  B01J2523/00 ,  C07C57/04 ,  B01J2523/53 ,  B01J2523/55 ,  B01J2523/847 ,  B01J2523/845 ,  B01J2523/43 ,  B01J2523/842 ,  B01J2523/67 ,  B01J2523/17 ,  B01J2523/72

摘要： ACRYLIC ACID IS PREPARED BY THE VAPOR PHASE OXIDATION OF PROPYLENE OR ACROLEIN WITH OXYGEN IN THE PRESENCE OF A CATALYST CONSISTING ESSENTIALLY OF AN OXIDE COMPOSITION CONTAINING ANTIMONY AND VANADIUM OR ANTIMONY, VANADIUM AND AT LEAST ONE POLYVALENT METAL SELECTED FROM THE GROUP OF IRON, MANGANESE, CHROMIUM, COBALT, NICKEL, COPPER, ZINC, CADMIUNM, TUNGSTEN AND THORIUM, THE CATALYST BEING HEATED TO A TEMPERATURE ABOVE 700* TO ABOUT 900* C. IN MOLECULAR OXYGEN GAS BEFORE USE.