公开(公告)号：US3778386A

公开(公告)日：1973-12-11

申请号：US3778386D

申请日：1970-04-24

Applicant: NIPPON KAYAKU KK

Inventor： SHIMABARA T ,  OGAWA M ,  TAKENAKA S ,  KIDO Y

IPC: B01J23/887 ,  B01J27/192 ,  B01J11/82

CPC classification number: B01J23/8876 ,  B01J27/192

Abstract: THE PREPARATION OF AN OXIDATION CATALYST IS DESCRIBED, REPRESENTED BY THE FOLLOWING GENERAL FORMULA:

NIACOBFECBIDLEMHMOFOG

IN WHICH L IS PHOSPHOROUS, ARSENIC OR BORON AND M IS POTASSIUM, RUBIDIUM OR CESIUM; AND WHEREIN A AND B HAVE A VALUE OF FROM 0 TO 15, A+B BEING 2 TO 15, C IS 0.5 TO 7, D IS 0.1 TO 4, E IS 0 TO 4, F IS 12, G IS 35 TO 85 AND H IS 0.01 TO 0.5. THE OXIDATION CATALYST IS USEFUL IN A PROCESS TO PRODUCE ACROLEIN BY OXIDIZING PROPYLENE IN VAPOR PHASE.

公开(公告)号：US3857796A

公开(公告)日：1974-12-31

申请号：US33605873

申请日：1973-02-26

Applicant: NIPPON KAYAKU KK

Inventor： OGAWA M ,  TAKENAKA S ,  SHIMIZU H

IPC: B01J23/00 ,  B01J23/28 ,  B01J23/30 ,  C07B61/00 ,  C07C45/35 ,  C07C51/00 ,  C07C51/25 ,  C07C57/055 ,  C07C67/00

CPC classification number: C07C45/35 ,  B01J23/28 ,  B01J23/30 ,  C07C51/252 ,  C07C47/22 ,  C07C57/04

Abstract: The present invention relates to a process for preparing acrylic acid by oxidizing acrolein and to an oxidation catalyst. More particularly, the present invention relates to a catalyst and a process for preparing acrylic acid by oxidizing acrolein or a mixed acrolein gas obtained by vapor phase oxidation of propylene with molecular oxygen in the presence of an oxidation catalyst of the empirical formula:

Abstract translation: 本发明涉及通过氧化丙烯醛和氧化催化剂制备丙烯酸的方法。