公开(公告)号：KR800001329B1

公开(公告)日：1980-10-28

申请号：KR770001516

申请日：1977-06-30

Applicant: STANDARD OIL CO OHIO

Inventor： APPLEQUIST M ,  WHITE J

IPC: C07C51/32

Abstract: Methacrolein or acrolein was oxidized to methacrylic and acrylic acid at 200-500≦̸C under vapor atm. with a total conversion of aldehyde

公开(公告)号：KR800000622B1

公开(公告)日：1980-07-07

申请号：KR770002413

申请日：1977-10-18

Applicant: STANDARD OIL CO OHIO

Inventor： WHITE J ,  APPLEQUIST M ,  SHAW W

IPC: B01J27/18

Abstract: Metharylic acid (I) was prepd. from methacrolein(II) by oxidn. with mo1. 0 at 200-600≦̸C in the presence of a catalyst contg. an oxide of W,P,U,Mo, and Co, Rn, Cd, Sr. An aq. slurry of MoO3 86.2, 85 % H3Po4 7.7, V2O3 7.5, and NH4 paratungstate 10.8 was refluxed overnight, evapd., and dried overnight at 120≦̸C to prepare a catalyst giving 65.9 % conversion and 45.4 % selectivity in the oxidn. of II to I at 355≦̸C and contact time 4.8s.