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公开(公告)号:KR800000260B1
公开(公告)日:1980-04-09
申请号:KR760002000
申请日:1976-08-16
Applicant: STANDARD OIL CO
IPC: B01J27/18
Abstract: Acrylic acid or methacrylic acid was prepd. by oxidating acrolein or methacrolein in O2 and steam at 200≦̸-500≦̸C in the presence of oxide catalyst (I; A = rubidium, tallium, cesium, arsenic, titan, potassium; integer a
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公开(公告)号:KR810000516B1
公开(公告)日:1981-05-25
申请号:KR770002412
申请日:1977-10-08
Applicant: STANDARD OIL CO OHIO
IPC: C07C51/145 , C07C57/04
Abstract: Olefinic aldehydes were oxidized to olefinic acids such as methacrolein, acrolein to methacrylic acid acrylic acid, at 200-500≦̸C over mixed oxide catalysts contg. Mo, P, As and Cu. Thus, a 1:5.7:4.6:8.6 (molar) mixt. of methacrolein, air, N, and steam was passed at a 2-sec-residence time through a tube heated at 354≦̸C and contg. the mixed oxide catalyst on an Alundum support to give methacrylic acid in 93.8% yield.
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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
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公开(公告)号:KR800001473B1
公开(公告)日:1980-12-17
申请号:KR760000667
申请日:1976-03-19
Applicant: STANDARD OIL CO OHIO
Inventor: GRASSELLI R , WHITE J , REGE J
IPC: C07C57/04
Abstract: Acrylic acid and methacrylic acid were prepd. by catalytic oxdn. by O2 of acrolein and methacrolein at 200-600↿C over WaPbVcMo12Ox catalyst (a,c = 0.1-12; b =
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公开(公告)号:KR800000672B1
公开(公告)日:1980-07-14
申请号:KR800002225
申请日:1980-06-05
Applicant: STANDARD OIL CO
Inventor: APPLEQUIST M , WHITE J , SHAW W
IPC: B01J27/14
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公开(公告)号:KR800000671B1
公开(公告)日:1980-07-14
申请号:KR800002224
申请日:1980-06-05
Applicant: STANDARD OIL CO
Inventor: SHAW W , WHITE J , APPLEQUIST M
IPC: B01J27/14
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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.
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8.
公开(公告)号:PT67141A
公开(公告)日:1977-11-01
申请号:PT6714177
申请日:1977-10-11
Applicant: STANDARD OIL CO
Inventor: BREMER N , WHITE J , MILBERGER E
IPC: C07D307/60 , B01J27/00 , B01J27/192 , C07B61/00 , C07C51/215 , C07C51/25
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公开(公告)号:PT67140A
公开(公告)日:1977-11-01
申请号:PT6714077
申请日:1977-10-11
Applicant: STANDARD OIL CO
Abstract: Coated catalysts having an inert support material with an outer surface and a coating of active catalyst containing molybdenum, phosphorus, arsenic, copper and oxygen have been found to be especially effective catalysts for the production of unsaturated acids from the corresponding unsaturated aldehydes, for example, methacrolein is oxidized to methacrylic acid using these catalysts. The catalysts give a very low exotherm, very high single pass yields of the desired acid and reduce the undesirable byproducts.
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