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EP0102641A2 Expired / Lapsed EP ⏱️ 0.0 years remaining

Catalyst for manufacturing methacrolein

Assignee: Nippon Shokubai Co Ltd
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Filing: 1983-09-05
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Granted: —
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Expires: 2003-09-05
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Abstract

Abstract A catalyst for manufacturing methacrolein by the vapor phase oxidation of isobutylene or tertiary butanol, said catalyst having the composition represented by the following formula wherein A represents at least one element selected from the group consisting of nickel and cobalt, B represents at least one element selected from the group consisting of alkali metals, alkaline earth metals and thallium, C represents at least one element selected from the group consisting of phosphorus, tellurium, antimony, tin, cerium, lead, niobium, manganese and zinc, D represents at least one element selected from the group consisting of silicon, aluminum, zirconium and titanium, a, b, c, d, e, f, g, h, and x respectively represent the atomic ratios of Mo, W, Bi, Fe, A, B, C, D, and 0, and when a is fixed at 12, b is from 0 to 10, c is from 0.1 to 10, d is from 0.1 to 20, e is from 2 to 20, f is from 0 to 10, g is from 0 to 4, h is from 0 to 30 and x is a number determined by the atomic valences of the individual elements, and being molded in the shape of a hollow cylinder having an outside diameter of 3.0 to 10.0 mm, an inside diameter 0.1 to 0.7 times the outside diameter and a length 0.5 to 2.0 times the outside diameter.

Inventors

  • 👤 Noboru Saito
  • 👤 Takeshi Satake
  • 👤 Ryuji Aoki
  • 👤 Isao Nagai

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-11-01 23:42
CPC Classifications
C; C07; C07C; C07C45/00; C07C45/27; C07C45/32; C07C45/37; B; B01; B01J; B01J23/00; B01J19/00; B01J19/30; B01J23/002; B01J23/70; B01J23/76; B01J23/84; B01J23/85; B01J23/88; B01J23/887; B01J23/8876; B01J23/8877; B01J23/888; B01J23/8885; B01J35/00; B01J35/50; B01J35/55; C07C45/33; C07C45/34; C07C45/35; B01J2219/00; B01J2219/30; B01J2219/302; B01J2219/30223; B01J2219/304; B01J2219/30475; B01J2219/31; B01J2219/312; B01J2523/00

Claims Analysis

Total Claims: 3
Claim 1
Independent Claim 227 words
A catalyst for manufacturing methacrolein by the vapor phase oxidation of isobutylene or tertiary butanol, said catalyst having the composition represented by the following formula wherein A represents at least one element selected from the group consisting of nickel and cobalt, B represents at least one element selected from the group consisting of alkali metals, alkaline earth metals and thallium, C represents at least one element selected from the group consisting of phosphorus, tellurium, antimony, tin, cerium, lead, niobium, manganese and zinc, D represents at least one element selected from the group consisting of silicon, aluminum, zirconium and titanium, a, b, c, d, e, f, g, h, and x respectively represent the atomic ratios of Mo, W, Bi, Fe, A, B, C, D, and 0, and when a is fixed at 12, b is from 0 to 10, c is from 0.1 to 10, d is from 0.1 to 20, e is from 2 to 20, f is from 0 to 10, g is from 0 to 4, h is from 0 to 30 and x is a number determined by the atomic valences of the individual elements, and being molded in the shape of a hollow cylinder having an outside diameter of 3.0 to 10.0 mm, an inside diameter 0.1 to 0.7 times the outside diameter and a length 0.5 to 2.0 times the outside diameter.
Claim 2
Dependent Claim 227 words
A catalyst for manufacturing methacrolein by the vapor phase oxidation of isobutylene or tertiary butanol, said catalyst having the composition represented by the following formula wherein A represents at least one element selected from the group consisting of nickel and cobalt, B represents at least one element selected from the group consisting of alkali metals, alkaline earth metals and thallium, C represents at least one element selected from the group consisting of phosphorus, tellurium, antimony, tin, cerium, lead, niobium, manganese and zinc, D represents at least one element selected from the group consisting of silicon, aluminum, zirconium and titanium, a, b, c, d, e, f, g, h, and x respectively represent the atomic ratios of Mo, W, Bi, Fe, A, B, C, D, and 0, and when a is fixed at 12, b is from 0 to 10, c is from 0.1 to 10, d is from 0.1 to 20, e is from 2 to 20, f is from 0 to 10, g is from 0 to 4, h is from 0 to 30 and x is a number determined by the atomic valences of the individual elements, and being molded in the shape of a hollow cylinder having an outside diameter of 3.0 to 10.0 mm, an inside diameter 0.1 to 0.7 times the outside diameter and a length 0.5 to 2.0 times the outside diameter.
Claim 3
Dependent Claim 32 words
The catalyst of claim 1 wherein where D is the outside diameter of the hollow cylinder and d is the inside diameter of the hollow cylinder is from 1.0 to 4.0 mm.

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