US4052450A
Expired / Lapsed
US
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Catalytic oxidation of α-olefins
Assignee: BASF SE
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Filing: 1973-10-10
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Granted: 1977-10-04
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Expires: 1993-10-10
Abstract
Abstract In the oxidation of α-olefins in the gas phase to α,β-olefinically unsaturated aldehydes and carboxylic acids with molecular oxygen in the presence of an inert gas using a catalyst containing molybdenum and bismuth with elements as oxides or mixed oxides at from 280° to 450° C a content of indium and/or aluminum and/or lanthanum and/or gallium as oxide or mixed oxide results in an improvement in the conversion and/or activity and/or life of the catalyst.
Inventors
- 👤 Richard Krabetz
- 👤 Heinz Engelbach
- 👤 Ulrich Lebert
- 👤 Walter Frey
- 👤 Gerd Duembgen
- 👤 Fritz Thiessen
- 👤 Carl-Heinz Willersinn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 10:41
CPC Classifications
B; B01; B01J; B01J23/00; B01J23/16; B01J23/24; B01J23/31; B01J23/70; B01J23/76; B01J23/84; B01J23/85; B01J23/88; B01J23/887; B01J23/8876; B01J23/888; B01J23/8885; C; C07; C07C; C07C45/00; C07C45/27; C07C45/32; C07C45/33; C07C45/34; C07C45/35; C07C51/00; C07C51/16; C07C51/21; C07C51/25; C07C51/252; B01J2523/00
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
204 words
A process for the oxidation of an α-olefinic hydrocarbon containing three to four carbon atoms in the gas phase with molecular oxygen to form an α-β-olefinically unsaturated carboxylic acid containing three to four carbon atoms, said process comprising passing a gas mixture of said α-olefinic hydrocarbon, molecular oxygen and an inert gas at a temperature of from 280° to 450° C. over a catalyst consisting essentially of the forumula : Mo.sub.a Bi.sub.b Me.sub.c.sup.1 Me.sub.d.sup.2 Me.sub.e.sup.3 Me.sub.f.sup.4 Me.sub.g.sup.5 O.sub.h in which: Me 1 is at least one metal selected from the group consisting of In and La; Me 2 is at least one metal selected from the group consisting of Fe and Cu; Me 3 is Ni ; Me 4 is at least one element selected from the group consisting of P, B, As, Cr, V and W; Me 5 is at least one metal selected from the group consisting of Ag, Pb, Mn, Re, Sn, Ge, Sm, Nb, Ta, Mg, Ca, Sr, Ba and Be; a is 12; b is 0.1 to 6; c is 0.005 to 3; d is 0.1 to 8; e is 4 to 12; f is 0 to 6; g is 0 to 3; and h is 36 to 102.
Claim 2
Dependent Claim
204 words
A process for the oxidation of an α-olefinic hydrocarbon containing three to four carbon atoms in the gas phase with molecular oxygen to form an α-β-olefinically unsaturated carboxylic acid containing three to four carbon atoms, said process comprising passing a gas mixture of said α-olefinic hydrocarbon, molecular oxygen and an inert gas at a temperature of from 280° to 450° C. over a catalyst consisting essentially of the forumula : Mo.sub.a Bi.sub.b Me.sub.c.sup.1 Me.sub.d.sup.2 Me.sub.e.sup.3 Me.sub.f.sup.4 Me.sub.g.sup.5 O.sub.h in which: Me 1 is at least one metal selected from the group consisting of In and La; Me 2 is at least one metal selected from the group consisting of Fe and Cu; Me 3 is Ni ; Me 4 is at least one element selected from the group consisting of P, B, As, Cr, V and W; Me 5 is at least one metal selected from the group consisting of Ag, Pb, Mn, Re, Sn, Ge, Sm, Nb, Ta, Mg, Ca, Sr, Ba and Be; a is 12; b is 0.1 to 6; c is 0.005 to 3; d is 0.1 to 8; e is 4 to 12; f is 0 to 6; g is 0 to 3; and h is 36 to 102.
Claim 3
Dependent Claim
19 words
A process as claimed in claim 1 wherein: d is 0.5 to 3; and e is 6 to 11.
Claim 4
Dependent Claim
12 words
A process as claimed in claim 1 wherein Me 2 is iron.
Claim 5
Dependent Claim
21 words
A process as claimed in claim 1 wherein Me 4 is a combination of P + W or Cr + W.
Claim 6
Dependent Claim
34 words
A process as claimed in claim 1 wherein: c is 0.01 to 2; d is 0.3 to 6; e is 4 to 12; f is 0.1 to 5; and g is 0.05 to 2.
Claim 7
Dependent Claim
44 words
A process as claimed in claim 1 wherein: b is 0.5 to 3; c is 0.01 to 1; d is 0.5 to 3; e is 6 to 11; f is 0.2 to 3; g is 0.1 to 1: and h is 41 to 84.
Claim 8
Dependent Claim
54 words
A process as claimed in claim 1 wherein: Me 2 is Fe or Fe + Cu and d is 0.5 to 3; Me 4 is at least one element selected from the group consisting of P, W and Cr and f is 0.1 to 5; g is 0 and h is 41 to 87.
Claim 9
Dependent Claim
13 words
A process as claimed in claim 7 wherein f is 0.2 to 3.
Claim 10
Dependent Claim
69 words
A process as claimed in claim 1 wherein: Me 2 is Fe and d is 0.5 to 3; Me 4 is at least one element selected from the group consisting of P, W and Cr and f is 0.1 to 5; Me 5 is an element selected from the group consisting of Sn, Ge, Mn and Re and g is 0.05 to 2; and h is 41 to 84.
Claim 11
Dependent Claim
24 words
A process as claimed in claim 9 wherein: f is 0.2 to 3; g is 0.1 to 1; and h is 41 to 76.
Claim 12
Dependent Claim
13 words
A process as claimed in claim 1 wherein the gas mixture contains steam.
Claim 13
Dependent Claim
20 words
A process as claimed in claim 11 wherein the gas mixture contains up to about 40% by volume of steam.
Claim 14
Dependent Claim
19 words
A process as claimed in claim 12 wherein the gas mixture contains less than 10% by volume of steam.
Claim 15
Dependent Claim
35 words
A process as claimed in claim 1 wherein the temperature is 300° C. to 420° C. with a residence time of the gas mixture in contact with the catalyst of about 0.05 to 6 seconds.
Claim 16
Dependent Claim
31 words
A process as claimed in claim 14 wherein the gas mixture comprises about 0.5 to 15% by volume of the α-olefinic hydrocarbon and about 2 to 20% by volume of oxygen.
Claim 17
Dependent Claim
20 words
A process as claimed in claim 15 wherein the gas mixture consists essentially of oxygen, α-olefinic hydrocarbon and inert gases.
Claim 18
Dependent Claim
21 words
A process as claimed in claim 15 wherein the gas mixture also contains about 2 to 8% by volume of steam.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-10-03 | 1981-04-04 | 1981-10-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-10-03 | 1985-04-04 | 1985-10-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-10-03 | 1989-04-04 | 1989-10-04 | $7700.00 | Window Closed / Lapsed |