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US3764557A Expired / Lapsed US ⏱️ 0.0 years remaining

Catalyst activation process and activated catalyst

Assignee: Chevron USA Inc
•
Filing: 1971-01-11
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Granted: 1973-10-09
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Expires: 1991-01-11
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Abstract

Abstract A process for activating a catalytic composition including a porous inorganic oxide carrier, a platinum group component and a tin component, comprising: reacting the catalytic composition with an activating gas including oxygen at a temperature within the range from about 500*F. to about 1300*F. for at least about 0.5 hour. The activating gas preferably includes a halogenating component. The activating gas is preferably slightly moist and is preferably flowed through the catalytic composition. The catalytic composition may comprise a fresh catalytic composition, a regenerated catalytic composition, or a mixture thereof. A preferred activated catalytic composition comprises an alumina carrier, 0.01 to 3 weight percent platinum, 0.01 to 8 weight percent tin, and 0.01 to 3 weight percent halide. It may also contain 0.01 to 3 weight percent rhenium. Another preferred activated catalytic composition comprises an alumina carrier, 0.01 to 3 weight percent platinum, 0.01 to 5 weight percent tin, 0.001 to 1 weight percent iridium and 0.01 to 3 weight percent halide. Also covers the resulting activated catalytic compositions.

Inventors

  • 👤 H Kluksdahl

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-28 10:54
CPC Classifications
B; B01; B01J; B01J23/00; B01J23/90; B01J23/96; B01J23/38; B01J23/54; B01J23/56; B01J23/62; B01J23/622; B01J23/626; B01J23/64; B01J23/656; B01J23/6567; B01J37/00; B01J37/22; C; C10; C10G; C10G35/00; C10G35/04; C10G35/06; C10G35/085; C10G35/09

Claims Analysis

Total Claims: 7
Claim 1
Independent Claim 51 words
A process in accordance with claim 1 wherein the catalytic composition is contacted with a gas comprising oxygen at a temperature between 500* and 1300*F. prior to contacting the catalytic composition with said activating gas, to thereby regenerate the catalytic composition prior to contacting the catalytic composition with said activating gas.
Claim 2
Dependent Claim 87 words
A process in accordance with claim 1 wherein the catalytic composition consists essentially of platinum, platinum oxide, or platinum sulfide and tin, tin oxide, or tin sulfide and a porouS alumina carrier, and 0.3 to 3.0 weight percent halide and wherein said process consists essentially of contacting the catalytic composition with oxygen at a temperature between 500* and 1300*F. and then contacting the catalytic composition with oxygen and a halogenating component at a temperature between 500* and 1300*F. for a time sufficient to activate the catalytic composition.
Claim 3
Dependent Claim 41 words
A process in accordance with claim 1, wherein the platinum or platinum compound includes platinum in an amount from 0.01 to 3 weight percent, and the tin or tin compound is in an amount from about 0.01 to 8 weight percent.
Claim 4
Dependent Claim 18 words
A process in accordance with claim 4, wherein the catalytic composition includes 0.01 to 3 weight percent rhenium.
Claim 5
Dependent Claim 22 words
A process in accordance with claim 4, wherein the catalytic composition includes iridium in an amount from 0.001 to 1 weight percent.
Claim 6
Dependent Claim 14 words
A process in accordance with claim 1, wherein the activating gas is slightly moist.
Claim 7
Dependent Claim 17 words
A process in accordance with claim 1, wherein the activating gas is flowed through the catalytic composition.

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1976-10-08 1977-04-09 1977-10-09 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1980-10-08 1981-04-09 1981-10-09 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1984-10-08 1985-04-09 1985-10-09 $7700.00 Window Closed / Lapsed

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