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US3714281A Expired / Lapsed US ⏱️ 0.0 years remaining

Dehydrogenation with a catalytic composite containing platinum rhenium,a group vi transition metal and an alkali or alkaline earth metal

Assignee: Universal Oil Products Co
•
Filing: 1971-12-13
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Granted: 1973-01-30
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Expires: 1991-12-13
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Abstract

Abstract DEHYDROGENATABLE HYDROCARBONS ARE DEHYDROGENATED BY CONTACTING THEM AT DEHYDROGENATION CONDITIONS WITH A CATALYTIC COMPOSITE COMPRISING A COMBINATION OF CATALYTICALLY EFFECTIVE AMOUNTS OF A PLATINUM GROUP COMPONENT, A RHENIUM COMPONENT, A GROUP VI TRANSITION METAL COMPONENT AND AN ALKALI OR ALKALINE EARTH METAL COMPONENT WITH A POROUS CARRIER MATERIAL. A SPECIFIC EXAMPLE OF THE CATALYTIC COMPOSITE DISCLOSED HEREIN IS A COMBINATION OF PLA;TINUM, RHENIUM, TUNGSTEN AND ALKALI OR ALKALINE EARTH METAL WITH A GAMMA-ALUMINA CARRIER MATERIALIN AMOUNTS SUFFICIENT TO RESULT IN THE COMPOSITE CONTAINING, ON AN ELEMENTAL BASIS, ABOUT 0.05 TO 1 WT. PERCENT PLATINUM, ABOUT 0.05 TO 1 WT. PERCENT RHENIUM, ABOUT 0.01 TO 1 WT. PERCENT TUNGSTEN AND ABOUT 0.1 TO 5 WT. PERCENT OF THE ALKALI OR ALKALINE EARTH METAL.

Inventors

  • 👤 J Hayes
  • 👤 E Pollitzer

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-26 17:04
CPC Classifications
C; C07; C07C; C07C5/00; C07C5/32; C07C5/327; C07C5/333; C07C5/3335; C07C5/3337; C07C5/321; C07C5/324; C07C5/325; C07C2521/00; C07C2521/02; C07C2521/04; C07C2523/00; C07C2523/02; C07C2523/04; C07C2523/16; C07C2523/24; C07C2523/26; C07C2523/28; C07C2523/30; C07C2523/32; C07C2523/36; C07C2523/38; C07C2523/40; C07C2523/42; C07C2523/44; C07C2523/54; C07C2523/56; C07C2523/64; C07C2523/656

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

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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) 1976-01-30 1976-07-31 1977-01-30 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1980-01-30 1980-07-31 1981-01-30 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1984-01-30 1984-07-31 1985-01-30 $7700.00 Window Closed / Lapsed

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