Patent US4731391A successfully refreshed from Google Patents.
Patent US3723554A successfully refreshed from Google Patents.
US3723554A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydrocarbon isomerization process
Assignee: Universal Oil Products Co
•
Filing: 1971-02-16
•
Granted: 1973-03-27
•
Expires: 1991-02-16
Abstract
Abstract A process for isomerizing isomerizable hydrocarbons, utilizing a catalytic composite comprising a combination of a platinum group component and a lead component uniformly distributed throughout a porous carrier material wherein the catalytic composite contains, on an elemental basis, about 0.01 to about 2 wt.% platinum group component and lead in an atomic ratio of lead to platinum group component of from about 0.05:1 to about 0.9:1, is disclosed.
Inventors
- 👤 F Wilhelm
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 13:18
CPC Classifications
B; B01; B01J; B01J23/00; B01J23/38; B01J23/54; B01J23/56; B01J23/62; B01J23/622; B01J23/628; C; C07; C07C; C07C5/00; C07C5/22; C07C5/2206; C07C5/226; C07C2521/00; C07C2521/02; C07C2521/04; C07C2523/00; C07C2523/14; C07C2523/38; C07C2523/40; C07C2523/42; C07C2523/44; C07C2523/54; C07C2523/56; C07C2523/62; Y; Y02; Y02P; Y02P20/00; Y02P20/50; Y02P20/582
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
17 words
The process of claim 1 further characterized in that said carrier material is a refractory inorganic oxide.
Claim 2
Dependent Claim
15 words
The process of claim 2 further characterized in that said refractory inorganic oxide is alumina.
Claim 3
Dependent Claim
26 words
The process of claim 1 wherein said catalytic composite has combined therewith, on an elemental basis, about 0.1 to about 5 wt. percent chlorine or fluorine.
Claim 4
Dependent Claim
33 words
The process of claim 1 wherein said catalytic composite has combined therewith a sulfur component in an amount of about 0.05 to about 0.5 wt. percent sulfur, calculated on an elemental sulfur basis.
Claim 5
Dependent Claim
23 words
The process of claim 1 further characterized in that said platinum group component is platinum, palladium, or a compound of platinum or palladium.
Claim 6
Dependent Claim
52 words
The process of claim 1 further characterized in that said isomerizable hydrocarbon is a saturated hydrocarbon and said isomerization conditions include a temperature of about 0*C. to about 500*C., a pressure of about atmospheric to about 200 atmospheres, and a liquid hourly space velocity of about 0.1 to about 10 hr. 1
Claim 7
Dependent Claim
26 words
The process of claim 7 further characterized in that said hydrocarbon is commingled with about 0.1 to about 10 moles of hydrogen per mole of hydrocarbon.
Claim 8
Dependent Claim
16 words
The process of claim 7 further characterized in that said saturated hydrocarbon is a paraffinic hydrocarbon.
Claim 9
Dependent Claim
15 words
The process of claim 9 further characterized in that said hydrocarbon is a C4-C9 alkane.
Claim 10
Dependent Claim
29 words
The process of claim 10 wherein said catalytic composite has combined therewith about 1 to about 100 wt. percent Friedel-Crafts metal halide, calculated on a Friedel-Crafts metal halide-free composite.
Claim 11
Dependent Claim
32 words
The process of claim 7 wherein said catalytic composite has combined therewith, on an elemental basis, about 0.1 to about 5.0 wt. percent chlorine or fluorine and said carrier material is alumina.
Claim 12
Dependent Claim
38 words
The process of claim 1 further characterized in that said hydrocarbon is an olefinic hydrocarbon and said isomerization conditions include a temperature of about 0*C. to about 500*C. and a pressure of about atmospheric to about 200 atmospheres.
Claim 13
Dependent Claim
18 words
The process of claim 13 further characterized in that said olefin is a C4 - C7 isomerizable olefin.
Claim 14
Dependent Claim
52 words
The process of claim 1 further characterized in that said isomerizable hydrocarbon is an alkylaromatic hydrocarbon and said isomerization conditions include a temperature of about 0*C. to about 600*C., a pressure of about atmospheric to about 100 atmospheres, and a liquid hourly space velocity of about 0.1 to about 20 hr. 1
Claim 15
Dependent Claim
26 words
The process of claim 15 further characterized in that said hydrocarbon is commingled with about 1 to about 25 moles of hydrogen per mole of hydrocarbon.
Claim 16
Dependent Claim
32 words
The process of claim 15 wherein said catalytic composite has combined therewith about 0.1 to about 5 wt. percent chlorine or fluorine, on an elemental basis, and said carrier material is alumina.
Claim 17
Dependent Claim
22 words
The process of claim 15 further characterized in that said hydrocarbon is a C8 alkylaromatic or a non-equilibrium mixture of C8 alkylaromatics.
References Cited (Backward Citations)
US3000811A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-03-26 | 1976-09-25 | 1977-03-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-03-26 | 1980-09-25 | 1981-03-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-03-26 | 1984-09-25 | 1985-03-27 | $7700.00 | Window Closed / Lapsed |