Patent FR2334951B1 successfully refreshed from Google Patents.
US4489216A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydrocarbon isomerization
Assignee: Texaco Inc
•
Filing: 1982-01-25
•
Granted: 1984-12-18
•
Expires: 2002-01-25
Abstract
Abstract Isomerization is effected at improved conversion and selectivity by use of a 0.5 w %-2.5 w % platinum-palladium group metal on hydrogen mordenite catalyst, silica to alumina mole ratio in the range of 10:1 to 20:1, the catalyst having been calcined at 1200 DEG F.-1500 DEG F. prior to use whereby it acquires activated sites not present in mordenite calcined at lower temperature.
Inventors
- 👤 Paul H. Lewis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 11:20
CPC Classifications
C; C07; C07C; C07C6/00; C07C6/08; C07C6/12; C07C6/126; B; B01; B01J; B01J29/00; B01J29/04; B01J29/06; B01J29/18; B01J29/20; B01J29/22; C07C5/00; C07C5/22; C07C5/2206; C07C5/226; C07C5/27; C07C5/2767; C07C5/277; C07C5/2791; C07C6/123; C07C2523/00; C07C2523/38; C07C2523/40; C07C2523/44; C07C2529/00; C07C2529/04; C07C2529/06; C07C2529/18; C07C2529/20; C07C2529/22; Y; Y02; Y02P; Y02P20/00; Y02P20/50
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
67 words
The method of isomerizing an isomerizable hydrocarbon charge which comprises passing an isomerizable hydrocarbon charge at isomerization conditions into contact with as isomerization catalyst, a hydrogen mordenite catalyst, having a silica-to-alumina mole ratio of 10-20:1, loaded with a metal of the platinim-palladium group, said catalyst containing activated isomerization sites formed by calcining at 1200° F.-1500° F. after loading, thereby forming product isomate; and recovering said product isomate.
Claim 2
Independent Claim
67 words
The method of isomerizing an isomerizable hydrocarbon charge which comprises passing an isomerizable hydrocarbon charge at isomerization conditions into contact with as isomerization catalyst, a hydrogen mordenite catalyst, having a silica-to-alumina mole ratio of 10-20:1, loaded with a metal of the platinim-palladium group, said catalyst containing activated isomerization sites formed by calcining at 1200° F.-1500° F. after loading, thereby forming product isomate; and recovering said product isomate.
Claim 3
Dependent Claim
14 words
The method of isomerizing as claimed in claim 1 wherein said charge contains n-paraffin.
Claim 4
Dependent Claim
14 words
The method of isomerizing as claimed in claim 3 wherein said metal is palladium.
Claim 5
Dependent Claim
19 words
The method of isomerizing as claimed in claim 1 wherein said isomerization conditions include temperature of 400° F.-500° F.
Claim 6
Independent Claim
77 words
The method of isomerizing an isomerizable hydrocarbon charge containing normal paraffins which comprises passing an isomerizable hydrocarbon charge at isomerization conditions including temperature of 400° F.-500° F. into contact with, as isomerization catalyst, a hydrogen mordenite catalyst, having a silica-to-alumina mole ratio of 10-20:1, loaded with 0.5 w %-2.5 w % palladium, said catalyst containing activated isomerization sites formed by calcining at 1200° F.-1500° F. after loading thereby forming a product isomate; and recovering said product isomate.
Claim 7
Independent Claim
77 words
The method of isomerizing an isomerizable hydrocarbon charge containing normal paraffins which comprises passing an isomerizable hydrocarbon charge at isomerization conditions including temperature of 400° F.-500° F. into contact with, as isomerization catalyst, a hydrogen mordenite catalyst, having a silica-to-alumina mole ratio of 10-20:1, loaded with 0.5 w %-2.5 w % palladium, said catalyst containing activated isomerization sites formed by calcining at 1200° F.-1500° F. after loading thereby forming a product isomate; and recovering said product isomate.
References Cited (Backward Citations)
US3281482A
Cited
US3442794A
Cited
US3507931A
Cited
US3812199A
Cited
US3792098A
Cited
US4232181A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-12-18 | 1988-06-18 | 1988-12-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-12-18 | 1992-06-18 | 1992-12-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-12-18 | 1996-06-18 | 1996-12-18 | $7700.00 | Window Closed / Lapsed |