US4584411A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydroformylation process
Assignee: Shell USA Inc
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Filing: 1985-02-25
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Granted: 1986-04-22
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Expires: 2005-02-25
Abstract
Abstract This invention relates to a process for improving the hydroformylation of Dimersol oligomers by first contacting the catalyst with a tantalum (V) halide/oxide-inorganic oxide catalyst before hydroformylating.
Inventors
- 👤 Thomas H. Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 04:38
CPC Classifications
C; C07; C07C; C07C29/00; C07C29/16; C07C45/00; C07C45/49; C07C45/50
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
164 words
In a process for the hydroformylation of an olefin oligomerization product obtained by the liquid phase oligomerization of propylene and/or butylene in the presence of a catalyst formed by reacting a nickel compound with a hydrocarbyl aluminum halide, said hydroformylation being carried out by contacting said oligomerization product with syngas in the presence of a hydroformylation catalyst to produce aldehydes or alcohols, the improvement which comprises: contacting at a temperature ranging from about 25° C. to about 300° C. at least a portion of said oligomerization product with a reforming catalyst comprising pentavalent tantalum, halogen, oxygen and an inorganic oxide substrate wherein at least one valence of tantalum is bound to oxygen which is bound to the substrate, at least one valence of the tantalum is bound to halogen and the remaining tantalum valences are bound to halogen and/or oxygen which oxygen may or may not be bound to the substrate, and then hydroformylating the resultant olefin product to produce an alcohol or aldehyde.
Claim 2
Dependent Claim
164 words
In a process for the hydroformylation of an olefin oligomerization product obtained by the liquid phase oligomerization of propylene and/or butylene in the presence of a catalyst formed by reacting a nickel compound with a hydrocarbyl aluminum halide, said hydroformylation being carried out by contacting said oligomerization product with syngas in the presence of a hydroformylation catalyst to produce aldehydes or alcohols, the improvement which comprises: contacting at a temperature ranging from about 25° C. to about 300° C. at least a portion of said oligomerization product with a reforming catalyst comprising pentavalent tantalum, halogen, oxygen and an inorganic oxide substrate wherein at least one valence of tantalum is bound to oxygen which is bound to the substrate, at least one valence of the tantalum is bound to halogen and the remaining tantalum valences are bound to halogen and/or oxygen which oxygen may or may not be bound to the substrate, and then hydroformylating the resultant olefin product to produce an alcohol or aldehyde.
Claim 3
Dependent Claim
25 words
The process of claim 1, where, in said reforming catalyst, the inorganic oxide substrate is silica, alumina, silica-alumina, zeolite, open lattice clay or mixtures thereof.
Claim 4
Dependent Claim
36 words
The process of claim 1, where, in said reforming catalyst, the inorganic oxide substrate has a major component of silica, or alumina or a mixture hereof and the halogen is chloride, fluoride or a mixture thereof.
Claim 5
Dependent Claim
28 words
The process of claims 1, 2 or 3 wherein, contact is made with the reforming catalyst at a temperature ranging from about 100° C. to about 250° C.
Claim 6
Dependent Claim
40 words
The process of claims 1, 2 or 3 wherein, prior to the hydroformylating, the reformed olefin product is separated into an olefin cut having a carbon number ranging from C 6 to C 12 , which cut is then hydroformylated.
Claim 7
Dependent Claim
49 words
The process of claim 1, 2 or 3 wherein, prior to the hydroformylating, the reformed olefin product is separated into an olefin cut having a carbon number ranging from C 6 to C 12 with a carbon number spread at about two carbon atoms, which cut is then hydroformylated.
References Cited (Backward Citations)
US1981819A
Cited
US3255259A
Cited
US3965192A
Cited
US3937742A
Cited
US4098727A
Cited
JPS57120543A
Cited
JPS5821638A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-04-21 | 1989-10-21 | 1990-04-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-04-21 | 1993-10-21 | 1994-04-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-04-21 | 1997-10-21 | 1998-04-22 | $7700.00 | Window Closed / Lapsed |