US4517402A
Expired / Lapsed
US
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Selective sorption of linear aliphatic compounds by zeolites
Assignee: Mobil Oil AS
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Filing: 1983-05-02
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Granted: 1985-05-14
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Expires: 2003-05-02
Abstract
Abstract A process for selective separation of a linear aliphatic compound in admixture with at least one non-linear hydrocarbon compound, said compounds having a critical dimension of less than 6.8 Angstrom Units for sorption, which comprises contacting the mixture with zeolite ZSM-11, said zeolite being characterized by a silica:alumina mole ratio of at least 12, to effect selective sorption of said linear aliphatic compound by said zeolite.
Inventors
- 👤 Ralph M. Dessau
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 08:53
CPC Classifications
C; C10; C10G; C10G25/00; C10G25/02; C10G25/03; C07; C07C; C07C17/00; C07C17/38; C07C17/389; C07C29/00; C07C29/74; C07C29/76; C07C7/00; C07C7/12; C07C7/13
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
67 words
A process for selective separation of a linear paraffin compound in admixture with at least one branched paraffin compound, said compounds having a critical dimension of less than 6.8 Angstrom Units for sorption, which comprises contacting the mixture of paraffins with zeolite ZSM-11, said zeolite being characterized by a silica:alumina mole ratio of at least 12, to effect selective sorption of said linear paraffin by said zeolite.
Claim 2
Dependent Claim
67 words
A process for selective separation of a linear paraffin compound in admixture with at least one branched paraffin compound, said compounds having a critical dimension of less than 6.8 Angstrom Units for sorption, which comprises contacting the mixture of paraffins with zeolite ZSM-11, said zeolite being characterized by a silica:alumina mole ratio of at least 12, to effect selective sorption of said linear paraffin by said zeolite.
Claim 3
Dependent Claim
10 words
The process of claim 1 wherein said paraffins are isomers.
Claim 4
Dependent Claim
16 words
The process of claim 1 wherein n-hexane is selectively sorbed from a solution containing methyl pentane.
Claim 5
Dependent Claim
19 words
The process of claim 3 wherein said zeolite comprises H-ZSM-11, having a Constraint Index of about 2 to 12.
Claim 6
Dependent Claim
67 words
A process for selective separation of a linear aliphatic compound in admixture with at least one branched aliphatic compound, said compounds having a critical dimension of less than 6.8 Angstrom Units for sorption, which comprises contacting the mixture of compounds with zeolite ZSM-11, said zeolite being characterized by a silica:alumina mole ratio of at least 12, to effect selective sorption of said linear compound by said zeolite.
Claim 7
Dependent Claim
67 words
A process for selective separation of a linear aliphatic compound in admixture with at least one branched aliphatic compound, said compounds having a critical dimension of less than 6.8 Angstrom Units for sorption, which comprises contacting the mixture of compounds with zeolite ZSM-11, said zeolite being characterized by a silica:alumina mole ratio of at least 12, to effect selective sorption of said linear compound by said zeolite.
Claim 8
Dependent Claim
17 words
The process of claim 5 wherein said compounds are paraffinic isomers, and the branched paraffins are methyl-substituted.
Claim 9
Dependent Claim
18 words
The process of claim 6 wherein said zeolite comprises H-ZSM-11 and said paraffin compounds comprise n-hexane and 3-methylpentane.
Claim 10
Dependent Claim
16 words
The process of claim 5 wherein hexene-1 is selectively sorbed from a solution containing methyl pentene.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-05-13 | 1988-11-12 | 1989-05-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-05-13 | 1992-11-12 | 1993-05-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-05-13 | 1996-11-12 | 1997-05-14 | $7700.00 | Window Closed / Lapsed |