US3979280A
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Separation of unsaturated compounds from liquid hydrocarbon mixtures containing same
Assignee: Wintershall Dea International AG
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Filing: 1974-12-12
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Granted: 1976-09-07
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Expires: 1994-12-12
Abstract
Abstract Unsaturated hydrocarbons are separated from liquid mixtures containing same by adsorbing the unsaturated compound using a metal-loaded macroporous exchange resin and desorbing the unsaturated compound using a normally gaseous hydrocarbon.
Inventors
- 👤 Maximilian Dielacher
- 👤 Uwe Hansen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 08:49
CPC Classifications
C; C07; C07C; C07C7/00; C07C7/12
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
109 words
In a process for the separation of unsaturated compounds from liquid hydrocarbon mixtures containing same by contacting the mixture with a metal ion laden cation exchange resin having a specific surface area of at least 1 m 2 /g and an average pore diameter of greater than 10 A, the improvement which comprises adsorbing said unsaturated compounds on a macroporous dehydrated cation exchange resin laden with monovalent silver or copper ions and subsequently displacing said unsaturated compounds in liquid phase from said resin at a temperature between about 10° and 40°C. and a pressure between about 1 and 30 atmospheres using a normally gaseous olefin as the desorption medium.
Claim 2
Dependent Claim
109 words
In a process for the separation of unsaturated compounds from liquid hydrocarbon mixtures containing same by contacting the mixture with a metal ion laden cation exchange resin having a specific surface area of at least 1 m 2 /g and an average pore diameter of greater than 10 A, the improvement which comprises adsorbing said unsaturated compounds on a macroporous dehydrated cation exchange resin laden with monovalent silver or copper ions and subsequently displacing said unsaturated compounds in liquid phase from said resin at a temperature between about 10° and 40°C. and a pressure between about 1 and 30 atmospheres using a normally gaseous olefin as the desorption medium.
Claim 3
Dependent Claim
33 words
A process according to claim 1, characterized by using cation exchange resins having a specific surface area greater than 40 m 2 /gram and an average pore diameter of lesser than 250 A.
Claim 4
Dependent Claim
17 words
A process according to claim 1 characterized by using propene or butene as the normally gaseous olefin.
Claim 5
Dependent Claim
30 words
A process according to any of claim 1 characterized by operating in a temperature range of from 10° to 25°C and under superatmospheric pressures of between 1 and 5 atmospheres.
Claim 6
Dependent Claim
34 words
A process according to claim 1 characterized by separating monoolefins having from 4 to 25 carbon atoms as the unsaturated compounds from hydrocarbon mixtures containing saturated hydrocarbons having from 4 to 25 carbon atoms.
Claim 7
Dependent Claim
20 words
A process according to claim 1 characterized by separating aromatics as the unsaturated compounds from hydrocarbon mixtures containing saturated hydrocarbons.
Claim 8
Dependent Claim
24 words
A process according to claim 3 characterized by operating at a temperature between 10° and 25°C and a pressure between 1 and 5 atmospheres.
Claim 9
Dependent Claim
33 words
A process according to claim 3 characterized by using a cation exchange resin having a specific surface area between 500 and 750 square meter/gram and an average pore diameter between 40 and 60A.
Claim 10
Dependent Claim
16 words
A process according to claim 4 characterized in that the resin is loaded with silver ions.
Claim 11
Dependent Claim
16 words
A process according to claim 4 characterized in that the resin is loaded with copper ions.
Claim 12
Dependent Claim
19 words
A process according to claim 1 characterized in that the resin is a sulfonated divinyl benzene cross-linked polystyrene resin.
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) | 1979-09-07 | 1980-03-08 | 1980-09-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-09-07 | 1984-03-08 | 1984-09-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-09-07 | 1988-03-08 | 1988-09-07 | $7700.00 | Window Closed / Lapsed |