US3940972A
Expired / Lapsed
US
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Chromatographic separation of olefins
Assignee: Phillips Petroleum Co
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Filing: 1974-06-28
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Granted: 1976-03-02
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Expires: 1994-06-28
Abstract
Abstract A mixture of olefins is separated and analyzed by means of a chromatographic column which contains silver trifluoromethanesulfonate.
Inventors
- 👤 John R. Norell
- 👤 Lloyd E. Gardner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:32
CPC Classifications
B; B01; B01J; B01J20/00; B01J20/281; B01J20/292; B01J2220/00; B01J2220/50; B01J2220/54; Y; Y10; Y10T; Y10T436/00; Y10T436/21; Y10T436/214; Y10T436/216
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
58 words
The method of analyzing a mixture containing olefins which comprises introducing a sample of the mixture to be analyzed into a chromatographic column containing silver trifluoromethanesulfonate, passing a carrier fluid through the column to elute sequentially the olefin constituents of the sample, and measuring a property of the column effluent which is representative of changes in composition thereof.
Claim 2
Independent Claim
58 words
The method of analyzing a mixture containing olefins which comprises introducing a sample of the mixture to be analyzed into a chromatographic column containing silver trifluoromethanesulfonate, passing a carrier fluid through the column to elute sequentially the olefin constituents of the sample, and measuring a property of the column effluent which is representative of changes in composition thereof.
Claim 3
Dependent Claim
32 words
The method of claim 1 wherein the sample is introduced into a column containing (1) silver trifluormethanesulfonate supported on an inert solid particulate material and (2) a solvent forming a liquid phase.
Claim 4
Dependent Claim
28 words
The method of claim 2 wherein the silver trifluoromethanesulfonate comprises about 0.1 to about 20 weight percent of the total of the particulate material, solvent and silver trifluoromethanesulfonate.
Claim 5
Dependent Claim
15 words
The method of claim 2 wherein the solvent comprises ethylene glycol, benzyl cyanide or squalane.
Claim 6
Dependent Claim
12 words
The method of claim 4 wherein the particulate material is diatomaceous earth.
Claim 7
Dependent Claim
11 words
The method of claim 1 wherein the carrier fluid is helium.
Claim 8
Dependent Claim
23 words
The method of claim 1 wherein the sample is introduced into a column containing silver trifluoromethanesulfonate supported on an inert solid particulate material.
Claim 9
Independent Claim
39 words
The method of separating a mixture containing olefins which comprises introducing a volume of the mixture into a zone containing silver trifluoromethanesulfonate, and passing a carrier fluid through the zone to elute sequentially the olefin constituents of the mixture.
Claim 10
Independent Claim
39 words
The method of separating a mixture containing olefins which comprises introducing a volume of the mixture into a zone containing silver trifluoromethanesulfonate, and passing a carrier fluid through the zone to elute sequentially the olefin constituents of the mixture.
Claim 11
Dependent Claim
32 words
The method of claim 8 wherein the sample is introduced into a zone containing (1) silver trifluoromethanesulfonate supported on an inert solid particulate material and (2) a solvent forming a liquid phase.
Claim 12
Dependent Claim
31 words
A chromatographic column comprising a conduit having disposed therein (1) a mass of an inert solid particulate material having deposited thereon silver trifluoromethanesulfonate and (2) a solvent forming a liquid phase.
Claim 13
Dependent Claim
31 words
A chromatographic column comprising a conduit having disposed therein (1) a mass of an inert solid particulate material having deposited thereon silver trifluoromethanesulfonate and (2) a solvent forming a liquid phase.
Claim 14
Dependent Claim
15 words
The column of claim 10 wherein the solvent comprises ethylene glycol, benzyl cyanide or squalane.
Claim 15
Dependent Claim
12 words
The column of claim 11 wherein the particulate material is diatomaceous earth.
Claim 16
Dependent Claim
44 words
A composition adapted for use as packing in a chromatographic column comprising inert solid particulate material having deposited thereon silver trifluoromethanesulfonate and also having a liquid deposited thereon to form a liquid phase when the composition is used as packing in a chromatographic column.
Claim 17
Dependent Claim
44 words
A composition adapted for use as packing in a chromatographic column comprising inert solid particulate material having deposited thereon silver trifluoromethanesulfonate and also having a liquid deposited thereon to form a liquid phase when the composition is used as packing in a chromatographic column.
Claim 18
Independent Claim
58 words
The method of analyzing a mixture containing monoolefins which comprises introducing a sample of the mixture to be analyzed into a chromatographic column containing silver trifluoromethanesulfonate, passing a carrier fluid through the column to elute sequentially the monoolefin constituents of the sample, and measuring a property of the column effluent which is representative of changes in composition thereof.
Claim 19
Independent Claim
58 words
The method of analyzing a mixture containing monoolefins which comprises introducing a sample of the mixture to be analyzed into a chromatographic column containing silver trifluoromethanesulfonate, passing a carrier fluid through the column to elute sequentially the monoolefin constituents of the sample, and measuring a property of the column effluent which is representative of changes in composition thereof.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-03-02 | 1979-09-01 | 1980-03-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-03-02 | 1983-09-01 | 1984-03-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-03-02 | 1987-09-01 | 1988-03-02 | $7700.00 | Window Closed / Lapsed |