US3626666A
Expired / Lapsed
US
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Method and apparatus for fractional separation of mixtures
Assignee: Mobil Oil AS
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Filing: 1970-05-18
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Granted: 1971-12-14
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Expires: 1990-05-18
Abstract
Abstract THIS DEVELOPMENT PROVIDES A METHOD AND APPARATUS FOR IMPROVED FRACTIONAL SEPARATION OF MIXTURES, PARTICULARLY HYDROCARBONS, BY CONTACTING THE MIXTURE IN FLUID FORM WITH A BODY OF SEPARATORY MATERIAL, SUCH AS A BED OF SOLID ADSORBENT PARTICLES OR SOLID PARTICLES IMPREGNATED WITH A LIQUID SORBENT. THE SYSTEM IS USEFUL, FOR EXAMPLE IN SEPARATION OF ORGANIC COMPOUNDS WHICH HAVE CLOSELY SIMILARY BOILING POINTS. THE BODY OF ADSORBENT IS DISPOSED ALONG A COMPACT PATH WHEREIN ARE DISPOSED DIVERTING AND DIVIDING ELEMENTS OF SUCH FORM AND ARRANGEMENT THAT A SUBSTANTIALLY CONSTANT CROSS SECTION OF THE ADSORBENT BED IS MAINTAINED ALONG THE PATH OF CONTACT.
Inventors
- 👤 B M Drinkard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 18:32
CPC Classifications
C; C07; C07C; C07C7/00; C07C7/12; C07C7/13; C07C7/135; G; G01; G01N; G01N30/00; G01N30/02; G01N30/60; G01N30/6052; G01N30/6073; G01N2030/022; G01N2030/025; G01N30/26; G01N30/38; G01N2030/387; G01N30/62; G01N2030/621; G01N2030/625; G01N30/6004; G01N30/6017; G01N30/64; G01N30/66
Claims Analysis
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References Cited (Backward Citations)
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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) | 1974-12-13 | 1975-06-14 | 1975-12-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-12-13 | 1979-06-14 | 1979-12-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-12-13 | 1983-06-14 | 1983-12-14 | $7700.00 | Window Closed / Lapsed |