US3078641A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Separation of sulfur compounds from vapor mixtures
Assignee: Union Carbide Corp
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Filing: 1959-12-31
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Granted: 1963-02-26
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Expires: 1979-12-31
Abstract
No abstract record available.
Inventors
- 👤 Robert M Milton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 16:26
CPC Classifications
B; B01; B01D; B01D53/00; B01D53/02; B01D53/04; C; C01; C01B; C01B3/00; C01B3/50; C01B3/56; C07; C07C; C07C7/00; C07C7/12; C07C7/13; B01D2253/00; B01D2253/10; B01D2253/106; B01D2253/108; B01D2257/00; B01D2257/30; B01D2257/304; B01D2259/00; B01D2259/40; B01D2259/40083; B01D2259/40088; C01B2203/00; C01B2203/04; C01B2203/042; C01B2203/0465; C01B2203/0485
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
70 words
A PROCESS FOR THE SEPARATION OF HYDROGEN SULFIDE FROM A VAPOR MIXTURE THEREOF WITH AT LEAST ONE GAS SELECTED FROM THE GROUP CONSISTING OF HYDROGEN AND ALKANES CONTAINING LESS THAN SIX CARBON ATOMS WHICH COMPRISES INTIMATELY CONTACTING SAID VAPOR MIXTURE WITH CRYSTALLINE, SYNTHETIC, AT LEAST PARTIALLY DEGYDRATED ZEOLITE X WHEREBY SAID HYDROGEN SULFIDE IS PREFERENTIALLY ABSORBED FROM SAID MIXTURE, AND SEPARATING THE HYDROGEN SULFIDE-DEPLETED VAPOR MIXTURE FROM SAID ZEOLITE X.
Claim 2
Dependent Claim
70 words
A PROCESS FOR THE SEPARATION OF HYDROGEN SULFIDE FROM A VAPOR MIXTURE THEREOF WITH AT LEAST ONE GAS SELECTED FROM THE GROUP CONSISTING OF HYDROGEN AND ALKANES CONTAINING LESS THAN SIX CARBON ATOMS WHICH COMPRISES INTIMATELY CONTACTING SAID VAPOR MIXTURE WITH CRYSTALLINE, SYNTHETIC, AT LEAST PARTIALLY DEGYDRATED ZEOLITE X WHEREBY SAID HYDROGEN SULFIDE IS PREFERENTIALLY ABSORBED FROM SAID MIXTURE, AND SEPARATING THE HYDROGEN SULFIDE-DEPLETED VAPOR MIXTURE FROM SAID ZEOLITE X.
References Cited (Backward Citations)
US2270058A
Cited
US2882244A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-02-25 | 1966-08-27 | 1967-02-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-02-25 | 1970-08-27 | 1971-02-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-02-25 | 1974-08-27 | 1975-02-26 | $7700.00 | Window Closed / Lapsed |