US3068304A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Separation of acetylenic impurities using a cuprous and cupric chloride solution
Assignee: MW Kellogg Co
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Filing: 1960-06-10
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Granted: 1962-12-11
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Expires: 1980-06-10
Abstract
No abstract record available.
Inventors
- 👤 Marshall L Spector
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 16:11
CPC Classifications
C; C07; C07C; C07C7/00; C07C7/148; C07C7/177
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
92 words
A PROCESS FOR SEPERATING AN ACETYLENE HAVING THE GENERAL COMPOSITION RC=CH IN WHICH R IS SELECTED FROM THE GROUP CONSISTING OF HYDROGEN AND ALKYL GROUPS HAVING FROM 1 TO 4 CARBON ATOMS FROM A HYDROCARBON MIXTURE CONTAINING THE SAME WHICH COMPRISES CONTACTING SAID MIXTURE WITH A SOLUTION COMPRISING CUPROUS CHLORIDE AND SUPRIC CHLORIDE IN THE PRESENCE OF AN OXIDIZING AGENT EFFECTIVE TO MAINTAIN A SYSTEM HAVING A PH BETWEEN ABOUT 1.0 AND ABOUT 4.5 TO SELECTIVELY POLYMERIZE THE ACETYLENE AND SEPARATING HYDROCARBON FROM THE POLYMERIZED ACETYLENE AS A PRODUCT OF THE PROCESS.
Claim 2
Dependent Claim
92 words
A PROCESS FOR SEPERATING AN ACETYLENE HAVING THE GENERAL COMPOSITION RC=CH IN WHICH R IS SELECTED FROM THE GROUP CONSISTING OF HYDROGEN AND ALKYL GROUPS HAVING FROM 1 TO 4 CARBON ATOMS FROM A HYDROCARBON MIXTURE CONTAINING THE SAME WHICH COMPRISES CONTACTING SAID MIXTURE WITH A SOLUTION COMPRISING CUPROUS CHLORIDE AND SUPRIC CHLORIDE IN THE PRESENCE OF AN OXIDIZING AGENT EFFECTIVE TO MAINTAIN A SYSTEM HAVING A PH BETWEEN ABOUT 1.0 AND ABOUT 4.5 TO SELECTIVELY POLYMERIZE THE ACETYLENE AND SEPARATING HYDROCARBON FROM THE POLYMERIZED ACETYLENE AS A PRODUCT OF THE PROCESS.
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) | 1965-12-10 | 1966-06-11 | 1966-12-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-12-10 | 1970-06-11 | 1970-12-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-12-10 | 1974-06-11 | 1974-12-11 | $7700.00 | Window Closed / Lapsed |