Patent US2820074A successfully refreshed from Google Patents.
US2820074A
Expired / Lapsed
US
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Alkylation process
Assignee: Universal Oil Products Co
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Filing: 1954-10-19
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Granted: 1958-01-14
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Expires: 1974-10-19
Abstract
No abstract record available.
Inventors
- 👤 Pines Herman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 10:53
CPC Classifications
C; C07; C07C; C07C9/00; C07C9/14; C07C9/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
79 words
A PROCESS FOR PRODUCING ALKYLATE WHICH COMPRISES CONTACTING A MIXTURE COMPRISING NORMAL BUTANE, ISOBUTANE AND BUTENE-1 WITH HYDROGEN CHLORIDE AT CONDITIONS TO REACT HYDROGEN CHLORIDE WITH SAID BUTENE-1 TO FORM BUTYL CHLORIDE, SEPARATING SAID BUTYL CHLORIDE FROM SAID NORMAL BUTANE AND SAID ISOBUTANE, DEHYDROHALOGENATING SAID BUTYL CHLORIDE AT DEHYDROHALOGENATING CONDITIONS TO REMOVE A HYDROGEN CHLORIDE MOLECULE FROM A BUTYL CHLORIDE MOLECULE, SEPARATING THE RESULTANT HYDROGEN CHLORIDE FROM THE RESULTANT BUTENE-2 AND SUBJECTING SAID BUTENE-2 AND SAID ISOBUTANE TO ALKYLATION.
Claim 2
Dependent Claim
79 words
A PROCESS FOR PRODUCING ALKYLATE WHICH COMPRISES CONTACTING A MIXTURE COMPRISING NORMAL BUTANE, ISOBUTANE AND BUTENE-1 WITH HYDROGEN CHLORIDE AT CONDITIONS TO REACT HYDROGEN CHLORIDE WITH SAID BUTENE-1 TO FORM BUTYL CHLORIDE, SEPARATING SAID BUTYL CHLORIDE FROM SAID NORMAL BUTANE AND SAID ISOBUTANE, DEHYDROHALOGENATING SAID BUTYL CHLORIDE AT DEHYDROHALOGENATING CONDITIONS TO REMOVE A HYDROGEN CHLORIDE MOLECULE FROM A BUTYL CHLORIDE MOLECULE, SEPARATING THE RESULTANT HYDROGEN CHLORIDE FROM THE RESULTANT BUTENE-2 AND SUBJECTING SAID BUTENE-2 AND SAID ISOBUTANE TO ALKYLATION.
References Cited (Backward Citations)
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US2379731A
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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) | 1961-01-13 | 1961-07-15 | 1962-01-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-01-13 | 1965-07-15 | 1966-01-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-01-13 | 1969-07-15 | 1970-01-14 | $7700.00 | Window Closed / Lapsed |