Patent US2538262A successfully refreshed from Google Patents.
US2538262A
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Method of purifying sulfuric acid alkylates
Assignee: Universal Oil Products Co
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Filing: 1947-11-28
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Granted: 1951-01-16
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Expires: 1967-11-28
Abstract
No abstract record available.
Inventors
- 👤 Maurice J Murray
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 19:57
CPC Classifications
C; C10; C10G; C10G33/00; C10G33/04; Y; Y10; Y10S; Y10S585/00; Y10S585/949; Y10S585/955
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
87 words
A PROCESS FOR REMOVING WATER-SOLUBLE SULFONIC ACIDS FROM ALKYLATES PRODUCED BY SULFURIC ACID ALKYLATION, WHICH COMPRISES CONTACTING THE ALKYLATE IN LIQUID FORM WITH A SUBSTANTIALLY AQUEOUS WASHING LIQUID COMPRISING A SOLVENT FOR SAID SULFONIC ACIDS BY INTRODUCING ONE OF SAID LIQUIDS INTO A BODY OF THE OTHER LIQUID IN THE FORM OF DROPLETS OF A SIZE GREATER THAN 0.1 MM. IN DIAMETER AND PASSING SAID DROPLETS THROUGH SAID BODY IN A VERTICAL DIRECTION, AND SEPARATING THE THUS CONTACTED LIQUIDS INTO AN ALKYLATE PHASE AND AN AQUEOUS PHASE.
Claim 2
Dependent Claim
87 words
A PROCESS FOR REMOVING WATER-SOLUBLE SULFONIC ACIDS FROM ALKYLATES PRODUCED BY SULFURIC ACID ALKYLATION, WHICH COMPRISES CONTACTING THE ALKYLATE IN LIQUID FORM WITH A SUBSTANTIALLY AQUEOUS WASHING LIQUID COMPRISING A SOLVENT FOR SAID SULFONIC ACIDS BY INTRODUCING ONE OF SAID LIQUIDS INTO A BODY OF THE OTHER LIQUID IN THE FORM OF DROPLETS OF A SIZE GREATER THAN 0.1 MM. IN DIAMETER AND PASSING SAID DROPLETS THROUGH SAID BODY IN A VERTICAL DIRECTION, AND SEPARATING THE THUS CONTACTED LIQUIDS INTO AN ALKYLATE PHASE AND AN AQUEOUS PHASE.
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) | 1954-01-15 | 1954-07-17 | 1955-01-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-01-15 | 1958-07-17 | 1959-01-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-01-15 | 1962-07-17 | 1963-01-16 | $7700.00 | Window Closed / Lapsed |