US2923728A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of reacting organic compounds with sulfur trioxide
Assignee: EIDP Inc
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Filing: 1957-11-19
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Granted: 1960-02-02
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Expires: 1977-11-19
Abstract
No abstract record available.
Inventors
- 👤 Falk Klaus
- 👤 Taplin Walter Renold
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:44
CPC Classifications
C; C07; C07C; C07C303/00; C07C303/02; C07C303/04; C07C303/06; C07C303/24
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
139 words
A PROCESS FOR SULFATING AND SULFONATING AN ORGANIC COMPOUND TAKEN FROM THE GROUP CONSISTING OF ALCOHOLS, OLEFINS, MONOCYCLIC AROMATIC HYDROCARBONS AND POLYCYCLIC AROMATIC HYDROCARBONS, IN WHICH PROCESS SULFUR TRIOXIDE IS REACTED WITH SAID ORGANIC COMPOUND BY CONTACTING SAID ORGANIC COMPOUND WITH A MIXTURE OF INERT GAS AND FROM 2-12% BY VOLUME OF THE GAS MIXTURE OF GASEOUS SULFUR TRIOXE, SAID PROCESS BEING CARRIED OUT BY ESTABLISHING TURBANNULAR FLOW OF SAID ORGANIC COMPOUND WITH ADDITIONAL INERT GAS AND INTRODUCING SAID MIXTURE OF INERT GAS AND SULFUR TRIOXIDE BY FEEDING SAID MIXTURE WITHIN AND CONCENTRIC TO SAID TURBANNULAR FLOWING ORGANIC COMPOUND AND BEYOND THE POINT OF FULL TURBANNULAR FLOW OF SAID ORGANIC COMPOUND, COOLING THE RESULTING REACTION MIXTURE WITH ROOM TEMPERATURE WATER IMMEDIATELY BEYOND THE POINT WHERE SAID SULFUR TRIOXIDE-INERT GAS MIXTURE CONTACTS AND REACTS WITH SAID TURBANNULAR FLOWING ORGANIC COMPOUND.
Claim 2
Dependent Claim
139 words
A PROCESS FOR SULFATING AND SULFONATING AN ORGANIC COMPOUND TAKEN FROM THE GROUP CONSISTING OF ALCOHOLS, OLEFINS, MONOCYCLIC AROMATIC HYDROCARBONS AND POLYCYCLIC AROMATIC HYDROCARBONS, IN WHICH PROCESS SULFUR TRIOXIDE IS REACTED WITH SAID ORGANIC COMPOUND BY CONTACTING SAID ORGANIC COMPOUND WITH A MIXTURE OF INERT GAS AND FROM 2-12% BY VOLUME OF THE GAS MIXTURE OF GASEOUS SULFUR TRIOXE, SAID PROCESS BEING CARRIED OUT BY ESTABLISHING TURBANNULAR FLOW OF SAID ORGANIC COMPOUND WITH ADDITIONAL INERT GAS AND INTRODUCING SAID MIXTURE OF INERT GAS AND SULFUR TRIOXIDE BY FEEDING SAID MIXTURE WITHIN AND CONCENTRIC TO SAID TURBANNULAR FLOWING ORGANIC COMPOUND AND BEYOND THE POINT OF FULL TURBANNULAR FLOW OF SAID ORGANIC COMPOUND, COOLING THE RESULTING REACTION MIXTURE WITH ROOM TEMPERATURE WATER IMMEDIATELY BEYOND THE POINT WHERE SAID SULFUR TRIOXIDE-INERT GAS MIXTURE CONTACTS AND REACTS WITH SAID TURBANNULAR FLOWING ORGANIC COMPOUND.
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) | 1963-02-01 | 1963-08-03 | 1964-02-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-02-01 | 1967-08-03 | 1968-02-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-02-01 | 1971-08-03 | 1972-02-02 | $7700.00 | Window Closed / Lapsed |