US3021374A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Separation of alcohols
Assignee: Labofina SA
•
Filing: 1958-10-03
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Granted: 1962-02-13
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Expires: 1978-10-03
Abstract
No abstract record available.
Inventors
- 👤 Radzitzky Pierre De
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:31
CPC Classifications
B; B01; B01J; B01J39/00; B01J39/04; B01J39/05
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
148 words
A METHOD OF SEPARATING ALCOHOLS FROM ORGANIC MEDIUMS, COMPRISING THE STEPS OF SUBJECTING AN ORGANIC MEDIUM COMPRISING AT LEAST ONE ALCOHOL SELECTED FROM THE GROUP CONSISTING OF METHANOL, ETHANOL, PROPANOL, ISOPROPANOL, N-BUTANOL, SEC-BUTANOL, TER-BUTANOL, N-PENTANOL, ISO-PENTANOL, N-HEXANOL, ISO-HEXANOL, 2-ETHYLBUTANOL, CYCLOHEXANOL, HEPTANOL-3, N-OCTANOL-2, 2-ETHYLHEXANOL, NONANOL AND DODECANOL AND ALSO A SUBSTANCE SELECTED FROM THE GROUP CONSISTING OF SEBACIC ACID AND PHTHALIC ACID ESTERS OF SAID ALCOHOL AND BENZENE TO ABSORPTION BY A POLYSTYRENE CATIONIC ION EXCHANGE RESIN ACIDIFIED WITH A GROUP SELECTAED FROM THE CLASS CONSISTING OF SULFONIC, PHOSPHONIC, CARBOXYLIC AND PHENOLIC GROUPS AND CROSS-LINKED BY AN AGENT SELECTED FROM THE CLASS CONSISTING OF DIVINYL ACETYLENE, DIVINYL BENZENE AND METHYLALLY CHLORIDE THE ABSORPTIVE CAPACITY OF WHICH IS GREATER FOR SAID ALCOHOL THAN FOR THE OTHER COMPONENTS OF SAID ORGANIC MEDIUM, THEREBY SELECTIVE ABSORBING SAID SLCOHOL BY SAID RESIN; AND DESORBING SAID ALCOHOL FROM SAID RESIN, THEREBY OBTAINING SAID ALCOHOL.
Claim 2
Independent Claim
148 words
A METHOD OF SEPARATING ALCOHOLS FROM ORGANIC MEDIUMS, COMPRISING THE STEPS OF SUBJECTING AN ORGANIC MEDIUM COMPRISING AT LEAST ONE ALCOHOL SELECTED FROM THE GROUP CONSISTING OF METHANOL, ETHANOL, PROPANOL, ISOPROPANOL, N-BUTANOL, SEC-BUTANOL, TER-BUTANOL, N-PENTANOL, ISO-PENTANOL, N-HEXANOL, ISO-HEXANOL, 2-ETHYLBUTANOL, CYCLOHEXANOL, HEPTANOL-3, N-OCTANOL-2, 2-ETHYLHEXANOL, NONANOL AND DODECANOL AND ALSO A SUBSTANCE SELECTED FROM THE GROUP CONSISTING OF SEBACIC ACID AND PHTHALIC ACID ESTERS OF SAID ALCOHOL AND BENZENE TO ABSORPTION BY A POLYSTYRENE CATIONIC ION EXCHANGE RESIN ACIDIFIED WITH A GROUP SELECTAED FROM THE CLASS CONSISTING OF SULFONIC, PHOSPHONIC, CARBOXYLIC AND PHENOLIC GROUPS AND CROSS-LINKED BY AN AGENT SELECTED FROM THE CLASS CONSISTING OF DIVINYL ACETYLENE, DIVINYL BENZENE AND METHYLALLY CHLORIDE THE ABSORPTIVE CAPACITY OF WHICH IS GREATER FOR SAID ALCOHOL THAN FOR THE OTHER COMPONENTS OF SAID ORGANIC MEDIUM, THEREBY SELECTIVE ABSORBING SAID SLCOHOL BY SAID RESIN; AND DESORBING SAID ALCOHOL FROM SAID RESIN, THEREBY OBTAINING SAID ALCOHOL.
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) | 1965-02-12 | 1965-08-14 | 1966-02-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-02-12 | 1969-08-14 | 1970-02-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-02-12 | 1973-08-14 | 1974-02-13 | $7700.00 | Window Closed / Lapsed |