Patent US3317593A successfully refreshed from Google Patents.
US3317593A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the hydrolysis of alkanol derivatives
Assignee: Wacker Chemie AG
•
Filing: 1964-03-31
•
Granted: 1967-05-02
•
Expires: 1984-03-31
Abstract
No abstract record available.
Inventors
- 👤 Enk Eduard
- 👤 Spes Hellmuth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 15:23
CPC Classifications
B; B01; B01J; B01J31/00; B01J31/02; B01J31/06; B01J31/08; C; C07; C07C; C07C29/00; C07C29/09; C07C29/095; C07C29/10; C07C45/00; C07C45/51; C07C45/511; C07C45/515; C07C45/54; C07C51/00; C07C51/09; Y; Y02; Y02P; Y02P20/00; Y02P20/50; Y02P20/52
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
139 words
PROCESS FOR THE HYDROLYSIS OF ALKANOL DERIVATIVES SELECTED FROMTHE GROUP CONSISTING OF ESTERS, ACETALS AND KETALS IN THE PRESENCE OF A CATION EXCHANGER, WHICH COMPRISES FLOWING THE HYDROLYTE AND WATER DOWNWARDLY THROUGH A CATION EXCHANGER IN A REACTION ZONE AT A TEMPERATURE SUFFICIENT TO VAPORIZE SAID HYDROLYTE IN SAID REACTION ZONE, FLOWING THE WATER-CONTAINING LIQUID HYDROLYSATE FROM SAID REACTION ZONE DOWNWARLDY THROUGH AN EXTRACTION ZONE, RUNNING OFF THE SUBSTANTIALLY HYDROLYTEFREE LIQUID HYDROLYSIS PLRODUCTS FROM SAID EXTRACTION ZONE, AND SEPARATING THE LIQUID SO DISCHARGED FROM SAID EXTRACTION ZONE INTO ITS COMPONENTS TO OBTAIN THE INDIVIDUAL HYDROLYSIS PRODUCTS, SAID PROCESS BEING CHARACTERIZED BY THE FACT THAT THE CONTENTS OF SAID EXTRACTION ZONE ARE HEATED ABOVE THE VAPORIZATION TEMPERATURE OF SAID HYDROLYTE SO THAT SIAD HYDROLYTE REMAINS IN THE VAPOR PHASE AND RISES IN SAID REACTION ZONE UNTIL THE RECTION IS COMPLETED.
Claim 2
Dependent Claim
139 words
PROCESS FOR THE HYDROLYSIS OF ALKANOL DERIVATIVES SELECTED FROMTHE GROUP CONSISTING OF ESTERS, ACETALS AND KETALS IN THE PRESENCE OF A CATION EXCHANGER, WHICH COMPRISES FLOWING THE HYDROLYTE AND WATER DOWNWARDLY THROUGH A CATION EXCHANGER IN A REACTION ZONE AT A TEMPERATURE SUFFICIENT TO VAPORIZE SAID HYDROLYTE IN SAID REACTION ZONE, FLOWING THE WATER-CONTAINING LIQUID HYDROLYSATE FROM SAID REACTION ZONE DOWNWARLDY THROUGH AN EXTRACTION ZONE, RUNNING OFF THE SUBSTANTIALLY HYDROLYTEFREE LIQUID HYDROLYSIS PLRODUCTS FROM SAID EXTRACTION ZONE, AND SEPARATING THE LIQUID SO DISCHARGED FROM SAID EXTRACTION ZONE INTO ITS COMPONENTS TO OBTAIN THE INDIVIDUAL HYDROLYSIS PRODUCTS, SAID PROCESS BEING CHARACTERIZED BY THE FACT THAT THE CONTENTS OF SAID EXTRACTION ZONE ARE HEATED ABOVE THE VAPORIZATION TEMPERATURE OF SAID HYDROLYTE SO THAT SIAD HYDROLYTE REMAINS IN THE VAPOR PHASE AND RISES IN SAID REACTION ZONE UNTIL THE RECTION IS COMPLETED.
References Cited (Backward Citations)
US2936321A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-05-01 | 1970-10-31 | 1971-05-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-05-01 | 1974-10-31 | 1975-05-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-05-01 | 1978-10-31 | 1979-05-02 | $7700.00 | Window Closed / Lapsed |