US3090707A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the purification and decolorization of pre-treated technical sugar solution
Assignee: SUGAR CHEMICAL CO ETS
•
Filing: 1959-09-15
•
Granted: 1963-05-21
•
Expires: 1979-09-15
Abstract
No abstract record available.
Inventors
- 👤 Moebes Erich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 08:43
CPC Classifications
C; C13; C13B; C13B20/00; C13B20/14; Y; Y10; Y10S; Y10S210/00; Y10S210/902; Y10S210/917
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
111 words
IN A PROCESS OF DEFECATING AND DECOLORIZING PRETREATED SURFACE SOLUTIONS, THE IMPROVEMENT WHICH COMPRISES ESTABLISHING ION EXCHANGE CONTACT BETWEEN SAID SOLUTION AND AN ANION EXCHANGE MATERIAL CHARGED WITH ANIONS SELECTED FROM THE GROUP CONSISTING OF CARBONATE AND SULFATE, WHEREBY AT LEAST A PORTION OF THE ANIONS IN THE SOLUTION IS REPLACED BY A MEMBER OF SAID ANION GROUP, ESTABLISHING ION EXCHANGE CONTACT BETWEEN SAID SOLUTION AND A CATION EXCHANGE MATERIAL CHARGED WITH AMMONIUM, WWHEREBY AT LEAST A PORTION OF THE CATIONS IN THE SOLUTION IS REPLACED BY AMMONIUM, PRECIPITATING THE ANIONS IN THE SOLUTION THEREAFTER WITH AN ALKALINE EARTH METAL COMPOUND AND REMOVING THE INSOLUBLE ALKALINE EARTH METAL SALTS THUS OBTAINED.
Claim 2
Dependent Claim
111 words
IN A PROCESS OF DEFECATING AND DECOLORIZING PRETREATED SURFACE SOLUTIONS, THE IMPROVEMENT WHICH COMPRISES ESTABLISHING ION EXCHANGE CONTACT BETWEEN SAID SOLUTION AND AN ANION EXCHANGE MATERIAL CHARGED WITH ANIONS SELECTED FROM THE GROUP CONSISTING OF CARBONATE AND SULFATE, WHEREBY AT LEAST A PORTION OF THE ANIONS IN THE SOLUTION IS REPLACED BY A MEMBER OF SAID ANION GROUP, ESTABLISHING ION EXCHANGE CONTACT BETWEEN SAID SOLUTION AND A CATION EXCHANGE MATERIAL CHARGED WITH AMMONIUM, WWHEREBY AT LEAST A PORTION OF THE CATIONS IN THE SOLUTION IS REPLACED BY AMMONIUM, PRECIPITATING THE ANIONS IN THE SOLUTION THEREAFTER WITH AN ALKALINE EARTH METAL COMPOUND AND REMOVING THE INSOLUBLE ALKALINE EARTH METAL SALTS THUS OBTAINED.
References Cited (Backward Citations)
US2560504A
Cited
US2666741A
Cited
US2785998A
Cited
US2892737A
Cited
US2812300A
Cited
US2988463A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-05-20 | 1966-11-19 | 1967-05-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-05-20 | 1970-11-19 | 1971-05-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-05-20 | 1974-11-19 | 1975-05-21 | $7700.00 | Window Closed / Lapsed |