US4226977A
Expired / Lapsed
US
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Process for separating a ketose from an aldose by selective adsorption
Assignee: Honeywell UOP LLC
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Filing: 1976-05-27
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Granted: 1980-10-07
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Expires: 1996-05-27
Abstract
Abstract A process for separating a ketose from a feed mixture comprising a ketose and an aldose which process comprises contacting the mixture with an adsorbent comprising a X zeolite containing one or more selected cations at the exchangeable cationic sites thereby selectively adsorbing a ketose from the feed mixture and thereafter recovering the ketose. Preferably the ketose will be recovered by desorption from the adsorbent with a desorbent material.
Inventors
- 👤 Richard W. Neuzil
- 👤 James W. Priegnitz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 15:36
CPC Classifications
C; C07; C07H; C07H1/00; C07H1/06; C12; C12P; C12P19/00; C12P19/24; C13; C13K; C13K3/00
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
64 words
A process for separating a ketose from a mixture comprising a ketose and an aldose which process comprises contacting at adsorption conditions said mixture with an adsorbent comprising a X zeolite containing at exchangeable cationic sites a cation pair selected from the group consisting of both barium and potassium and both barium and strontium and selectively adsorbing said ketose and thereafter recovering said ketose.
Claim 2
Dependent Claim
64 words
A process for separating a ketose from a mixture comprising a ketose and an aldose which process comprises contacting at adsorption conditions said mixture with an adsorbent comprising a X zeolite containing at exchangeable cationic sites a cation pair selected from the group consisting of both barium and potassium and both barium and strontium and selectively adsorbing said ketose and thereafter recovering said ketose.
Claim 3
Dependent Claim
16 words
The process of claim 1 further characterized in that said cation pair is barium and potassium.
Claim 4
Dependent Claim
16 words
The process of claim 1 further characterized in that said cation pair is barium and strontium.
Claim 5
Dependent Claim
15 words
The process of claim 1 further characterized in that said ketose and aldose are hexoses.
Claim 6
Dependent Claim
18 words
The process of claim 4 further characterized in that said ketose is fructose and said aldose is glucose.
Claim 7
Dependent Claim
20 words
The process of claim 1 further characterized in that said ketose is recovered from said adsorbent by desorption with water.
References Cited (Backward Citations)
US3734974A
Cited
US4014711A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-10-07 | 1984-04-07 | 1984-10-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-10-07 | 1988-04-07 | 1988-10-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-10-07 | 1992-04-07 | 1992-10-07 | $7700.00 | Window Closed / Lapsed |