US4133696A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Separation of sugars from mixtures
Assignee: Imperial Chemical Industries Ltd
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Filing: 1977-05-24
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Granted: 1979-01-09
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Expires: 1997-05-24
Abstract
Abstract A process for the treatment of a mixture comprising one or more sugars and oxyanions to separate a sugar or a sugar mixture therefrom wherein the ion-containing mixture is treated with an ion-exchange resin. The process may comprise treatment of the ion-containing mixture with a cationic exchange resin having thereon monovalent counterions or a mixture of divalent counterions and hydrogen ions or with first a cationic exchange resin having thereon hydrogen ions and then second with an anionic exchange resin having thereon monovalent or divalent counterions. The process is very useful in the production of fructose-containing syrups.
Inventors
- 👤 Sidney A. Barker
- 👤 Peter J. Somers
- 👤 Robin R. Woodbury
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 22:46
CPC Classifications
C; C13; C13K; C13K3/00
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
126 words
A process for the separation of a sugar or a mixture of sugars from an ion-containing mixture comprising said sugar or mixture of sugars and oxyanions, said ion-containing mixture produced in a process for converting an aldose to a ketose in the presence of oxyanions, which comprises a step wherein the ion-containing mixture is contacted with: (A) a cationic exchange resin having thereon divalent cationic counterions admixed with hydrogen ions; or (B) a cationic exchange resin having thereon monovalent cationic counterions of which hydrogen ions, when present, form a minor proportion; or (C) first with a cationic exchange resin having thereon counterions all or a major proportion of which are hydrogen ions and second with an anionic exchange resin having thereon monovalent or divalent anionic counterions.
Claim 2
Dependent Claim
126 words
A process for the separation of a sugar or a mixture of sugars from an ion-containing mixture comprising said sugar or mixture of sugars and oxyanions, said ion-containing mixture produced in a process for converting an aldose to a ketose in the presence of oxyanions, which comprises a step wherein the ion-containing mixture is contacted with: (A) a cationic exchange resin having thereon divalent cationic counterions admixed with hydrogen ions; or (B) a cationic exchange resin having thereon monovalent cationic counterions of which hydrogen ions, when present, form a minor proportion; or (C) first with a cationic exchange resin having thereon counterions all or a major proportion of which are hydrogen ions and second with an anionic exchange resin having thereon monovalent or divalent anionic counterions.
Claim 3
Dependent Claim
76 words
A process for the separation of a sugar or a mixture of sugars from an ion-containing mixture comprising said sugar or mixture of sugars and oxyanions, said ion-containing mixture produced in a process for converting an aldose to a ketose in the presence of oxyanions, which comprises a step in which the ion-containing mixture is treated with a cationic resin having thereon cations chosen from divalent cationic counterions admixed with hydrogen ions or monovalent cationic counterions.
Claim 4
Dependent Claim
76 words
A process for the separation of a sugar or a mixture of sugars from an ion-containing mixture comprising said sugar or mixture of sugars and oxyanions, said ion-containing mixture produced in a process for converting an aldose to a ketose in the presence of oxyanions, which comprises a step in which the ion-containing mixture is treated with a cationic resin having thereon cations chosen from divalent cationic counterions admixed with hydrogen ions or monovalent cationic counterions.
Claim 5
Dependent Claim
76 words
A process for the separation of a sugar or mixture of sugars from an ion-containing mixture comprising said sugar or mixture of sugars and oxyanions, said ion-containing mixture produced in a process for converting an aldose to a ketose in the presence of oxyanions, which comprises a step wherein the ion-containing mixture is treated first with a cationic exchange resin having thereon hydrogen ions and second with an anionic exchange resin having thereon carboxylic acid anions.
Claim 6
Dependent Claim
76 words
A process for the separation of a sugar or mixture of sugars from an ion-containing mixture comprising said sugar or mixture of sugars and oxyanions, said ion-containing mixture produced in a process for converting an aldose to a ketose in the presence of oxyanions, which comprises a step wherein the ion-containing mixture is treated first with a cationic exchange resin having thereon hydrogen ions and second with an anionic exchange resin having thereon carboxylic acid anions.
Claim 7
Dependent Claim
24 words
A process according to claim 1 wherein glucose, fructose or a mixture thereof is separated from an ion-containing mixture comprising glucose, fructose and oxyanions.
Claim 8
Dependent Claim
13 words
A process according to claim 1 wherein the oxyanions contain boron or germanium.
Claim 9
Dependent Claim
27 words
A process according to claim 2 wherein the cationic exchange resin is a nuclearly carboxylated or a nuclearly sulphonated cationic exchange resin and comprises a cross-linked matrix.
Claim 10
Dependent Claim
28 words
A process according to claim 2 wherein the cationic exchange resin has on it calcium ions admixed with hydrogen ions or has on it sodium ions as counterions.
Claim 11
Dependent Claim
20 words
A process according to claim 3 wherein the anionic exchange resin is a quaternary ammonium resin having a cross-linked matrix.
Claim 12
Dependent Claim
17 words
A process according to claim 3 wherein the carboxylic acid anions are formate, acetate or succinate ions.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-01-08 | 1982-07-10 | 1983-01-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-01-08 | 1986-07-10 | 1987-01-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-01-08 | 1990-07-10 | 1991-01-09 | $7700.00 | Window Closed / Lapsed |