US4014711A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Separation of fructose from a mixture of sugars
Assignee: Toray Industries Inc
•
Filing: 1976-02-18
•
Granted: 1977-03-29
•
Expires: 1996-02-18
Abstract
Abstract Fructose is effectively separated from a mixture of sugars by contacting an aqueous solution of a mixture of sugars with crystalline alumino-silicate.
Inventors
- 👤 Hiroyuki Odawara
- 👤 Yoshio Noguchi
- 👤 Masaji Ohno
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:39
CPC Classifications
C; C13; C13B; C13B20/00; C13B20/14; C13B20/148; C13K; C13K11/00; C13K3/00
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
53 words
A method for separation of fructose from a mixture of sugars essentially containing fructose and glucose, which method comprises contacting an aqueous solution of said mixture of sugars with crystalline alumino-silicate having an average pore diameter greater than about 5 A, desorbing the adsorbed sugars with water and separating the fructose-rich fraction obtained.
Claim 2
Independent Claim
53 words
A method for separation of fructose from a mixture of sugars essentially containing fructose and glucose, which method comprises contacting an aqueous solution of said mixture of sugars with crystalline alumino-silicate having an average pore diameter greater than about 5 A, desorbing the adsorbed sugars with water and separating the fructose-rich fraction obtained.
Claim 3
Dependent Claim
24 words
The method according to claim 1, in which said crystalline alumino-silicate is faujasite type selected from the group consisting of X, Y and L.
Claim 4
Dependent Claim
13 words
The method according to claim 1, in which said crystalline alumino-silicate is mordenite.
Claim 5
Dependent Claim
37 words
The method according to claim 1, in which said crystalline alumino-silicate has at least one metal cation selected from the group consisting of alkali metal, alkali earth metal, copper, silver, zinc, cadmium, aluminum, lead, iron and cobalt.
Claim 6
Dependent Claim
25 words
The method according to claim 1, in which the total sugar concentration of said feed aqueous solution is between about 10 and 80 weight percent.
Claim 7
Dependent Claim
24 words
The method according to claim 1, in which the separation of fructose is carried out at a temperature of about 10° to 60° C.
Claim 8
Dependent Claim
22 words
The method according to claim 1, in which said mixture of sugars is a high fructose syrup obtained from isomerization of glucose.
Claim 9
Dependent Claim
18 words
The method according to claim 1, in which said mixture of sugars is obtained by hydrolysis of sucrose.
Claim 10
Dependent Claim
20 words
The method according to claim 1, wherein said average pore diameter is in the range of about 5 to 15A.
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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) | 1980-03-28 | 1980-09-27 | 1981-03-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-03-28 | 1984-09-27 | 1985-03-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-03-28 | 1988-09-27 | 1989-03-29 | $7700.00 | Window Closed / Lapsed |