Patent US4333770A successfully refreshed from Google Patents.
US4333770A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Extraction of sucrose from molasses
Assignee: Honeywell UOP LLC
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Filing: 1980-09-08
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Granted: 1982-06-08
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Expires: 2000-09-08
Abstract
Abstract Various sugars and particularly sucrose may be separated from mixtures of sugars including glucose, fructose, raffinose, etc. by treating an aqueous solution of the sugar source containing these sugars with an adsorbent which will selectively adsorb sucrose thereon. Thereafter the sucrose may be desorbed from the adsorbent by treatment with a desorbent material. In the process of the present invention the adsorbent will comprise a shaped replicate of a particle aggregate comprising a carbonaceous pyropolymer containing recurring units of at least carbon and hydrogen atoms while the desorbent material will comprise an aqueous alcoholic solution. The preferred alcohols contain methanol and ethanol and will be present in the aqueous alcoholic solution in an amount in the range of from about 10% to about 50% by weight.
Inventors
- 👤 Richard W. Neuzil
- 👤 Richard L. Fergin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 06:19
CPC Classifications
C; C13; C13B; C13B35/00; C13B35/08; B; B01; B01D; B01D15/00; B01D15/08; C13B20/00; C13B20/14; C13B20/148; C13K; C13K13/00; C13K13/007; B01D15/10; B01D15/16; B01D15/161; B01D15/42; B01D15/424; B01D15/426
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
130 words
A process for separating sucrose from an aqueous mixture of a sugar source containing sucrose and at least one other sugar which comprises the steps of: (a) contacting said mixture at adsorbent conditions with an adsorbent comprising a shaped replication of inorganic support particle aggregates, said adsorbent consisting of a carbonaceous pyropolymer containing at least carbon and hydrogen atoms thereby selectively adsorbing said sucrose thereon; (b) separating from the adsorbent a raffinate stream comprising at least one other sugar; (c) contacting said adsorbent at desportion conditions with a desorbent material consisting essentially of an aqueous methanolic solution having from about 10% to about 50% methanol by weight to effect desorption of said sucrose from said adsorbent, and (d) separating and recovering from said adsorbent an extraction stream comprising said sucrose.
Claim 2
Dependent Claim
130 words
A process for separating sucrose from an aqueous mixture of a sugar source containing sucrose and at least one other sugar which comprises the steps of: (a) contacting said mixture at adsorbent conditions with an adsorbent comprising a shaped replication of inorganic support particle aggregates, said adsorbent consisting of a carbonaceous pyropolymer containing at least carbon and hydrogen atoms thereby selectively adsorbing said sucrose thereon; (b) separating from the adsorbent a raffinate stream comprising at least one other sugar; (c) contacting said adsorbent at desportion conditions with a desorbent material consisting essentially of an aqueous methanolic solution having from about 10% to about 50% methanol by weight to effect desorption of said sucrose from said adsorbent, and (d) separating and recovering from said adsorbent an extraction stream comprising said sucrose.
Claim 3
Dependent Claim
43 words
The process as set forth in claim 1 in which said adsorbent and desorption conditions include a temperature in the range of from about 20° to about 200° C. and a pressure in the range of from about atmospheric to about 500 psig.
Claim 4
Dependent Claim
18 words
The process as set forth in claim 1 in which said other sugars comprise glucose, fructose, and raffinose.
Claim 5
Dependent Claim
15 words
The process as set forth in claim 1 in which said sugar source is molasses.
References Cited (Backward Citations)
US2985589A
Cited
US3040777A
Cited
US3214293A
Cited
US3422848A
Cited
US3720626A
Cited
US3706812A
Cited
US4064043A
Cited
US3935006A
Cited
US4101338A
Cited
US4147624A
Cited
US4051079A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-06-07 | 1985-12-07 | 1986-06-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-06-07 | 1989-12-07 | 1990-06-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-06-07 | 1993-12-07 | 1994-06-08 | $7700.00 | Window Closed / Lapsed |