Patent US2704840A successfully refreshed from Google Patents.
US4492601A
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Process for clarifying and desalinating sugar cane syrup or molasses
Assignee: Asahi Kasei Corp
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Filing: 1982-10-15
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Granted: 1985-01-08
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Expires: 2002-10-15
Abstract
Abstract Inorganic oxy-acid and organic acid impurities are removed from raw cane sugar or molasses solutions by the steps of (1) admixing with the raw cane sugar syrup or molasses solution a water-soluble chloride of an alkaline earth metal ion which reacts with inorganic oxy-acid anions and radicals and with organic acids to form a water-insoluble precipitate of said oxy-acid anions and radicals and organic acids, (2) separating said precipitate from said solution while maintaining the Brix degree of the solution between more than 60% and less than 80%, (3) diluting the precipitate-free solution to a Brix of less than 55%, and (4) subjecting said diluted solution to an electrodialysis using cation exchange film and neutral film arranged in an alternating manner.
Inventors
- 👤 Seiken Nakasone
- 👤 Sadao Miyagi
- 👤 Takehiko Aragaki
- 👤 Yasusi Higa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 22:06
CPC Classifications
C; C13; C13B; C13B20/00; C13B20/18; C13B20/02
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
129 words
A process for clarifying and desalinating raw cane sugar syrup or molasses solutions containing inorganic oxy-acid and organic acid impurities therein, which comprises the steps of ( 1) admixing with the raw cane sugar syrup or molasses solution a water-soluble chloride of an alkaline earth metal ion which reacts with inorganic oxy-acid anions and radicals and with organic acids to form a water-insoluble precipitate of said oxy-acid anions and radicals and organic acids, (2) separating said precipitate from said solution while maintaining the Brix degree of the solution between more than 60% and less than 80%, (3) diluting the precipitate-free solution to a Brix of less than 55%, and (4) subjecting said diluted solution to an electrodialysis using cation exchange film and neutral film arranged in an alternating manner.
Claim 2
Dependent Claim
129 words
A process for clarifying and desalinating raw cane sugar syrup or molasses solutions containing inorganic oxy-acid and organic acid impurities therein, which comprises the steps of ( 1) admixing with the raw cane sugar syrup or molasses solution a water-soluble chloride of an alkaline earth metal ion which reacts with inorganic oxy-acid anions and radicals and with organic acids to form a water-insoluble precipitate of said oxy-acid anions and radicals and organic acids, (2) separating said precipitate from said solution while maintaining the Brix degree of the solution between more than 60% and less than 80%, (3) diluting the precipitate-free solution to a Brix of less than 55%, and (4) subjecting said diluted solution to an electrodialysis using cation exchange film and neutral film arranged in an alternating manner.
Claim 3
Dependent Claim
38 words
The process of claim 1 wherein said diluted solution before being subjected to electrodialysis is heated, treated with an additional amount of one of said water-soluble chlorides to precipitate any unremoved impurities, and any resultant precipitate is separated.
Claim 4
Dependent Claim
30 words
The process of claim 1 wherein said diluted solution before being subjected to electrodialysis is heated, treated with a finely divided absorbent for organic impurities and said absorbent is separated.
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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) | 1988-01-08 | 1988-07-09 | 1989-01-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-01-08 | 1992-07-09 | 1993-01-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-01-08 | 1996-07-09 | 1997-01-08 | $7700.00 | Window Closed / Lapsed |