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US3718560A Expired / Lapsed US ⏱️ 0.0 years remaining

Process for electrodialysis of sugar solutions

Assignee: Asahi Kasei Corp
•
Filing: 1972-05-30
•
Granted: 1973-02-27
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Expires: 1992-05-30
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Abstract

Abstract A DESALINATION PROCESS FOR THE REMOVAL OF SALTS FROM SUGAR SOLUTIONS BY ELECTRODIALYSIS IN A CELL HAVING IONPERMEABLE MEMBRANES ALTERNATIVELY DISPOSED BETWEEN THE ELECTRODES BY CONTACTING THE SUGAR SOLUTION WITH THE ALTERNATELY DISPOSED ION-PERMEABLE MEMBRANES COMPRISING HAVING AN ANION EXCHANGE MEMBRANE AN ION-PERMEABLE MEMBRANE WITH AN ION EXCHANGE CAPACITY OF LESS THAN ABOUT 0.3 MILLIEQUIVALENT/GRAM OF DRY MEMBRANE AND HAVING AS THE CATION EXCHANGE MEMBRANE AN ION-PERMEABLE MEMBRANE HAVING CATION PERMSELECTIVITY. THE DESALINATION PROCESS CAN BE ADVANTAGEOUSLY USED IN SUGAR REFINING WITH ADDITIONAL SUGAR REFINING TECHNIQUES, SUCH AS ADSORPTION OR CARBONATION. D R A W I N G

Inventors

  • 👤 M Sugiyama
  • 👤 A Nakamura
  • 👤 T Yamauchi
  • 👤 Y Takatori
  • 👤 R Touyama
  • 👤 M Kato
  • 👤 Y Nakashiba

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-09 16:04
CPC Classifications
B; B01; B01D; B01D61/00; B01D61/42; B01D61/44; B01D71/00; B01D71/06; B01D71/38; B01D71/381; B01D71/383; C; C13; C13B; C13B20/00; C13B20/18; B01D2311/00; B01D2311/26; B01D2311/2626

Claims Analysis

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References Cited (Backward Citations)

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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) 1976-02-27 1976-08-28 1977-02-27 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1980-02-27 1980-08-28 1981-02-27 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1984-02-27 1984-08-28 1985-02-27 $7700.00 Window Closed / Lapsed

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