DK0677181T3 - Genvinding af erythorbater fra fotografiske opløsninger - Google Patents

Genvinding af erythorbater fra fotografiske opløsninger

Info

Publication number
DK0677181T3
DK0677181T3 DK94901296.7T DK94901296T DK0677181T3 DK 0677181 T3 DK0677181 T3 DK 0677181T3 DK 94901296 T DK94901296 T DK 94901296T DK 0677181 T3 DK0677181 T3 DK 0677181T3
Authority
DK
Denmark
Prior art keywords
recovery
erythorbate
photographic
photographic solutions
exchange resin
Prior art date
Application number
DK94901296.7T
Other languages
Danish (da)
English (en)
Inventor
Alvin John Odonnell
Original Assignee
Cultor Oy
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Cultor Oy filed Critical Cultor Oy
Application granted granted Critical
Publication of DK0677181T3 publication Critical patent/DK0677181T3/da

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
    • G03C5/00—Photographic processes or agents therefor; Regeneration of such processing agents
    • G03C5/26—Processes using silver-salt-containing photosensitive materials or agents therefor
    • G03C5/29—Development processes or agents therefor
    • G03C5/31—Regeneration; Replenishers

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Medicinal Preparation (AREA)
  • Silver Salt Photography Or Processing Solution Therefor (AREA)
DK94901296.7T 1992-12-30 1993-11-12 Genvinding af erythorbater fra fotografiske opløsninger DK0677181T3 (da)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US99869792A 1992-12-30 1992-12-30
PCT/US1993/010694 WO1994016362A1 (en) 1992-12-30 1993-11-12 Recovery of erythorbates from photographic solutions

Publications (1)

Publication Number Publication Date
DK0677181T3 true DK0677181T3 (da) 1997-12-08

Family

ID=25545480

Family Applications (1)

Application Number Title Priority Date Filing Date
DK94901296.7T DK0677181T3 (da) 1992-12-30 1993-11-12 Genvinding af erythorbater fra fotografiske opløsninger

Country Status (9)

Country Link
US (1) US5457214A (de)
EP (1) EP0677181B1 (de)
JP (1) JP2820245B2 (de)
AT (1) ATE153146T1 (de)
DE (1) DE69310769T2 (de)
DK (1) DK0677181T3 (de)
ES (1) ES2104334T3 (de)
GR (1) GR3024279T3 (de)
WO (1) WO1994016362A1 (de)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08176133A (ja) * 1994-12-26 1996-07-09 Takeda Chem Ind Ltd Ｌ−アスコルビン酸の精製法
FR2752627B1 (fr) * 1996-08-21 2003-07-25 Kodak Pathe Procede de traitement d'un revelateur saisonne a l'acide ascorbique
FR2754360A1 (fr) * 1996-10-08 1998-04-10 Eastman Kodak Co Procede de renouvellement d'un revelateur a l'acide ascorbique
IL119731A0 (en) * 1996-12-01 1997-03-18 Yissum Res Dev Co A process for the production of erythorbic acid
CN115583926B (zh) * 2022-11-04 2024-03-19 新拓洋生物工程有限公司 利用母液离心回收d-异抗坏血酸钠和d-异抗坏血酸的方法

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2517276A (en) * 1945-05-16 1950-08-01 Merck & Co Inc Process for the purification of 1-ascorbic acid
US4159990A (en) * 1976-12-10 1979-07-03 Pfizer Inc. Reduction of 2,5-diketogluconic acid
US4212988A (en) * 1979-03-26 1980-07-15 Pfizer Inc. Preparation of 2-ketogulonic acid
DK307386A (da) * 1985-07-05 1987-01-06 Takeda Chemical Industries Ltd Fremgangsmaade til rensning af l-ascorbinsyre
GB8925311D0 (en) * 1989-11-09 1989-12-28 Kodak Ltd Low effluent replenishment system for colour negative developers
CA2035049C (en) * 1990-01-31 1996-09-17 Audenried W. Knapp Non-toxic photographic developer composition
US5278035A (en) * 1990-01-31 1994-01-11 Knapp Audenried W Non-toxic photographic developer composition for processing x-ray films in automatic film processors

Also Published As

Publication number Publication date
JP2820245B2 (ja) 1998-11-05
EP0677181A1 (de) 1995-10-18
WO1994016362A1 (en) 1994-07-21
JPH07509791A (ja) 1995-10-26
ATE153146T1 (de) 1997-05-15
EP0677181B1 (de) 1997-05-14
ES2104334T3 (es) 1997-10-01
GR3024279T3 (en) 1997-10-31
DE69310769D1 (de) 1997-06-19
US5457214A (en) 1995-10-10
DE69310769T2 (de) 1998-01-22

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