ES2104334T3 - Recuperacion de eritorbatos de soluciones fotograficas. - Google Patents

Recuperacion de eritorbatos de soluciones fotograficas.

Info

Publication number
ES2104334T3
ES2104334T3 ES94901296T ES94901296T ES2104334T3 ES 2104334 T3 ES2104334 T3 ES 2104334T3 ES 94901296 T ES94901296 T ES 94901296T ES 94901296 T ES94901296 T ES 94901296T ES 2104334 T3 ES2104334 T3 ES 2104334T3
Authority
ES
Spain
Prior art keywords
eritorbates
recovery
photographic
photographic solutions
passing
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Lifetime
Application number
ES94901296T
Other languages
English (en)
Inventor
Alvin John O'donnell
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Danisco Finland Oy
Original Assignee
Cultor Oyj
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 Oyj filed Critical Cultor Oyj
Application granted granted Critical
Publication of ES2104334T3 publication Critical patent/ES2104334T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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)

Abstract

EL PRESENTE INVENTO SE REFIERE A UN METODO PARA LA RECUPERACION DE ERITORBATOS DE LAS SOLUCIONES FOTOGRAFICAS. EN EL METODO EXPUESSTO, LA SOLUCION FOTOGRAFICA ES PRIMERO ACIDIFICADA PASANDOLA SOBRE UNA RESINA ACIDICA DE CATION CAMBIADO, PASANDO LA SOLUCION RESULTANTE SOBRE UNA RESINA BASICA POBRE DE ANION CAMBIADO.
ES94901296T 1992-12-30 1993-11-12 Recuperacion de eritorbatos de soluciones fotograficas. Expired - Lifetime ES2104334T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US99869792A 1992-12-30 1992-12-30

Publications (1)

Publication Number Publication Date
ES2104334T3 true ES2104334T3 (es) 1997-10-01

Family

ID=25545480

Family Applications (1)

Application Number Title Priority Date Filing Date
ES94901296T Expired - Lifetime ES2104334T3 (es) 1992-12-30 1993-11-12 Recuperacion de eritorbatos de soluciones fotograficas.

Country Status (9)

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

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
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
CA2035049C (en) * 1990-01-31 1996-09-17 Audenried W. Knapp Non-toxic photographic developer composition

Also Published As

Publication number Publication date
DK0677181T3 (da) 1997-12-08
EP0677181A1 (en) 1995-10-18
US5457214A (en) 1995-10-10
JP2820245B2 (ja) 1998-11-05
DE69310769D1 (de) 1997-06-19
DE69310769T2 (de) 1998-01-22
JPH07509791A (ja) 1995-10-26
EP0677181B1 (en) 1997-05-14
ATE153146T1 (de) 1997-05-15
GR3024279T3 (en) 1997-10-31
WO1994016362A1 (en) 1994-07-21

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