ATE153146T1 - Rücktgewinnung von erythorbaten aus photographischen lösungen - Google Patents

Rücktgewinnung von erythorbaten aus photographischen lösungen

Info

Publication number: ATE153146T1
Authority: AT; Austria
Prior art keywords: recovery; erythorbate; photographic; photographic solutions; exchange resin
Prior art date: 1992-12-30

Application number

AT94901296T

Other languages

English (en)

Inventor

Alvin John O'donnell

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.)

1992-12-30

Filing date

1993-11-12

Publication date

1997-05-15

1993-11-12 Application filed by Cultor Oy filed Critical Cultor Oy

1997-05-15 Application granted granted Critical

1997-05-15 Publication of ATE153146T1 publication Critical patent/ATE153146T1/de

Links

235000010350 erythorbic acid Nutrition 0.000 title abstract 2
238000011084 recovery Methods 0.000 title abstract 2
CIWBSHSKHKDKBQ-DUZGATOHSA-N D-isoascorbic acid Chemical compound OC[C@@H](O)[C@H]1OC(=O)C(O)=C1O CIWBSHSKHKDKBQ-DUZGATOHSA-N 0.000 title 1
229940026231 erythorbate Drugs 0.000 title 1
238000000034 method Methods 0.000 abstract 2
NWUYHJFMYQTDRP-UHFFFAOYSA-N 1,2-bis(ethenyl)benzene;1-ethenyl-2-ethylbenzene;styrene Chemical compound C=CC1=CC=CC=C1.CCC1=CC=CC=C1C=C.C=CC1=CC=CC=C1C=C NWUYHJFMYQTDRP-UHFFFAOYSA-N 0.000 abstract 1
230000002378 acidificating effect Effects 0.000 abstract 1
239000003957 anion exchange resin Substances 0.000 abstract 1
239000003729 cation exchange resin Substances 0.000 abstract 1

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)

AT94901296T 1992-12-30 1993-11-12 Rücktgewinnung von erythorbaten aus photographischen lösungen ATE153146T1 (de)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number	Publication Date
ATE153146T1 true ATE153146T1 (de)	1997-05-15

Family

ID=25545480

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
AT94901296T ATE153146T1 (de)	1992-12-30	1993-11-12	Rücktgewinnung von erythorbaten aus photographischen lösungen

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
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

1993
- 1993-11-12 AT AT94901296T patent/ATE153146T1/de not_active IP Right Cessation
- 1993-11-12 DK DK94901296.7T patent/DK0677181T3/da active
- 1993-11-12 EP EP94901296A patent/EP0677181B1/de not_active Expired - Lifetime
- 1993-11-12 ES ES94901296T patent/ES2104334T3/es not_active Expired - Lifetime
- 1993-11-12 DE DE69310769T patent/DE69310769T2/de not_active Expired - Fee Related
- 1993-11-12 WO PCT/US1993/010694 patent/WO1994016362A1/en not_active Ceased
- 1993-11-12 JP JP6515967A patent/JP2820245B2/ja not_active Expired - Fee Related
1994
- 1994-10-19 US US08/326,146 patent/US5457214A/en not_active Expired - Fee Related
1997
- 1997-07-30 GR GR970401928T patent/GR3024279T3/el unknown

Also Published As

Publication number	Publication date
DK0677181T3 (da)	1997-12-08
EP0677181A1 (de)	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
ES2104334T3 (es)	1997-10-01
EP0677181B1 (de)	1997-05-14
GR3024279T3 (en)	1997-10-31
WO1994016362A1 (en)	1994-07-21

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Legal Events

Date	Code	Title	Description
1997-11-15	UEP	Publication of translation of european patent specification
1999-08-15	REN	Ceased due to non-payment of the annual fee