FR1034731A - Regeneration of spent silver bleaching solutions using n-bromo compounds - Google Patents

Regeneration of spent silver bleaching solutions using n-bromo compounds

Info

Publication number
FR1034731A
FR1034731A FR1034731DA FR1034731A FR 1034731 A FR1034731 A FR 1034731A FR 1034731D A FR1034731D A FR 1034731DA FR 1034731 A FR1034731 A FR 1034731A
Authority
FR
France
Prior art keywords
regeneration
bleaching solutions
bromo compounds
silver bleaching
spent silver
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
Application number
Other languages
French (fr)
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.)
GAF Chemicals Corp
Original Assignee
General Aniline and Film Corp
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 General Aniline and Film Corp filed Critical General Aniline and Film Corp
Application granted granted Critical
Publication of FR1034731A publication Critical patent/FR1034731A/en
Expired 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
    • G03C5/395—Regeneration of photographic processing agents other than developers; Replenishers therefor
    • G03C5/3952—Chemical, mechanical or thermal methods, e.g. oxidation, precipitation, centrifugation

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Silver Salt Photography Or Processing Solution Therefor (AREA)
FR1034731D 1949-12-30 1950-12-30 Regeneration of spent silver bleaching solutions using n-bromo compounds Expired FR1034731A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US136146A US2611700A (en) 1949-12-30 1949-12-30 Regeneration of exhausted silver bleach solutions by means of n-bromo compounds

Publications (1)

Publication Number Publication Date
FR1034731A true FR1034731A (en) 1953-07-30

Family

ID=22471516

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1034731D Expired FR1034731A (en) 1949-12-30 1950-12-30 Regeneration of spent silver bleaching solutions using n-bromo compounds

Country Status (5)

Country Link
US (1) US2611700A (en)
BE (1) BE500365A (en)
DE (1) DE873654C (en)
FR (1) FR1034731A (en)
GB (1) GB687311A (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2993745A (en) * 1956-07-27 1961-07-25 Mangels Herold Company Inc Method of and compositions for bleaching in acid solutions
BE567236A (en) * 1957-05-15
BE569085A (en) * 1957-07-05
US2978352A (en) * 1957-07-25 1961-04-04 Du Pont Production of triarylmethane colors
BE622121A (en) * 1961-09-06
US3256092A (en) * 1962-03-05 1966-06-14 Gen Aniline & Film Corp Corrosion inhibitors in bleach solutions
US3770437A (en) * 1972-04-06 1973-11-06 D Brugger Photographic bleach compositions
JPS5143312B2 (en) * 1972-10-23 1976-11-20
JPS49117037A (en) * 1973-03-09 1974-11-08
US3912514A (en) * 1973-05-21 1975-10-14 Hunt Chem Corp Philip A Method of regenerating a spent photographic silver bleach solution
JPS5151350A (en) * 1974-10-30 1976-05-06 Fuji Photo Film Co Ltd

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2515930A (en) * 1946-05-04 1950-07-18 Pavelle Color Inc Regeneration of photographic silver bleach solution

Also Published As

Publication number Publication date
BE500365A (en)
DE873654C (en) 1953-04-16
US2611700A (en) 1952-09-23
GB687311A (en) 1953-02-11

Similar Documents

Publication Publication Date Title
FR1506286A (en) Epoxidation process of olefinic compounds
FR1034731A (en) Regeneration of spent silver bleaching solutions using n-bromo compounds
FR1048554A (en) Dehydrohalogenation of dihalopropionic acid compounds
FR1018934A (en) Improvements in the preparation of lead-hydrocarbon compounds
FR1408037A (en) Coupling for lower rolls of looms
FR1012943A (en) Triple Function Organosilicon Compounds
FR1122038A (en) Chlorosulfonation of organosilicon compounds
FR1469043A (en) Process for the sodium treatment of isoprene
FR1014005A (en) Tetrafunctional organosilicon compounds
FR88676E (en) Manufacture of organosilicon compounds
FR1410429A (en) Process for obtaining compounds of the me-pi-allyl-chi type
FR870294A (en) Process for the preparation of agents having hair activity
FR990119A (en) Formwork for the execution of constructions
FR1029514A (en) Improvements to the regeneration of used sulphite detergents
FR1394195A (en) Epoxidation process of ethylenically unsaturated compounds
FR1014004A (en) Quadruple functional organosilicon compounds
FR995687A (en) Quaternary ammonium compounds
FR998356A (en) Quaternary ammonium compounds
FR1015130A (en) Treatment of antimony compounds
FR1367752A (en) Process for stabilizing solutions of fungicidal organo-mercury compounds for agricultural use
FR1022468A (en) Organosilicon compounds
FR865840A (en) Process for increasing the stability of sodium hypochlorite solutions
FR1002876A (en) Partial envelope for bars of soap
FR992043A (en) Doctor's case
FR1318046A (en) Production of ionic compounds