GB673058A - Regeneration of exhausted photographic silver bleaching solutions - Google Patents
Regeneration of exhausted photographic silver bleaching solutionsInfo
- Publication number
- GB673058A GB673058A GB31393/50A GB3139350A GB673058A GB 673058 A GB673058 A GB 673058A GB 31393/50 A GB31393/50 A GB 31393/50A GB 3139350 A GB3139350 A GB 3139350A GB 673058 A GB673058 A GB 673058A
- Authority
- GB
- United Kingdom
- Prior art keywords
- alkali metal
- bromide
- mixture
- bisulphate
- exhausted
- 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
Links
- 238000004061 bleaching Methods 0.000 title abstract 7
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 title 1
- 230000008929 regeneration Effects 0.000 title 1
- 238000011069 regeneration method Methods 0.000 title 1
- 229910052709 silver Inorganic materials 0.000 title 1
- 239000004332 silver Substances 0.000 title 1
- 229910052783 alkali metal Inorganic materials 0.000 abstract 6
- -1 alkali metal ferricyanide Chemical class 0.000 abstract 6
- CPELXLSAUQHCOX-UHFFFAOYSA-M Bromide Chemical compound [Br-] CPELXLSAUQHCOX-UHFFFAOYSA-M 0.000 abstract 4
- 239000000203 mixture Substances 0.000 abstract 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 abstract 3
- BMYNFMYTOJXKLE-UHFFFAOYSA-N 3-azaniumyl-2-hydroxypropanoate Chemical compound NCC(O)C(O)=O BMYNFMYTOJXKLE-UHFFFAOYSA-N 0.000 abstract 2
- XWNSFEAWWGGSKJ-UHFFFAOYSA-N 4-acetyl-4-methylheptanedinitrile Chemical compound N#CCCC(C)(C(=O)C)CCC#N XWNSFEAWWGGSKJ-UHFFFAOYSA-N 0.000 abstract 2
- PAYRUJLWNCNPSJ-UHFFFAOYSA-N Aniline Chemical compound NC1=CC=CC=C1 PAYRUJLWNCNPSJ-UHFFFAOYSA-N 0.000 abstract 2
- 239000004153 Potassium bromate Substances 0.000 abstract 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 abstract 2
- 229910001513 alkali metal bromide Inorganic materials 0.000 abstract 2
- SXDBWCPKPHAZSM-UHFFFAOYSA-M bromate Inorganic materials [O-]Br(=O)=O SXDBWCPKPHAZSM-UHFFFAOYSA-M 0.000 abstract 2
- 229940094037 potassium bromate Drugs 0.000 abstract 2
- 235000019396 potassium bromate Nutrition 0.000 abstract 2
- 230000001172 regenerating effect Effects 0.000 abstract 2
- WBHQBSYUUJJSRZ-UHFFFAOYSA-M sodium bisulfate Chemical compound [Na+].OS([O-])(=O)=O WBHQBSYUUJJSRZ-UHFFFAOYSA-M 0.000 abstract 2
- 239000001117 sulphuric acid Substances 0.000 abstract 2
- 235000011149 sulphuric acid Nutrition 0.000 abstract 2
- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical compound [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 abstract 1
- QAOWNCQODCNURD-UHFFFAOYSA-M bisulphate group Chemical group S([O-])(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-M 0.000 abstract 1
- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Substances BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 abstract 1
- 229910052794 bromium Inorganic materials 0.000 abstract 1
- 239000006172 buffering agent Substances 0.000 abstract 1
- 230000007797 corrosion Effects 0.000 abstract 1
- 238000005260 corrosion Methods 0.000 abstract 1
- 229940061607 dibasic sodium phosphate Drugs 0.000 abstract 1
- BNIILDVGGAEEIG-UHFFFAOYSA-L disodium hydrogen phosphate Chemical compound [Na+].[Na+].OP([O-])([O-])=O BNIILDVGGAEEIG-UHFFFAOYSA-L 0.000 abstract 1
- YAGKRVSRTSUGEY-UHFFFAOYSA-N ferricyanide Chemical compound [Fe+3].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-] YAGKRVSRTSUGEY-UHFFFAOYSA-N 0.000 abstract 1
- JGJLWPGRMCADHB-UHFFFAOYSA-N hypobromite Inorganic materials Br[O-] JGJLWPGRMCADHB-UHFFFAOYSA-N 0.000 abstract 1
- 150000002500 ions Chemical class 0.000 abstract 1
- UETZVSHORCDDTH-UHFFFAOYSA-N iron(2+);hexacyanide Chemical compound [Fe+2].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-] UETZVSHORCDDTH-UHFFFAOYSA-N 0.000 abstract 1
- 229910001463 metal phosphate Inorganic materials 0.000 abstract 1
- CRWJEUDFKNYSBX-UHFFFAOYSA-N sodium;hypobromite Chemical compound [Na+].Br[O-] CRWJEUDFKNYSBX-UHFFFAOYSA-N 0.000 abstract 1
- IIACRCGMVDHOTQ-UHFFFAOYSA-N sulfamic acid Chemical compound NS(O)(=O)=O IIACRCGMVDHOTQ-UHFFFAOYSA-N 0.000 abstract 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G49/00—Compounds of iron
-
- 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
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Silver Salt Photography Or Processing Solution Therefor (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US136145A US2611699A (en) | 1949-12-30 | 1949-12-30 | Regeneration of exhausted silver bleaching solutions |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB673058A true GB673058A (en) | 1952-05-28 |
Family
ID=22471510
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB31393/50A Expired GB673058A (en) | 1949-12-30 | 1950-12-27 | Regeneration of exhausted photographic silver bleaching solutions |
Country Status (5)
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2944895A (en) * | 1955-04-13 | 1960-07-12 | Eastman Kodak Co | Regeneration of photographic silver bleach solutions |
| US2843482A (en) * | 1956-03-30 | 1958-07-15 | Eastman Kodak Co | Photographic bleach composition |
| BE567236A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * | 1957-05-15 | |||
| US3869383A (en) * | 1971-11-17 | 1975-03-04 | Fuji Photo Film Co Ltd | Process for treating waste photographic processing solutions |
| US3770437A (en) * | 1972-04-06 | 1973-11-06 | D Brugger | Photographic bleach compositions |
| DE2220667A1 (de) * | 1972-04-27 | 1973-11-08 | Agfa Gevaert Ag | Verfahren zum regenerieren von gebrauchten fotografischen silberbleichloesungen |
| JPS5143312B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * | 1972-10-23 | 1976-11-20 | ||
| US3912514A (en) * | 1973-05-21 | 1975-10-14 | Hunt Chem Corp Philip A | Method of regenerating a spent photographic silver bleach solution |
| GB1525700A (en) * | 1974-11-06 | 1978-09-20 | Fuji Photo Film Co Ltd | Image-forming intensification process using a photographic material |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US728566A (en) * | 1903-01-09 | 1903-05-19 | Claude D Grove | Process of recovering bromin. |
| US1141922A (en) * | 1911-11-07 | 1915-06-08 | Dow Chemical Co | Process of making bromin. |
| US2515930A (en) * | 1946-05-04 | 1950-07-18 | Pavelle Color Inc | Regeneration of photographic silver bleach solution |
-
0
- BE BE500332D patent/BE500332A/xx unknown
-
1949
- 1949-12-30 US US136145A patent/US2611699A/en not_active Expired - Lifetime
-
1950
- 1950-12-27 GB GB31393/50A patent/GB673058A/en not_active Expired
- 1950-12-29 FR FR1030282D patent/FR1030282A/fr not_active Expired
- 1950-12-31 DE DEG4932A patent/DE866909C/de not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| BE500332A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | |
| DE866909C (de) | 1953-02-12 |
| US2611699A (en) | 1952-09-23 |
| FR1030282A (fr) | 1953-06-11 |
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