GB850958A - Improvements in purification of photographic emulsions - Google Patents
Improvements in purification of photographic emulsionsInfo
- Publication number
- GB850958A GB850958A GB887558A GB887558A GB850958A GB 850958 A GB850958 A GB 850958A GB 887558 A GB887558 A GB 887558A GB 887558 A GB887558 A GB 887558A GB 850958 A GB850958 A GB 850958A
- Authority
- GB
- United Kingdom
- Prior art keywords
- membrane
- permeable
- chambers
- photographic emulsions
- membranes
- 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
- 239000000839 emulsion Substances 0.000 title abstract 5
- 238000000746 purification Methods 0.000 title 1
- 239000012528 membrane Substances 0.000 abstract 7
- 239000007900 aqueous suspension Substances 0.000 abstract 2
- 239000008151 electrolyte solution Substances 0.000 abstract 2
- 150000002500 ions Chemical class 0.000 abstract 2
- 239000001828 Gelatine Substances 0.000 abstract 1
- 238000000909 electrodialysis Methods 0.000 abstract 1
- 229920000159 gelatin Polymers 0.000 abstract 1
- 235000019322 gelatine Nutrition 0.000 abstract 1
- 239000003456 ion exchange resin Substances 0.000 abstract 1
- 229920003303 ion-exchange polymer Polymers 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- 229910052709 silver Inorganic materials 0.000 abstract 1
- 239000004332 silver Substances 0.000 abstract 1
- -1 silver halide Chemical class 0.000 abstract 1
- 238000005406 washing Methods 0.000 abstract 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
- B01D61/42—Electrodialysis; Electro-osmosis ; Electro-ultrafiltration; Membrane capacitive deionization
- B01D61/44—Ion-selective electrodialysis
-
- 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
- G03C1/00—Photosensitive materials
- G03C1/005—Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein
- G03C1/015—Apparatus or processes for the preparation of emulsions
-
- 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
- G03C2200/00—Details
- G03C2200/09—Apparatus
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Water Supply & Treatment (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Urology & Nephrology (AREA)
- Materials Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
- Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
Abstract
850,958. Electrodialysis of photographic emulsions. IONICS Inc. March 19, 1958, No. 8875/58. Drawings to Specification. Class 41 Gelatine photographic emulsions containing a silver halide and dissolved ionic materials are purified by passing an aqueous suspension of the emulsion through an electrolytic chamber bounded on at least one side by a semi-permeable membrane permeable selectively to ions of one predetermined polarity, passing an electrolytic solution on the opposite side of said membrane and applying an electric potential across the membrane to cause ions of the said polarity to pass from the said aqueous suspension to the said electrolytic solution. The emulsion may be passed through a chamber bounded on opposite sides by other chambers and separated therefrom by cation-permeable and anion-permeable membranes respectively; these chambers may form part of a plurality of treating chambers having washing chambers on either side separated therefrom by perm-selective membranes. Suitable membranes may be ion-exchange resins in membrane form or impregnated in or coated on a suitable support. Specification 720,002 is referred to.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEI14235A DE1079452B (en) | 1958-01-10 | 1958-01-10 | Process for making photographic emulsions |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB850958A true GB850958A (en) | 1960-10-12 |
Family
ID=7185619
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB887558A Expired GB850958A (en) | 1958-01-10 | 1958-03-19 | Improvements in purification of photographic emulsions |
Country Status (3)
| Country | Link |
|---|---|
| BE (1) | BE565776A (en) |
| DE (1) | DE1079452B (en) |
| GB (1) | GB850958A (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4102759A (en) * | 1977-03-07 | 1978-07-25 | Polaroid Corporation | Method of electrolytically forming silver halide grains utilizing a novel anode |
| FR2346741A1 (en) * | 1976-04-01 | 1977-10-28 | Polaroid Corp | PROCESS FOR FORMING SILVER HALOGENIDE GRAINS BY ELECTROLYSIS |
| US4102758A (en) * | 1977-03-07 | 1978-07-25 | Polaroid Corporation | Method of electrolytically forming silver halide grains utilizing a novel cathode |
| US4060419A (en) * | 1976-04-01 | 1977-11-29 | Polaroid Corporation | Method of forming silver halide grains by electrolysis |
| US5424180A (en) * | 1990-03-27 | 1995-06-13 | Fuji Photo Film Co., Ltd. | Apparatus for uniform mixing of solutions |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB638457A (en) * | 1947-02-06 | 1950-06-07 | Du Pont | Improvements in or relating to photographic emulsions |
| BE496550A (en) * | 1949-07-09 | |||
| NL162669C (en) * | 1950-07-21 | Du Pont | PROCESS FOR THE PREPARATION OF A FLUORPOLYMER. | |
| DE1000686B (en) * | 1954-10-22 | 1957-01-10 | Ladislav Krivanek | Process and apparatus for the continuous production of photographic emulsions |
-
0
- BE BE565776D patent/BE565776A/xx unknown
-
1958
- 1958-01-10 DE DEI14235A patent/DE1079452B/en active Pending
- 1958-03-19 GB GB887558A patent/GB850958A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE1079452B (en) | 1960-04-07 |
| BE565776A (en) |
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