GB1243356A - A process for the production of dispersions of sparingly soluble silver salts - Google Patents

A process for the production of dispersions of sparingly soluble silver salts

Info

Publication number
GB1243356A
GB1243356A GB52070/68A GB5207068A GB1243356A GB 1243356 A GB1243356 A GB 1243356A GB 52070/68 A GB52070/68 A GB 52070/68A GB 5207068 A GB5207068 A GB 5207068A GB 1243356 A GB1243356 A GB 1243356A
Authority
GB
United Kingdom
Prior art keywords
chamber
precipitation
ripening
dispersion
precipitation chamber
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
GB52070/68A
Inventor
Rolf-Fred Posse
Wilhelm Saleck
Herbert Muller
August Randolph
Franz Moll
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.)
Agfa Gevaert AG
Original Assignee
Agfa Gevaert AG
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 Agfa Gevaert AG filed Critical Agfa Gevaert AG
Priority to GB52070/68A priority Critical patent/GB1243356A/en
Publication of GB1243356A publication Critical patent/GB1243356A/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
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/50—Circulation mixers, e.g. wherein at least part of the mixture is discharged from and reintroduced into a receptacle
    • B01F25/53—Circulation mixers, e.g. wherein at least part of the mixture is discharged from and reintroduced into a receptacle in which the mixture is discharged from and reintroduced into a receptacle through a recirculation tube, into which an additional component is introduced
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/27—Mixers with stator-rotor systems, e.g. with intermeshing teeth or cylinders or having orifices
    • B01F27/271—Mixers with stator-rotor systems, e.g. with intermeshing teeth or cylinders or having orifices with means for moving the materials to be mixed radially between the surfaces of the rotor and the stator

Abstract

1,243,356. Agitating, mixing and circulating liquids. AGFA-GEVAERT A.G. 4 Nov., 1968, No. 52070/68. Heading B1C. [Also in Division G2] Light-sensitive silver salts, e.g. silver halides, are made by mixing an aqueous solution of a soluble silver salt e.g. AgNO 3 with an aqueous solution of a soluble metal salt e.g. KBr in a precipitation chamber which is stirred so intensively that the concentration of at least one of the reactants remains substantially constant throughout the chamber, and the dispersion of light-sensitive silver salt is then transferred to a ripening chamber which is of larger volume than the precipitation chamber, the precipitation chamber not being located inside the ripening chamber, and at least some of the dispersion in the ripening chamber being recycled to the precipitation chamber. In Fig. 1 silver salt and metal salt solutions are fed from containers 3 and 4 to precipitation chamber 1 and then pumped by pump 7 and line 5 to ripening chamber 2. Dispersion from the ripening chamber is recycled through line 6 to the precipitation chamber. The precipitation chamber may be the inner chamber of a rotary pump as in Fig. 2. In the apparatus of Fig. 2 dispersion is also recycled from the ripening chamber back to the precipitation chamber, and in embodiments the reacting solutions may begin in the storage containers 3 and 4 or 9 and 10, or one solution may begin in a storage container and the other in the ripening chamber. Gelatin may be present or absent during the precipitation.
GB52070/68A 1968-11-04 1968-11-04 A process for the production of dispersions of sparingly soluble silver salts Expired GB1243356A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB52070/68A GB1243356A (en) 1968-11-04 1968-11-04 A process for the production of dispersions of sparingly soluble silver salts

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB52070/68A GB1243356A (en) 1968-11-04 1968-11-04 A process for the production of dispersions of sparingly soluble silver salts

Publications (1)

Publication Number Publication Date
GB1243356A true GB1243356A (en) 1971-08-18

Family

ID=10462517

Family Applications (1)

Application Number Title Priority Date Filing Date
GB52070/68A Expired GB1243356A (en) 1968-11-04 1968-11-04 A process for the production of dispersions of sparingly soluble silver salts

Country Status (1)

Country Link
GB (1) GB1243356A (en)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4147551A (en) * 1972-08-14 1979-04-03 E. I. Du Pont De Nemours And Company Process for photographic emulsion precipitation in a recycle stream
US4539290A (en) * 1983-09-27 1985-09-03 E. I. Du Pont De Nemours And Company Process for pulsed flow, balanced double jet precipitation
US4666669A (en) * 1983-09-27 1987-05-19 E. I. Du Pont De Nemours And Company Apparatus for pulsed flow, balanced double jet precipitation
US5104785A (en) * 1988-12-19 1992-04-14 Fuji Photo Film Co., Ltd. Process of forming silver halide grains
US5145768A (en) * 1988-12-22 1992-09-08 Fuji Photo Film Co., Ltd. Process of forming silver halide grains
US5202226A (en) * 1989-08-10 1993-04-13 Fuji Photo Film Co., Ltd. Process for producing silver halide emulsion
US5270159A (en) * 1988-12-26 1993-12-14 Fuji Photo Film Co., Ltd. Process of producing silver halide grains and apparatus therefor
EP0779538A1 (en) * 1995-12-14 1997-06-18 Kodak-Pathe Method for preparing a photographic emulsion, and apparatus for implementing the method
EP0779537A1 (en) * 1995-12-14 1997-06-18 Kodak-Pathe Method for preparing a photographic emulsion, and apparatus for implementing the method
EP2327472A1 (en) * 2005-09-01 2011-06-01 The Procter & Gamble Company Method of processing materials
GB2495015B (en) * 2010-05-28 2018-09-05 Schlumberger Holdings Blending system and method for preparing emulsions
EP4364834A1 (en) * 2022-11-03 2024-05-08 Wella Germany GmbH Apparatus for preparing a diluted aqueous stream comprising sodium laureth sulfate, system, method and use thereof

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4147551A (en) * 1972-08-14 1979-04-03 E. I. Du Pont De Nemours And Company Process for photographic emulsion precipitation in a recycle stream
US4539290A (en) * 1983-09-27 1985-09-03 E. I. Du Pont De Nemours And Company Process for pulsed flow, balanced double jet precipitation
US4666669A (en) * 1983-09-27 1987-05-19 E. I. Du Pont De Nemours And Company Apparatus for pulsed flow, balanced double jet precipitation
US5104785A (en) * 1988-12-19 1992-04-14 Fuji Photo Film Co., Ltd. Process of forming silver halide grains
US5145768A (en) * 1988-12-22 1992-09-08 Fuji Photo Film Co., Ltd. Process of forming silver halide grains
US5270159A (en) * 1988-12-26 1993-12-14 Fuji Photo Film Co., Ltd. Process of producing silver halide grains and apparatus therefor
US5202226A (en) * 1989-08-10 1993-04-13 Fuji Photo Film Co., Ltd. Process for producing silver halide emulsion
EP0779537A1 (en) * 1995-12-14 1997-06-18 Kodak-Pathe Method for preparing a photographic emulsion, and apparatus for implementing the method
EP0779538A1 (en) * 1995-12-14 1997-06-18 Kodak-Pathe Method for preparing a photographic emulsion, and apparatus for implementing the method
FR2742558A1 (en) * 1995-12-14 1997-06-20 Kodak Pathe PROCESS FOR PREPARING PHOTOGRAPHIC EMULSION AND APPARATUS FOR IMPLEMENTING THE METHOD
FR2742557A1 (en) * 1995-12-14 1997-06-20 Kodak Pathe PROCESS FOR PREPARING PHOTOGRAPHIC EMULSION AND APPARATUS FOR IMPLEMENTING THE METHOD
US5709990A (en) * 1995-12-14 1998-01-20 Eastman Kodak Company Method for preparing a photographic emulsion, and apparatus for implementing the method
US5723279A (en) * 1995-12-14 1998-03-03 Eastman Kodak Company Method for preparing a photographic emulsion, and apparatus for implementing the method
EP2327472A1 (en) * 2005-09-01 2011-06-01 The Procter & Gamble Company Method of processing materials
GB2495015B (en) * 2010-05-28 2018-09-05 Schlumberger Holdings Blending system and method for preparing emulsions
EP4364834A1 (en) * 2022-11-03 2024-05-08 Wella Germany GmbH Apparatus for preparing a diluted aqueous stream comprising sodium laureth sulfate, system, method and use thereof

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