Jet mixing in preparation of monodisperse silver halide emulsion

Details Jet mixing in preparation of monodisperse silver halide emulsion Jet mixing in preparation of monodisperse silver halide emulsion

1978-05-30

1981-02-17

Kimlin, Edward C.

Radiation imagery chemistry: process, composition, or product th

Radiation sensitive product

Silver compound sensitizer containing

G03C 102

Patent

active

042516277

ABSTRACT:
A process for preparing a photographic emulsion having a controlled grain size, structure, and size distribution, wherein a silver salt and an alkali metal halide react to precipitate silver halide grains at uniform pAg using high velocity mixing jets directed vertically downward to accomplish rapid dilution of and mixing of reactants in a conventional paddle-agitated precipitation vessel. A single recycle loop, or double recycle loops, feeds the mixing jets.

REFERENCES:
patent: 3628959 (1971-12-01), Thielemann
patent: 3650757 (1972-03-01), Irie et al.
patent: 3790386 (1974-02-01), Posse et al.
patent: 3821002 (1974-06-01), Culhane et al.
patent: 3897935 (1975-01-01), Forster
patent: 4147551 (1979-04-01), Finnicum et al.
Hautot, A. Photographic Theory 1962, pp. 17, 26, 27. Liege Summer School, 1962. The Focal Press. London and N. Y.
James, R. W. Photographic Emulsions-Recent Developments, 1973 pp. 131, 132; 1973; Noyes Data Corp. Ridgeway, N. J.

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