Apparatus for producing emulsions

Details Apparatus for producing emulsions Apparatus for producing emulsions

1978-08-29

1980-12-02

Lovering, Richard D.

Compositions

Preservative agents

Anti-corrosion

2523115, 252314, B05B 502, B01F 308, B01J 1300

Patent

active

042370280

ABSTRACT:
An emulsion of a disperse phase liquid in a continuous phase liquid is produced by atomizing the disperse phase liquid electrostatically and entraining the atomized droplets in a moving layer of continuous phase liquid. To produce a spray with atomized droplets of small and uniform size a disperse phase liquid, such as wax in a solvent, is directed to flow over the sharp edge of a blade maintained at a high voltage with respect to the conductive surface of the drum. The drum is rotated so that the surface is wetted by a reservoir of continuous phase liquid and so that the surface layer of liquid intercepts the spray of droplets at a uniform rate to produce an emulsion of consistent concentration. The concentration is controlled by setting the rates of flow and the number of cycles of interception.

REFERENCES:
patent: 2723646 (1955-11-01), Ransburg
patent: 2777784 (1957-01-01), Miller
patent: 2893893 (1959-07-01), Crouse
patent: 3118843 (1964-01-01), Stuetzer
patent: 3129112 (1964-04-01), Marvin
Nawab et al., "The Preparation of Uniform Emulsions by Electrical Dispersion," J. Colloid Science, 13, pp. 179-187 (1958).

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