Emulsion formation system and mixing device

Details Emulsion formation system and mixing device Emulsion formation system and mixing device

1992-11-19

1995-03-21

Lovering, Richard D.

Compositions

Preservative agents

Anti-corrosion

252312, 366150, 366279, B01J 1300, B01F 1502

Patent

active

053992938

ABSTRACT:
A method for preparing oil in water HIPR emulsions includes the steps of providing a Newtonian liquid including a mixture of a viscous hydrocarbon, an emulsifying additive and water; subjecting the Newtonian liquid to a first shear force whereby a substantial portion of the Newtonian liquid is radially displaced and mixed so as to form a non-Newtonian liquid; thereafter subjecting remaining non-radially displaced Newtonian liquid to a second shear force to mix the remaining non-radially displaced Newtonian liquid into the non-Newtonian liquid to form the HIPR emulsion, which emulsion is a stable oil in water emulsion having a droplet size of between about 1 to 30 microns and having a droplet size distribution (x) no greater than about 1, the droplet size distribution being defined as follows: ##EQU1## wherein D90 is a droplet size at least as large as about 90% of all droplets in the oil in water emulsion;

REFERENCES:
patent: 3565817 (1971-02-01), Lissant
patent: 3684251 (1972-08-01), Bowling
patent: 4018426 (1977-04-01), Mertz et al.
patent: 4844620 (1989-07-01), Lissant et al.
patent: 4934398 (1990-06-01), Chiniros et al.
patent: 5000757 (1991-03-01), Puttock et al.
patent: 5147134 (1992-09-01), Bradley et al.
patent: 5211924 (1993-05-01), Lee et al.
patent: 5283001 (1994-02-01), Gregoli et al.
Derwent Abstract AN 85-223315/36 (corresponding to EP-156486-A and US-4,934,398).
Derwent Abstract AN 92-330712/40 (corresponding to US 5,147,134).

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