Process for homogenizing essentially immiscible liquids for forming an emulsion

Abstract

A process for homogenizing essentially immiscible liquids for forming an emulsion comprises the steps of (1) guiding an inner phase towards a mixing region under a given high pressure; (2) guiding an outer phase towards the mixing region under a relatively lower pressure; (3) forming jets in the form of thin, flat sheets with the inner and outer phases; (4) colliding the sheets-like jets of the inner and outer phases substantially in a counter-current and thus forming a phase mixture; and (5) subsequently withdrawing the phase mixture from the mixing region. The apparatus includes two oppositely disposed expansion valves through which the respective phases are fed into the mixing region. The expansion valves are formed of flat-conical valve seats and corresponding valve cones. The mixing region is defined centrally between the two expansion valves. The emulsion is withdrawn directly from the mixing region through an outlet valve, in which it may be exposed to further fine mixing.

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