Method and apparatus for preparing emulsions

A method for producing an emulsion by spraying particles of a disperse phase liquid into a continuous phase liquid, said method comprising the steps of:

• (a) feeding said continuous phase liquid to a gravitative flow surface on the inner periphery of an emulsifying vessel and allowing said continuous phase liquid to flow therealong due to the force of gravity in the form of a thin filmy stream;
• (b) feeding said disperse phase liquid to a rotary atomizing head;
• (c) rotating said rotary atomizing head in said emulsifying vessel while applying a predetermined high voltage to said rotary atomizing head to thereby atomize said disperse phase liquid to form a spray of disperse phase particles of a desired size;
• and
• (d) directing said spray of disperse phase particles to impact on said filmy stream of said continuous phase liquid on the gravitative flow surface on the inner periphery of said emulsifying vessel to thereby disperse said disperse phase particles in said continuous phase liquid.

A method for producing an emulsion by spraying particles of a disperse phase liquid into a continuous phase liquid, said method comprising the steps of:

• (a) feeding said continuous phase liquid to a gravitative flow surface on the inner periphery of an emulsifying vessel and allowing said continuous phase liquid to flow therealong due to the force of gravity int he form of a thin filmy stream;
• (b) feeding said disperse phase liquid to a rotary atomizing head;
• (c) rotating said rotary atomizing head in said emulsifying vessel while applying a predetermined high voltage and feeding hot steam in said rotary atomizing head to thereby atomize said disperse phase liquid to form a spray of atomized disperse phase particles;
• and
• (d) directing said spray of disperse phase particles to impact on said filmy stream of said continuous phase liquid on the gravitative flow surface on the inner periphery of said emulsifying vessel to thereby disperse said dispersed phase particles in said continuous phase liquid.