METHOD FOR PRODUCING MICROPARTICLES

摘要

The present invention addresses the problem of providing a method for producing microparticles. Composite microparticles are precipitated by mixing at least two types of fluids to be treated in a thin-film fluid that is formed between approachable and separable opposing treatment surfaces that relatively rotate, wherein the fluids to be treated are a metal fluid comprising at least two types of metal elements that are dissolved in a solvent in the form of a metal and/or metal compound and a fluid for precipitation containing at least one type of precipitating substance for precipitating a composite substance comprising the at least two types of metal elements. The molar ratio between the at least two types of metal elements contained in the resulting microparticles is controlled by controlling the peripheral speed of the rotation at a confluence where the metal fluid and the fluid for precipitation merge at this time.