Microparticle Manufacturing Method

一种制造方法、微粒的技术，应用在化学仪器和方法、含有效成分的医用配制品、医药配方等方向，能够解决难以稳定制作微粒、残留改善的余地、难以制作均匀且均质的微粒等问题
CN106029216BInactive Publication Date: 2018-05-08M TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
M TECH CO LTD
Publication Date
2018-05-08
Estimated Expiration
Not applicable · inactive patent

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Abstract

Provided is a method for producing fine particles, comprising: a dissolving step of dissolving at least one kind of fine particle raw materials in a solvent using a stirrer having a rotating stirring blade to obtain a fine particle raw material solution; At least one of the precipitated solvents and the fine particle raw material solution are introduced between at least two processing surfaces that are oppositely arranged, accessible and / or separate, and at least one of them rotates relative to the other. This is a precipitation step in which fine particles are precipitated by mixing in the thin film fluid formed between the treatment surfaces. In the above-mentioned dissolving step, the stirring energy specified by the stirring time conditions using the stirrer, the peripheral speed conditions of the stirring blades, and the temperature conditions of the fine particle raw material solution is increased or decreased by changing at least one of the above conditions. , by increasing or decreasing the stirring energy, the crystallinity and crystal form of the particles obtained in the precipitation step are controlled.
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Description

technical field

[0001] The present invention relates to a method for producing microparticles. Background technique

[0002] Microparticles such as metals, oxides, pharmaceuticals, foods, cosmetics, and other living body ingestible substances, and pigments are required in a wide range of fields in the industry.

[0003] The production method of microparticles generally uses a flask, a beaker, a tank, etc. as described in Patent Document 1 to perform reactions such as poor solvent method, crystallization, oxidation, and reduction. It is difficult to uniformly maintain the concentration and temperature in the container, so the particle size distribution of the obtained particles tends to widen. In addition, in the case of producing fine particles such as alloys and composite oxides containing two or more elements, it is difficult to obtain them in a homogeneous manner. Element ratios make particles. In addition, a method for producing microparticles using a microreactor as d...

Claims

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