Preparation method of gallium particles

Abstract

The invention provides a preparation method of gallium particles. The preparation method includes the steps: adding coolants to a container, so that forming a coolant layer in the container by the coolants; adding insulation agents to the container, so that forming an insulation agent layer on the coolant layer; adding liquid state gallium to a titrator; inserting a titration opening of the titrator into the insulation agent layer, enabling the liquid state gallium to flow out from the titrator, so that forming gallium drops on the titration opening by the liquid state gallium flowing out the titrator, the gallium drops break array the titration opening and flow the insulation agent layer and then enter into the coolant layer, then forming the gallium particles. According to the preparation method of the gallium particle, due to fact that operation is done, combination of the insulation agent and the coolant is adopted, the preparation method is capable of simplifying technologies, easy to operate, and quality of products is easy to observe, and particle diameters of the gallium particles are controllable, and uniformity is good.

Description

technical field [0001] The invention relates to a method for preparing metal particles, in particular to a method for preparing gallium particles. Background technique [0002] Gallium (Gallium) chemical formula Ga, molecular weight 69.72, silver-white metal, density 5.904g / cm 3 , melting point 29.78°C, boiling point 2403°C. Gallium is soft, brittle, and stable in air. Gallium is soluble in acid and alkali when heated; it reacts violently with boiling water, and only slightly reacts with water at room temperature; it can react with most metals at high temperature. Gallium has a wide range of uses. Gallium can be used as a raw material for making optical glass, vacuum tubes, and semiconductors. In addition, gallium can be used in quartz thermometers to measure high temperatures, and it can be added to aluminum to produce heat-treatable alloys. Alloys of gallium and gold are used in decoration and inlays. Ga is also sometimes used as a catalyst in organic synthesis. [00...

AI Technical Summary

Problems solved by technology

[0003] Although gallium has a wide range of uses, because the melting point of gallium is very low, only 30°C, and the supercooling degree of high-purity gallium is large, it often does not solidify until -18°C, so it is difficult to produce gallium with uniform, smooth, and small particle sizes. grain

[0004] The Chinese patent application No. 200810155685.1 authorized and announced on April 22, 2009 and the Chinese patent application No. 200920036936.4 authorized and announced on December 9, 2009 have proposed two raindrop-shaped high-purity gallium pellet preparation devices , but these two preparation devices seem to be simple, but in fact the preparation devices and methods are slightly complicated, and the particle size of the prepared raindrop-shaped gallium particles is too small (the mass of each particle is 0.5 g or 1.0 g, and the particle size is about 0.27mm or 0.34mm ), hoping to have a more simple and practical production method, and make the size of gallium particles controllable without making the particle size too small

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