Pollution-free gas-phase oxidation separation purification method for artificial diamond
A synthetic diamond, gas-phase oxidation technology, applied in chemical instruments and methods, solid separation, wet separation, etc., can solve problems such as environmental pollution of synthetic diamond powder, avoid harsh working conditions and serious environmental pollution, save raw materials, The effect of post-processing simplification
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[0025] The steps for producing synthetic diamond using the process method of the present invention are as follows:
[0026] In the first step, the initial crushing is carried out. The composite rod is crushed into fine particles by mechanical crushing, such as a jaw crusher or a roller crusher. The diameter of the fine particles is preferably 3-5mm.
[0027] The second step: the pyrolysis process, using a high-temperature sintering method based on the principle of gas phase oxidation to pyrolyze the fine particles. Strictly control the pyrolysis temperature of 450℃-650℃, and use water vapor and inert gas for protection.
[0028] The third step: crushing and dissociation process, the fine particles treated by high temperature oxidation are further broken and dissociated. Use mechanical rolling and kneading as much as possible, such as ball milling. Strictly control the strength and add media protection to prevent damage to the diamond single crystal.
[0029] The fourth step: separ...
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