Preparation method of aluminum-silicon-titanium alloy
A technology of titanium alloy and aluminum-silicon, which is applied in the field of preparation of aluminum-silicon-titanium alloy, can solve the problems of high equipment requirements, high energy consumption of carbothermal reduction method, complicated process, etc., achieve low impurity content, realize harmless treatment, The effect of high purity
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[0025] In view of the reuse of aluminum-silicon overhaul slag in the prior art, this application provides a method for preparing an aluminum-silicon-titanium alloy. The aluminum-silicon-titanium alloy prepared by electrolysis has high purity, low impurity content, and chemical stability. High, on the other hand, using the electrolytic cell in the aluminum electrolysis plant as the electrolysis reaction cell does not require excessive capital investment in equipment, and the electrolysis technology is mature, which solves the problem of fluoride and cyanide in the solid waste of overhaul slag in the aluminum electrolysis industry To solve the pollution problem, the harmless treatment, reduction treatment and resource treatment of the waste lining of the aluminum electrolytic cell have been realized, and the obtained aluminum-silicon-titanium alloy is a high-value product, which has good feasibility and economy. Specifically, the preparation method of the aluminum-silicon-titaniu...
Embodiment 1
[0043] Take the aluminum-silicon solid waste in the lining of the waste tank and grind it to obtain a solid waste crushed material with a particle size of ≤0.15mm; mix the ground crushed material with silicon-titanium-alumina in a certain proportion, because the aluminum-silicon overhaul slag The content of Ti (1.5%) in it is relatively low, and it is necessary to add titanium-containing slag (Ti content is 20%) to obtain a mixture; the content of aluminum in the pulverized material is 16.2wt%, and the content of silicon is 12.41wt%. The content is 1.5wt%; the mass of aluminum and silicon solid waste in the mixture is 10wt% of the mass of the mixture, the quality of titanium-containing slag is 10wt% of the mass of the mixture, and the rest is silicon titanium alumina;
[0044] Add the above mixture into the electrolytic cell for electrolysis. The working voltage of the electrolytic cell is 4.03V, the current efficiency is 93.2%, and the electrolysis temperature is 911°C. The el...
Embodiment 2
[0046] Take the aluminum-silicon solid waste in the lining of the waste tank and grind it to obtain a solid waste crushed material with a particle size of ≤0.15mm; mix the ground crushed material with silicon-titanium-alumina in a certain proportion, because the aluminum-silicon overhaul slag The content of Ti (1.5%) in it is relatively low, and it is necessary to add titanium-containing slag (Ti content is 20%) to obtain a mixture; the content of aluminum in the pulverized material is 16.2wt%, and the content of silicon is 12.41wt%. The content is 1.5wt%; the mass of aluminum-silicon solid waste in the mixture is 20wt% of the mass of the mixture, the quality of titanium-containing slag is 10wt% of the mass of the mixture, and the rest is silicon-titanium-alumina;
[0047] Add the above mixture into the electrolytic cell for electrolysis. The working voltage of the electrolytic cell is 4.08V, the electrolysis temperature is 923°C, and the current efficiency is 90.2%. The electr...
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