Novel production process of titanium dioxide powder
A production process and technology of titanium dioxide, applied in the direction of titanium dioxide, titanium oxide/hydroxide, etc., can solve the problems of long production cycle of titanium dioxide, low titanium yield, and high content of ferrous titanium, so as to shorten the production cycle and reduce residual waste. The effect of low titanium content and reduced solid impurity content
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[0008] The invention provides a novel titanium dioxide production process, which is processed by the following steps:
[0009] 1. The purchased titanium ore sand is crushed into titanium ore powder that meets the process requirements with a Raymond machine or wind-swept mill, and sent to the silo for storing and measuring titanium ore powder.
[0010] 2. Decompose titanium ore with concentrated sulfuric acid to produce soluble titanium sulfate. The main component of ilmenite is iron metatitanate (FeTiO 3 ), is a weak acid and weak base salt, which can be decomposed by strong acid. The reaction can be carried to the end with an excess of acid. Since this reaction is an exothermic reaction, the highest temperature can reach 250 ° C, so it is necessary to use a high boiling point acid - sulfuric acid to adapt to this reaction. In the process of acid decomposition, most of the various impurities in the ore powder are also decomposed to form the corresponding soluble sulfate, an...
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