Method for determining reaction acid concentration consistency in titanium dioxide acidolysis

Abstract

The invention discloses a method for determining reaction acid concentration consistency in titanium dioxide acidolysis, which comprises the following steps: in the acidolysis process, firstly determining original acid concentration and reaction acid concentration, then counting the weight of added mineral powder, acid-mineral ratio, sulfuric acid volume, sulfuric acid density, waste acid specific gravity and waste acid concentration, calculating the waste acid amount according to the following formula: (mineral powder weight * acid-mineral ratio-sulfuric acid volume * sulfuric acid density * reaction acid concentration) / waste acid specific gravity * (reaction acid concentration-waste acid concentration) = the waste acid amount, and adjusting the waste acid amount according to the set reaction acid concentration. The method has the beneficial effects that due to the accurate control of the acid concentration of the acidolysis reaction, the problem that a large number of solid-phase substances remain in a titanium dioxide production acidolysis pot is solved. No solid-phase substance is left in the acidolysis pot, and a clear gas distribution plate can be seen in the acidolysis pot. A guarantee is provided for increasing the yield. A solid foundation is laid for improving the quality, and the decomposition and acidolysis rate of titanium ores is increased and stabilized to 95.5% or above from the original less than 92.5%.

Description

technical field [0001] The invention relates to the field of sulfuric acid titanium dioxide production technology, in particular to a method for determining the consistency of reaction acid concentration in acidolysis of titanium dioxide. Background technique [0002] Titanium dioxide, scientifically known as titanium dioxide, is considered to be a white pigment with the best performance in the world. It is widely used in coatings, synthetic fibers, high-grade white paint, white rubber, printing, metallurgy and other industries. [0003] Acid hydrolysis is the leader of titanium dioxide production. Without a stable process as a guarantee, it is impossible to achieve long-term sustainable and stable production of titanium dioxide, and it is impossible to have a high acid hydrolysis rate to maximize production benefits. The existing acid hydrolysis process generally adopts the solid-phase method, which is to put the sulfuric acid measured according to the ratio of mineral acid...

AI Technical Summary

Problems solved by technology

[0008] The technical problem to be solved by the present invention is that in the existing acid hydrolysis of titanium dioxide, due to the concentration of the original acid, the concentration of the induced acid will affect the acid hydrolysis, but there is currently no special method to ensure the consistency of the concentration of the original acid and the concentration of the induced acid. For this reason, the present invention provides a method for determining the consistency of reaction acid concentration in the acid hydrolysis of titanium dioxide

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