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A kind of method for preparing high acid hydrolysis rate titanium slag

A technology of titanium slag and high acid is applied in the fields of titanium slag production of titanium dioxide, post-treatment of titanium slag and preparation of titanium dioxide, to achieve the effect of simple process and improved acid hydrolysis rate

Active Publication Date: 2022-06-03
PANZHIHUA IRON & STEEL RES INST OF PANGANG GROUP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Under the premise of ensuring the particle size of titanium slag and the yield of titanium, it is difficult to effectively separate the silicate phase and black titanite phase by conventional fine grinding and magnetic separation technology

Method used

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  • A kind of method for preparing high acid hydrolysis rate titanium slag
  • A kind of method for preparing high acid hydrolysis rate titanium slag

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preparation example Construction

[0042] Preferably, the amount of nucleating agent added accounts for 2% to 5% of the weight of the titanium slag.

Embodiment 1

Embodiment 2

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Abstract

The invention discloses a method for preparing titanium slag with high acidolysis rate. Add a nucleating agent and mix well; (3) cool the mixture in step (2) under supergravity; (4) take out the cooled mixture in step (3) and cool it to room temperature, and remove silicon by mechanical cutting acid salt phase to obtain titanium slag with high acid hydrolysis rate. The method of the present invention introduces the addition of a nucleating agent and a supergravity field into the titanium slag melt, and by controlling the cooling rate, different phases are directional enriched and precipitated in the titanium slag, and by removing the phase silicic acid that affects the acidolysis rate The salt phase greatly improves the acid hydrolysis rate of titanium slag.

Description

A kind of method for preparing high acid hydrolysis rate titanium slag technical field The invention belongs to the field of titanium slag aftertreatment and preparation of titanium dioxide, in particular to a method for preparing high acid hydrolysis rate titanium slag The method is applicable to all fields of titanium slag smelting and titanium slag production of titanium dioxide. Background technique The essence of electric furnace smelting titanium slag is that ilmenite and solid reducing agent anthracite or petroleum coke are mixed and added in electric furnace. In reduction smelting, the oxides of iron in the ore are selectively reduced to metallic iron, and the oxides of titanium are enriched in the slag. After the slag and iron are separated, titanium slag and by-product metallic iron are obtained. The conventionally produced titanium slag is acid-soluble titanium slag for the production of titanium dioxide by the sulfuric acid method. The acidolysis rate of...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01G23/053
CPCC01G23/053Y02P10/20
Inventor 刘娟肖军李凯茂宋兵
Owner PANZHIHUA IRON & STEEL RES INST OF PANGANG GROUP
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