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Method for preparing chlorinated titanium-rich material by taking Panxi titanium concentrate and titanium tetrachloride dust collection slag as raw materials

A technology for titanium tetrachloride and dust collection slag, applied in flotation, solid separation and other directions, can solve problems such as difficulty in preparing chlorinated titanium-rich materials, and achieve the effects of reducing smelting difficulty, smelting cost, and reducing dependence

Pending Publication Date: 2022-04-22
宜宾天原海丰和泰有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problem that Panxi titanium concentrate is difficult to prepare chlorinated titanium-rich material, the present invention provides a method for preparing chlorinated titanium-rich material by using Panxi titanium concentrate and titanium tetrachloride dust residue as raw materials

Method used

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  • Method for preparing chlorinated titanium-rich material by taking Panxi titanium concentrate and titanium tetrachloride dust collection slag as raw materials

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Prepare titanium chloride rich material according to the following method:

[0026] (1) A Panxi high-silicon calcium magnesium titanium concentrate (TiO 2 47.47%, SiO 2 2.67%, CaO 0.85%, MgO5.10%), fine grinding first, and then adding silicon-inhibiting flotation agents for 4 times of flotation to obtain concentrate: TiO 2 50.13%, SiO 2 0.70%, CaO 0.20%, MgO 4.76%; secondary concentrate contains TiO 2 46.50%, SiO 2 3.60%, CaO 1.20% or so ordinary titanium concentrate; the silicon-inhibiting flotation agent is composed of the following components in mass fractions: 100 parts of collectors, 32 parts of inhibitors, and 30 parts of regulators. The mass ratio of Panxi titanium concentrate to silicon-inhibiting flotation agent is 1000:1.

[0027] (2) After beating the chlorinated dust collection slag with a hydrochloric acid solution with a mass concentration of 0.1%, press-filter and wash the slurry to obtain a filter cake, and the measured filter cake components are sh...

Embodiment 2

[0039] Prepare titanium chloride rich material according to the following method:

[0040] (1) A Panxi high-silicon calcium magnesium titanium concentrate (TiO 2 47.47%, SiO 2 2.67%, CaO 0.85%, MgO5.10%), fine grinding first, and then adding silicon-inhibiting flotation agents for 4 times of flotation to obtain concentrate: TiO 2 50.13%, SiO 2 0.70%, CaO 0.20%, MgO 4.76%; secondary concentrate contains TiO 2 46.50%, SiO 2 3.60%, CaO 1.20% or so ordinary titanium concentrate; the silicon-inhibiting flotation agent is composed of the following components in mass fractions: 100 parts of collectors, 32 parts of inhibitors, 30 parts of regulators; The mass ratio of titanium concentrate to silicon-inhibiting flotation agent is 1000:1.

[0041] (2) After beating the chlorinated dust collection slag with a hydrochloric acid solution with a mass concentration of 0.5%, the slurry is press-filtered and washed to obtain a filter cake, and the measured filter cake components are shown...

Embodiment 3

[0053] Prepare titanium chloride rich material according to the following method:

[0054] (1) A Panxi high-silicon calcium magnesium titanium concentrate (TiO 2 47.47%, SiO 2 2.67%, CaO 0.85%, MgO5.10%), fine grinding first, and then adding silicon-inhibiting flotation agents for 4 times of flotation to obtain concentrate: TiO 2 50.13%, SiO 2 0.70%, CaO 0.20%, MgO 4.76%; secondary concentrate contains TiO 2 46.50%, SiO 2 3.60%, CaO 1.20% or so ordinary titanium concentrate; the silicon-inhibiting flotation agent is composed of the following components in mass fractions: 100 parts of collectors, 32 parts of inhibitors, 30 parts of regulators; The mass ratio of titanium concentrate to silicon-inhibiting flotation agent is 1000:1.

[0055] (2) After beating the chlorinated dust collection slag with a hydrochloric acid solution with a mass concentration of 1%, the slurry is press-filtered and washed to obtain a filter cake, and the measured filter cake components are shown i...

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Abstract

The invention discloses a method for preparing a titanium-rich chloride material by taking Panxi titanium concentrate and titanium tetrachloride dust collection slag as raw materials. The method comprises the following steps: S1, carrying out flotation on the Panxi titanium concentrate by using a flotation reagent; s2, pulping the chlorinated dust collection slag with an acid solution; s3, carrying out filter pressing and washing on the slurry; s4, blending polyvinyl alcohol into the filter cake, and then pelletizing; s5, the titanium-containing pellets, the fine concentrate and anthracite are blended in proportion and smelted into high-titanium slag through an electric furnace; and S6, the high-titanium slag is crushed, UGS slag is doped in proportion, and the chlorinated titanium-rich material is obtained. The method has the advantages that 1, the silicon content of the Panxi titanium concentrate is controlled from the source, and the follow-up electric furnace smelting difficulty is reduced; 2, carbon and titanium components in the chlorination dust collection slag are applied to the titanium slag smelting process to replace part of titanium concentrate and petroleum coke, so that the titanium slag smelting cost is greatly reduced; and 3, high titanium slag with relatively high impurity content after smelting is blended with imported UGS slag for use, so that the dependence on imported titanium-rich materials is reduced.

Description

technical field [0001] The invention relates to a production technology of titanium dioxide, in particular to a production technology of titanium dioxide by chloride method. Background technique [0002] High-titanium slag, natural rutile, artificial rutile, UGS slag, etc. are the main raw materials for chlorination titanium dioxide and sponge titanium. In 2020, the output of chlorination titanium dioxide in my country will be 320,000 tons, and the output of sponge titanium will be 116,000 tons. Chlorination is required Titanium-rich materials are more than 600,000 tons, while the output of high-titanium slag (mainly produced titanium-rich materials) in China is only 247,800 tons, and there is a large market gap. In addition, as the domestic chlorination titanium dioxide ushers in a period of rapid development, and the demand for aerospace titanium continues to grow rapidly and the overall recovery of chemical titanium, it is expected that the production capacity of chlorinat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22B1/24C22B34/12B03D1/14
CPCC22B1/2406C22B34/1213C22B34/1218B03D1/14
Inventor 温小虎唐勇徐慧远周高明
Owner 宜宾天原海丰和泰有限公司
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