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Method for producing titanium slag and titanium white chloride by using Panzhihua ilmenite

A technology of ilmenite and titanium chloride, which is applied in the direction of titanium tetrachloride, titanium halide, calcium/strontium/barium chloride, etc., to achieve the effect of wide applicability of raw materials, good dust collection effect, and reduced process

Inactive Publication Date: 2019-12-24
HENAN BILLIONS NEW MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] The purpose of the present invention is to provide a method for utilizing Panzhihua ilmenite to produce titanium slag and titanium dioxide chloride, thereby solving the aforementioned problems in the prior art

Method used

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  • Method for producing titanium slag and titanium white chloride by using Panzhihua ilmenite

Examples

Experimental program
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Effect test

specific Embodiment 1

[0072] In the SRV furnace, using N 2 The flow of ilmenite powder, coal powder and dolomite is sprayed into the molten pool through the side wall spray gun according to the mass ratio of 1:0.25:0.02, and the furnace top spray gun is blown into 1000 ℃ high-temperature air to control the furnace center temperature to 1600 ℃, and the ilmenite The titanium slag was reacted with coal powder for 4 hours, and the obtained titanium slag was discharged from the slag outlet, and the titanium slag product was obtained after cooling and crushing, and the titanium slag grade was 78%.

[0073] Titanium slag is used as raw material to produce titanium dioxide by molten salt chlorination in the chlorination furnace. During the production process, the dust brought out from the chlorination furnace is collected by a cyclone dust removal device, and coarse TiCl is sprayed at the cyclone dust removal inlet. 4 , Control the outlet temperature of the cyclone dust collector at 147°C.

[0074] The mo...

specific Embodiment 2

[0076] In the SRV furnace, using N 2 The flow of ilmenite, coal powder and auxiliary materials is sprayed into the molten pool through the side wall spray gun according to the mass ratio of 1:0.45:0.1, and the furnace top spray gun is blown into high-temperature air at 1100°C to control the furnace center temperature to 1300°C. The ilmenite powder and The pulverized coal was reacted for 12 hours, and the obtained titanium slag was discharged from the slag discharge port, and the titanium slag product was obtained after cooling and crushing, and the grade of the titanium slag was 72%.

[0077] Titanium slag is used as raw material to produce titanium dioxide by molten salt chlorination in the chlorination furnace. During the production process, the dust brought out from the chlorination furnace is collected by a cyclone dust removal device, and coarse TiCl is sprayed at the cyclone dust removal inlet. 4 , Control the outlet temperature of the cyclone dust collector at 400°C.

[...

specific Embodiment 3

[0080] In the SRV furnace, using N 2 The flow of ilmenite, coal powder and auxiliary materials is sprayed into the molten pool through the side wall spray gun according to the mass ratio of 1:0.3:0.15, and the furnace top spray gun is blown into 1300 ℃ high-temperature air to control the furnace center temperature to 1500 ℃, and the ilmenite powder and The pulverized coal was reacted for 7 hours, and the obtained titanium slag was discharged from the slag discharge port, and the titanium slag product was obtained after cooling and crushing, and the grade of the titanium slag was 74%.

[0081] Titanium slag is used as raw material to produce titanium dioxide by molten salt chlorination in the chlorination furnace. During the production process, the dust brought out from the chlorination furnace is collected by a cyclone dust removal device, and coarse TiCl is sprayed at the cyclone dust removal inlet. 4 , Control the outlet temperature of the cyclone dust collector at 350°C.

...

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Abstract

The invention discloses a method for producing titanium slag and chlorinated titanium dioxide by using Panzhihua ilmenite, and relates to the field of metallurgy and chemical engineering. The method comprises the following steps: firstly, carrying out reduction smelting on ilmenite by utilizing an HIsmelt smelting reduction technology to obtain titanium slag and pig iron; then feeding the titaniumslag as a raw material into a chlorination furnace, producing titanium dioxide by adopting a molten salt chlorination method; recycling and separating molten salt slag obtained in the production process, and returning the separated sodium chloride into the chlorination furnace. In the titanium slag smelting process, ilmenite powder can be directly utilized, wherein a reducing agent can be commonanthracite with low requirements or contains part of bituminous coal; meanwhile, smelting can be conducted at a low temperature, energy consumption is greatly reduced, and the additional value of by-product pig iron is high; in titanium dioxide chloride production by using the titanium slag, the cyclone dust removal device has a good dust collection effect on flue gas, reduces the impurity contentin crude titanium tetrachloride, effectively utilizes the molten salt slag, reduces the accumulation amount of the molten salt slag, and has good green and environment-friendly significance.

Description

technical field [0001] The invention relates to the fields of metallurgy and chemical industry, in particular to a method for producing titanium slag and titanium white chloride by utilizing Panzhihua ilmenite. Background technique [0002] In recent years, the competition of titanium dioxide has become increasingly severe, and the raw materials and methods of industrial production of titanium dioxide have also received more and more attention and research. [0003] At present, the industrial production methods of titanium dioxide mainly include sulfuric acid method and chlorination method. Among them, compared with the sulfuric acid method, the chlorination method is more environmentally friendly, and the quality of the titanium dioxide produced by it is higher. Therefore, the chlorination method has been more researched in recent years. [0004] The main process of the production of titanium dioxide by chloride method is: [0005] a. Mix titanium raw material (such as: h...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01G23/02C01F11/28C22B34/12
CPCC01F11/28C01G23/022C22B34/1209Y02P10/20
Inventor 陈建立贺高峰彭忠辉
Owner HENAN BILLIONS NEW MATERIAL CO LTD
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