Method for producing TiCl4 by using low-TiO2-grade titanium slag

A technology of titanium slag and grade, applied in the direction of titanium halide, titanium tetrachloride, etc., can solve the problems of long production time and high cost, and achieve the effect of reducing production cost and improving comprehensive utilization level.

Inactive Publication Date: 2015-05-06
PANGANG GROUP TITANIUM INDAL
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Problems solved by technology

[0005] The technical problem to be solved by the present inve

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  • Method for producing TiCl4 by using low-TiO2-grade titanium slag
  • Method for producing TiCl4 by using low-TiO2-grade titanium slag

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Embodiment 1

[0030] Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

[0031] The powdered titanium slag, petroleum coke and sodium chloride loaded into the furnace top bunker 2 are prepared into a mixed furnace charge through a metering belt scale 1 in a set amount, and the furnace charge is added to the melting furnace through a feeding screw 3 at an appropriate speed. Salt chlorination furnace 4. Cl with a pressure of 60-120kpa 2 When passing into the molten salt layer at 700-750°C in the chlorination furnace, the molten salt will be strongly stirred, and at the same time, the 2 It is heated and dispersed in the molten salt medium, and the mixed charge added to the furnace is fully dispersed in the molten salt. The main reaction in the molten salt is: TiO 2 +2C+2Cl 2 =TiCl 4 +2CO; TiO 2 +C+2Cl 2 =TiCl 4 +CO 2 . Other components in titanium slag will also interact with Cl 2 Interaction to form FeC...

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Abstract

The invention belongs to the field of chemical production, and particularly relates to a method for producing TiCl4 by using low-TiO2-grade titanium slag, solving the technical problems long production of time and high cost. The method for producing TiCl4 by using low-TiO2-grade titanium slag provided by the invention in order to solve the technical problems comprises the following steps: a. adding titanium slag, petroleum coke and sodium chloride to a molten salt chlorinating furnace to react with chlorine at a temperature of 700 to 750 DEG C; and b. conveying a gaseous mixture obtained by reaction from the chlorinating furnace to a dust collection and condensation equipment system, and condensing gaseous TiCl4 into a crude product after removing high-boiling-point impurities. By using the method provided by the invention reduction of the production cost of the TiCl4 crude product is facilitated, the comprehensive utilization level of titanium resources in Panzhihua is improved, and a new development direction for the development of titanium industry of Panzhihua is brought.

Description

technical field [0001] The invention belongs to the field of chemical production, in particular to TiO 2 Production of TiCl from low-grade titanium slag 4 Methods. Background technique [0002] The current TiCl in the world 4 The production methods mainly include boiling chlorination method and molten salt chlorination method. The basic principle of the two production methods is that under certain temperature and carbon addition conditions, the TiO in titanium slag 2 Components and Cl 2 The reaction produces TiCl 4 . Boiling chlorination method requires TiO in titanium slag 2 The content is generally more than 90%, which is called artificial rutile; while the molten salt chlorination method generally requires TiO in titanium slag 2 The content reaches more than 85%. The production of artificial rutile requires the use of natural rutile concentrate, TiO 2 The grade is generally above 93%, but its reserves are limited and the price is expensive. [0003] In China, ab...

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Application Information

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IPC IPC(8): C01G23/02
CPCC01G23/022
Inventor 陈爱祥姜方新夏建辉黄子良李亮孔祥涛刘长东秦兴华唐永耀
Owner PANGANG GROUP TITANIUM INDAL
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