Large-capacity molten salt chlorinating device for treating high-calcium magnesium titanium slag and production method

A molten salt chlorination, high calcium and magnesium technology, applied in titanium tetrachloride, titanium halide and other directions, can solve the problems of low chlorination efficiency, low production capacity of high calcium magnesium titanium slag, etc. The efficiency of chlorination reaction and the effect of increasing the diameter of the furnace body

Inactive Publication Date: 2018-12-21
CHENGDU ADVANCED METAL MATERIALS IND TECH RES INST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In order to overcome the shortcomings of the existing molten salt chlorination furnace for low-grade high-calcium-magnesium-titanium slag production capacity and low chlo

Method used

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  • Large-capacity molten salt chlorinating device for treating high-calcium magnesium titanium slag and production method
  • Large-capacity molten salt chlorinating device for treating high-calcium magnesium titanium slag and production method
  • Large-capacity molten salt chlorinating device for treating high-calcium magnesium titanium slag and production method

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Effect test

Embodiment 1

[0032] Adopting the large-capacity molten salt chlorination device involved in the present invention, the solid material is transported into the molten salt through the furnace top silo and the feeding screw, and chlorine gas is input through the bottom gas nozzle, wherein the solid titanium slag material is composed of: TiO 2 -73.88%, FeO-8.59%, SiO 2 -4.16%, MnO-1.30%, V 2 o 5-0.30%, MgO-5.34%, CaO-1.71%; C content in petroleum coke is 98%, volatile matter is 0.56%, ash content is 0.5%; 2 -1.66%, N2-7.87%; NaCl content is 98.5% in the sodium chloride salt, and under test condition, titanium slag: petroleum coke: sodium chloride: the ratio of chlorine is 0.643:0.104:0.157:1, and the reaction process of feeding control The temperature is 750°C ~ 780°C. During the process, the temperature of the molten salt is stably controlled by the titanium tetrachloride slurry, and the high temperature flue gas is cooled by the titanium tetrachloride slurry, and the temperature of the mix...

Embodiment 2

[0037] Adopt the large-capacity molten salt chlorination device involved in the present invention, wherein the solid titanium slag material is composed of: TiO 2 -78.3%, FeO-6.59%, SiO 2 -3.17%, MnO-1.10%, V 2 o 5 -0.21%, MgO-3.34%, CaO-1.78%; the C content in petroleum coke is 98%, the volatile matter is 0.56%, and the ash content is 0.5%; the chlorine gas in the furnace is composed of Cl 2 -85%~88%, CO 2 -1.7%, N 2 -7.9%; NaCl content is 98.5% in the sodium chloride salt, under test condition, titanium slag: petroleum coke: sodium chloride: chlorine=1:0.15:0.263:1.55, pass furnace top silo and feeding screw in the chlorination process The solid material is transported into the molten salt, and chlorine gas is input through the gas nozzle at the bottom. The temperature of the reaction process is controlled by feeding to 760°C to 770°C, and the temperature of the mixed flue gas is controlled to be 360°C to 430°C. Further, through the follow-up supporting dust collection sy...

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Abstract

The invention discloses a large-capacity molten salt chlorinating device for treating high-calcium magnesium titanium slag and a production method in the technical field of metal smelting. The large-capacity molten salt chlorinating device comprises a furnace body, a gas spraying pipe arranged at the bottom of the furnace body, a graphite electrode and a waste salt discharging chute which are arranged on the side surface of the furnace body, and a smoke gas outlet formed in the top of the furnace body, wherein a furnace top bin stretching into the furnace body is arranged on the top of the furnace body; screw feeders are arranged at outlets in the bottom of the furnace top bin; and the screw feeders are rotatably connected with the furnace top bin. Through reasonable design of the furnacebody, the diameter of the furnace body is increased; and through arrangement of the furnace top bin and the screw feeders on the top of the furnace, the distribution uniformity of a gas material and asolid material in the furnace is improved, the chlorination reaction efficiency of the high-calcium magnesium titanium slag is improved, and thus the single furnace capacity is improved.

Description

technical field [0001] The invention relates to the technical field of metal smelting, in particular to a large-capacity molten salt chlorination device and a production method for treating high-calcium-magnesium-titanium slag. Background technique [0002] Titanium is an important key strategic material for my country's national defense and national economic development. Titanium, titanium alloys, and titanium dioxide are widely used in various fields such as aerospace, shipbuilding, chemical industry, and metallurgy. Titanium tetrachloride is an important material for the production of titanium metal and titanium dioxide. Intermediate raw materials. In recent years, domestic sponge titanium and chloride titanium dioxide industries have developed rapidly. 4 The demand for raw materials is more prominent. Production of TiCl 4 The raw materials are titanium concentrate, rutile or titanium slag. China's titanium resources account for 29% of the world's total. The ilmenite res...

Claims

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Application Information

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IPC IPC(8): C01G23/02
CPCC01G23/022
Inventor 李亮李开华陈爱祥
Owner CHENGDU ADVANCED METAL MATERIALS IND TECH RES INST CO LTD
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