Titanium dioxide plus carbon boiling chlorination simulation reactor and simulation method

A technology of titanium dioxide and boiling chlorination, applied in chemical instruments and methods, titanium halide, titanium tetrachloride, etc., can solve problems such as failure to study well, failure to effectively reveal the law of complex interaction effects, etc. Accuracy, improving universality, and improving experimental efficiency

Active Publication Date: 2022-05-10
CHONGQING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The process is a complex multiphase reaction in which gas-solid multiphase is mixed with each other. Experts and scholars at home and abroad have conducted a lot of research on it, and have put forward many viewpoints and conjectures to explain this macroscopic phenomenon based on thermodynamic analysis, but they cannot be effectively revealed. TiO 2 In the process of carbonation and chlorination, the complex interaction between multi-phases and the influence of various factors on the chlorination reaction rate failed to study the reaction process and accumulate technical reference data.

Method used

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  • Titanium dioxide plus carbon boiling chlorination simulation reactor and simulation method
  • Titanium dioxide plus carbon boiling chlorination simulation reactor and simulation method
  • Titanium dioxide plus carbon boiling chlorination simulation reactor and simulation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0056] TiO with a particle size of 200-300 mesh and a purity of 99% 2 Particles and petroleum coke particles with a particle size of 120-160 mesh and a C content of 99% are evenly placed in the quartz tube 9, and the quartz tube 9 is sent into the heating furnace 100 through the telescopic rod 4, and the height of the exhaust pipe 7 is adjusted so that The top of the top cover 12 is connected and sealed with the exhaust pipe 7 . Adjust the temperature of the furnace to 900°C. During the heating stage, the nitrogen gas source is introduced into the inlet channel 6, and the superficial gas velocity is adjusted to be 0.15m / s, so that the mixture in the quartz tube 9 is boiled and fluidized. When the temperature rose to 900°C, the nitrogen gas was switched to chlorine gas, the gas velocity was kept constant, and the reaction time was 30 minutes. TiCl produced by the reaction 4 , CO, CO 2 In the form of gas, it is discharged into the alkali solution from the exhaust pipe 7 for a...

Embodiment 2

[0058] TiO with a particle size of 200-300 mesh and a purity of 99% 2 Particles and petroleum coke particles with a particle size of 120-160 mesh and a C content of 99% are evenly placed in the quartz tube 9, and the quartz tube 9 is sent into the heating furnace 100 through the telescopic rod 4, and the height of the exhaust pipe 7 is adjusted so that The top of the top cover 12 is connected and sealed with the exhaust pipe 7 . Adjust the furnace temperature to 900°C. During the heating stage, the nitrogen gas source is introduced into the inlet channel 6, and the superficial gas velocity is adjusted to be 0.20m / s, so that the mixture in the quartz tube 9 is boiled and fluidized. When the temperature rose to 900°C, the nitrogen gas was switched to chlorine gas, the gas velocity was kept constant, and the reaction time was 30 minutes. TiCl produced by the reaction 4 , CO, CO 2 In the form of gas, it is discharged into the alkali solution from the exhaust pipe 7 for absorpti...

Embodiment 3

[0060] TiO with a particle size of 200-300 mesh and a purity of 99% 2 Particles and petroleum coke particles with a particle size of 120-160 mesh and a C content of 99% are evenly placed in the quartz tube 9, and the quartz tube 9 is sent into the heating furnace 100 through the telescopic rod 4, and the height of the exhaust pipe 7 is adjusted so that The top of the top cover 12 is connected and sealed with the exhaust pipe 7 . Adjust the furnace temperature to 900°C. During the heating stage, the nitrogen gas source is introduced into the inlet channel 6, and the superficial gas velocity is adjusted to be 0.25m / s, so that the mixture in the quartz tube 9 is boiled and fluidized. When the temperature rose to 900°C, the nitrogen gas was switched to chlorine gas, the gas velocity was kept constant, and the reaction time was 30 minutes. TiCl produced by the reaction 4 , CO, CO 2 In the form of gas, it is discharged into the alkali solution from the exhaust pipe 7 for absorpti...

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Abstract

The invention relates to a titanium dioxide plus carbon boiling chlorination simulated reactor and a simulated method. The reactor includes a heating furnace and a reactor body; the reactor body includes a vertical quartz tube, the quartz tube has a flared bottom end, and the quartz tube is horizontally There is a lower sieve plate, the top of the quartz tube is equipped with an inverted funnel-shaped top cover, the top cover is fastened to the top of the quartz tube through the lower part of the flare, the inner cavity of the top cover is vertically connected, and the upper part of the top cover is horizontally There is an upper sieve plate; the bottom of the heating furnace is provided with a furnace inlet and connected to a base through a telescopic rod. The cover base is provided with an air intake channel, the inner end of the air intake channel is connected to the quartz tube, and the top of the heating furnace is provided with a vertically adjustable exhaust pipe. The inner end of the exhaust pipe is located directly above the top cover and fits at the top of the top cover. The reactor is convenient for simulating the reaction process of titanium dioxide plus carbon boiling chlorination and obtaining more parameters with reference value.

Description

technical field [0001] The invention belongs to the technical field of solid waste treatment and recovery in metallurgy, and in particular relates to a titanium dioxide plus carbon boiling chlorination simulation reactor and a simulation method. Background technique [0002] Titanium oxides, especially titanium dioxide (TiO 2 ), cannot directly react with chlorine, adding carbon can significantly improve TiO 2 chlorination reaction process. Based on this, rich TiO 2 90% high-titanium slag is mixed with petroleum coke (C), boiled and chlorinated at high temperature, and has become a 4 ) mainstream technology. The process is a complex multiphase reaction in which gas-solid multiphase is mixed with each other. Experts and scholars at home and abroad have conducted a lot of research on it, and have put forward many viewpoints and conjectures to explain this macroscopic phenomenon based on thermodynamic analysis, but they cannot be effectively revealed. TiO 2 In the process...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J8/18B01J8/24C01G23/02
CPCB01J8/1836B01J8/18B01J8/24B01J8/1809C01G23/022
Inventor 温良英陈杨鑫彭琴杨帆白晨光张生富尹国亮王建鑫
Owner CHONGQING UNIV
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