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Method for treating waste water and waste liquor in titanium tetrachloride industrial production process

A treatment method and industrial production technology, applied in natural water treatment, chemical instruments and methods, heating water/sewage treatment, etc., can solve problems such as damaged equipment, waste of valuable components, and environmental pollution, so as to reduce environmental pollution and improve Environmental protection standards, the effect of improving the production and operating environment

Active Publication Date: 2012-07-11
河北欧克新型材料股份有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to propose a kind of waste water, waste liquid in the whole process of industrial production of titanium tetrachloride in view of defects such as waste water, waste liquid polluting the environment, damaging equipment and waste of valuable components in the process of existing industrialized production of titanium tetrachloride. Liquid treatment methods to achieve the purpose of reducing environmental pollution, protecting production equipment, and turning waste into treasure

Method used

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  • Method for treating waste water and waste liquor in titanium tetrachloride industrial production process
  • Method for treating waste water and waste liquor in titanium tetrachloride industrial production process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] 1. Gas, liquid and solid treatment process of wastewater in the chlorination section

[0029] Regularly detect the concentration of wastewater in the wastewater collection tank. When the concentration reaches 18°-20°Be, pump it into the plate and frame filter press to filter through the acid pump. After filtering, the filtrate is discharged into the wastewater treatment tank, and stop when the flow rate of the filtrate is slow. Filtrate, clean the filter cake between the plates and frames, collect and bag the filter cake (reuse). From the treatment pool, the filtrate is continuously added to the distillation kettle by the acid pump, and at the same time, the distillation kettle is continuously heated by heat conduction oil to heat the wastewater in the kettle to boiling (105°C), and the wastewater is continuously evaporated, and the evaporated acid gas is buffered The sub-cylinder enters the water condenser to condense, and the condensate after water cooling is pure hyd...

Embodiment 2

[0035] 1. Gas, liquid and solid treatment process of wastewater in the chlorination section

[0036] With embodiment 1.

[0037] 2. Low boiling point separation and recovery treatment process of rectification waste liquid in the refining section

[0038] Pump the rectification waste liquid from the acid to the high-level temporary storage tank, adjust the flow rate, continuously flow the rectification waste liquid from the temporary storage tank into the rectification kettle, control the temperature of the rectification kettle at 128°C, and put TiCl 4 with SiCl 4 and other low-boiling point impurities, the separated refined TiCl 4 Send it to the condenser for cooling, and then enter the refining storage tank after cooling, and the residual liquid in the rectifying kettle (mainly containing SiCl 4 ) for recycling (by-product).

[0039]3. Copper and vanadium recovery and treatment process of waste acid solution containing copper and vanadium in the refining section

[0040]...

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Abstract

The invention discloses a method for treating waste water and waste liquor in a titanium tetrachloride industrial production process, which comprises a chlorination-stage waste water treatment method, a refining-stage rectification waste liquor treatment method and a refining-stage copper-vanadium containing waste acid solution treatment method, and is characterized in that the chlorination-stagewaste water treatment method is a gasification, liquidation and solidification treatment method for chlorination-stage waste water; the refining-stage rectification waste liquor treatment method is alow boiling point separating and recycling treatment method for refining-stage rectification waste liquor; and refining-stage copper-vanadium containing waste acid solution treatment method is a copper and vanadium recycling treatment method for refining-stage copper-vanadium containing a waste acid solution. The invention solves the industry problem of completely treating the waste water and thewaste liquor which are produced in the whole titanium tetrachloride production process, and has obvious effects of improving environmental protection standards, lessening environmental pollution, improving production operating environment, turning waste materials into things of value and finally reaching standard emission.

Description

technical field [0001] The invention relates to the industrial production of titanium tetrachloride, in particular to a method for treating waste water and waste liquid in the industrial production process of titanium tetrachloride. Background technique [0002] At present, the boiling method to produce titanium tetrachloride uses high-quality titanium slag as raw material and petroleum coke as a reducing agent, and reacts titanium slag with chlorine gas in a high-temperature fluidized reactor to generate titanium tetrachloride. The production process is divided into two stages, that is, the chlorination of the former stage and the refining of the latter stage. The chlorination section is mainly a chemical reaction stage, producing crude titanium tetrachloride; the refining section is mainly the impurity removal and purification stage. [0003] The wastewater produced in the chlorination section includes: washing water for equipment cleaning and flushing water for the site ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F9/10C02F1/04C01B7/07C02F103/34
Inventor 刘心天郭俊怀任伟刘景茂
Owner 河北欧克新型材料股份有限公司
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