Method for treating titanium tetrachloride-containing waste liquid

A titanium waste liquid, a certain amount of technology, applied in the field of titanium-containing waste liquid treatment, can solve the problems of increasing the difficulty of waste water treatment, and achieve the effects of reducing the amount of waste treatment, saving treatment costs, and saving water

Inactive Publication Date: 2013-04-10
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem solved by the present invention: the present invention provides a method for treating titanium-containing waste liquid, by using milk of lime to directly react with the titanium-containing waste liquid flowing out from the bottom of the distillation tower to generate a...

Method used

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  • Method for treating titanium tetrachloride-containing waste liquid

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Mix 100g of slaked lime and 100g of water in a lime milk storage tank to make lime milk, then add the lime milk into the kneader first, then add 100g of titanium-containing waste liquid into the kneader, and mix well. The reactor adopts a water jacket to lower the temperature, and the addition rate of the titanium-containing waste liquid is controlled so that the temperature during the reaction does not exceed 80°C. After the reaction is completed, 300g of solid residue is finally formed, which can be further disposed of.

Embodiment 2

[0023] Embodiment 2: 100g slaked lime is mixed with 100g water in the milk of lime storage tank, is configured into milk of lime, then first milk of lime is joined in the screw mixer, then 50g titanium-containing waste liquid is added in the screw mixer, And stir well. The spiral mixer adopts a water jacket to cool down, and controls the addition speed of the titanium-containing waste liquid so that the temperature during the reaction does not exceed 80°C. After the reaction is completed, 250 g of solid residue is finally formed, which can be further disposed of.

Embodiment 3

[0024] Implementation 3: Mix 100g of slaked lime and 100g of water in a lime milk storage tank to prepare lime milk, then first add the lime milk into the kneader, then add 150g of titanium-containing waste liquid into the kneader, and mix thoroughly uniform. The kneader adopts a water jacket to lower the temperature, and controls the addition rate of the titanium-containing waste liquid so that the temperature during the reaction does not exceed 90°C. After the reaction is completed, 350 g of solid residue is finally formed, which can be further disposed of.

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Abstract

The invention discloses a method for treating a titanium-containing waste liquid, which belongs to the field of treatment of industrial waste liquids. The method comprises the following process steps of: preparing white lime (Ca(OH)2) and water into lime milk according to a certain proportion in a lime milk storage tank; putting a certain amount of the prepared lime milk into a reactor; and directly adding a certain amount of titanium-containing waste liquid into the reactor, controlling the adding speed of the titanium-containing waste liquid, keeping the reaction temperature below or equal to 90 DEG C, and finally reacting to form solid waste residues TiO2/CaCl2.nH2O. White lime is taken as an alkali neutralizing agent, and the titanium-containing waste liquid directly undergoes a hydrolysis neutralizing reaction with lime milk without a hydrolysis reaction, so that the amount of water needed in the conventional method is saved, and solid waste residues are taken as a final treatment product and are convenient to transport; and moreover, conventional measures such as burning and landfilling can be adopted in a subsequent treatment way, so that the treatment cost is saved.

Description

technical field [0001] The invention belongs to the field of industrial waste liquid treatment, and relates to a treatment method for titanium-containing waste liquid, and more particularly relates to a treatment method for titanium-containing waste liquid produced in the production process of polyolefin catalysts. Background technique [0002] In the polyolefin industry, the most widely used Ziegler-Natta catalyst is a high-efficiency magnesium chloride carrier catalyst based on magnesium chloride, which mainly uses magnesium chloride as the carrier, titanium tetrachloride as the active component, and internal and external electron donors. composition. As we all know, in the preparation process of Ziegler-Natta catalyst, a large amount and excessive amount of titanium tetrachloride need to be used, so in addition to the output catalyst product, a large amount of titanium-containing mother liquor will be produced in the production process, which contains unreacted Titanium ...

Claims

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Application Information

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IPC IPC(8): A62D3/35A62D101/24A62D101/49
Inventor 李正琪程学文李海龙万国晖李昕阳侯秀华
Owner CHINA PETROLEUM & CHEM CORP
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