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Refining method of titanium tetrachloride

A titanium tetrachloride and refining method technology, applied in the direction of titanium halide, etc., can solve the problems of vanadium content and unsatisfactory effect, and achieve the effect of easy cleaning, good vanadium removal effect and low price

Pending Publication Date: 2014-12-10
仙桃市中星电子材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the technical problems such as the unsatisfactory effect of removing vanadium from existing organic matter, which still contains impurities such as vanadium, carbon powder, and silicon tetrachloride, and needs further treatment, the invention provides a clean, simple, efficient, and good impurity removal effect. Titanium tetrachloride refining method

Method used

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  • Refining method of titanium tetrachloride
  • Refining method of titanium tetrachloride
  • Refining method of titanium tetrachloride

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Example 1: Crude TiCl 4 The crude titanium head tank 1 is sent into the heater 4 through the flow valve 3, and the heater 4 makes the crude TiCl 4 heated to 120 °C, followed by crude TiCl 4 Sent to the mixer 5, 100 parts of paraffin oil, 80 parts of saturated fatty acid, 2 parts of p-phenylenediamine, 0.3 part of 2,2,4-trimethyl 1,2-dihydroquinoline polymer were mixed The organic solution is sent into the mixer 5, and the organic solution and the hot TiCl are mixed in the mixer 5. 4 The mixing ratio is 1:1, paraffin oil and saturated fatty acid will be carbonized to form activated carbon to convert VOCl 3 Reduction and adsorption of other impurities, p-phenylenediamine, 2,2,4-trimethyl 1,2-dihydroquinoline polymers can control the reaction rate and help crude TiCl 4 The impurities in the mixture are separated out, and then the material is sent to the first still 6 for distillation, and most of the vanadium-containing impurities are discharged into the vanadium mud ta...

Embodiment 2

[0028] Example 2: Crude TiCl 4 The crude titanium head tank 1 is sent into the heater 4 through the flow valve 3, and the heater 4 makes the crude TiCl 4 heated to 130 °C, followed by crude TiCl 4 It is sent to the mixer 5; 100 parts of paraffin oil, 90 parts of saturated fatty acid, 3 parts of p-phenylenediamine, 0.4 part of 2,2,4-trimethyl 1,2-dihydroquinoline polymer are mixed The organic solution is sent into the mixer 5, and the organic solution and the hot TiCl are mixed in the mixer 5. 4 The mixing ratio is 1:1, paraffin oil and saturated fatty acid will be carbonized to form activated carbon to convert VOCl 3 Reduction and adsorption of other impurities, p-phenylenediamine, 2,2,4-trimethyl 1,2-dihydroquinoline polymers can control the reaction rate and help crude TiCl 4 The impurities in the mixture are separated out, and then the material is sent to the first still 6 for distillation, and most of the vanadium-containing impurities are discharged into the vanadium m...

Embodiment 3

[0031] Example 3: Crude TiCl 4 The crude titanium head tank 1 is sent into the heater 4 through the flow valve 3, and the heater 4 makes the crude TiCl 4 heated to 140 °C, followed by crude TiCl 4 It is sent to the mixer 5; 100 parts of paraffin oil, 100 parts of saturated fatty acid, 4 parts of p-phenylenediamine, 0.5 part of 2,2,4-trimethyl 1,2-dihydroquinoline polymer are mixed The organic solution is sent into the mixer 5, and the organic solution and the hot TiCl are mixed in the mixer 5. 4 The mixing ratio is 1:1, paraffin oil and saturated fatty acid will be carbonized to form activated carbon to convert VOCl 3 Reduction and adsorption of other impurities, p-phenylenediamine, 2,2,4-trimethyl 1,2-dihydroquinoline polymers can control the reaction rate and help crude TiCl 4 The impurities in the mixture are separated out, and then the material is sent to the first still 6 for distillation, and most of the vanadium-containing impurities are discharged into the vanadium ...

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Abstract

The invention provides a refining method of titanium tetrachloride. The refining method comprises the following steps: feeding crude TiCl4 into a heat exchanger from an overhead tank; preparing a mixed organic solution from paroline, saturated fatty acid, p-phenylenediamine and 2,2,4-trimethyl-1,2-dihydroquinoline polymer and feeding the mixed organic solution into a mixer; adding the crude TiCl4 in a semi-finished product tank into a float valve tower from the middle upper part of the tower, heating the float valve tower to the range of 60-100 DEG C so that the high-boiling-point titanium tetrachloride moves downwards to go into a second distillation kettle from the bottom of the float valve tower, and then carrying out next step of refining vanadium removal treatment. The refining method of the titanium tetrachloride has the advantages that the adopted organic matters are cheap and wide in source, a rectification tower has a self-cleaning function so that a copper wire in the tower can be reused, and the byproducts generated such as compounds containing vanadium and silicon are recycled by use of a recovery tank and clean production is realized. The refining method of the titanium tetrachloride succeeds in improving the shortcomings of vanadium removal by use of organic matters at present, and has excellent economic benefit and social benefit.

Description

technical field [0001] The invention relates to a production method of titanium tetrachloride, in particular to a method for refining titanium tetrachloride. Background technique [0002] Titanium tetrachloride is an important intermediate product in the production of titanium dioxide, titanium sponge and titanium series products. The crude titanium tetrachloride produced in industry is a reddish-brown turbid liquid, which contains many impurities and the composition is very complex. Crude titanium tetrachloride must be refined, otherwise the processing performance of downstream titanium products will be greatly affected due to the influence of impurities. The principle of refining generally uses distillation to remove FCCl 3 High boiling point impurities, SiCl is removed by rectification 4 Waiting for low boiling point impurities, using chemical methods such as replacement to remove VOCl in impurities with similar boiling points 3 . At present, the commonly used vanadi...

Claims

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Application Information

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IPC IPC(8): C01G23/02
Inventor 赵中友吴兵生陈连章黄敏资美勇张国瑞肖银华
Owner 仙桃市中星电子材料有限公司
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