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A kind of crude titanium tetrachloride stable compound organic matter for vanadium removal and preparation method thereof

A technology of crude titanium tetrachloride and organic matter, which is applied in the direction of titanium tetrachloride and titanium halide, can solve the problems of increased content of vanadium in refined titanium tetrachloride and unstable adsorption, and achieve stable product quality, strong ability, and low The effect of the desorption phenomenon

Active Publication Date: 2021-10-08
BOHAI UNIV
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Problems solved by technology

This situation is due to the unstable adsorption of vanadium compounds by the carbon particles formed by the cracking of organic matter, and the desorption (desorption) of the vanadium compounds adsorbed on the carbon surface during the distillation process, resulting in an increase in the vanadium content in refined titanium tetrachloride

Method used

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  • A kind of crude titanium tetrachloride stable compound organic matter for vanadium removal and preparation method thereof
  • A kind of crude titanium tetrachloride stable compound organic matter for vanadium removal and preparation method thereof
  • A kind of crude titanium tetrachloride stable compound organic matter for vanadium removal and preparation method thereof

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Embodiment 1

[0045] Embodiment 1, embodiment 2, embodiment 3 except raw material and its content there are multiple options, other reaction conditions and parameters are completely consistent.

[0046] Table 2 shows the composition, physical properties and effect evaluation of the compounded organic matter. The evaluation methods in Table 3 are as follows:

[0047] Take crude carbon tetrachloride with a vanadium content of 207ppm and add organic matter, stir in a cold state for 90-120 minutes, then distill at 130-140°C for 120 minutes, collect refined titanium samples, and perform vanadium content and chromaticity detection. The vanadium content in the test result is less than 1ppm, and the chromaticity is less than 5mgK 2 Cr 2 o 7 / L -1 time is qualified.

[0048] According to the results of the evaluation effect, it can be seen that the accelerator zinc phosphate has a significant effect on the stability of vanadium removal. Adding ferric chloride and zinc phosphate to the sample ha...

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Abstract

The invention belongs to the field of vanadium removal reagents, and in particular relates to a crude titanium tetrachloride stabilized composite organic compound for vanadium removal, including synthetic base oil, paraffin oil, aromatic oil, organic acid ester, chloride and organic metal salt; The mass ratios of base oil, paraffin oil, aromatic oil, organic acid ester, chloride and organometallic salt are: 50-70:10-30:2-5:2-5:2-7:1-10. The synthetic base oil is C 8 ~C 12 The polyalpha-olefin oil; The paraffin oil is 300# paraffin oil; The aromatic oil is environmental protection aromatic oil 5#; The organic acid ester is an alkyl phosphate; The chloride is ferric chloride; The organometallic salts are zinc phosphate salts. The invention has strong ability to adsorb vanadium compounds, stable adsorption performance, and reduces the influence of vanadium compounds on the purity of titanium tetrachloride.

Description

technical field [0001] The invention belongs to the field of vanadium-removing reagents, and in particular relates to a crude titanium tetrachloride stable compound organic compound for vanadium-removing and a preparation method thereof. Background technique [0002] Titanium dioxide is widely used in coatings, plastics, papermaking and other industries. The purity of titanium tetrachloride required for the preparation of high-purity titanium is strictly required. It is required that metal compounds such as vanadium, silicon, and aluminum in titanium tetrachloride after refining are completely removed or the content is less than Below 1ppm. In the refining process of crude titanium tetrachloride, there is a problem that the removal rate of vanadium compounds decreases with the continuation of the process in the application of vanadium organic matter removal, resulting in the inability of refined titanium tetrachloride to reach the standard stably. This problem is mainly cau...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01G23/02
CPCC01G23/024C01P2006/80
Inventor 鄂涛邢振强杨姝宜刘琳钱建华肖鑫宇程颖马增英
Owner BOHAI UNIV
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