Method of refining titanium tetrachloride to remove vanadium by employing drainage oil

A technology of titanium tetrachloride and crude titanium tetrachloride, which is applied in the direction of titanium tetrachloride and titanium halide, can solve the problems of no efficient utilization method, large output of waste oil, and high cost, and achieve low cost and cost saving , the effect of simple operation

Active Publication Date: 2017-08-04
PANGANG GROUP RESEARCH INSTITUTE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The technical problem to be solved by the present invention is: the waste oil has a large output and low cost, and there is no efficient utilization method; the existing titanium tetrachloride vanadium removal reagent has a high cost

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Embodiment 1 uses waste oil to purify titanium tetrachloride to remove vanadium

[0029] The specific operation process is as follows:

[0030] Measure the saturated fatty acid content in the waste oil to be 60%. The waste oil and oleic acid are mixed and preheated to 136-140 ℃ in a preheating kettle according to the mass ratio of 5:7, and the saturated fatty acid in the mixture is 25%. The mixed oil is added through the organic inlet of the vanadium removal purification tower, and the mass ratio of the mixed oil to the crude titanium tetrachloride is adjusted to 1:3. The mixed oil and the crude titanium tetrachloride react in the purification tower, and the gas after the removal of vanadium After being condensed by the condenser of the refining tower, the titanium tetrachloride liquid after vanadium removal is obtained.

Embodiment 2

[0031] Embodiment 2 uses waste oil to purify titanium tetrachloride to remove vanadium

[0032] The specific operation process is as follows:

[0033] Measure the saturated fatty acid content in the waste oil to be 60%. The waste oil and oleic acid are mixed and preheated to 136-140 ℃ according to the mass ratio of 10:7 in the preheating kettle, and the saturated fatty acid in the mixture is 35%. The mixed oil is added through the organic inlet of the vanadium removal purification tower to adjust the VOCl in the crude titanium tetrachloride of the mixed oil. 3 The mass ratio of 1:3, the mixed oil reacts with crude titanium tetrachloride in the refining tower, and the gas after vanadium removal is condensed by the refining tower condenser to obtain the titanium tetrachloride liquid after vanadium removal.

Embodiment 3

[0034] Embodiment 3 uses waste oil to purify titanium tetrachloride to remove vanadium

[0035] The specific operation process is as follows:

[0036] Measure the saturated fatty acid content in the waste oil to be 60%. The waste oil and oleic acid are mixed and preheated to 136-140 ℃ according to the mass ratio of 10:3.3 in the preheating kettle, and the saturated fatty acid in the mixture is 45%. The mixed oil is added through the organic inlet of the vanadium removal purification tower to adjust the VOCl in the mixed oil and crude titanium tetrachloride. 3 The mass ratio of 1:3, the mixed oil reacts with crude titanium tetrachloride in the refining tower, and the gas after vanadium removal is condensed by the refining tower condenser to obtain the titanium tetrachloride liquid after vanadium removal.

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PUM

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Abstract

The invention belongs to the field of titanium tetrachloride refining and in particular relates to a method of refining titanium tetrachloride to remove vanadium by employing drainage oil. In order to solve the problems that an existing remove-removal reagent for titanium tetrachloride is high in cost and the like as the drainage oil is great in output and low in cost and is not efficiently utilized, the invention provides the method of refining titanium tetrachloride to remove vanadium by employing drainage oil. The method comprises the following steps of: stirring and mixing the drainage oil and oleic acid in a pre-heating kettle; preheating the mixture to 136-140 DEG C; adding the preheated mixture into a remove-removal rectifying tower; introducing coarse titanium tetrachloride gas; and collecting the refined titanium tetrachloride without vanadium in a remove-removal rectifying tower condenser. By reasonably matching the drainage oil and the oleic acid, the method of refining titanium tetrachloride to remove vanadium not only provides a novel utilization path for cheap drainage oil, but also saves the cost of refining titanium tetrachloride to remove vanadium. The method provided by the invention is simple to operate and low in cost and has an important economical benefit.

Description

technical field [0001] The invention belongs to the field of titanium tetrachloride refining, in particular to a method for removing vanadium by using waste oil to refine titanium tetrachloride. Background technique [0002] Waste oil is a general term for all kinds of inferior oils, generally including slop oil, waste frying oil, waste oil produced by food and related enterprises, etc. Waste oil is usually used as a raw material for biodiesel, but due to its low price, some waste oil will flow directly to the dining table illegally, causing great harm to consumers. In order to avoid the harm of waste oil flowing directly to the dining table, it has become an inevitable trend to develop new application methods. [0003] Titanium tetrachloride is the most important intermediate product for the production of titanium dioxide by the chloride method and the production of sponge titanium by the Krall method. VOCl usually exists in crude titanium tetrachloride 3 Form of vanadiu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01G23/02
CPCC01G23/024
Inventor 李冬勤陆平李良周丽杜明
Owner PANGANG GROUP RESEARCH INSTITUTE CO LTD
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