A kind of synthetic method of tin tetrachloride

A technology of tin tetrachloride and synthesis method, which is applied in the field of deep processing of tin, can solve problems such as violent smoke generation, cumbersome operation, and deteriorating operating environment, and achieve the effects of increasing yield, sufficient reaction, and improving quality

Active Publication Date: 2017-11-21
盐城金穗亚克力有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method is cumbersome to operate, violently smokes when transferring the product, deteriorates the operating environment, and affects the synthesis efficiency and quality
And the gas-solid reaction mode of this metal tin particle and chlorine needs to consume a large amount of metal tin, and reaction yield is low, and productive rate is lower

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0020] The synthetic method of tin tetrachloride of the present invention, it adopts the following steps:

[0021] First melt the tin particles, and then spray the molten tin fluid vertically onto the surface of the high-speed rotating roller through the nozzle; there are several spherical grooves on the surface of the roller, and the fluid that can be sprayed onto the surface of the roller flows into the groove to prolong the stay of the fluid on the surface Time, make it properly cooled, so that the particle size uniformity of the fluid in the groove is better after being thrown to the atomization chamber; The diameter of the opening on the surface of the roller is preferably 0.5-1mm, and the mass flow rate of the fluid injection should be 6-8g / s, the vertical distance between the nozzle and the roller is 0.01-0.1mm, and the diameter of the roller used at the same time is 40 —50mm, the rotation speed of the roller is 300-350r / min; the tin droplets thrown to the atomization c...

Embodiment 1

[0023] The tin particles are melted, and then the molten tin fluid is sprayed vertically to the surface of the rotating roller with grooves through the nozzle; the opening diameter of the groove on the surface of the roller is 0.5 mm, the mass flow rate of the fluid injection is 6g / s, the nozzle and The vertical distance between the rollers is 0.01mm, the diameter of the rollers is 40mm, and the rotation speed of the rollers is 300r / min; at the same time, in the atomization chamber, the angle with the horizontal direction is maintained at 45°, and the angle is 0.15m 3 / h, 30m / s flow rate into the chlorine gas impact tin droplets and react, the reaction temperature is maintained at 100 ℃, and finally collect tin tetrachloride from the bottom of the spray chamber. After analysis, the purity of tin tetrachloride is about 99.2%, and the yield of the whole synthesis process reaches 85%.

Embodiment 2

[0025] The tin particles are melted, and then the molten tin fluid is sprayed vertically to the surface of the rotating roller with grooves through the nozzle; the opening diameter of the groove on the surface of the roller is 0.7 mm, the mass flow rate of the fluid injection is 7g / s, the nozzle and The vertical distance between the rollers is 0.05mm, the diameter of the rollers is 45mm, and the rotation speed of the rollers is 320r / min; at the same time, in the atomization chamber, the angle between the horizontal direction and the horizontal direction is maintained at 60° and the rotation speed is 0.12m 3 / h, 30m / s flow rate into the tin drop chlorine gas and reaction, the reaction temperature maintained at 125 ℃, and finally collected from the bottom of the atomization chamber tin tetrachloride. After analysis, the purity of tin tetrachloride is about 99.8%, and the yield of the whole synthesis process reaches 89%.

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PUM

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Abstract

The invention relates to the field of tin deep processing, in particular to a synthetic method of stannic chloride. The synthetic method includes the following steps that tin granules are fused; fluid obtained after fusion is vertically sprayed to the surface of a roller rotating at a high speed from top to bottom through a nozzle; the fluid is thrown to an atomizing chamber on one side under rotation of the roller, and tin drops are formed; chlorine is introduced into the atomizing chamber from bottom to top to react with the tin drops; chlorine remaining after the reaction is discharged from the upper side of the atomizing chamber and is collected; liquid stannic chloride generated in the reaction flows out from the lower side of the atomizing chamber and is collected. According to the synthetic method, the sprayed fluid is smashed under the centrifugal force of the rotating roller, then the tin drops are impacted by high-speed chlorine, the tin drops and chlorine are sufficiently mixed and react, generated stannic chloride can flow to the bottom of the atomizing chamber from top to bottom all the time under the effect of gravity, the reaction is sufficient, and thus the quality of the product can be improved; besides, continuous production can be achieved, and thus the yield can be increased.

Description

technical field [0001] The invention relates to the field of deep processing of tin, in particular to a synthesis method of tin tetrachloride. Background technique [0002] Tin tetrachloride is the main raw material of organotin compounds, and the international consumption of organotin compounds used in PVC products and heat stabilizers is increasing year by year. Anhydrous tin tetrachloride can be used as a raw material and chlorinating agent for organotin synthesis, coal softener in the textile industry, manufacturing blueprints, photosensitive paper, additives for lubricating oil, and tin plating. At present, most of the contracts for tin tetrachloride are intermittent operations in which tin particles or anhydrous stannous chloride react with chlorine gas. When the amount of preparation is large, it is necessary to stop the reaction halfway, take out the liquid product again and again, then replenish tin particles, and then continue to introduce chlorine gas. This meth...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01G19/08
CPCC01G19/08C01P2006/80
Inventor 易鉴荣林荔琍唐臻吴坚林荔珊
Owner 盐城金穗亚克力有限公司
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