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Method for reducing content of chloride ions in sodium stannate by using ultrasonic waves

A technology of chloride ion content and sodium stannate, applied in chemical instruments and methods, tin compounds, inorganic chemistry, etc., can solve problems such as reducing chloride ion content in sodium stannate products, achieve environmental friendliness, high efficiency, and improve product quality. quality effect

Inactive Publication Date: 2016-04-13
LIUZHOU BAIRENTE ADVANCED MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, we have not found any relevant reports on how to reduce the chloride ion content in sodium stannate products during the production of sodium stannate

Method used

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Examples

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Comparison scheme
Effect test

Embodiment 1

[0016] A method utilizing ultrasonic waves to reduce chloride ion content in sodium stannate, comprising the following steps:

[0017] (1) Solution preparation: Add 200g of sodium perchlorstannate product with a chloride ion mass fraction of 0.38% into a 500mL flask, then add 100mL of absolute ethanol to it, and mix well to obtain a solution;

[0018] (2) Heating: raise the temperature of the solution prepared in step (1) to 50°C;

[0019] (3) Ultrasonic washing: place the heated solution in step (2) in an ultrasonic cleaning tank and vibrate ultrasonically for 30 minutes;

[0020] (4) Static filtration: the solution treated in step (3) was left to stand, then filtered and dried to obtain a high-purity sodium stannate product with a mass fraction of chloride ions of 0.0036%.

Embodiment 2

[0022] A method utilizing ultrasonic waves to reduce chloride ion content in sodium stannate, comprising the following steps:

[0023] (1) Solution preparation: Add 150g of sodium perchlorstannate product with a chloride ion mass fraction of 0.21% into a 500mL flask, then add 75mL of absolute ethanol to it, and mix well to obtain a solution;

[0024] (2) Heating: raise the temperature of the solution prepared in step (1) to 55°C;

[0025] (3) Ultrasonic washing: place the heated solution in step (2) in an ultrasonic cleaning tank and vibrate ultrasonically for 30 minutes;

[0026] (4) Static filtration: the solution treated in step (3) is allowed to stand, then filtered and dried to obtain a high-purity sodium stannate product with a mass fraction of chloride ions of 0.0072%.

Embodiment 3

[0028] A method utilizing ultrasonic waves to reduce chloride ion content in sodium stannate, comprising the following steps:

[0029] (1) Solution preparation: Add 150g of sodium perchlorstannate product with a chloride ion mass fraction of 0.42% into a 500mL flask, then add 50mL of absolute ethanol to it, and mix well to obtain a solution;

[0030] (2) Heating: raise the temperature of the solution prepared in step (1) to 60°C;

[0031] (3) Ultrasonic washing: place the heated solution in step (2) in an ultrasonic cleaning tank and vibrate ultrasonically for 40 minutes;

[0032] (4) Static filtration: the solution treated in step (3) was left to stand, then filtered and dried to obtain a high-purity sodium stannate product with a mass fraction of chloride ions of 0.0067%.

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Abstract

The invention relates to a method for reducing the content of chloride ions in sodium stannate by using ultrasonic waves. The method comprises the following steps: (1) solution preparation: preparing a solution from a high-chlorine sodium stannate product and absolute ethyl alcohol according to a certain solid-liquid ratio; (2) heating: a step of heating the solution to 50 to 60 DEG C; (3) ultrasonic washing: placing the solution in an ultrasonic washing tank for ultrasonic concussion for 30 to 40 min; and (4) standing and filtering: after standing of the solution, carrying out filtering and drying so as to obtain a sodium stannate product with low chlorine content. The method provides a novel approach for removing chloride ions in the high-chlorine sodium stannate product; after treatment with the method, the high-purity sodium stannate product with chloride ion content of less than 0.01% can be obtained, so product quality is improved and influence of chloride ions on application of the sodium stannate product is reduced; and the method is simple and effective and provides a novel approach for preparation of the high-purity sodium stannate product.

Description

technical field [0001] The invention relates to the field of deep processing of nonferrous metal products, in particular to a method for reducing the content of chloride ions in sodium stannate by using ultrasonic waves. Background technique [0002] With the development of tin chemical industry, more and more tin chemical products are applied to various fields of electroplating. Sodium stannate (Na 2 SnO 3 ) As a tin deep-processing chemical product, it has been widely used in alkaline electroplating. In the production process of sodium stannate, the alkaline hydrolysis method is usually used to react the tin-containing material with sodium hydroxide under the condition of oxidant at high temperature. However, due to the diversification of impurity ions in the tin-containing material, especially the chloride ion Difficult to realize separation, has had a strong impact on the quality of sodium stannate product, also brings very big influence to sodium stannate in electrop...

Claims

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Application Information

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IPC IPC(8): C01G19/00
CPCC01G19/00
Inventor 杨育兵叶有明农永萍韦成果谢雪珍王运龙荣贵能张诚林成旭
Owner LIUZHOU BAIRENTE ADVANCED MATERIALS
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