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Preparation method of tin antimony oxide nano-powder

A technology of nano-powder and tin-antimony oxide, which is applied in the field of nano-materials, can solve the problems of danger, high cost, and low product purity, and achieve the effects of reducing equipment requirements, narrow particle size distribution, and simple process

Active Publication Date: 2013-04-24
广东拓扑中润科技发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, the vapor deposition method has high requirements on equipment and high cost; the sol-gel method and microemulsion method have serious pollution, and the product obtained has low purity and uncontrollable particle size; although the precipitation method has a simple production process and low equipment requirements, it can obtain The product purity is not high, and the particle size is difficult to be effectively controlled; the hydrothermal method can obtain a product with high purity, narrow particle size distribution, and controllable particle size, but the reaction process needs to be carried out under high temperature and high pressure environment, which requires more equipment. High, there is a certain risk in the production process

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Step (1) Step: Solubbines tin nitrate and nitrate in dilute hydrochloric acid with a concentration of 3%and concentration of 36%, respectively, and then transferred to the enamel reaction kettle. Slowly add sodium hydroxide under the condition of mechanical stirring conditions.Until the pH value reaches 10, it continues to stir until tin ions and ions are completely precipitated to obtain hydroxide and hydroxide precursors.

[0034] Step (2): Filtering is separated and used to wash the hydrogen oxide and hydroxide precursor before the ion water, until the soluble substance is completely removed.

[0035] Step (3): Add 2 times water to the precursor after washing in step (2).The amount of sodium sodium sodium sodium is 5%of the total weight of the hydroxide and hydroxide precursor and water. After stirring evenly, transfer it to the water heat reactor.

[0036] Step (4): The temperature in the water heating reaction kettle is 250 ° C, and continuously reacts for 1h in a cont...

Embodiment 2

[0041] Step (1): The tin tin chloride and trichloric chloride are dissolved in dilute hydrochloric acid with a concentration of 10%and a concentration of 32%.Add ammonia until the pH value reaches 9 and continues to stir until tin ions and ions are completely precipitated to obtain hydroxide and hydroxide precursor.

[0042] Step (2): Filtering is separated and used to wash the hydrogen oxide and hydroxide precursor before the ion water, until the soluble substance is completely removed.

[0043] Step (3): Add 3 times water to the precursor after washing in step (2).The addition of sodium viralnzenezine is 3%of the total weight of the hydroxide and hydroxide precursor and water. After stirring, mix it to the water thermal reactor.

[0044] Step (4): The temperature in the water heating reaction kettle is 220 ° C, and the reaction is continuously reacted for 2h in the stirring state to make nanoplogen.

[0045] Step (5) step: After separation and drying, it is a mixture of tin oxid...

Embodiment 3

[0049] Step (1) Step: Solubbines tin nitrate and trichlot chloride in dilute hydrochloric acid with a concentration of 15%and a concentration of 30%, and then transferred to the enamel reaction kettle, slowly add hydrogen under the condition of mechanical stirring.Until the pH value reaches 8, it continues to stir until tin ions and ions are completely precipitated to obtain hydroxide and hydroxide precursor.

[0050] Step (2): Filtering is separated and used to wash the hydrogen oxide and hydroxide precursor before the ion water, until the soluble substance is completely removed.

[0051] Step (3): Add 4 times water to the forefront of the front drive to the front -drive (2) step (2).The amount is 0.5%of the total weight of the hydroxide and hydroxide precursor and water, and then mounted to the water thermal reactor after stirring.

[0052] Step (4): Control the temperature in the water heating reaction kettle to 200 ° C, continuously reacts for 3h in a continuous reaction in th...

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Abstract

The invention discloses a preparation method of a tin antimony oxide nano-powder. The method comprises the following technical steps: (1), dissolving inorganic tin salts and inorganic antimony salts in diluted hydrochloric acid and gradually adding an alkali solution to the diluted hydrochloric acid in the stirring process until tin ions and antimony ions are completely deposited, so as to obtain a tin hydroxide and antimony hydroxide precursor; (2), filtering, separating and washing the tin hydroxide and antimony hydroxide precursor; (3), adding water and a dispersing agent to the tin hydroxide and antimony hydroxide precursor; and after uniformly stirring, continuously stirring and reacting the tin hydroxide and antimony hydroxide precursor in a hydrothermal reaction kettle at the temperature of 150-250 DEG C so as to obtain a nanometer paste; and (4), after separating and drying the nanometer paste, calcining the nanometer paste and crushing the nanometer paste by airflow so as to obtain the tin antimony oxide nano-powder. Through adoption of the preparation method disclosed by the invention, requirements of production process on equipment are effectively reduced; and a nanometer material with high performance and high purity is obtained.

Description

Technical field [0001] The present invention involves the field of nanomaterials technology, especially for a preparation method of a tin oxide nanow nanow powder. Background technique [0002] Nano -material refers to a new type of material that constitutes the grain size of the material in the range of 1 to 100nm.The size range of nanomaterials is between macro and micro, so that it shows many special physical and chemical properties in catalytic, optoelectronics, magnetism, mechanics, etc., and has many important application values. It can be widely used in electronics and communication.Biology, energy, manufacturing industry, automobile industry, aerospace and aerospace, chemical industry, new materials, environmental protection and other fields. [0003] Nano powder is the core of nanomaterials. At present, the methods of preparing nanowl powder are mainly physical and chemical methods. The nano powder is used in physical legal system.It is not suitable for large -scale prod...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01G30/00B82Y30/00
Inventor 孙仲毅吴荻
Owner 广东拓扑中润科技发展有限公司
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