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Ultrafine dibutyltin oxide and preparation method thereof

A technology of dibutyl tin dichloride and fine dibutyl, which is applied in chemical instruments and methods, organic chemistry, tin organic compounds, etc., and can solve problems such as obvious coating defects, uneven particles, and poor catalytic effect , to achieve the effect of low concentration of soluble ions and fine and uniform particles

Active Publication Date: 2016-10-12
云南锡业锡化工材料有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The produced product has large particles and uneven particles, which are prone to shortcomings such as poor catalytic effect and obvious coating defects in the application of the coating industry, which makes it unable to be used in polyester coatings and electrophoretic paints.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] Weigh 24g of sodium hydroxide solid into a 500ml four-neck flask, dissolve with 150g of water, add 4 drops of surfactant for later use, weigh 80g of dibutyltin dichloride into a beaker and heat to 60°C, slowly introduce Atomization was carried out in an ultrasonic atomizer, the flask was turned on to stir, and the atomized gas flow was introduced into a four-necked flask 1 cm below the lye liquid surface through a glass tube for the first reaction, and the reaction temperature was controlled at 60°C. After the reaction was completed, the water was removed by suction filtration, and then 10 g of ammonia water was added to carry out the second or third reaction. Washing with deionized water, suction filtration, and drying to finally obtain 63.5 g of dibutyltin oxide product. The test indicators are as follows: Sn: 47.25%; Cl: 0.0120%; moisture 98%.

Embodiment 2

[0016] Weigh 30g of sodium hydroxide solid into a 1000ml beaker, dissolve it with 200g of water, add 6 drops of surfactant, turn on the stirrer; weigh 100g of dibutyltin dichloride, heat to 70°C, and pass through the airflow atomizer Spray it into a beaker, and control the temperature to 70°C for the first reaction. After the reaction was completed, the water was removed by suction filtration, and then 10 g of ammonia water was added to carry out the second or third reactions. Washing with deionized water, suction filtration, and drying to finally obtain 80.1 g of dibutyltin oxide product. The test indicators are as follows: Sn: 47.36%; Cl: 0.0090%; moisture 95%.

Embodiment 3

[0018] Weigh 10g of sodium carbonate solid and put it into a 500ml four-necked flask, dissolve it with 200g of water, add 80g of ammonia water with a concentration of 20%, add 6 drops of surfactant, turn on the stirrer, and weigh 100g of dibutyltin dichloride Heat it to 65°C, spray it into a beaker through an airflow atomizer, and control the temperature to 45°C for the first reaction. After the reaction was completed, the water was removed by suction filtration, and then 10 g of ammonia water was added to carry out the second or third reactions. Washing with deionized water, suction filtration, and drying to finally obtain 79.6g of dibutyltin oxide product. The test indicators are as follows: Sn: 47.23%; Cl: 0.0076%; moisture 98%.

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PUM

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Abstract

The invention relates to an ultrafine dibutyltin oxide and a preparation method thereof, and belongs to the technical field of preparation of ultrafine powder catalysts. The preparation method concretely comprises the following steps: 1, heating dibutyltin dichloride to a certain temperature in order to liquefy dibutyltin dichloride , and introducing the liquefied dibutyltin dichloride to an atomizer; 2, starting the atomizer to atomize the liquid dibutyltin dichloride ; 3, spraying atomized dibutyltin dichloride flow into a reaction kettle equipped with an alkali liquid, fully mixing the flow with the alkali liquid, and carrying out a primary reaction; 4, separating the obtained liquid after the primary reaction ends, adding the alkali liquid, carrying out a secondary reaction, and carrying out a tertiary reaction; and 5, washing a material obtained in step 4 with water, centrifuging the washed material, carrying out vacuum drying, discharging the dried material, and weighing the discharged material to obtain the required ultrafine dibutyltin oxide product. Ultrafine dibutyltin oxide synthesized through the method is fine and uniform, has high purity, and can be used as an electrophoresis paint catalyst.

Description

technical field [0001] The invention belongs to the technical field of preparation of ultrafine powder catalysts, and in particular relates to an ultrafine dibutyltin oxide and a preparation method thereof. Background technique [0002] Dibutyltin oxide, English name Dibutyltin oxide, is a white or light yellow solid powder, mainly used as an intermediate in the production of butyltin series heat stabilizers, and a catalyst for esterification reactions, such as silicone rubber curing agents, polyester coating catalysts, etc. . [0003] At present, the production and preparation method of dibutyltin oxide is prepared by directly dropping dibutyltin dichloride into lye after being liquefied, such as the preparation method involved in the patent CN101665510B. The produced product has large particles and uneven particles, which are prone to shortcomings such as poor catalytic effect and obvious coating defects in the application of the coating industry, which makes it unable to...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07F7/22
CPCC07F7/2224
Inventor 蒋学泉廖少峰姚俊艾维华
Owner 云南锡业锡化工材料有限责任公司
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