Application of tin hemispheres in preparation of tin chemical products
A chemical product, tin chemical technology, applied in the field of tin deep processing, can solve the problems of equipment friction and corrosion, increase the final product manufacturing cost, reduce the quality of tin chemical products, etc. Moderate surface area effect
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Embodiment 1
[0010] The tin ingot is made into a hemispherical tin raw material, that is, tin hemisphere. The preparation method is as follows: put the tin ingot in an electric furnace and melt it into tin liquid at 240-300 °C, remove the surface oxide slag, and separate the tin liquid with a tin scoop. Pouring in a hemispherical mold cavity with a diameter of 5-20mm, after the liquid tin solidifies, turn up the mold cavity, the tin hemisphere falls off from the mold cavity under its own gravity, enters the material bag through the trough, and then The cavity is laid flat in place for the next casting.
[0011] The obtained tin hemispheres are used for the production and preparation of stannous chloride. The method is as follows: put 1025 kg of concentrated hydrochloric acid with a concentration of 36% into the reaction kettle, start stirring, put in 500 kg of tin hemispheres, and control the reaction temperature between 50 and 80 ° C. After the reaction is completed, heat up to 90-110°C f...
Embodiment 2
[0013] The tin ingot is made into a hemispherical tin raw material, that is, tin hemisphere. The preparation method is as follows: put the tin ingot in an electric furnace and melt it into tin liquid at 300-360 °C, remove the surface oxide slag, and let the tin liquid flow into the fully automatic tin In the hemisphere machine, the diameter of the mold cavity is 15-30mm, just adjust the speed and collect the cooled tin hemisphere.
[0014] The prepared tin hemispheres are used in the preparation of tin tetrachloride. The preparation method is as follows: put 1000 kg of tin hemispheres into the reaction kettle, then add chlorine gas, and control the reaction temperature between 100 and 150 ° C. After the reaction is completed, collect four tin chloride.
Embodiment 3
[0016] The tin hemispheres prepared in Example 1 are used for the production and preparation of dimethyl tin dichloride. The preparation method is as follows: put 300 kg of tin hemispheres into the reaction kettle, start stirring, and control the reaction temperature between 200 and 230° C. Add 280 kg of monochloromethane at a certain flow rate, and after the reaction is completed, distill under reduced pressure to obtain dimethyltin dichloride.
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