Method of preparing oxidation methyl tin

Abstract

A method of preparing oxidation methyl tin belongs to the technical field of preparing method of chemical products. The method comprises the steps as follows: adding chloride methyl tin into a reactor, adding with water to stir until totally solving, heating up to 50 to 60 DEG. C; slowing and uniformly dropping alkali metal hydroxide solution or ammonia, the reaction temperature being 30 to 110 DEG. C, the reaction time being 2 to 5 hours, the reaction terminal being controlled at PH value 7 to 9, finally filtering the reaction solution, washing and purifying, the obtained solid being the oxidation methyl tin. The method of preparing oxidation methyl tin is simple and the production is easily controlled; the prepared products have excellent and stable quality and high yield. The prepared oxidation methyl tin is easily stored and transported, and is conveniently applied, and can be the raw materials of preparing thiol methyl tin and organic acid methyl tin such that the cost of preparing thiol methyl tin and organic acid methyl tin is obviously reduced; the production process has no pollution to the environment, and the production is easily controlled, the prepared products have excellent and stable quality.

Description

technical field [0001] The invention belongs to the technical field of preparation methods of chemical products, in particular to a preparation method of methyl tin oxide. Background technique [0002] Chinese patent CN01813770.9 reports that organic tin oxides are formed by reacting powdered tin metal and alcohol at a high temperature of about 200-400°C. According to this method, monoalkyltin, dialkyltin and trialkyltin are produced in a certain yield. Alkyl tin oxide, this method introduces alcohol into tin powder to generate organic tin oxide at high temperature, and cools down to collect the product. The disadvantage is that alcohol has potential safety hazards at high temperature and the conversion rate is low, so it is not easy for industrial production. At present, no relevant technical reports on other methods for preparing methyltin oxide have been found. Contents of the invention [0003] For the above-mentioned problems existing in the prior art, the object of ...

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Problems solved by technology

[0002] Chinese patent CN01813770.9 reports that organic tin oxides are formed by reacting powdered tin metal and alcohol at a high temperature of about 200-400°C. According to this method, monoalkyltin, dialkyltin and trialkyltin are produced in a certain yield. Alkyl tin oxide, this method introduces alcohol into tin powder to generate organic tin oxide at high temperature, and cools down to collect the product. The disadvantage is that alcohol has potential safety hazards at high temperature and the conversion rate is low, so it is not easy for industrial production

At present, there is no relevant technical report on other methods for preparing methyl tin oxide