The synthesis technique of dimethyltin chloride

The synthesis technique of dimethyltin chloride

  • CN 102,516,288 B
  • Filed: 11/22/2011
  • Issued: 09/02/2015
  • Est. Priority Date: 11/22/2011
  • Status: Active Grant
First Claim
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1. a synthesis technique for dimethyltin chloride, is characterized in that:

  • described synthesis technique comprises the steps;

    1) tin, catalyzer and tin tetrachloride are joined in reactor, described catalyst charge is the 5-15% of tin weight, the add-on of described tin tetrachloride is the 1-10% of tin weight, 160 DEG C-190 DEG C are warming up to according to heating schedule, described catalyzer is dimethyl sulphide or DMSO, and described heating schedule is that per minute heats up 1 DEG C-8 DEG C;

    2) control at 175-215 DEG C in temperature of reaction, reaction pressure controls at 0.5-1.5Mpa, stirs and add the methyl chloride gas of vaporization in described reactor, until reaction terminates;

    3) after reaction terminates, control at 180-250 DEG C in temperature of reaction, reaction pressure controls at 1.3-1.5Mpa, insulation reaction 2--4 hour, by the obtained dimethyltin chloride of distillation after insulation terminates, described distillation in air distillation, and receives gas reactor temperature at the cut of 188 DEG C-200 DEG C.

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