Preparation process for rubber vulcanization accelerator tetrabenzylthiuram disulfide

Preparation process for rubber vulcanization accelerator tetrabenzylthiuram disulfide

  • CN 102,731,355 A
  • Filed: 07/01/2012
  • Published: 10/17/2012
  • Est. Priority Date: 07/01/2012
  • Status: Active Application
First Claim
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1. the reparation technology of a tetra benzyl thiuram disulfide as rubber vulcanizing accelerator;

  • It is characterized in that;

    in the reaction kettle that fills toluene and water;

    Add dibenzyl amine, dithiocarbonic anhydride and emulsifying agent under the whipped state successively;

    After reacting 1 hour, begin to drip ydrogen peroxide 50 and carry out oxidizing reaction, controlled temperature is at 10-50 ℃

    ;

    Drip after 0.5-3 hour;

    Continue to stir 0.5-3 hour, reduce to low temperature then and carry out solid-liquid separation, the dry dithio tetra-benzyl thiram that gets.

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