Organic Tin Heat Stabilizer Of Research And Development

Organotin are kinds of high-processed tin products with high technique and high add-value. According to the state of Yunnan Province's tin mineral resources,the growth trend of tin consumption of the world and the development and enlargement of Yunnan Tin Corporation, the first practical production line of butyltin diiso octythioglycalate. a kind of PVC heat stabilizer, synthesized by Grignard method at home with rationalized configuration was built in Yunnan Tin Corporation after the optimized experiments on the basis of Nankai University's 200L-volumed synthesis experiment are finished .Mixed solvent with low proportion of low boiling point solvent is used in the preparation of Grignard reagent ,the reaction safety is henthened by the adoption of one-step method to produce terabutyltin .The synthesis of dibutyltin dichloride under comparatively low temperature is the improvement and innovation of conventional Grignard method, so the plant investment and daily operational fee can be reduced , the experiment expresses that every index of butyltin diiso octylthioglycalate and tetrabutyltin,dibutyltin dichloride, dibutyltin oxide etc, the mid-products of organotin produced by this technology is equal or superior to what contract stipulated for technologically and economically; The quality of butyltin diiso octylthioglycalate can be satisfied with the demand of the user after tentative use, tetrabutyltin can be the substitution of import one.