Dibutyltin dilaurate synthesis process

Abstract

The invention discloses a dibutyltin dilaurate synthesis process, relates to the technical field of dibutyltin dilaurate synthesis, and aims at solving the problems that most of existing dibutyltin dilaurate is faint yellow after being synthesized, and if colorless materials such as transparent plastic or thin films are prepared, chromatic aberration is prone to being generated, and the effect ofa finished product is affected. The preparation method comprises the following steps: step 1, adding raw materials for preparing dibutyltin dilaurate into a reaction kettle; step 2, heating the reaction kettle to 80 DEG C, and fully mixing the raw materials for reaction for 2 hours; step 3, after the reaction is completed, cooling the reaction kettle to enable the temperature to be 10-30 DEG C, and standing to wait for solution layering; step 4, discharging the lower-layer alkaline water out of the equipment to obtain a faint yellow liquid mixture; step 5, introducing the mixture into an active carbon filter, and carrying out decolorization treatment; and step 6, carrying out drying treatment at the temperature of 100 DEG C, and carrying out filtering to obtain pure dibutyltin dilaurate.

Description

technical field [0001] The invention relates to the technical field of dibutyltin dilaurate synthesis, in particular to a synthesis process of dibutyltin dilaurate. Background technique [0002] Dibutyltin dilaurate is an organic tin additive, soluble in benzene, toluene, carbon tetrachloride, ethyl acetate, chloroform, acetone, petroleum ether and other organic solvents and all industrial plasticizers, insoluble in water. The high-boiling point multi-purpose organotin catalyst dibutyltin dilaurate circulating in the market is usually treated with special liquefaction. It is light yellow or colorless oily liquid at room temperature, and becomes white crystal at low temperature. It can be used as a plastic additive for PVC. It has excellent lubricity, transparency and weather resistance. Good resistance to sulfide pollution. It can be used as a stabilizer in soft transparent products, as a high-efficiency lubricant in hard transparent products, and can also be used as a cat...

AI Technical Summary

Problems solved by technology

[0004] The object of the present invention is to provide a kind of dibutyltin dilaurate synthetic technique, to solve the existing dibutyltin dilaurate synthesis that proposes in the above-mentioned background technology, mostly be faint yellow, if when preparing colorless materials such as transparent plastic or film, It is easy to produce color difference and affect the effect of the finished product

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