Karstedt catalyst and preparation method thereof

Abstract

The invention discloses a preparation method of a karstedt catalyst, the preparation method comprises the following steps: S01, weighing sodium bicarbonate and a siloxane compound containing an unsaturated group, adding into a glass reaction kettle, heating, and stirring, so that the sodium bicarbonate is dissolved and dispersed uniformly; s02, after the sodium bicarbonate is dissolved and dispersed uniformly, adding hexachloroplatinic acid hexahydrate and an organic reducing solvent into the glass reaction kettle while stirring, and uniformly stirring; s03, heating the obtained solution, and continuously stirring; s04, heating the solution again, and continuing the reaction; s05, rapidly cooling the solution, stopping stirring, and standing at normal temperature; s06, rapidly stirring the solution after standing, heating and then carrying out reduced pressure distillation; and S07, carrying out suction filtration on the obtained solution to obtain a faint yellow solution. The invention further discloses the karstedt catalyst, and the karstedt catalyst is prepared by the preparation method of the karstedt catalyst. According to the karstedt catalyst and the preparation method thereof, the reaction condition is mild, the requirement on equipment is relatively low, and the preparation cost can be reduced.

Description

technical field [0001] The invention relates to a Karstedt catalyst and a preparation method thereof, belonging to the technical field of catalyst preparation. Background technique [0002] The hydrosilylation reaction is one of the most important reactions in the synthesis of organosilicon monomers and polymers. It is an addition reaction of hydrogen-containing silane and unsaturated bond compounds under the action of a metal catalyst, in which the catalyst plays an important role. important role. At present, Karstedt catalyst is still the best choice of catalyst for hydrosilylation reaction in organosilicon industry. In the prior art, the synthesis conditions of Karstedt catalysts are relatively harsh, and the preparation process requires nitrogen protection and involves high temperature reaction conditions, which requires high equipment requirements, and the overall cost of the current Karstedt catalysts is also high. Contents of the invention [0003] The technical p...

AI Technical Summary

Problems solved by technology

In the prior art, the synthesis conditions of Karstedt catalysts are relatively harsh, and the preparation process requires nitrogen protection and involves high temperature reaction conditions, which requires high equipment requirements, and the overall cost of the current Karstedt catalysts is also high