Purification method for continuously synthesizing rubber vulcanization accelerator MBT

The invention discloses a purification method for continuous synthesis of a rubber vulcanization accelerator MBT, and relates to the technical field of rubber vulcanization accelerators MBT, and the purification method comprises the following steps: step 1, preparation of a crude product M, step 2,...

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Bibliographic Details
Main Authors LUO CHENGWEI, WANG YING, CAO XUJUN, LI XIANLING, ZHAO RUIGANG
Format Patent
LanguageChinese
English
Published 22.12.2023
Subjects
CHEMISTRY
HETEROCYCLIC COMPOUNDS
METALLURGY
ORGANIC CHEMISTRY
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Summary:The invention discloses a purification method for continuous synthesis of a rubber vulcanization accelerator MBT, and relates to the technical field of rubber vulcanization accelerators MBT, and the purification method comprises the following steps: step 1, preparation of a crude product M, step 2, alkali dissolution separation, and step 3, oxidation acceleration. The method comprises the following steps: putting carbon disulfide and aniline into a high-pressure reaction kettle for heating and pressurizing reaction to obtain a crude rubber vulcanization accelerator M, adding the crude rubber vulcanization accelerator M into an alkaline solution to decompose organic matters in the crude rubber vulcanization accelerator M, and adding oxidants sodium hypochlorite and ammonia water into the alkali-dissolved mixture to obtain the rubber vulcanization accelerator M. The organic matter decomposition rate of the crude rubber vulcanization accelerator M can be increased, and the dissolution range is shortened, so that
Bibliography:Application Number: CN202311217902