Zhejiang University

Zhejiang Huangma Technology Co., Ltd.

Zhejiang Huangma Shangyi New Material Co., Ltd.

Zhejiang Lukean Chemical Co., Ltd.

Zhejiang Huangma Chemical New Polymer Material Co., Ltd

Nan Dong

Zhirong Chen

Hong Yin

Yifeng Jin

Yuanrong Yu

Xingjun Zhao

Meijun Zhang

Yuejiang Zhang

Majishi Wang

Weisong Wang

The present invention relates to a method for preparing 2-methylallyl chloride from 1,2-dichloroisobutane. The method is characterized in that 1,2-dichloroisobutane and a sodium hydroxide aqueous solution are used as raw materials; reactive rectification is performed in a combined rectifying tower to eliminate hydrogen chloride so as to obtain 2-methylallyl chloride. A plate tower is provided at the lower part of the combined rectifying tower; a packing tower is provided at the upper part of the combined rectifying tower; an inner reflux condenser is provided at the top of the combined rectifying tower. The sodium hydroxide aqueous solution is added from a first plate of the plate tower; and 1,2-dichloroisobutane is added from the middle part of the plate tower. The method has the advantages that the raw material 1 and 1,2-dichloroisobutane is fully converted; the selectivity of the 2-methylallyl chloride is high.

Method for preparing 2-methylallyl chloride from 1,2-dichloroisobutane

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Shaoxing, China

Nan Dong