【摘 要】
：
以双氧水为氧化剂,硫化促进剂M和环己胺为原料合成促进剂CBS,配比环己胺∶促进剂M∶H2O2=2.5∶1∶1.2,反应温度为38℃～42℃,双氧水(15％)滴加时间为1.5h.双氧水在氧化过程中,部
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以双氧水为氧化剂,硫化促进剂M和环己胺为原料合成促进剂CBS,配比环己胺∶促进剂M∶H2O2=2.5∶1∶1.2,反应温度为38℃～42℃,双氧水(15％)滴加时间为1.5h.双氧水在氧化过程中,部分促进剂M会被双氧水氧化为苯并噻唑,导致CBS的收率在85％左右,消耗太高,不具备竞争优势.本文介绍了通过回收苯并噻唑,再加入硫黄,在一定的条件下合成促进剂M,用合成的M合成CBS,进而提高收率,使合成CBS的收率达到96％(以M记),与次氯酸钠法的收率相当,产品纯度达99％,为优级.这样不仅杜绝了生产过程中废盐的产生,产品的收率也不受影响.
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