Clean production technology of dazomet raw medicine
一种清洁生产、隆原药的技术,应用在农药领域,达到环境无污染、提高生产效率、反应得率高的效果
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[0011] In order to deepen the understanding of the present invention, the present invention will be further described below in conjunction with examples, which are only used to explain the present invention and do not constitute a limitation to the protection scope of the present invention.
[0012] A clean production process of damelong technical, its implementation process is as follows:
[0013] Salt-forming process: add 40% methylamine aqueous solution and water into the salt-forming reaction kettle, stir, cool down to below 30°C, add carbon disulfide dropwise, keep warm for several hours after the dropwise addition is completed, let stand for stratification, and transfer the upper layer of water phase into The next step reaction is carried out in the ring-closing kettle, and the lower oil phase is mainly excess carbon disulfide, which is put into the storage tank and returned to the salt-forming kettle in the next round of feeding;
[0014] Cycling process: the water phas...
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