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发明公开
CN110066257A 一种2-甲基-4-异噻唑啉-3-酮的提纯方法 有权

一种2-甲基-4-异噻唑啉-3-酮的提纯方法
摘要：
本发明属于有机物提纯技术领域，具体涉及一种2-甲基-4-异噻唑啉-3-酮的提纯方法。本发明的2-甲基-4-异噻唑啉-3-酮的提纯方法包括以下步骤：将2-甲基-4-异噻唑啉-3-酮粗品溶于有机溶剂中，然后过滤得滤液；除去滤液中的有机溶剂，得固体，然后对固体进行洗涤、混合溶剂重结晶处理。采用本发明的提纯方法提纯得到的2-甲基-4-异噻唑啉-3-酮的纯度达到99.9％，有效提高了2-甲基-4-异噻唑啉-3-酮粗品的纯度。
摘要（英）：

The invention belongs to the technical field of organic matter purification, and particularly relates to a purification method of 2-methyl-4-isothiazolin-3-one. The purification method of the 2-methyl-4-isothiazolin-3-one comprises the following steps that a 2-methyl-4-isothiazolin-3-one crude product is dissolved in an organic solvent, and then the mixture is filtered to obtain a filtrate; the organic solvent in the filtrate is removed to obtain a solid, then the solid is washed, and re-crystallization is carried out on the mixed solvent. The purity of the 2-methyl-4-isothiazolin-3-one obtained through purification by using the purification method reaches 99.9%, and the purity of the 2-methyl-4-isothiazolin-3-one crude product is effectively improved.

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