近日,德州绿霸精细化工有限公司毒死蜱原药生产项目获得国家质检总局颁发的工业产品生产许可证。该毒死蜱原药项目以四氯吡啶为原料,合成产品纯度和收率高,三废排放量降低,适合大规模工业化生产。据悉,国内毒死蜱传统生产多采用三氯乙酰氯法工艺,再与丙烯腈在催化剂作用下,经加成、环合、芳构化成盐、合成制得毒死蜱。该合成工艺操作环境差,中间体三氯吡啶酚钠外观偏深,不加处 Recently, Texas Green Chemical Co., Ltd. Green Papers chlorpyrifos original drug production project was awarded the AQSIQ industrial production permit. The chlorpyrifos original drug project to tetrachloropyridine as raw materials, synthetic products, high purity and yield, reduce emissions of waste, suitable for large-scale industrial production. It is reported that the traditional production of chlorpyrifos trichloroacetic acid chloride process more commonly used, and then with the role of the catalyst under the action of the catalyst, the addition, cyclization, aromatization into salt, the synthesis of chlorpyrifos. The synthesis process operating environment is poor, the intermediate sodium trichloropyridine phenolic appearance of deep, not elsewhere