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小木虫论坛-学术科研互动平台» 学术交流区» 论文翻译 » 论文翻译求助完结子版 » 求高手翻译一小段合成工艺，以为参考！！！
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sltmac: 金币+20, 翻译EPI+1, 欢迎常来 2013-05-09 10:49:37
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The mother liquid and the filter cake of the paraquat were added into the oxidation reactor. After cooling down to ca. 15C while stirring, chlorine gas was slowly introduced by controling the flow rate to keep the reaction temperature at ca. 20-30C. During this process, the solid gradually disappeared, and the color of the reaction mixture gradully turned from purple brown into brown, and finally into wine red. After ca. 1 hr chlorine introduction, the pH of the reaction mixture reached to 2. Stop chlorine introduction and further stirring for 0.5 hr gave crude (raw) paraquat  with the yield of ca. 43%
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