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qinyuejun719木蟲(chóng) (正式寫(xiě)手)
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[求助]
求高手翻譯一小段合成工藝,以為參考。!
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| 在氧化釜中加入百草枯母液和濾餅,攪拌并冷卻至15℃左右,緩慢通入氯氣,控制通氯速度使反應(yīng)溫度維持在20—30℃.固體逐漸消失,顏色由紫褐色轉(zhuǎn)褐色,最后變酒紅色.通氯時(shí)間約一小時(shí),PH2左右.停止通氯,攪拌半小時(shí),得粗百草枯,含量 43%左右. |

鐵桿木蟲(chóng) (著名寫(xiě)手)
Farmer
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Ref. only: 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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