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Chemcial Industry and Engineering 2004, Vol. 21 Issue (2) :87-90    DOI:
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Synthesis of 2,6-Dichlorobenzonitrile
LIU Rui-xiang,YU Zhong-shen(Dalian Institute of Research and Design of Chemical Industry,Liaoning Dalian 116023,China)
(Dalian Institute of Research and Design of Chemical Industry,Liaoning Dalian 116023,China

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Abstract 2,6-Dichlorobenzonitrile was synthesized from 2,6-dichloroaniline by diazo reaction.Effects of reaction temperature,ratio of H_2SO_4 to CH_3COOH and pH value on the yield and purity of product were studied.The highest yield of 2,6-dichlorobenzonitrile was obtained under the conditions that n(H_2SO_4)∶n(CH_3COOH)=34∶1～1∶1,reaction temperature was 50℃ and the pH was between 7～9.After processed,the quality of cyanide waste-water was up to the emission standard.
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Received 2004-03-15; published 2004-03-15
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LIU Rui-xiang,YU Zhong-shen.Synthesis of 2,6-Dichlorobenzonitrile[J]  Chemcial Industry and Engineering, 2004,V21(2): 87-90
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