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    • 2. 发明公开
    • Process for preparing diaryl carbonate
    • 制备二氧化碳的方法
    • KR20100115319A
    • 2010-10-27
    • KR20100035157
    • 2010-04-16
    • BAYER MATERIALSCIENCE AG
    • OOMS PIETERBULAN ANDREASRECHNER JOHANNWEBER RAINERTRAVING MICHAELBUTS MARCVANDEN EYNDE JOHAN
    • C07C68/02C02F1/72C07C68/08C07C69/96
    • C01D3/04C07C68/02C07C69/96
    • PURPOSE: A manufacturing method of diaryl carbonate is provided to obtain an outcome with the high purity, by re-circulating a process wastewater solution generated from manufacturing the diaryl carbonate. CONSTITUTION: A manufacturing method of diaryl carbonate comprises the following steps: forming phosgene by reacting chlorine with carbon monoxide; forming a reactive wastewater solution containing the diaryl carbonate and alkali metal chloride, by reacting the phosgene with aqueous alkali metal-containing salt and monophenol; separating the diaryl carbonate, and post-processing; increasing the concentration of the reactive wastewater solution containing the remained alkali metal chloride; and electrochemically oxidizing the reactive wastewater solution to form the chlorine, alkali metal hydroxide, and hydrogen.
    • 目的:提供碳酸二芳基酯的制备方法,通过重新循环由制备碳酸二芳酯生成的工艺废水溶液,获得高纯度的结果。 构成:碳酸二芳基酯的制造方法包括以下步骤:通过氯与一氧化碳反应形成光气; 通过使光气与含碱金属盐和单酚反应形成含有碳酸二芳基酯和碱金属氯化物的反应性废水溶液; 分离碳酸二芳酯和后处理; 增加含残留碱金属氯化物的反应性废水溶液的浓度; 并对反应性废水进行电化学氧化,形成氯,碱金属氢氧化物和氢。