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    • 1. 发明公开
    • 방향족 디카르복실산의 제조방법
    • 制备芳香二羧酸的方法
    • KR1020120022647A
    • 2012-03-12
    • KR1020110082898
    • 2011-08-19
    • 삼성석유화학(주)
    • 김승수박경배이장원최규열
    • C07C51/285C07C51/47C07C51/50C07C63/15
    • PURPOSE: A manufacturing method of aromatic dicarboxylic acids is provided to remarkably reduce the content of impurity including an action intermediate, thereby obtaining high yield and improved quality. CONSTITUTION: A manufacturing method of aromatic dicarboxylic acids comprises: an oxidation step obtaining crude aromatic dicarboxylic acids containing aromatic dicarboxylic acid and an intermediate by oxidizing an aromatic raw compound under the presence of a reaction accelerator of peroxide and a reaction catalyst; a solid-liquid separation step obtaining crude aromatic dicarboxylic acidic cake by coagulation separating the crude carboxylic acids with mother liquid; and additionally s purification step converting the crude aromatic dicarboxylic acidic cake to aromatic dicarboxylic acids by oxidation-reduction reacting with oxygen supply source.
    • 目的:提供芳族二羧酸的制造方法,以显着降低包含作用中间体的杂质含量,从而获得高产率和提高质量。 构成:芳族二羧酸的制造方法包括:氧化步骤,在过氧化物和反应催化剂的反应促进剂的存在下,通过氧化芳族原料化合物,得到含有芳香族二羧酸的粗芳香族二羧酸和中间体; 固液分离步骤,通过将粗羧酸与母液进行凝结分离得到粗芳族二羧酸酸性饼; 并且另外的纯化步骤通过与氧供应源的氧化还原反应将粗芳族二羧酸酸性饼转化成芳族二羧酸。
    • 4. 发明公开
    • 고온고압수를 사용한 테레프탈산의 합성방법
    • 在不使用催化剂的情况下使用亚临床或超临界流体作为反应介质来合成三十一酸的方法提供比常规方法更安全和更经济的方法
    • KR1020040090348A
    • 2004-10-22
    • KR1020030024497
    • 2003-04-17
    • 한국과학기술연구원
    • 김재덕임종성이윤우김영래
    • C07C51/285
    • Y02P20/544
    • PURPOSE: A method for synthesizing terephthalic acid using a subcritical or supercritical fluid as a reaction medium is provided to reduce toxicity and erosion in a manufacturing device owing to excluding the use of a catalyst, thereby being safer and more economic as compared to the conventional methods. CONSTITUTION: The method for synthesizing terephthalic acid which includes the oxidization of para-xylene comprises the use of excessive amount of a subcritical or a supercritical fluid as a reaction medium and hydrogen peroxide or oxygen as an oxidizing agent for partial oxidization of para-xylene contained in a tank(A11), while excluding the use of a catalyst. The oxidization of para-xylene is carried out at 240-400deg.C under 220-300bar in a reactor(A4).
    • 目的:提供使用亚临界或超临界流体作为反应介质合成对苯二甲酸的方法,以减少制造装置中的毒性和侵蚀,这是因为排除使用催化剂,因此与常规方法相比更安全和更经济 。 构成:包括对二甲苯氧化的对苯二甲酸的合成方法包括使用过量的亚临界流体或超临界流体作为反应介质,过氧化氢或氧气作为用于部分氧化对二甲苯的氧化剂 在罐中(A11),而不使用催化剂。 对二甲苯的氧化在240-400℃在220-300巴下在反应器(A4)中进行。