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    • 1. 发明授权
    • N-알킬피롤리돈의 새로운 합성방법
    • 制备N-烷基吡咯烷酮的新方法
    • KR100815621B1
    • 2008-03-21
    • KR1020060098199
    • 2006-10-10
    • 에스케이이노베이션 주식회사
    • 김우선유영갑박무덕
    • C07D207/267
    • A method for preparing N-alkylpyrrolidone is provided to obtain the N-alkylpyrrolidone simply and economically through high temperature and high pressure reaction of gamma-butyrolactone and alkylamine under no catalyst. A method for preparing N-alkylpyrrolidone comprises a step of reacting gamma-butyrolactone(GBL) with C6-12 alkylamine(AA) in a molar ratio of 1.00:1.00-1.80 at a temperature of 240-340 deg.C with promoting the reaction by liquefying vaporized water generated by the reaction and removing the liquefied water from a trap portion and is characterized in that a pipe connected to a reactor formed at the upper end portion of the trap portion has a U-shape and a heater is equipped at the outside of the pipe to increase the temperature of an organic phase circulated into the reactor.
    • 提供了制备N-烷基吡咯烷酮的方法,通过γ-丁内酯和烷基胺在无催化剂下进行高温高压反应,简单经济地得到N-烷基吡咯烷酮。 制备N-烷基吡咯烷酮的方法包括在240-340℃的温度下使γ-丁内酯(GBL)与1.00-12.00-1.80的摩尔比的C6-12烷基胺(AA)反应,促进反应 通过液化由反应产生的蒸发水并从捕集部分除去液化水,其特征在于,连接到形成在捕获部分的上端部分的反应器的管具有U形,并且在 在管道外部以增加循环到反应器中的有机相的温度。
    • 7. 发明公开
    • 저급 부탄올 혼합물로부터 고 순도의 초산 부틸을 제조하는방법
    • 从去除混合丁醇制备高纯度乙酸丁酯的方法
    • KR1020100065842A
    • 2010-06-17
    • KR1020080124411
    • 2008-12-09
    • 에스케이이노베이션 주식회사에스케이종합화학 주식회사
    • 김우선유영갑고재석최선
    • C07C67/48C07C67/54
    • PURPOSE: A manufacturing method of high purity acetic acid butyl is provided to effectively and economically manufacture the high purity acetic acid butyl from exhaust mix-butanol with low value. CONSTITUTION: A manufacturing method of high purity acetic acid butyl from exhaust mix-butanol comprises the following steps: adding acetic acid to the exhaust mix-but including butanol, butyl acetate, and ethyl acetate for the esterification reaction, and removing water generated from the reaction; layer-separating the mixture by neglecting the mixture, and separate-removing a lower aqueous layer by adding the water; controlling the pH into 7.5~9 by adding a base solution and neutralizing the acetic acid butyl; and obtaining the high purity acetic acid butyl by distilling the neutralized organic layer separated from the mixture.
    • 目的:提供高纯度乙酸丁酯的制造方法,以有效和经济地制造低纯度的排气混合丁醇中的高纯度乙酸丁酯。 构成:从排气混合丁醇制备高纯度乙酸丁酯的方法包括以下步骤:向排气混合物中加入乙酸,但包括丁醇,乙酸丁酯和乙酸乙酯进行酯化反应,并除去由 反应; 通过忽略混合物层分离混合物,并通过加入水分离除去下层水层; 通过加入碱溶液中和乙酸丁酯将pH控制在7.5〜9; 并通过蒸馏从混合物中分离的中和的有机层获得高纯度乙酸丁酯。
    • 8. 发明授权
    • 메틸 4-포밀벤조에이트와 디메틸테레프탈레이트의 분리방법
    • 分离甲基-4-甲基苯甲酸酯和二甲基甜菜碱的方法
    • KR100814597B1
    • 2008-03-17
    • KR1020060099881
    • 2006-10-13
    • 에스케이이노베이션 주식회사
    • 고재석김우선유영갑
    • C07C67/48C07C67/62
    • C07C67/52C07C67/60C07C69/82C07C69/76
    • A process for separating methyl 4-formyl benzoate(MFB) and dimethyl terephthalate(DMT) is provided to avoid the use of a large amount of solvent, to prevent generation of a large amount of waste water, and to realize an eco-friendly process generating no SO2 gas. A process for separating methyl 4-formyl benzoate(MFB) and dimethyl terephthalate(DMT) individually from a byproduct generated during the preparation of DMT through oxidation and esterification of p-xylene as a starting material, comprises the steps of: (a) adding an alcohol to the byproduct containing MFB, DMT, methyl-p-toluate(MPT) and methyl benzoate(MBZ), and agitating and filtering the mixture to recover DMT as a solid; (b) adding an acid to the filtrate obtained from step (a) to convert MFB into an acetal compound; (c) filtering the reaction product of step (b) at -15 to 20 deg.C to recover the remaining DMT as a solid; (d) recovering the alcohol from the filtrate of step (c) via distillation, and introducing water and an organic solvent to the residue to convert the acetal compound into MFB; and (e) filtering the reaction product of step (d) to separate MFB as a solid.
    • 提供了一种分离4-甲酰基苯甲酸酯(MFB)和对苯二甲酸二甲酯(DMT)的方法,以避免使用大量的溶剂,以防止产生大量的废水,并实现环保过程 不产生SO2气体。 通过对二甲苯氧化和酯化作为起始原料,通过DMY制备过程中产生的副产物单独分离4-甲酰基苯甲酸酯(MFB)和对苯二甲酸二甲酯(DMT)的方法包括以下步骤:(a)加入 含有MFB,DMT,甲基对甲苯甲酸酯(MPT)和苯甲酸甲酯(MBZ)的副产物的醇,并搅拌和过滤混合物以回收DMT为固体; (b)向由步骤(a)获得的滤液中加入酸以将MFB转化为缩醛化合物; (c)在-15至20℃下过滤步骤(b)的反应产物以回收剩余的作为固体的DMT; (d)通过蒸馏从步骤(c)的滤液中回收醇,并向残余物中引入水和有机溶剂以将缩醛化合物转化为MFB; 和(e)过滤步骤(d)的反应产物以分离MFB作为固体。