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1. 发明申请

WO2006071025A1 PROCESS FOR REFINING OF 2,6-NAPHTHALENE DICARBOXYLIC ACID 审中-公开
标题翻译：精制2,6-萘二甲酸的方法
公开(公告)号：WO2006071025A1
公开(公告)日：2006-07-06
申请号：PCT/KR2005/004459
申请日：2005-12-22
申请人： SK CHEMICALS CO., LTD. , SHIM, Hyun-Sup , SHIN, Yong-Jun , LEE, Jong-In , ROH, Hang-Duk
发明人： SHIM, Hyun-Sup , SHIN, Yong-Jun , LEE, Jong-In , ROH, Hang-Duk
IPC分类号： C07C51/42 , C07C63/38
CPC分类号： C07C51/487 , C07C63/38
摘要： The present invention relates to a process for refining 2,6-naphthalene dicarboxylic acid, and particularly to a process for refining of 2,6-naphthalene dicarboxylic acid comprising the steps of; a) mixing a crude 2,6-naphthalene dicarboxylic acid, amine compound, and a solvent mixture of solvent and nonsolvent; b) dissolving crude 2,6-naphthalene dicarboxylic acid and amine compound by heating the mixture obtained from step a); c) crystallizing 2,6-naphthalene dicarboxylic acid amine salt by cooling the resultant solution of step b) and filtering and d) recovering 2,6-naphthalene dicarboxylic acid by deamination of the filtered 2,6-naphthalene dicarboxylic acid amine salt in crystalline form through the thermal process, characterized in that the process further comprises at least a step of selected from the group consisting of the steps of: i ) After step c), dissolving the filtered 2,6-naphthalene dicarboxylic acid amine salt in crystalline form in the solvent mixture and inputting the resultant solution to step c) and i i ) After step of c), concentrating the remaining filtrate, crystallizing 2,6-naphthalene dicarboxylic acid amine salt, and filtering, and then inputting the filtered 2,6-naphthalene dicarboxylic acid amine salt to step a)
摘要翻译：本发明涉及一种精制2,6-萘二羧酸的方法，特别涉及一种精制2,6-萘二甲酸的方法，包括以下步骤： a）将粗制2,6-萘二甲酸，胺化合物与溶剂和非溶剂的溶剂混合物混合; b）通过加热从步骤a）获得的混合物来溶解粗2,6-萘二甲酸和胺化合物; c）通过冷却步骤b）的所得溶液并过滤d）结晶2,6-萘二羧酸胺盐，并且d）通过过滤的2,6-萘二甲酸胺盐的结晶脱色来回收2,6-萘二羧酸形成通过热处理，其特征在于该方法还包括至少一个选自以下步骤的步骤：i）在步骤c）之后，将过滤的2,6-萘二甲酸胺盐溶解成结晶形式在溶剂混合物中并将所得溶液输入步骤c），和ii）在c）步骤之后，浓缩剩余的滤液，结晶2,6-萘二甲酸胺盐，过滤，然后输入过滤的2,6- 萘二羧酸胺盐进行步骤a）

2. 发明申请

WO2004013071A3 METHOD FOR REFINING 2,6-NAPHTHALENE DICARBOXYLIC ACID 审中-公开
公开(公告)号：WO2004013071A3
公开(公告)日：2004-02-12
申请号：PCT/KR2003/000917
申请日：2003-05-09
申请人： SK CHEMICALS CO., LTD. , LEE, Jong-In , SHIM, Hyun-Sup , SHIN, Yong-Jun , ROH, Hang-Duk
发明人： LEE, Jong-In , SHIM, Hyun-Sup , SHIN, Yong-Jun , ROH, Hang-Duk
IPC分类号： C07C63/38
摘要： The present invention relates to a method for refining 2,6-naphthalene dicarboxylic acid, and particularly to a method for refining 2,6-naphthalene dicarboxylic acid comprising recrystallizing crude 2,6-naphthalene dicarboxylic acid in the form of an amine salt using a solvent comprising a protic polar solvent selected from the group consisting of an alcohol, water, and a mixture thereof, and an acetate. In accordance with the invention, 2,6-naphthalene dicarboxylic acid can be obtained with excellent purity and color, and at the same time, it can be obtained in an economical and environmentally friendly way because the acetate, which is a byproduct of the oxidation process, is used as a solvent.

3. 发明申请

WO2004013071A2 METHOD FOR REFINING 2,6-NAPHTHALENE DICARBOXYLIC ACID 审中-公开
标题翻译：精制2,6-萘二羧酸的方法
公开(公告)号：WO2004013071A2
公开(公告)日：2004-02-12
申请号：PCT/KR0300917
申请日：2003-05-09
申请人： SK CHEMICALS CO LTD , LEE JONG-IN , SHIM HYUN-SUP , SHIN YONG-JUN , ROH HANG-DUK
发明人： LEE JONG-IN , SHIM HYUN-SUP , SHIN YONG-JUN , ROH HANG-DUK
IPC分类号： C07C51/42 , C07C51/43 , C07C51/487 , C07C63/38 , C07C
CPC分类号： C07C51/43 , C07C63/38
摘要： The present invention relates to a method for refining 2,6-naphthalene dicarboxylic acid, and particularly to a method for refining 2,6-naphthalene dicarboxylic acid comprising recrystallizing crude 2,6-naphthalene dicarboxylic acid in the form of an amine salt using a solvent comprising a protic polar solvent selected from the group consisting of an alcohol, water, and a mixture thereof, and an acetate. In accordance with the invention, 2,6-naphthalene dicarboxylic acid can be obtained with excellent purity and color, and at the same time, it can be obtained in an economical and environmentally friendly way because the acetate, which is a byproduct of the oxidation process, is used as a solvent.
摘要翻译：精制2,6-萘二甲酸的方法技术领域本发明涉及精制2,6-萘二甲酸的方法，特别涉及精制2,6-萘二甲酸的方法，该方法包括：使用胺将2,6-萘二甲酸粗品以胺盐形式重结晶包含选自醇，水和它们的混合物以及乙酸酯的质子极性溶剂的溶剂。根据本发明，可以以优异的纯度和颜色获得2,6-萘二甲酸，并且同时可以以经济和环境友好的方式获得，因为作为氧化副产物的乙酸酯过程，被用作溶剂。

4. 发明申请

WO2004011411A1 METHOD OF PRODUCING TRIMELLITIC ACID 审中-公开
标题翻译：生产三叶酸的方法
公开(公告)号：WO2004011411A1
公开(公告)日：2004-02-05
申请号：PCT/KR2003/000023
申请日：2003-01-07
申请人： SK CHEMICALS CO., LTD. , ROH, Hang-Duk , LEE, Jong-In , SHIM, Hyun-Sup , KIM, Byung-Hui , CHO, Jun-Sang , LEE, Yoon-Seo
发明人： ROH, Hang-Duk , LEE, Jong-In , SHIM, Hyun-Sup , KIM, Byung-Hui , CHO, Jun-Sang , LEE, Yoon-Seo
IPC分类号： C07C51/265
CPC分类号： C07C51/265 , C07C63/307
摘要： Disclosed is a method of producing trimellitic acid through the liquid-phase oxidation of pseudocumene in acetic acid. The oxidation comprises a) conducting a first oxidation using an initial oxidizing catalytic system at 120-200¡É for 5-20 min in an oxidizing reactor, said initial oxidizing catalytic system comprising at least three compounds selected from the group consisting of cobalt compound, manganese compound, zirconium compound and bromine compound; b) conducting a second oxidation in situ at 160-220¡É for 30-60 min under addition of an additional catalytic system, said additional catalytic system comprising at least two compounds selected from the group consisting of cobalt compound, manganese compound, zirconium compound, and bromine compound; and c) completing the oxidation of pseudocumene at a temperature from 180 to 230¡É for a time from 5 to 20 min without the addition of catalysts into the reactor. The pressure is adjusted in the range from 100 to 450 psig over the steps a), b) and c).
摘要翻译：公开了通过在乙酸中的假枯烯的液相氧化制备偏苯三酸的方法。氧化包括a）在氧化反应器中，使用初始氧化催化体系在120-200℃进行5-20分钟的第一次氧化，所述初始氧化催化体系包含至少三种选自钴化合物，锰化合物，锆化合物和溴化合物; b）在160-220℃下原位进行第二氧化30-60分钟，加入另外的催化体系，所述另外的催化体系包含至少两种选自钴化合物，锰化合物，锆化合物，和溴化合物; 和c）在180-230℃的温度下完成假枯烯的氧化5至20分钟，而无需向反应器中加入催化剂。在步骤a），b）和c）之后，将压力调节在100-450psig范围内。

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