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71. 发明授权

US07355071B2 Method for preparing 2,6-naphthalene dicarboxylic acid 有权
标题翻译： 2,6-萘二甲酸的制备方法
公开(公告)号：US07355071B2
公开(公告)日：2008-04-08
申请号：US11090054
申请日：2005-03-28
申请人： Masaya Kitayama , Hiroyuki Wakamori
发明人： Masaya Kitayama , Hiroyuki Wakamori
IPC分类号： C07C51/42
CPC分类号： C07C51/09 , C07C63/38
摘要： Disclosed is an improved method for preparing 2,6-naphthalene dicarboxylic acid from di-lower alkyl 2,6-naphthalene dicarboxylate, which is characterized in that hydrolyzing di-lower alkyl 2,6-naphthalene dicarboxylate in a specified amount of water in the presence of specified amount of hydrophobic organic solvent and an additive; that hydrolyzing di-lower alkyl 2,6-naphthalene dicarboxylate in a specific amount of a mixed solvent of non-water miscible alcohol and water; or in that di-lower alkyl 2,6-naphthalene dicarboxylate is hydrolyzed in two steps wherein the 1st step comprises hydrolyzing said ester in a water miscible organic solvent in the presence of a small amount of water, and the 2nd step comprises further hydrolyzing the reaction.
摘要翻译：本发明公开了一种从2,6-二萘基二羧酸二低级烷基酯制备2,6-萘二羧酸的改进方法，其特征在于将2,6-萘二羧酸二低级烷基酯在规定量的水中存在规定量的疏水性有机溶剂和添加剂; 在特定量的非水混溶性醇和水的混合溶剂中水解2,6-萘二甲酸二低级烷基酯; 或者在2,6-二羧酸二低级烷基酯中以两个步骤水解，其中第一步包括在少量水存在下在水混溶性有机溶剂中水解所述酯，第二步包括进一步水解反应。

72. 发明申请

US20070299235A1 Apparatus and method for recovering acetic acid and catalyst in process for preparation of 2,6-naphthalenedicarboxylic acid 有权
标题翻译：在制备2,6-萘二羧酸的方法中回收乙酸和催化剂的装置和方法
公开(公告)号：US20070299235A1
公开(公告)日：2007-12-27
申请号：US11475099
申请日：2006-06-27
申请人： Ik-Hyun Kwon , Young-Gyo Choi , Byung-Jun Song , Jong-Cheul Ji
发明人： Ik-Hyun Kwon , Young-Gyo Choi , Byung-Jun Song , Jong-Cheul Ji
IPC分类号： C08G63/02 , B01D35/18
CPC分类号： B01D61/147 , C07C51/42 , C07C51/43 , C07C51/44 , C07C63/38
摘要： An apparatus and a method for effectively recovering acetic acid and catalyst from a mother liquor discharged from a series of processes including an oxidation process, a crystallization process and a solid-liquid separation process, in a continuous process for preparing naphthalenedicarboxylic acid by oxidizing dimethylnaphthalene in the presence of an oxygen-containing gas and an acetic acid solvent, using a catalyst system comprising a transition metal such as cobalt or manganese, and a bromine-based compound, are provided.
摘要翻译：在从包括氧化工艺，结晶工艺和固液分离工艺在内的一系列工艺排出的母液中有效回收乙酸和催化剂的设备和方法，在通过氧化二甲基萘制备萘二甲酸的连续方法中提供了使用包含过渡金属如钴或锰的催化剂体系和溴基化合物的含氧气体和乙酸溶剂的存在。

73. 发明授权

US07238833B2 Production of aromatic carboxylic acids 有权
标题翻译：芳香羧酸的生产
公开(公告)号：US07238833B2
公开(公告)日：2007-07-03
申请号：US10833442
申请日：2004-04-28
申请人： Derek Alexander Graham , Paul Anthony Hamley , Raymond Oliver , Martyn Poliakoff , Duncan C. Woodcock , Thomas Iikenhans
发明人： Derek Alexander Graham , Paul Anthony Hamley , Raymond Oliver , Martyn Poliakoff , Duncan C. Woodcock , Thomas Iikenhans
IPC分类号： C07C51/16
CPC分类号： C07C51/265 , Y02P20/544 , Y02P20/582 , C07C63/15 , C07C63/06 , C07C63/26 , C07C63/38 , C07C63/04
摘要： A process for the production of an aromatic carboxylic acid comprising contacting in the presence of a catalyst, within a continuous flow reactor, one or more precursors of the aromatic carboxylic acid with an oxidant, such contact being effected with said precursor(s) and the oxidant in an aqueous solvent comprising water under supercritical conditions or near supercritical conditions close to the supercritical point such that said one or more precursors, oxidant and aqueous solvent constitute a substantially single homogeneous phase in the reaction zone, wherein the contact of at least part of said precursor with said oxidant is contemporaneous with contact of said catalyst with at least part of said oxidant.
摘要翻译：一种制备芳族羧酸的方法，包括在连续流动反应器内在催化剂存在下使芳族羧酸的一种或多种前体与氧化剂接触，这种接触与所述前体和氧化剂在包含水的水性溶剂中，在超临界条件或接近超临界点的接近超临界条件下，使得所述一种或多种前体，氧化剂和水性溶剂在反应区中构成基本上单一的均相，其中至少部分所述具有所述氧化剂的前体同时具有所述催化剂与所述氧化剂的至少一部分的接触。

74. 发明授权

US07153998B2 Method for refining 2,6-naphthalene dicarboxylic acid 有权
标题翻译：精制2,6-萘二甲酸的方法
公开(公告)号：US07153998B2
公开(公告)日：2006-12-26
申请号：US10523265
申请日：2003-05-09
申请人： Jong-In Lee , Hyun-Sup Shim , Yong-Jun Shin , Hang-Duk Roh
发明人： Jong-In Lee , Hyun-Sup Shim , Yong-Jun Shin , Hang-Duk Roh
IPC分类号： C07C51/42
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：本发明涉及一种精制2,6-萘二甲酸的方法，特别涉及一种精制2,6-萘二甲酸的方法，该方法包括用胺盐形式的粗2,6-二
甲酸二甲酸重结晶，使用溶剂，其包含选自醇，水及其混合物的质子极性溶剂和乙酸酯。根据本发明，可以获得具有优异纯度和颜色的2,6-萘二甲酸，同时可以以经济和环保的方式获得，因为作为氧化副产物的乙酸酯工艺，用作溶剂。

75. 发明申请

US20060167310A1 Preparation method of naphthalene dicarboxylic acid 审中-公开
标题翻译：萘二羧酸的制备方法
公开(公告)号：US20060167310A1
公开(公告)日：2006-07-27
申请号：US10523874
申请日：2003-05-02
申请人： Jong-In Lee , Han-Seok Kim , Byung-Hee Kim , Hang-Duk Roh , Youn-Seo Lee , Joon-Sang Jo
发明人： Jong-In Lee , Han-Seok Kim , Byung-Hee Kim , Hang-Duk Roh , Youn-Seo Lee , Joon-Sang Jo
IPC分类号： C07C51/255
CPC分类号： C07C51/265 , C07C63/38
摘要： The present invention relates to a method for the preparation of naphthalene dicarboxylic acid, and more particularly, to a method for the preparation of naphthalene dicarboxylic acid by oxidizing dimethylnaphthalene with oxygen in air in the presence of acetic acid solvent using the metal catalysts of cobalt and manganese, and using bromine as a reaction initiator, wherein the temperature of said oxidation reaction is 155 to 180° C. The method for the preparation of naphthalene dicarboxylic acid of the invention enables the preparation of naphthalene dicarboxylic acid having high purity with a high yield in an economical way at a low temperature.
摘要翻译：本发明涉及一种萘二羧酸的制备方法，更具体地说，涉及一种在乙酸溶剂存在下，用氧在空气中氧化二甲基萘的萘二甲酸的制备方法，该方法使用钴的金属催化剂和锰，并使用溴作为反应引发剂，其中所述氧化反应的温度为155〜180℃。本发明的萘二甲酸的制备方法能够以高产率制备高纯度的萘二甲酸在低温下以经济的方式。

76. 发明申请

US20050187403A1 Process for producing 1,3-naphthalenedicarboxylic acid 审中-公开
标题翻译： 1,3-萘二甲酸的制备方法
公开(公告)号：US20050187403A1
公开(公告)日：2005-08-25
申请号：US11063970
申请日：2005-02-24
申请人： Hiroshi Ogawa , Junya Nishiuchi , Mitsuharu Kitamura , Kinji Kato
发明人： Hiroshi Ogawa , Junya Nishiuchi , Mitsuharu Kitamura , Kinji Kato
IPC分类号： C07C51/255 , C07C51/265 , C07C63/38
CPC分类号： C07C51/265 , C07C63/38
摘要： 1,3-Naphthalenedicarboxylic acid is produced by oxidizing 1,3-dialkylnaphthalene in a liquid-phase with an oxygen-containing gas in the presence of a C2-C6 lower aliphatic carboxylic acid solvent and a catalyst comprising a heavy metal and a bromine compound. By regulating the ratio of the total number of bromine atoms fed into a reaction system to the total number of 1,3-dialkylnaphthalene molecules fed into the reaction system within a specific range, 1,3-naphthalenedicarboxylic acid is efficiently produced with low costs. Using 1,3-dimethylnaphthalene, as the starting 1,3-dialkylnaphthalene, which is produced by isomerizing dimethylnaphthalenes in a liquid phase in the presence of a catalyst comprising hydrogen fluoride and boron trifluoride together with a C5-C10 alicyclic saturated hydrocarbon having a five-membered or six-membered ring structure, a highly pure 1,3-naphthalenedicarboxylic acid is efficiently produced.
摘要翻译： 1,3-二萘基二羧酸是通过在C 2 -C 6 -C 6的存在下用含氧气体在液相中氧化1,3-二烷基萘而制备的，低级脂族羧酸溶剂和包含重金属和溴化合物的催化剂。通过调节进料到反应体系中的溴原子总量与进料到反应体系中的1,3-二烷基萘分子的总数在特定范围内的比例，可以低成本有效地制备1,3-萘二羧酸。使用1,3-二甲基萘作为起始1,3-二烷基萘，其通过在包含氟化氢和三氟化硼的催化剂存在下在液相中异构化二甲基萘一起制备，与C 5 N 5 具有5元或6元环结构的-C 10脂肪族饱和烃，高纯度的1,3-萘二羧酸。

77. 发明授权

US06833472B2 Process for the purification of aromatic carboxylic acids 失效
标题翻译：芳族羧酸的纯化方法
公开(公告)号：US06833472B2
公开(公告)日：2004-12-21
申请号：US10312353
申请日：2003-01-09
申请人： Franco Codignola
发明人： Franco Codignola
IPC分类号： C07C5142
CPC分类号： C07C51/487 , C07C63/307 , C07C63/16 , C07C63/24 , C07C63/38 , C07C63/26
摘要： A novel process for the purification of crude aromatic carboxylic acids, such as, for example, terephthalic acid, orthophthalic acid, trimesic acid, isophthalic acid, 2,6-naphthalenedicarboxylic acid and pyromellitic acid, which are obtained by oxidising the corresponding aromatic precursors is described; the process is based on the subsequent oxidation in heterogeneous phase of the crude product in aqueous solution.
摘要翻译：通过氧化相应的芳族前体获得的用于纯化粗芳族羧酸的新方法，例如对苯二甲酸，邻苯二甲酸，均苯三酸，间苯二甲酸，2,6-萘二甲酸和均苯四酸，描述; 该方法基于随后在水溶液中的粗产物的非均相中的氧化。

78. 发明授权

US06765113B2 Production of aromatic carboxylic acids 失效
标题翻译：芳香羧酸的生产
公开(公告)号：US06765113B2
公开(公告)日：2004-07-20
申请号：US09905094
申请日：2001-07-13
申请人： Derek Alexander Graham , Paul Anthony Hamley , Raymond Oliver , Martyn Poliakoff , Duncan Woodcock , Thomas Ilkenhans
发明人： Derek Alexander Graham , Paul Anthony Hamley , Raymond Oliver , Martyn Poliakoff , Duncan Woodcock , Thomas Ilkenhans
IPC分类号： C07C5116
CPC分类号： C07C51/265 , Y02P20/544 , Y02P20/582 , C07C63/15 , C07C63/06 , C07C63/26 , C07C63/38 , C07C63/04
摘要： A process for the production of an aromatic carboxylic acid comprising contacting in the presence of a catalyst, within a continuous flow reactor, one or more precursors of the aromatic carboxylic acid with an oxidant, such contact being effected with said precursor(s) and the oxidant in an aqueous solvent comprising water under supercritical conditions or near supercritical conditions close to the supercritical point such that said one or more precursors, oxidant and aqueous solvent constitute a substantially single homogeneous phase in the reaction zone, wherein the contact of at least part of said precursor with said oxidant is contemporaneous with contact of said catalyst with at least part of said oxidant.
摘要翻译：一种制备芳族羧酸的方法，包括在连续流动反应器内在催化剂存在下使芳族羧酸的一种或多种前体与氧化剂接触，这种接触与所述前体和氧化剂在包含水的水性溶剂中，在超临界条件或接近超临界点的接近超临界条件下，使得所述一种或多种前体，氧化剂和水性溶剂在反应区中构成基本上单一的均相，其中至少部分所述具有所述氧化剂的前体同时具有所述催化剂与所述氧化剂的至少一部分的接触。

79. 发明授权

US06717009B2 Method for making high-purity naphthalenedicarboxylic acid 失效
标题翻译：制备高纯度萘二羧酸的方法
公开(公告)号：US06717009B2
公开(公告)日：2004-04-06
申请号：US10265401
申请日：2002-10-07
申请人： Masahiro Motoyuki , Tomoki Uemura , Koji Yamamoto
发明人： Masahiro Motoyuki , Tomoki Uemura , Koji Yamamoto
IPC分类号： C07C5142
CPC分类号： C07C51/487 , C07C51/265 , C07C51/43 , C07C51/47 , C07C63/26 , C07C63/38
摘要： A high-purity naphthalenedicarboxylic acid is produced by a method including Steps [1] and [2]: In Step [I], a raw mixture of crude terephthalic acid and crude naphthalenedicarboxylic acid is dissolved into high-temperature high-pressure water to form a dibasic acid solution wherein the crude naphthalenedicarboxylic acid content is 0.1 to 10 mass percent of the crude terephthalic acid content, the dibasic acid solution is brought into contact with hydrogen in the presence of a catalyst. In Step [II], the resultant in the dibasic acid solution is crystallized by multiple stages while the temperature and the pressure are reduced for each stage, and acid mixtures containing enriched naphthalenedicarboxylic acid or enriched terephthalic acid are obtained by solid-liquid separation.
摘要翻译：通过包括步骤[1]和[2]的方法制备高纯度萘二羧酸：在步骤[I]中，将粗对苯二甲酸和粗萘二甲酸的粗混合物溶解在高温高压水中形成二萘酸溶液，其中粗萘二羧酸含量为粗对苯二甲酸含量的0.1〜10质量％，二元酸溶液在催化剂存在下与氢接触。在步骤[II]中，将二元酸溶液中的所得物在多个阶段中结晶，同时每个阶段降低温度和压力，通过固液分离获得含有富含萘二甲酸或富对苯二甲酸的酸混合物。

80. 发明授权

US06642412B2 Process for producing a high purity aromatic polycarboxylic acid 有权
标题翻译：高纯度芳族多元羧酸的制备方法
公开(公告)号：US06642412B2
公开(公告)日：2003-11-04
申请号：US10215773
申请日：2002-08-12
申请人： Ryusuke Shigematsu , Masayoshi Hayashi , Shinichi Nagao , Jitsuo Oishi , Akio Hashimoto
发明人： Ryusuke Shigematsu , Masayoshi Hayashi , Shinichi Nagao , Jitsuo Oishi , Akio Hashimoto
IPC分类号： C07C5142
CPC分类号： C07C51/44 , C07C51/43 , C07C51/487 , C07C63/333 , C07C63/38
摘要： A process for producing a high purity aromatic polycarboxylic acid by purifying a crude aromatic polycarboxylic acid in accordance with the steps of (I) forming an amine salt of an aromatic polycarboxylic acid from the crude polycarboxylic acid and an amine, (II) continuously decomposing the salt in a salt decomposition reactor in operations of (i) supplying an aqueous solution of the amine salt of an organic polycarboxylic acid formed in the step of forming a salt, (ii) removing the amine and water by distillation under heating and (iii) taking out a slurry containing crystallized aromatic polycarboxylic acid, and (III) separating and recovering crystals of the aromatic polycarboxylic acid from the slurry which is taken out in the step of decomposing the salt. A high purity aromatic polycarboxylic acid having excellent hue and large particle diameters can be produced from a crude aromatic polycarboxylic acid industrially with stability at a low cost of production in accordance with a process having a simple construction.
摘要翻译：通过根据（I）从粗多羧酸和胺形成芳族多元羧酸的胺盐的步骤，通过纯化粗芳族多元羧酸来制备高纯度芳族多元羧酸的方法，（II）连续分解在（i）提供在形成盐的步骤中形成的有机多元羧酸的胺盐的水溶液的操作中的盐分解反应器中的盐，（ii）在加热下通过蒸馏除去胺和水，以及（iii）取出含有结晶的芳族多元羧酸的浆料，（III）从分解盐的步骤中取出的浆料中分离回收芳族多元羧酸的结晶。一种具有优异色调和大颗粒的高纯度芳族多元羧酸直径可以由工业上粗芳香族多元羧酸以与生产成本相当低的稳定性生产具有简单的结构。

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