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1. 发明授权

US6018077A Process for producing 2,6-naphthalenedicarboxylic acid 失效
标题翻译： 2,6-萘二甲酸的制备方法
公开(公告)号：US6018077A
公开(公告)日：2000-01-25
申请号：US48494
申请日：1998-03-26
申请人： Fumio Ohkoshi , Hiroshi Ogawa , Kazuo Tanaka , Masato Inari , Hiroshi Machida
发明人： Fumio Ohkoshi , Hiroshi Ogawa , Kazuo Tanaka , Masato Inari , Hiroshi Machida
IPC分类号： C07C51/265 , C07C51/16
CPC分类号： C07C51/265
摘要： A process for producing 2,6-naphthalenedicarboxylic acid comprising oxidizing 2,6-dimethylnaphthalene with a gas containing oxygen in a solvent comprising a lower aliphatic carboxylic acid in the presence of a catalyst comprising cobalt, manganese, and bromine, wherein the total amount of cobalt and manganese in the catalyst is 50 to 300 mg atom per 1 g mol of 2,6-dimethylnaphthalene, a ratio by g atom of manganese to cobalt in the catalyst is 20:1 to 4:1, and the oxidation is conducted at a temperature of 200 to 250.degree. C.; and a process as described above, wherein a mother liquor which is obtained from a slurry of a product of the oxidation via a step of solid-liquid separation is recyled to a step of oxidation after heat treatment at a temperature of 150.degree. C. or higher. In accordance with the processes, accumulation of substances which affect the oxidation adversely is prevented. Moreover, a large fraction of a mother liquor of oxidation can be recycled without decrease in the yield of the reaction, and the catalyst components and the solvent components in the mother liquor of oxidation can be utilized efficiently.
摘要翻译：一种2,6-萘二甲酸的制造方法，其特征在于，在包含钴，锰，溴的催化剂的存在下，在含有低级脂肪族羧酸的溶剂中，在含有氧的气体中，使2,6-二甲基萘氧化，催化剂中的钴和锰在每1克摩尔2,6-二甲基萘中为50〜300mg原子，催化剂中锰与钴的原子比为20：1〜4：1，氧化反应在温度为200〜250℃。和如上所述的方法，其中将通过固液分离步骤的氧化产物的浆料获得的母液在150℃的温度下再热处理至氧化步骤，或更高。根据这些方法，可以防止影响氧化的物质的积累。此外，大部分的氧化母液可以循环使用而不会降低反应的产率，并且可有效地利用氧化母液中的催化剂组分和溶剂组分。

2. 发明授权

US06500347B2 Process for recovering crystals from a slurry 有权
标题翻译：从浆料中回收晶体的方法
公开(公告)号：US06500347B2
公开(公告)日：2002-12-31
申请号：US09897610
申请日：2001-07-03
申请人： Fumio Ohkoshi , Masato Inari
发明人： Fumio Ohkoshi , Masato Inari
IPC分类号： B01D3700
CPC分类号： B01D33/09 , B01D33/60 , B01D33/663 , B01D37/00 , C07C51/43 , C07C63/26
摘要： A process for recovering crystals from a slurry which comprises supplying a slurry comprising crystals and a solvent to a rotary vacuum filter and successively conducting filtration under suction, washing, filtration under suction and cleavage of a cake continuously by rotation of a cylindrical filter medium, wherein a vapor having a same composition as that of the solvent is supplied as a blowing gas for cleaving the cake. The crystals can be continuously recovered for a long period of time without clogging of a filter medium when the crystals are recovered from a slurry by using a rotary vacuum filter.
摘要翻译：一种用于从浆料中回收晶体的方法，包括将含有晶体和溶剂的浆料供应到旋转式真空过滤器，并在抽吸下进行抽吸，洗涤，过滤，并通过圆柱形过滤介质的旋转连续切割滤饼，其中供给具有与溶剂相同的成分的蒸气作为用于裂解饼的发泡气体。当通过使用从浆料回收晶体时，可以长时间连续回收晶体而不堵塞过滤介质旋转式真空过滤器。

3. 发明授权

US06268528B1 Method of producing naphthalenedicarboxylic acid 有权
标题翻译：生产萘二甲酸的方法
公开(公告)号：US06268528B1
公开(公告)日：2001-07-31
申请号：US09432783
申请日：1999-11-03
申请人： Hiroshi Machida , Fumiya Zaima , Masato Inari , Hiroshi Watanabe , Emiko Yokose
发明人： Hiroshi Machida , Fumiya Zaima , Masato Inari , Hiroshi Watanabe , Emiko Yokose
IPC分类号： C07C5116
CPC分类号： C07C51/265 , C07C63/38
摘要： Dialkylnaphthalene is oxidized to naphthalenedicarboxylic acid in a lower aliphatic carboxylic acid solvent in the presence of a catalyst comprising a cobalt compound, a manganese compound and a bromine compound having an atomic ratio of manganese to cobalt of 0.03 to 0.5. The catalyst is supplied to the oxidation reaction zone so that the total amount of cobalt and manganese is 0.025 to 0.1 gram atom based on 1 gram mol of the dialkylnaphthalene. An oxidation product slurry is subjected to solid-liquid separation when the concentration of the naphthalenedicarboxylic acid in the slurry is 8 to 30% by weight. The process prevents the by-production of benzotricarboxylic acid such as trimellitic acid, thereby drastically reducing the incorporation of heavy metal complexes with trimellitic acid into naphthalenedicarboxylic acid crystals. The process optionally includes the addition of a polymer flocculant, this forming crystal aggregates with a large particle size and facilitating the separation of the crystals from the mother liquor.
摘要翻译：在包含钴化合物，锰化合物和原子比为锰与钴的溴化合物的催化剂存在下，在低级脂族羧酸溶剂中将二烷基萘氧化成萘二羧酸为0.03〜0.5。将催化剂供应到氧化反应区，使得钴和锰的总量基于1克摩尔的二烷基萘为0.025至0.1克原子。当浆料中萘二甲酸的浓度为8〜30重量％时，氧化产物浆液进行固液分离。该方法防止苯三甲酸如偏苯三酸的副产物，从而大大降低了与偏苯三酸的重金属络合物与萘二甲酸晶体的结合。该方法任选地包括加入聚合物絮凝剂，这种形成晶体具有大粒径的聚集体并且有利于晶体与母液的分离。

4. 发明授权

US07547803B2 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：US07547803B2
公开(公告)日：2009-06-16
申请号：US10861497
申请日：2004-06-07
申请人： Shinichi Nagao , Masato Inari , Jitsuo Oishi , Kenji Nakaya , Hiroshi Machida
发明人： Shinichi Nagao , Masato Inari , Jitsuo Oishi , Kenji Nakaya , Hiroshi Machida
IPC分类号： C07C51/42
CPC分类号： C07C51/43 , C07C51/487 , C07C63/333 , C07C63/38
摘要： A process for producing a high purity aromatic polycarboxylic acid (APA) by purification of a crude APA comprises: (I) aging a slurry of the crude APA in a first dispersion medium at 180 to 300° C. for 10 minutes or longer under stirring; (II) introducing the aged slurry of the APA into a column for substituting dispersion media, bringing the slurry into contact with a second dispersion medium and separating the resultant fluid into a fluid of the first dispersion medium containing impurities and a slurry of the second dispersion medium containing crystals of the high purity APA; and (III) separating the crystals of the high purity APA from the slurry of the second dispersion medium. A high purity APA having excellent hue and particle diameter can be industrially advantageously produced while the construction of the process is simplified and the consumption of energy is decreased.
摘要翻译：通过粗制APA的纯化生产高纯度芳族多元羧酸（APA）的方法包括：（I）在搅拌下将第一分散介质中粗APA的浆料在180-300℃下老化10分钟或更长时间 ; （II）将APA的老化浆液引入用于代替分散介质的塔中，使浆料与第二分散介质接触，并将所得流体分离成含有杂质的第一分散介质的流体和第二分散体的浆料含有高纯度APA晶体的介质; 和（III）将高纯度APA的晶体与第二分散介质的浆料分离。具有优异的色相和粒径的高纯度APA可以在工业上有利地产生，同时简化了工艺的构造并降低了能量的消耗。

5. 发明授权

US07569707B2 Production method of highly pure pyromellitic dianhydride 有权
标题翻译：高纯度均苯四酸二酐的制备方法
公开(公告)号：US07569707B2
公开(公告)日：2009-08-04
申请号：US11490126
申请日：2006-07-21
申请人： Hiroshi Ogawa , Atsushi Okoshi , Masashi Yabuno , Masato Inari
发明人： Hiroshi Ogawa , Atsushi Okoshi , Masashi Yabuno , Masato Inari
IPC分类号： C07D493/04
CPC分类号： C07C51/56 , C07C63/313
摘要： A method of producing pyromellitic dianhydride. The method includes a step of heating a crude pyromellitic acid in the absence of acetic anhydride to convert a part of pyromellitic acid to pyromellitic anhydride, and a subsequent step of heating the resultant mixture in the presence of acetic anhydride to complete the anhydrization of pyromellitic acid. The pyromellitic dianhydride by the method contains little pyromellitic monoanhydride and other monoanhydrides derived from impurities and is less discolored. The pyromellitic dianhydride has particle properties not causing plugging, etc. during its transportation, storage and use.
摘要翻译：制备均苯四酸二酐的方法。该方法包括在不存在乙酸酐的情况下加热粗均苯四酸酸以将一部分均苯四酸转化为均苯四酸酐的步骤，随后在乙酸酐存在下加热得到的混合物以完成均苯四酸酸的脱水。通过该方法，均苯四酸二酐含有少量均苯四酸单酸酐和衍生自杂质的其它一元酸，并且较少变色。均苯四酸二酐在其运输，储存和使用期间具有不引起堵塞等的颗粒性质。

6. 发明申请

US20070021622A1 Production method of highly pure pyromellitic dianhydride 有权
标题翻译：高纯度均苯四酸二酐的制备方法
公开(公告)号：US20070021622A1
公开(公告)日：2007-01-25
申请号：US11490126
申请日：2006-07-21
申请人： Hiroshi Ogawa , Atsushi Okoshi , Masashi Yabuno , Masato Inari
发明人： Hiroshi Ogawa , Atsushi Okoshi , Masashi Yabuno , Masato Inari
IPC分类号： C07D307/77
CPC分类号： C07C51/56 , C07C63/313
摘要： A method of producing pyromellitic dianhydride. The method includes a step of heating a crude pyromellitic acid in the absence of acetic anhydride to convert a part of pyromellitic acid to pyromellitic anhydride, and a subsequent step of heating the resultant mixture in the presence of acetic anhydride to complete the anhydrization of pyromellitic acid. The pyromellitic dianhydride by the method contains little pyromellitic monoanhydride and other monoanhydrides derived from impurities and is less discolored. The pyromellitic dianhydride has particle properties not causing plugging, etc. during its transportation, storage and use.
摘要翻译：制备均苯四酸二酐的方法。该方法包括在不存在乙酸酐的情况下加热粗均苯四酸酸以将一部分均苯四酸转化为均苯四酸酐的步骤，随后在乙酸酐存在下加热得到的混合物以完成均苯四酸酸的脱水。通过该方法，均苯四酸二酐含有少量均苯四酸单酸酐和衍生自杂质的其它一元酸，并且较少变色。均苯四酸二酐在其运输，储存和使用期间具有不引起堵塞等的颗粒性质。

7. 发明授权

US08247605B2 Method of replacing dispersion medium 有权
标题翻译：替代分散介质的方法
公开(公告)号：US08247605B2
公开(公告)日：2012-08-21
申请号：US12374835
申请日：2007-07-19
申请人： Masato Inari , Fumiya Zaima
发明人： Masato Inari , Fumiya Zaima
IPC分类号： C07C51/42
CPC分类号： C07C51/42 , C07C51/43 , C07C63/24
摘要： A method of replacing a first dispersion medium in a starting slurry composed of the first dispersion medium and isophthalic acid crystals with a second dispersion medium. The starting slurry is tangentially fed to a vertically extending cylindrical portion of a cyclone-shaped nozzle disposed at an upper portion of a replacement tank of a dispersion medium replacement apparatus, from a tangential direction of the cylindrical portion. The fed starting slurry moves circularly along an inner wall of the cylindrical portion. The slurry circularly moving is then discharged from an opening which is disposed at a vertically lower end of the cylindrical portion and dispersed in a second dispersion medium which is fed from a lower portion of the replacement tank. The replaced slurry composed of isophthalic acid crystals and the second dispersion medium is mainly discharged from the lower portion of the replacement tank, and the first dispersion medium is mainly withdrawn from the upper portion of the replacement tank.
摘要翻译：将由第一分散介质和间苯二甲酸晶体构成的起始浆料中的第一分散介质用第二分散介质置换的方法。将起始浆料切向地供给到设置在分散介质置换装置的更换罐的上部处的旋转形喷嘴的垂直延伸的圆柱形部分，该圆筒部分从圆柱形部分的切线方向。进料的起始浆料沿圆柱形部分的内壁圆周移动。然后，从设置在圆筒部的垂直下端的开口排出循环移动的浆料，并分散在从更换槽的下部供给的第二分散介质中。由间苯二甲酸晶体构成的替代浆料和第二分散介质主要从更换槽的下部排出，第一分散介质主要从更换罐的上部排出。

8. 发明申请

US20120328483A1 METHOD OF REPLACING DISPERSION MEDIUM AND APPARATUS THEREFOR 有权
标题翻译：更换分散介质的方法及其设备
公开(公告)号：US20120328483A1
公开(公告)日：2012-12-27
申请号：US13587449
申请日：2012-08-16
申请人： Masato Inari , Fumiya Zaima
发明人： Masato Inari , Fumiya Zaima
IPC分类号： B01J19/26
CPC分类号： B01D9/0045 , C07C51/42 , C07C51/43
摘要： A method of replacing a first dispersion medium, in a starting slurry composed of the first dispersion medium and either terephthalic acid crystals or isophthalic acid crystals, with a second dispersion medium, and apparatus therefore. The starting slurry is tangentially fed to a vertically extending cylindrical portion of a cyclone-shaped nozzle disposed at an upper portion of a replacement tank of a dispersion medium replacement apparatus, from a tangential direction of the cylindrical portion, and moves circularly along an inner wall of the cylindrical portion. The slurry circularly moving is then discharged from an opening which is disposed at a vertically lower end of the cylindrical portion and dispersed in a second dispersion medium which is fed from a lower portion of the replacement tank.
摘要翻译：因此，在由第一分散介质和对苯二甲酸晶体或间苯二甲酸晶体构成的起始浆料中用第二分散介质代替第一分散介质的方法及装置。起始浆料切向地供给到设置在分散介质置换装置的替换罐的上部的旋风形喷嘴的垂直延伸的圆柱形部分，从圆柱形部分的切线方向移动，并沿着内壁圆周移动的圆柱形部分。然后，从设置在圆筒部的垂直下端的开口排出循环移动的浆料，并分散在从更换槽的下部供给的第二分散介质中。

9. 发明授权

US08247604B2 Method of replacing dispersion medium 有权
标题翻译：替代分散介质的方法
公开(公告)号：US08247604B2
公开(公告)日：2012-08-21
申请号：US12304415
申请日：2007-06-08
申请人： Masato Inari , Fumiya Zaima
发明人： Masato Inari , Fumiya Zaima
IPC分类号： C07C51/42
CPC分类号： C07C51/43 , B01D9/004 , B01D9/0045 , C07C51/47 , C07C63/26
摘要： A method of replacing a first dispersion medium in a starting slurry composed of the first dispersion medium and a terephthalic acid crystal with a second dispersion medium. The starting slurry is tangentially fed to a vertically extending cylindrical portion of a cyclone-shaped nozzle disposed at an upper portion of a replacement tank of a dispersion medium replacement apparatus, from a tangential direction of the cylindrical portion. The fed starting slurry moves circularly along an inner wall of the cylindrical portion. The slurry circularly moving is then discharged from an opening which is disposed at a vertically lower end of the cylindrical portion and dispersed in a second dispersion medium which is fed from a lower portion of the replacement tank. The replaced slurry composed of the terephthalic acid crystal and the second dispersion medium is mainly discharged from the lower portion of the replacement tank, and the first dispersion medium is mainly withdrawn from the upper portion of the replacement tank.
摘要翻译：用第二分散介质代替由第一分散介质和对苯二甲酸晶体组成的起始浆料中的第一分散介质的方法。将起始浆料切向地供给到设置在分散介质置换装置的更换罐的上部处的旋转形喷嘴的垂直延伸的圆柱形部分，该圆筒部分从圆柱形部分的切线方向。进料的起始浆料沿圆柱形部分的内壁圆周移动。然后，从设置在圆筒部的垂直下端的开口排出循环移动的浆料，并分散在从更换槽的下部供给的第二分散介质中。由对苯二甲酸晶体和第二分散介质构成的替换浆料主要从更换槽的下部排出，第一分散介质主要从更换槽的上部排出。

10. 发明授权

US5880313A Process for producing aromatic carboxylic acid 有权
标题翻译：芳香族羧酸的制造方法
公开(公告)号：US5880313A
公开(公告)日：1999-03-09
申请号：US139677
申请日：1998-08-25
申请人： Fumiya Zaima , Hideaki Fujita , Masami Matsumoto , Masato Inari
发明人： Fumiya Zaima , Hideaki Fujita , Masami Matsumoto , Masato Inari
IPC分类号： C07C51/265 , C07C51/16
CPC分类号： C07C51/265
摘要： A process for continuously producing an aromatic carboxylic acid comprising oxidizing an aromatic compound substituted with alkyl groups with molecular oxygen gas in the liquid phase in a solvent containing a lower aliphatic carboxylic acid in the presence of a catalyst comprising heavy metal compounds and a bromine compound, wherein a mother liquor which is obtained after removal of crystals from a reaction liquid of the liquid phase oxidation and contains heavy metal ions and bromine ion as catalyst components is brought into contact with a chelate resin of an anion exchange type to recover the catalyst components.The catalyst components are efficiently recovered, and auxiliary agents in an amount exceeding the equivalent amount and excessive labor are not necessary.
摘要翻译：一种连续生产芳族羧酸的方法，包括在含有重金属化合物和溴化合物的催化剂存在下，在含有低级脂肪族羧酸的溶剂中，将在液相中的分子氧气用烷基取代的芳族化合物氧化，其中将从液相氧化反应液中除去结晶并含有重金属离子和溴离子作为催化剂组分的母液与阴离子交换型螯合树脂接触以回收催化剂组分。有效地回收催化剂组分，并且不需要超过相当量和过量劳动量的助剂。

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