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公开(公告)号：US06831195B2
公开(公告)日：2004-12-14
申请号：US10224677
申请日：2002-08-21
IPC分类号： C07C2710
摘要： A method for producing an organic acid and/or an organic acid ester which utilizes a steam system permitting stable production of an organic acid and/or an organic acid ester and realizing a high thermal efficiency constantly relative to the waste heat generated in the process of the production is provided. More particularly, this invention concerns a method for the production of an organic acid and/or an organic acid ester, wherein heat generated in the process for producing an organic acid and/or an organic acid ester is recovered in the form of steam, and the steam is used in any of the following forms: {circle around (1)} thermal energy, {circle around (2)} dynamic energy, and {circle around (3)} electrical energy in the process for producing an organic acid and/or an organic acid ester.
摘要翻译： 一种生产有机酸和/或有机酸酯的方法，其利用允许有机酸和/或有机酸酯稳定生产的蒸汽系统，并相对于在 提供生产。 更具体地说，本发明涉及生产有机酸和/或有机酸酯的方法，其中在生产有机酸和/或有机酸酯的方法中产生的热量以蒸汽的形式回收， 蒸汽以下列任何一种形式使用：{围绕（1个热能，{围绕（2个动态能量）和{围绕周围（在产生有机酸和/或有机酸酯的方法中为3个电能 。
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2.发明授权公开(公告)号：US07282118B2
公开(公告)日：2007-10-16
申请号：US09828093
申请日：2001-04-06
CPC分类号： B01D3/225 , B01D3/326 , Y10S203/11
摘要： This invention resides in providing a method for the prevention of possible polymerization of the easily polymerizable substance during the purification thereof by a column provided with (a) at least one tray directly fixed to a support ring with a bolt and a nut and/or (b) at least one tray fixed to a support ring with a vertical clamp or a distillation column provided in the lower part thereof with a splash collision plate.
摘要翻译： 本发明在于提供一种防止易于聚合的物质在其净化过程中可能的聚合的方法，所述塔具有（a）至少一个直接用螺栓和螺母固定在支撑环上的托盘和/或（ b）至少一个托架，其具有垂直夹具或蒸馏塔固定在支撑环上，该塔板在其下部设有飞溅碰撞板。
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公开(公告)号：US06407287B2
公开(公告)日：2002-06-18
申请号：US09800705
申请日：2001-03-07
IPC分类号： C07C5116
CPC分类号： C07C51/252 , C07C51/46 , C07C57/04
摘要： In a method for producing acrylic acid by the steps of a reaction of catalytic gas phase oxidation, absorbing the acrylic acid with an absorbent, and dehydrating the acrylic acid-containing aqueous solution, the method is characterized that the step of dehydration comprises adding and an azeotropic solvent, distilling the resultant mixture, and adjusting the acrylic acid concentration at the top of the column in the range of 0.06-0.80 wt. %, thereby preventing the bottoms of the azeotropic dehydration column from substantially containing the azeotropic solvent and water. As results, the acrylic acid is kept from forming a polymer in any of the distillation columns involved in the production, and effective utilization of acrylic acid.
摘要翻译： 在通过催化气相氧化反应，吸收丙烯酸和吸收剂的步骤和使含丙烯酸水溶液脱水的步骤来制备丙烯酸的方法中，脱水步骤包括加入和 共沸溶剂，蒸馏得到的混合物，并调节柱顶部的丙烯酸浓度为0.06-0.80wt。 ％，从而防止共沸脱水塔的底部基本上含有共沸溶剂和水。 结果，丙烯酸在生产中涉及的任何蒸馏塔中都不会形成聚合物，有效利用丙烯酸。
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公开(公告)号：US5371280A
公开(公告)日：1994-12-06
申请号：US788326
申请日：1991-11-05
摘要： This invention is directed to a polymerization inhibitor and a polymerization inhibiting method which enables the continuous operation of a device for producing vinyl compounds over a long period of time and virtually eliminates corrosion. Further, the polymerization inhibitors according to the present invention are superior in polymerization inhibition when transferring and storing the vinyl compound products and in other cases. The polymerization inhibitor according to the present invention contains manganese dithiocarbamate or a thiuram compound as an effective component. The polymerization inhibiting method of this invention comprises individual or joint use of said inhibitors, or joint use of a copper salt, another manganese salt, or quinones in addition to said inhibitors. Further, the method may comprise jointly using copper dithiocarbamates in a manganese salt as polymerization inhibitors, or jointly using quinones in addition to the salts.
摘要翻译： 本发明涉及聚合抑制剂和聚合抑制方法，其能够长时间地连续操作用于生产乙烯基化合物的装置，并且实际上消除了腐蚀。 此外，根据本发明的聚合抑制剂在转移和储存乙烯基化合物产品时的聚合抑制性优异，在其它情况下也是优异的。 本发明的阻聚剂含有二硫代氨基甲酸锰或秋兰姆化合物作为有效成分。 除了所述抑制剂之外，本发明的聚合抑制方法包括单独或联合使用所述抑制剂，或联合使用铜盐，另一种锰盐或醌。 此外，该方法可以包括在锰盐中联合使用二硫代氨基甲酸铜作为聚合抑制剂，或者除了盐之外共同使用醌。
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公开(公告)号：US07491841B2
公开(公告)日：2009-02-17
申请号：US11822521
申请日：2007-07-06
申请人： Hidefumi Haramaki , Manabu Matsui
发明人： Hidefumi Haramaki , Manabu Matsui
IPC分类号： C07C67/48
摘要： A process for producing an acrylic ester using acrylic acid and an aliphatic or alicyclic alcohol having from 5 to 8 carbon atoms, as raw materials, and using a strongly acidic cation exchange resin as a catalyst. In such a process for producing an acrylic ester, a crude acrylic ester withdrawn from the bottom of a low-boiling separation column is supplied to a rectifying column, a rectified acrylic ester is taken out from the top of the rectifying column, while a high-boiling substance containing an acrylic ester, which is withdrawn from the bottom of the rectifying column, is supplied to a high-boiling separation column and/or a thin-film evaporator to separate it into an acrylic ester component and a high-boiling substance, and the separated acrylic ester component is taken out as a distillate and supplied to the low-boiling separation column for its recovery.
摘要翻译： 使用丙烯酸和具有5〜8个碳原子的脂肪族或脂环族醇作为原料，使用强酸性阳离子交换树脂作为催化剂来制造丙烯酸酯的方法。 在这样的丙烯酸酯的制造方法中，将从低沸点分离塔的底部排出的粗丙烯酸酯供给到精馏塔，从精馏塔的顶部取出精制丙烯酸酯， 将从精馏塔底部排出的含有丙烯酸酯的沸腾物质供给至高沸点分离塔和/或薄膜蒸发器，将其分离成丙烯酸酯成分和高沸点物质 ，分离出的丙烯酸酯组分作为馏出物取出，供给低沸点分离塔进行回收。
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公开(公告)号：US06582667B1
公开(公告)日：2003-06-24
申请号：US09394087
申请日：1999-09-13
IPC分类号： B01J806
CPC分类号： C07C51/252 , B01J8/067 , B01J2208/00212 , B01J2208/00221 , B01J2208/00256 , B01J2219/00777 , C07C45/35 , C07C51/313 , Y02P20/123 , Y02P20/51 , C07C47/22 , C07C57/04 , C07C63/16
摘要： A shell-and-tube reactor has a plurality of reaction tubes incorporated therein, a circulation path for the heating medium formed outside the reaction tubes, a heating medium introducing section provided on the upper part of the shell in the reactor and a heating medium discharge section provided on the lower part of the shell in the reactor, a back pressure applying means for the heating medium is further provided in the heating medium discharge section.
摘要翻译： 管壳式反应器内装有多个反应管，形成在反应管外侧的加热介质的循环路径，设置在反应器壳体上部的加热介质导入部和加热介质排出口 在反应器的壳体的下部设置有用于加热介质的背压施加装置的加热介质排出部。
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公开(公告)号：US20080015384A1
公开(公告)日：2008-01-17
申请号：US11822521
申请日：2007-07-06
申请人： Hidefumi Haramaki , Manabu Matsui
发明人： Hidefumi Haramaki , Manabu Matsui
IPC分类号： C07C69/00
摘要： A process for producing an acrylic ester with excellent economic efficiency, which can eliminate the conventional problems to maintain the stable quality and the low unit consumption of raw materials, in the process for producing an acrylic ester using acrylic acid containing high-boiling acid components influencing the loss in quality and the unit consumption of raw materials, and an aliphatic or alicyclic alcohol having from 5 to 8 carbon atoms, as raw materials, and using a strongly acidic cation exchange resin as a catalyst. In such a process for producing an acrylic ester, a crude acrylic ester withdrawn from the bottom of a low-boiling separation column is supplied to a rectifying column, a rectified acrylic ester is taken out from the top of the rectifying column, while a high-boiling substance containing an acrylic ester, which is withdrawn from the bottom of the rectifying column, is supplied to a high-boiling separation column and/or a thin-film evaporator to separate it into an acrylic ester component and a high-boiling substance, and the separated acrylic ester component is taken out as a distillate and supplied to the low-boiling separation column for its recovery.
摘要翻译： 丙烯酸酯的制造方法，在丙烯酸酯的制造方法中，使用含有高沸点酸成分的丙烯酸，影响丙烯酸酯的制造方法，其具有经济效益优异的丙烯酸酯的制造方法，能够消除常规问题，维持原料的稳定品质和低的单位消耗 原料的质量损失和单位消耗量，具有5〜8个碳原子的脂肪族或脂环族醇作为原料，使用强酸性阳离子交换树脂作为催化剂。 在这样的丙烯酸酯的制造方法中，将从低沸点分离塔的底部排出的粗丙烯酸酯供给到精馏塔，从精馏塔的顶部取出精制丙烯酸酯， 将从精馏塔底部排出的含有丙烯酸酯的沸腾物质供给至高沸点分离塔和/或薄膜蒸发器，将其分离成丙烯酸酯成分和高沸点物质 ，分离出的丙烯酸酯组分作为馏出物取出，供给低沸点分离塔进行回收。
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公开(公告)号：US5872288A
公开(公告)日：1999-02-16
申请号：US990522
申请日：1997-12-15
申请人： Hidefumi Haramaki , Osamu Dodo , Mamoru Takamura
发明人： Hidefumi Haramaki , Osamu Dodo , Mamoru Takamura
CPC分类号： C07C51/42 , Y10S203/22
摘要： The present invention provides a process for producing (meth)acrylic acid by gas-phase catalytic oxidation, which comprises cooling and condensing a (meth)acrylic acid-containing reaction product gas to obtain a crude aqueous (meth)acrylic acid solution; cooling the aqueous solution to deposit the impurities contained in the aqueous solution, as solid matter; separating the solid matter; and then extracting and separating (meth)acrylic acid from the purified aqueous (meth)acrylic acid solution obtained. Unlike the conventional processes in which (meth)acrylic acid is extracted and separated from a crude aqueous (meth)acrylic acid solution, the present process can avoid various troubles caused by the impurities contained in the crude aqueous (meth)acrylic acid solution, for example, generation of scum and the like, and therefore can produce (meth)acrylic acid at a higher purity than in the conventional processes.
摘要翻译： 本发明提供一种通过气相催化氧化制备（甲基）丙烯酸的方法，其包括冷却并冷凝含（甲基）丙烯酸的反应产物气体，得到粗的（甲基）丙烯酸水溶液; 冷却水溶液以沉积包含在水溶液中的杂质，作为固体物质; 分离固体物质; 然后从得到的纯化的（甲基）丙烯酸水溶液中萃取分离（甲基）丙烯酸。 与从（甲基）丙烯酸粗水溶液中提取（甲基）丙烯酸并分离的常规方法不同，本方法可以避免由粗制的（甲基）丙烯酸水溶液中所含的杂质引起的各种麻烦， 例如，生成浮渣等，因此可以以比常规方法更高的纯度生产（甲基）丙烯酸。
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