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公开(公告)号：US20180179141A1
公开(公告)日：2018-06-28
申请号：US15829008
申请日：2017-12-01
发明人： Michael P. LANCI , Joshua W. ALLEN , Jarid M. METZ , Victor DeFLORIO , Jihad M. DAKKA , Bryan A. PATEL , Michael SALCICCIOLI , Michael W. WEBER , Stephen ZUSHMA
CPC分类号： C07C57/30 , B01J31/04 , C07C25/13 , C07C47/23 , C07C51/16 , C07C51/265 , C07C67/05 , C07C67/08 , C07C63/331 , C07C63/333
摘要： A process for selective oxidation of dimethyl-1,1′-biphenyl(s) to form methyl-1,1′-biphenyl mono-carboxylic acid(s), which can be esterified to form plasticizers, comprising contacting a solution of dimethyl-1,1′-biphenyl(s) in acetic acid in the presence of an oxidation catalyst and air under time and temperature conditions sufficient to oxidize the dimethyl-1,1′-biphenyl(s) into one or more methyl-1,1′-biphenyl mono-carboxylic acid(s) products, conducting at least one of (i) adding an antisolvent, or (ii) optimizing a total conversion of dimethyl-1,1′-biphenyl(s) by oxidation based upon a molar ratio of dimethyl-1,1′-biphenyl isomers, or (iii) precipitating the methyl-1,1′-biphenyl mono-carboxylic acid(s) products by lowering the temperature, or (iv) decreasing the oxidation reaction temperature to enhance conversion of aldehydes over methyl functional groups, so as to limit over-oxidation of the dimethyl-1,1′-biphenyl(s), wherein the oxidation reaction is conducted in the absence of bromide-containing catalysts.
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公开(公告)号：US20170190650A1
公开(公告)日：2017-07-06
申请号：US15394365
申请日：2016-12-29
发明人： DAVID PETERSON , Sameer Talreja
CPC分类号： C07C51/47 , B01D17/0202 , B01D61/025 , C02F1/281 , C02F1/283 , C02F1/286 , C02F1/441 , C02F2101/32 , C07C51/265 , C07C53/08 , C07C63/26
摘要： A process for removing acetic acid from an aqueous stream containing yellow oil. According to the process, yellow oil is removed from the aqueous stream prior to the removal of acetic acid by a reverse osmosis membrane.
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公开(公告)号：US09656983B2
公开(公告)日：2017-05-23
申请号：US14900698
申请日：2014-06-16
申请人： BASF SE
IPC分类号： C07D307/89 , C07C51/265 , C07C51/31
CPC分类号： C07D307/89 , C07C51/265 , C07C51/313 , C07C63/16
摘要： A process for preparing carboxylic acids and/or carboxylic anhydrides by gas phase oxidation of aromatic hydrocarbons, in which a gas stream comprising at least one aromatic hydrocarbon and molecular oxygen is passed continuously over a catalyst thermostatted by a heat carrier medium, which comprises keeping the temperature of the heat carrier medium constant during the startup of the reactor for at least 24 hours, during which neither the loading of the gas stream with hydrocarbons nor the gas stream volume is increased by more than 3%.
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4.发明申请公开(公告)号：US20160347700A1
公开(公告)日：2016-12-01
申请号：US15117352
申请日：2015-02-19
发明人： Vivek SHANKARANARAYANAN , Suresh Shantilal JAIN , Pavankumar ADURI , Rajesh Ratnakar TERDALKAR , Nitin Haribhau PATIL , Parasuveera UPPARA
IPC分类号： C07C51/265 , C07C51/48 , C07C51/43
CPC分类号： C07C51/265 , C07C51/43 , C07C51/48 , C07C63/26
摘要： The present disclosure provides a process for oxidation of p-xylene to terephalic acid. Recovery of fluid medium and valuable chemicals in carried out using p-xylene as fluid medium which is also the starting material. The recovered stream containing p-xylene, acetic acid and other valuable chemicals is recycled to the oxidation step. The process disclosed in the present disclosure is energy efficinnt and cost effective.
摘要翻译： 本公开内容提供了将对二甲苯氧化成对苯二酸的方法。 使用对二甲苯作为起始材料的流体介质，回收流体介质和有价值的化学物质。 含有对二甲苯，乙酸和其他有价值化学品的回收物流被循环到氧化步骤。 本公开中公开的方法是能量效率和成本有效的。
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公开(公告)号：US09505692B2
公开(公告)日：2016-11-29
申请号：US12556099
申请日：2009-09-09
IPC分类号： C07C51/265
CPC分类号： C07C51/265 , C07C63/26 , C07C63/15
摘要： The invention provides improved energy content in and shaft power recovery from off-gas from xylene oxidation reactions while at the same time minimizing wastewater treatment cost. More shaft power is produced using off-gas than is required to drive the main air compressor, even with preferred, relatively low oxidation temperatures. Simultaneously, an amount of wastewater greater than byproduct water from oxidation of xylene is kept in vapor form and treated along with off-gas pollutants in a self-sustaining (self-fueling) gas-phase thermal oxidative destruction unit. Optionally, off-gas is combined from multiple xylene oxidation reactors, comprising primary and/or secondary oxidation reactors and forming TPA and/or IPA. Optionally, air compressor condensate and caustic scrubber blowdown are used in a TPA process or as utility water, effectively eliminating normal flow of liquid wastewater effluent from a TPA plant. Optionally, PET off-gas containing the water of PET formation is treated in a shared thermal oxidative destruction unit, effectively eliminating normal flow of liquid wastewater effluent from a combined pX-to-TPA-to-PET plant.
摘要翻译： 本发明提供了来自二甲苯氧化反应的废气的改进的能量含量和轴功率回收，同时使废水处理成本最小化。 即使使用优选的相对低的氧化温度，也可以使用除了驱动主空气压缩机所需的废气以外的更多的轴功率。 同时，大量来自二氧化碳氧化的副产物水的废水保持蒸气形式，并在自持（自燃）气相热氧化破坏装置中与废气污染物一起处理。 任选地，废气从包括初级和/或二级氧化反应器并形成TPA和/或IPA的多个二甲苯氧化反应器组合。 任选地，空气压缩机冷凝物和苛性碱洗涤器排污用于TPA方法或作为效用水，有效地消除了来自TPA设备的液体废水流出物的正常流动。 任选地，在共同的热氧化破坏单元中处理含有PET形成水的PET废气，有效地消除了从组合的pX到TPA到PET植物的液体废水流出物的正常流动。
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公开(公告)号：US09493389B2
公开(公告)日：2016-11-15
申请号：US12556107
申请日：2009-09-09
IPC分类号： C07C51/265
CPC分类号： C07C51/265 , Y02P20/51 , C07C63/15 , C07C63/26
摘要： The invention provides improved energy content in and shaft power recovery from off-gas from xylene oxidation reactions while at the same time minimizing wastewater treatment cost. More shaft power is produced using off-gas than is required to drive the main air compressor, even with preferred, relatively low oxidation temperatures. Simultaneously, an amount of wastewater greater than byproduct water from oxidation of xylene is kept in vapor form and treated along with off-gas pollutants in a self-sustaining (self-fueling) gas-phase thermal oxidative destruction unit. Optionally, off-gas is combined from multiple xylene oxidation reactors, comprising primary and/or secondary oxidation reactors and forming TPA and/or IPA. Optionally, air compressor condensate and caustic scrubber blowdown are used in a TPA process or as utility water, effectively eliminating normal flow of liquid wastewater effluent from a TPA plant. Optionally, PET off-gas containing the water of PET formation is treated in a shared thermal oxidative destruction unit, effectively eliminating normal flow of liquid wastewater effluent from a combined pX-to-TPA-to-PET plant.
摘要翻译： 本发明提供了来自二甲苯氧化反应的废气的改进的能量含量和轴功率回收，同时使废水处理成本最小化。 即使使用优选的相对低的氧化温度，也可以使用除了驱动主空气压缩机所需的废气以外的更多的轴功率。 同时，大量来自二氧化碳氧化的副产物水的废水保持蒸气形式，并在自持（自燃）气相热氧化破坏装置中与废气污染物一起处理。 任选地，废气从包括初级和/或二级氧化反应器并形成TPA和/或IPA的多个二甲苯氧化反应器组合。 任选地，空气压缩机冷凝物和苛性碱洗涤器排污用于TPA方法或作为效用水，有效地消除了来自TPA设备的液体废水流出物的正常流动。 任选地，在共同的热氧化破坏单元中处理含有PET形成水的PET废气，有效地消除了从组合的pX到TPA到PET植物的液体废水流出物的正常流动。
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公开(公告)号：US09493387B2
公开(公告)日：2016-11-15
申请号：US12556096
申请日：2009-09-09
IPC分类号： C07C51/265
CPC分类号： C07C51/265 , C07C63/24 , C07C63/26 , C07C63/15
摘要： The invention provides improved energy content in and shaft power recovery from off-gas from xylene oxidation reactions while at the same time minimizing wastewater treatment cost. More shaft power is produced using off-gas than is required to drive the main air compressor, even with preferred, relatively low oxidation temperatures. Simultaneously, an amount of wastewater greater than byproduct water from oxidation of xylene is kept in vapor form and treated along with off-gas pollutants in a self-sustaining (self-fueling) gas-phase thermal oxidative destruction unit. Optionally, off-gas is combined from multiple xylene oxidation reactors, comprising primary and/or secondary oxidation reactors and forming TPA and/or IPA. Optionally, air compressor condensate and caustic scrubber blowdown are used in a TPA process or as utility water, effectively eliminating normal flow of liquid wastewater effluent from a TPA plant. Optionally, PET off-gas containing the water of PET formation is treated in a shared thermal oxidative destruction unit, effectively eliminating normal flow of liquid wastewater effluent from a combined pX-to-TPA-to-PET plant.
摘要翻译： 本发明提供了来自二甲苯氧化反应的废气的改进的能量含量和轴功率回收，同时使废水处理成本最小化。 即使使用优选的相对低的氧化温度，也可以使用除了驱动主空气压缩机所需的废气以外的更多的轴功率。 同时，大量来自二氧化碳氧化的副产物水的废水保持蒸气形式，并在自持（自燃）气相热氧化破坏装置中与废气污染物一起处理。 任选地，废气从包括初级和/或二级氧化反应器并形成TPA和/或IPA的多个二甲苯氧化反应器组合。 任选地，空气压缩机冷凝物和苛性碱洗涤器排污用于TPA方法或作为效用水，有效地消除了来自TPA设备的液体废水流出物的正常流动。 任选地，在共同的热氧化破坏单元中处理含有PET形成水的PET废气，有效地消除了从组合的pX到TPA到PET植物的液体废水流出物的正常流动。
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公开(公告)号：US09415371B2
公开(公告)日：2016-08-16
申请号：US14394228
申请日：2013-04-01
发明人： Rajaram S. Ghadge , Thomas Mathew
IPC分类号： C07C51/265 , B01J19/18 , B01F5/22 , B01J10/00 , B01J19/00
CPC分类号： B01J19/18 , B01F5/221 , B01J10/002 , B01J19/0066 , B01J2219/00101 , B01J2219/00108 , B01J2219/0011 , B01J2219/00252 , B01J2219/194 , C07C51/265 , C07C63/26
摘要： A multi-phase reactor system for performing multi-phase reactions is disclosed. The reactor system includes a reaction vessel having a slinger device (100) mounted on a centrally positioned agitator shaft (102) proximal to an operative top of the reaction vessel. The slinger device (100) comprises a holding means defined by a vertical circumferential plate (108) and a cover plate (107) for at least partially encasing the agitator shaft (102) to define a space for collecting a liquid. The holding means comprise at least one spraying means including spray pipes (106) for distributing the liquid on an inner wall of the reaction vessel by a projectile trajectory path on rotation of the agitator shaft. A concave blade (104) may be positioned over the cover plate (107) for preventing overflow of the liquid from the holding means and forming an umbrella of the flowing liquid to effect scrubbing of the vapors and off-gas.
摘要翻译： 公开了一种用于进行多相反应的多相反应器系统。 反应器系统包括反应容器，该反应容器具有安装在位于反应容器的操作顶部附近的位于中心的搅拌器轴（102）上的抛油环装置（100）。 抛油环装置（100）包括由垂直周向板（108）和盖板（107）限定的保持装置，用于至少部分地包围搅拌器轴（102）以限定用于收集液体的空间。 保持装置包括至少一个喷涂装置，其包括喷射管（106），用于通过搅拌轴转动时的射出轨迹路径将液体分配在反应容器的内壁上。 凹形叶片（104）可以位于盖板（107）上方，用于防止液体从保持装置溢出并形成流动液体的伞，以实现蒸汽和废气的清洗。
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公开(公告)号：US09409849B2
公开(公告)日：2016-08-09
申请号：US13637460
申请日：2011-03-16
申请人： C. G. Karanjgaokar
发明人： C. G. Karanjgaokar
IPC分类号： C07C51/48 , C07C51/265 , C22B7/00
CPC分类号： C07C51/48 , C07C51/265 , C22B7/009 , Y02P10/214 , C07C63/26 , C07C63/24 , C07C63/307
摘要： The present invention relates to a process for recovery of catalyst, aromatic polycarboxylic acids and aromatic monocarboxylic acids from a residue stream from manufacture of an aromatic polycarboxylic acid.
摘要翻译： 本发明涉及从芳族多元羧酸的制造残留物流中回收催化剂，芳族多元羧酸和芳香族单羧酸的方法。
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公开(公告)号：US09394223B2
公开(公告)日：2016-07-19
申请号：US14586085
申请日：2014-12-30
发明人： Peter Metelski
IPC分类号： C07C51/265 , C07C51/487 , C07C51/42 , C07C51/43
CPC分类号： C07C51/487 , C07C51/265 , C07C51/42 , C07C51/43 , C07C63/26
摘要： A process including: (a) contacting an aqueous solution including a crude aromatic carboxylic acid with an oxygen source in the presence of an oxidation catalyst including at least one of Ru, Au, Pt, Ir or V, and oxides, alloys, salts and mixtures thereof; and (b) purifying the product of step (a) to form a purified aromatic carboxylic acid.
摘要翻译： 一种方法，包括：（a）在包含Ru，Au，Pt，Ir或V中的至少一种的氧化催化剂的存在下，将包含粗芳族羧酸的水溶液与氧源接触，以及氧化物，合金，盐和 其混合物; 和（b）纯化步骤（a）的产物以形成纯化的芳族羧酸。
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