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公开(公告)号：US4211506A
公开(公告)日：1980-07-08
申请号：US893460
申请日：1978-04-04
Applicant: Ferdinand List , Julius Klos , Helmut Alfs
Inventor： Ferdinand List , Julius Klos , Helmut Alfs
Abstract: Method and apparatus for the metered conveying of pulverulent solids with the aid of an eccentric screw pump. The pulverulent solids such as terephthalic acid (TPA) are mechanically or pneumatically loosened in the receiving chamber of the pump.
Abstract translation: 借助于偏心螺杆泵计量输送粉状固体的方法和装置。 粉末状固体如对苯二甲酸（TPA）在泵的接收室中机械地或气动地松动。
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公开(公告)号：US4162365A
公开(公告)日：1979-07-24
申请号：US704955
申请日：1976-07-13
Applicant: Ferdinand List , Helmut Alfs
Inventor： Ferdinand List , Helmut Alfs
IPC: C07C51/265 , C07C51/33
CPC classification number: C07C51/265
Abstract: An improvement in the liquid phase air oxidation process based upon a solvent system such as acetic acid and with a bromine activated heavy-metal catalyst system for preparing phthalic, isophthalic and terephthalic acids from their corresponding alkyl benzenes wherein the heavy metal is a soluble cobalt compound and sufficient excess of air is introduced so that the waste gas still contains an excess of oxygen.
Abstract translation: 基于溶剂系统如乙酸和溴活化的重金属催化剂体系的液相空气氧化方法的改进，用于从其相应的烷基苯制备邻苯二甲酸，间苯二甲酸和对苯二甲酸，其中重金属是可溶性钴化合物 并且引入足够多的空气，使得废气仍然含有过量的氧气。
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公开(公告)号：US4067779A
公开(公告)日：1978-01-10
申请号：US572857
申请日：1975-04-29
Applicant: Ferdinand List , Otto Rauhut , Peter Hegenberg , Rudolf Strobele
Inventor： Ferdinand List , Otto Rauhut , Peter Hegenberg , Rudolf Strobele
CPC classification number: C07C51/487 , C08L63/00
Abstract: Crude 1,10-decanedicarboxylic acid produced by the nitric acid oxidation at 20.degree.14 60.degree. C. of cyclododecanone, cyclododecanol or a mixture thereof can be purified by distillation to a purity suitable for use in the production of polyamides and polyesters by reducing prior to distillation, e.g., by heating to 70.degree.-90.degree. C., the organically bound nitrogen content and as required the nitric acid content, e.g., by washing, and water content thereof so that the sample which is distilled has maximum contents thereof of 0.05%, 0.02% and 0.1% by weight, respectively, and distilling the pre-purified sample at a sump temperature of 215.degree.-225.degree. C. and at a pressure of 0.5 - 2 torr.
Abstract translation: 可以通过蒸馏纯化20d14℃的环十二酮，环十二烷醇或其混合物的硝酸氧化产生的粗制1,10-癸烷二羧酸，其纯度适用于通过还原先前的方法生产聚酰胺和聚酯 进行蒸馏，例如通过加热至70-90℃，有机结合的氮含量和硝酸含量，例如通过洗涤及其含水量，使得蒸馏的样品的最大含量为 分别为0.05％，0.02％和0.1％，并在215-225℃的贮槽温度和0.5-2托的压力下蒸馏预纯化的样品。
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公开(公告)号：US4009199A
公开(公告)日：1977-02-22
申请号：US588836
申请日：1975-06-20
Applicant: Ferdinand List , Kurt Wember
Inventor： Ferdinand List , Kurt Wember
Abstract: Silica gel esterification catalysts which are mechanically stable and are highly abrasion free, particularly suitable for the esterification of dimethyl terephthalate, are prepared by impregnating silica gel in solutions of aluminum, titanium, zinc and tin compounds, separating the excess solutions and drying at elevated temperatures. The catalysts are further improved by treatment with a gaseous mixture of methanol and water.
Abstract translation: 通过将硅胶浸渍在铝，钛，锌和锡化合物的溶液中，分离过量溶液并在高温下干燥来制备机械稳定且高度无磨损，特别适用于对苯二甲酸二甲酯酯化的硅胶酯化催化剂 。 通过用甲醇和水的气体混合物处理进一步改进催化剂。
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公开(公告)号：US4340752A
公开(公告)日：1982-07-20
申请号：US888612
申请日：1978-03-21
Applicant: Ferdinand List , Friedrich-August Orlowski
Inventor： Ferdinand List , Friedrich-August Orlowski
IPC: C07C63/26 , C07C51/00 , C07C51/487 , C07C67/00 , C07C51/42
CPC classification number: C07C51/487
Abstract: A process for the purification of terephthalic acid in which a dispersion of the terephthalic acid in a liquid dispersant such as acetic acid is continuously pumped repeatedly through a cycle. Fresh dispersion is fed continuously into the cycle while simultaneously a corresponding amount of treated dispersion is removed. The cycle comprises a heater and a cooler and the cooler serves as a crystallizer. The dispersion prior to entering the heater is subjected to a highly effective particle comminution and is exposed upstream of or in the heater to an oxygen containing gas such as air. The acetic acid dispersant is removed from the treated dispersion and recycled to the cycle.
Abstract translation: 对苯二甲酸的纯化方法，其中对苯二甲酸在液体分散剂如乙酸中的分散体连续地泵送循环。 新鲜分散体连续进料到循环中，同时除去相应量的经处理的分散体。 该循环包括加热器和冷却器，并且冷却器用作结晶器。 在进入加热器之前的分散体经受高效的颗粒粉碎，并且在加热器的上游或在加热器中暴露于含氧气体如空气中。 将乙酸分散剂从经处理的分散体中除去并循环至该循环。
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Patent Agency Ranking6.发明授权Apparatus for the production of dimethyl terephthalate by the esterification of terephthalic acid 失效用于通过对苯二甲酸酯化生产对苯二甲酸二甲酯的装置
公开(公告)号：US3980441A
公开(公告)日：1976-09-14
申请号：US616029
申请日：1975-09-23
Applicant: Horst-Dieter Wulf , Ferdinand List , Kurt Wember , Norbert Wilke
Inventor： Horst-Dieter Wulf , Ferdinand List , Kurt Wember , Norbert Wilke
CPC classification number: B01J19/28 , B01J8/02 , C07C67/08 , B01J2208/00247 , B01J2208/00265 , B01J2208/00548 , B01J2219/182
Abstract: Dimethyl terephthalate is prepared by the continuous esterification of terephthalic acid in the gas phase by evaporating solid terephthalic acid in a pre-reactor by means of a hot methanol vapor stream, conducting the gas mixture through a solid bed catalyst in a follow-up reactor, and recirculating a portion of the reaction product to the pre-reactor.
Abstract translation: 通过在气相中通过在预反应器中通过热甲醇蒸气流蒸发固体对苯二甲酸，在气相中连续酯化对苯二甲酸来制备对苯二甲酸二甲酯，在后续反应器中通过固体床催化剂导入气体混合物， 并将一部分反应产物再循环到预反应器。
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公开(公告)号：US3972912A
公开(公告)日：1976-08-03
申请号：US420307
申请日：1973-11-29
Applicant: Horst-Dieter Wulf , Ferdinand List , Friedrich-August Orlowski , Norbert Wilke , Emmerich Pflegerl
Inventor： Horst-Dieter Wulf , Ferdinand List , Friedrich-August Orlowski , Norbert Wilke , Emmerich Pflegerl
CPC classification number: B01J19/18 , B01J19/28 , B01J8/04 , B01J8/0457 , C07C67/08 , B01J2208/00212 , B01J2208/00247 , B01J2208/00256 , B01J2208/00265 , B01J2208/00548 , B01J2219/182 , Y02P20/584
Abstract: Dimethyl terephthalate is prepared by the continuous esterification of terephthalic acid in the gas phase by evaporating solid terephthalic acid in a pre-reactor by means of a hot methanol vapor stream, conducting the gas mixture through a solid bed catalyst in a follow-up reactor, and recirculating a portion of the reaction product to the pre-reactor. After the pre-reactor the terephthalic acid dispersed in the methanol gas phase is heated and vaporized in one or more consecutive heat exchangers followed by one or more dwell period lengths and immediately heated to the esterification temperature prior to entry into the follow-up reactor.
Abstract translation: 通过在气相中通过在预反应器中通过热甲醇蒸气流蒸发固体对苯二甲酸，在气相中连续酯化对苯二甲酸来制备对苯二甲酸二甲酯，在后续反应器中通过固体床催化剂导入气体混合物， 并将一部分反应产物再循环到预反应器。 在预反应器之后，分散在甲醇气相中的对苯二甲酸在一个或多个连续的热交换器中加热并蒸发，然后一个或多个停留时间段，并在进入后续反应器之前立即加热至酯化温度。
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公开(公告)号：US4015943A
公开(公告)日：1977-04-05
申请号：US679046
申请日：1976-04-21
Applicant: Horst-Dieter Wulf , Ferdinand List , Friedrich-August Orlowski , Norbert Wilke , Emmerich Pflegerl
Inventor： Horst-Dieter Wulf , Ferdinand List , Friedrich-August Orlowski , Norbert Wilke , Emmerich Pflegerl
CPC classification number: B01J19/18 , B01J8/04 , B01J8/0457 , C07C67/08 , B01J2208/00212 , B01J2208/00256 , B01J2219/182
Abstract: Dimethyl terephthalate is prepared by the continuous esterification of terephthalic acid in the gas phase by evaporating solid terephthalic acid in a pre-reactor by means of a hot methanol vapor stream, conducting the gas mixture through a solid bed catalyst in a follow-up reactor, and recirculating a portion of the reaction product to the pre-reactor. After the pre-reactor the terephthalic acid dispersed in the methanol gas phase is heated and vaporized in one or more consecutive heat exchangers followed by one or more dwell period lengths and immediately heated to the esterification temperature prior to entry into the follow-up reactor.
Abstract translation: 通过在气相中通过在预反应器中通过热甲醇蒸气流蒸发固体对苯二甲酸，在气相中连续酯化对苯二甲酸来制备对苯二甲酸二甲酯，在后续反应器中通过固体床催化剂导入气体混合物， 并将一部分反应产物再循环到预反应器。 在预反应器之后，分散在甲醇气相中的对苯二甲酸在一个或多个连续的热交换器中加热并蒸发，然后一个或多个停留时间段，并在进入后续反应器之前立即加热至酯化温度。
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9.发明授权
公开(公告)号：US4005124A
公开(公告)日：1977-01-25
申请号：US525516
申请日：1974-11-20
Applicant: Ferdinand List , Wilfried Uhlenbrock , Norbert Wilke , Kurt Wember
Inventor： Ferdinand List , Wilfried Uhlenbrock , Norbert Wilke , Kurt Wember
IPC: C07C69/82 , C07C29/80 , C07C51/265 , C07C67/48
CPC classification number: C07C29/80 , C07C51/265 , C07C67/08 , C07C67/56
Abstract: The process of recovering methanolic mother liquor obtained by the esterification of terephthalic acid with methanol, where the terephthalic acid may be unprepurified, is improved by adjusting to a specific gravity of about 0.85 - 0.98 by addition of water and/or methanol distillate, a mother liquor containing esterification water and dissolved solids at a concentration of about 1.0 to 6.0 percent by weight and cooling the mother liquor from a temperature of about 65.degree. - 85.degree. C to a temperature of about 10.degree. - 30.degree. C to separate the solids and remove the separated solids. The separated solids may be recycled into the esterification reaction and the unseparated solids may be recycled for oxidation to terephthalic acid following distillation to remove the methanol.
Abstract translation: 通过加入水和/或甲醇馏出物，通过调节约0.85-0.98的比重来改善通过对苯二甲酸与甲醇酯化反应得到的甲醇母液（对苯二甲酸可能未经修复的方法）的方法，母体 含有酯化水和溶解固体的液体浓度为约1.0至6.0重量％，并将母液从约65-85℃的温度冷却至约10-30℃的温度，以分离固体和 去除分离的固体。 分离的固体可以再循环到酯化反应中，并且未分离的固体可以在蒸馏之后再循环以氧化成对苯二甲酸以除去甲醇。
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10.发明授权
公开(公告)号：US3940431A
公开(公告)日：1976-02-24
申请号：US361597
申请日：1973-05-18
Applicant: Horst-Dieter Wulf , Ferdinand List , Kurt Wember , Norbert Wilke
Inventor： Horst-Dieter Wulf , Ferdinand List , Kurt Wember , Norbert Wilke
CPC classification number: B01J19/28 , B01J8/02 , C07C67/08 , B01J2208/00247 , B01J2208/00265 , B01J2208/00548 , B01J2219/182 , Y02P20/584
Abstract: Dimethyl terephthalate is prepared by the continuous esterification of terephthalic acid in the gas phase by evaporating solid terephthalic acid in a pre-reactor by means of a hot methanol vapor stream, conducting the gas mixture through a solid bed catalyst in a follow-up reactor, and recirculating a portion of the reaction product to the pre-reactor.
Abstract translation: 通过在气相中通过在预反应器中通过热甲醇蒸气流蒸发固体对苯二甲酸，在气相中连续酯化对苯二甲酸来制备对苯二甲酸二甲酯，在后续反应器中通过固体床催化剂导入气体混合物， 并将一部分反应产物再循环到预反应器。
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