专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US07294240B2 Method for producing (meth)acrylic acid esters 有权
标题翻译：（甲基）丙烯酸酯的制造方法
公开(公告)号：US07294240B2
公开(公告)日：2007-11-13
申请号：US10479962
申请日：2002-05-28
申请人： Matthias Geisendoerfer , Gerhard Nestler , Juergen Schroeder , Hugues Vandenmersch
发明人： Matthias Geisendoerfer , Gerhard Nestler , Juergen Schroeder , Hugues Vandenmersch
IPC分类号： B01D3/34 , C07C213/06 , C07C213/10 , C07C51/44 , C07C67/54
CPC分类号： C07C213/06 , C07C213/10 , Y02P20/582 , Y10S203/20 , Y10S203/22 , Y10S203/90 , C07C219/08
摘要： Basic (meth)acrylates IV are prepared by transesterification of alkyl (meth)acrylates I in the presence of a catalyst and working-up of the reaction mixture by distillation, by a process in which a gas or gas mixture which is inert under the reaction conditions is passed through the reaction zone and/or heat exchanger.
摘要翻译：碱性（甲基）丙烯酸酯IV通过烷基（甲基）丙烯酸烷基酯I在催化剂存在下进行酯交换和通过蒸馏处理反应混合物，通过其中反应惰性气体或气体混合物条件通过反应区和/或热交换器。

2. 发明授权

US07268251B2 Method for producing (meth) acrylic acid esters 有权
标题翻译：（甲基）丙烯酸酯的制造方法
公开(公告)号：US07268251B2
公开(公告)日：2007-09-11
申请号：US10479562
申请日：2002-05-28
申请人： Matthias Geisendoerfer , Albrecht Dams , Gerhard Nestler
发明人： Matthias Geisendoerfer , Albrecht Dams , Gerhard Nestler
IPC分类号： C07C69/52
CPC分类号： C07D211/94 , C07C67/54 , C07C213/06 , C07C213/10 , Y02P20/582 , C07C69/54 , C07C219/08
摘要： The invention relates to a method for producing (meth)acrylic acid esters IV by means of transesterification of a (meth)acrylic acid ester I with an alcohol R2OH comprising at least one more carbon atom than the alcohol constituents (R1O—) in the (meth)acrylic acid ester I to be subjected to transesterification, in the presence of a catalyst or a catalyst mixture. Either essentially the (meth)acrylic acid ester I is separated and then the catalyst used is separated by distillation (catalyst separation), or the catalyst used is separated by distillation first (catalyst separation), and then essentially the (meth)acrylic acid ester I is separated, from the reaction product of the transesterification. Constituents from the mixture obtained, which have a lower boiling point than the (meth)acrylic acid ester IV, are essentially separated by distillation (separation of constituents at low boiling point), and the (meth)acrylic acid ester IV is then purified by distillation (purification by distillation).
摘要翻译：本发明涉及一种通过（甲基）丙烯酸酯I与醇R 2 OH的酯交换反应制备（甲基）丙烯酸酯IV的方法，其包含至少比另一个碳原子多在（甲基）丙烯酸酯I中，在催化剂或催化剂混合物的存在下进行酯交换反应的醇成分（R 1 O - O-）。基本上分离（甲基）丙烯酸酯I，然后通过蒸馏（催化剂分离）分离所用的催化剂，或者首先通过蒸馏分离催化剂（催化剂分离），然后基本上将（甲基）丙烯酸酯我与酯交换的反应产物分离。得到的沸点比（甲基）丙烯酸酯IV低的混合物的成分基本上通过蒸馏分离（低沸点成分分离），然后将（甲基）丙烯酸酯IV纯化蒸馏（通过蒸馏纯化）。

3. 发明授权

US07253311B2 Method for the production of acrylic acid by heterogeneously-catalysed gas-phase oxidation 有权
标题翻译：通过异相催化气相氧化生产丙烯酸的方法
公开(公告)号：US07253311B2
公开(公告)日：2007-08-07
申请号：US10490104
申请日：2002-09-30
申请人： Gerhard Nestler , Juergen Schroeder
发明人： Gerhard Nestler , Juergen Schroeder
IPC分类号： C07C51/16
CPC分类号： C07C51/252 , B01J23/002 , B01J23/8876 , B01J23/8877 , B01J23/8885 , B01J35/0006 , B01J2523/00 , C07C57/04 , B01J2523/17 , B01J2523/55 , B01J2523/68 , B01J2523/69
摘要： Acrylic acid is prepared from propene by means of gas-phase oxidation by a process in which a starting gas mixture which contains propene and steam and whose molar propene/steam ratio is ≧1 and whose propane content is ≦5% is passed at elevated temperatures through a fixed catalyst bed comprising successive catalyst part-beds A and B, the part-bed A passed through first containing, as active material, a mixed oxide containing the elements Mo, Bi and Fe and the part-bed B containing, as active material, a mixed oxide containing the elements Mo and V, in a manner such that at least 96.5 mol % of propene are converted in a single pass through part-bed A.
摘要翻译：丙烯通过气相氧化由丙烯制备，其中含有丙烯和蒸汽并且摩尔丙烷/蒸汽比为> = 1且其丙烷含量<= 5％的起始气体混合物通过通过包括连续的催化剂部分床A和B的固定催化剂床的升高的温度，首先通过的部分床A含有作为活性材料的含有元素Mo，Bi和Fe的元素床和B，作为活性物质，含有元素Mo和V的混合氧化物，使得至少96.5摩尔％的丙烯在单次通过部分床A中被转化。

4. 发明授权

US06679939B1 Fractional condensation of a product gas mixture containing acrylic acid 有权
标题翻译：含有丙烯酸的产物气体混合物的分级冷凝
公开(公告)号：US06679939B1
公开(公告)日：2004-01-20
申请号：US09926042
申请日：2001-08-20
申请人： Joachim Thiel , Jürgen Schröder , Gerhard Nestler
发明人： Joachim Thiel , Jürgen Schröder , Gerhard Nestler
IPC分类号： B01D4714
CPC分类号： C07C51/487 , B01D3/14 , B01D3/225 , B01D3/322 , C07C51/43 , C07C51/44 , C07C51/50 , C07C57/04
摘要： In a process for the fractional condensation of an acrylic acid-containing product gas mixture of a gas-phase partial oxidation of C3 precursors of acrylic acid with molecular oxygen under heterogeneous catalysis, the separation column used contains both dual-flow trays and hydraulically sealed cross-flow trays as baffles having separation activity.
摘要翻译：在非均相催化下，丙烯酸C3前体与分子氧的气相部分氧化的含丙烯酸的产物气体混合物的分级缩合的方法中，使用的分离柱包含双流塔盘和液压密封十字流盘作为具有分离活性的挡板。

5. 发明授权

US06617470B1 Method for esterifying (meth)acrylic acid with an alkanol 有权
标题翻译：用链烷醇酯化（甲基）丙烯酸的方法
公开(公告)号：US06617470B1
公开(公告)日：2003-09-09
申请号：US09831349
申请日：2001-05-11
申请人： Heinrich Aichinger , Holger Herbst , Gerhard Nestler , Jürgen Schröder , Stefan Beckmann
发明人： Heinrich Aichinger , Holger Herbst , Gerhard Nestler , Jürgen Schröder , Stefan Beckmann
IPC分类号： C07C6954
CPC分类号： C07C67/08 , C07C67/327 , C07C69/54
摘要： In a process for esterifying (meth)acrylic acid with an alkanol in the presence of an esterification catalyst, in which unconverted starting compounds and (meth)acrylic ester to be formed are separated off by distillation and an oxyester-containing bottom product is formed, the bottom product is first separated off and then the oxyesters contained in it are cleaved in the presence of a relatively long-chain alkylbenzenesulfonic acid at elevated temperatures.
摘要翻译：在酯化催化剂存在下，用链烷醇酯化（甲基）丙烯酸的方法中，其中未转化的起始化合物和待形成的（甲基）丙烯酸酯通过蒸馏分离出来并形成含有含氧酯的底部产物，首先将底部产物分离，然后在高温下在相对长链烷基苯磺酸存在下将含有的含氧酯切割。

6. 发明授权

US06568406B2 Method of cleaning plant parts for the preparation or processing of (meth)acrylic esters 有权
标题翻译：（甲基）丙烯酸酯的制备或加工清洁工厂零件的方法
公开(公告)号：US06568406B2
公开(公告)日：2003-05-27
申请号：US09509817
申请日：2000-04-18
申请人： Heinrich Aichinger , Holger Herbst , Gerhard Nestler , Jürgen Schröder
发明人： Heinrich Aichinger , Holger Herbst , Gerhard Nestler , Jürgen Schröder
IPC分类号： G08B900
CPC分类号： B08B3/08 , C11D7/06 , C11D11/0041 , C11D11/0064
摘要： Plant parts which are used for the production or processing of (meth)acrylic esters are cleaned by (a) emptying the plant parts, (b) flushing the plant parts with aqueous 5 to 50% strength by weight alkali metal hydroxide solution, (c) removing the alkali metal hydroxide solution from the plant parts, (d) if required, washing the plant parts with water and (e) if required, drying the plant parts.
摘要翻译：用于生产或加工（甲基）丙烯酸酯的植物部分通过（a）排空植物部分进行清洁，（b）用5-50％重量的碱金属氢氧化物水溶液冲洗植物部分，（c ）从植物部分去除碱金属氢氧化物溶液，（d）如果需要，用水洗涤植物部分，（e）如果需要，干燥植物部分。

7. 发明授权

US06518374B1 Method of immediately terminating free-radical polymerisation processes 有权
标题翻译：立即终止自由基聚合方法的方法
公开(公告)号：US06518374B1
公开(公告)日：2003-02-11
申请号：US09926417
申请日：2001-10-29
申请人： Heinrich Aichinger , Gerhard Nestler , Jürgen Schröder
发明人： Heinrich Aichinger , Gerhard Nestler , Jürgen Schröder
IPC分类号： C08F238
CPC分类号： C08F2/42
摘要： Free radical polymerizations immediately terminated by a process comprising the addition of an inhibitor solution which contains phenothiazine and at least 50% (w/w) N-alkylpyrrolidone to a system undergoing free radical polymerization, wherein the inhibitor solution also contains p-methoxyphenol (MEHQ).
摘要翻译：通过包括向含有吩噻嗪和至少50％（w / w）N-烷基吡咯烷酮的抑制剂溶液加入到经历自由基聚合的体系中的方法立即终止自由基聚合，其中抑制剂溶液还含有对甲氧基苯酚（MEHQ ）。

8. 发明授权

US06517057B1 Supply system for transferring a fluid to a container 有权
标题翻译：用于将流体输送到容器的供应系统
公开(公告)号：US06517057B1
公开(公告)日：2003-02-11
申请号：US09700812
申请日：2001-02-12
申请人： Heinrich Aichinger , Michael Fried , Gerhard Nestler , Oliver Odenwald
发明人： Heinrich Aichinger , Michael Fried , Gerhard Nestler , Oliver Odenwald
IPC分类号： B01F304
CPC分类号： B01J19/002 , B01J4/001 , B01J2219/00272
摘要： A supply system for feeding a fluid to a vessel (1) is described, which is provided with a feedline (10), having a reservoir which is filled with the fluid and a compressed-gas store (14) which can be brought into communication with this reservoir (13), in which system the reservoir (13) and the compressed-gas store (14) are arranged in immediate proximity to one another, and wherein the reservoir (13) can, when required, be brought into communication with the feedline (10) via connection pieces (11, 12).
摘要翻译：描述了一种用于将流体供给到容器（1）的供应系统，其具有供给线（10），其具有填充有流体的储存器和可以被连通的压缩气体储存器（14）在该储存器（13）中，储存器（13）和压缩气体储存器（14）在该系统中彼此紧邻地布置，并且其中储存器（13）可以在需要时与所述馈线（10）经由连接件（11,12）。

9. 发明授权

US06228227B1 Separation of (meth)acrylic acid by rectification 失效
标题翻译：（甲基）丙烯酸的精馏分离
公开(公告)号：US06228227B1
公开(公告)日：2001-05-08
申请号：US09275016
申请日：1999-03-24
申请人： Holger Herbst , Gerhard Nestler , Jerry Darlington , Ulrich Hammon
发明人： Holger Herbst , Gerhard Nestler , Jerry Darlington , Ulrich Hammon
IPC分类号： B01D334
CPC分类号： C07C51/44 , Y10S203/22 , C07C57/04
摘要： In a process for the separation by rectification of (meth)acrylic acid from a mixture containing (meth)acrylic acid and an inert hydrophobic organic liquid having a boiling point higher than that of (meth)acrylic acid as main constituents and also lower aldehydes as secondary constituents, a primary amine and/or a salt thereof are added.
摘要翻译：在由（甲基）丙烯酸和沸点高于（甲基）丙烯酸作为主要成分的惰性疏水性有机液体的混合物中，（甲基）丙烯酸的精馏分离的方法中，添加次级成分，伯胺和/或其盐。

10. 发明授权

US06177590B1 Method for the production of (meth)acrylic acid esters 有权
标题翻译：（甲基）丙烯酸酯的制造方法
公开(公告)号：US06177590B1
公开(公告)日：2001-01-23
申请号：US09308253
申请日：1999-05-25
申请人： Heinrich Aichinger , Michael Fried , Gerhard Nestler , Albrecht Dams
发明人： Heinrich Aichinger , Michael Fried , Gerhard Nestler , Albrecht Dams
IPC分类号： C07C6708
CPC分类号： C07C67/08 , C07C67/58 , Y02P20/584 , C07C69/54
摘要： A process is described for preparing (meth)acrylic esters by reacting (meth)acrylic acid with C4-C12-alkanols in the presence of sulfuric acid or a mono-C4-C12-alkyl sulfate as catalyst, where the catalyst is regenerated by extraction with water from the reaction mixture and the aqueous catalyst solution is recycled back to the esterification, the concentration of unreacted alkanol in the reaction mixture to be extracted being not more than 5% by weight, based on the reaction mixture to be extracted.
摘要翻译：描述了在硫酸或作为催化剂的单C4-C12烷基硫酸盐存在下使（甲基）丙烯酸与C 4 -C 12烷醇反应制备（甲基）丙烯酸酯的方法，其中催化剂通过萃取再生将来自反应混合物的水和催化剂水溶液循环回到酯化反应中，待提取的反应混合物中未反应的链烷醇的浓度不超过5重量％，基于待萃取的反应混合物。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式