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1. 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。

2. 发明授权

US5945560A Continuous preparation of alkyl esters of (meth) acrylic acid 失效
标题翻译：连续制备（甲基）丙烯酸的烷基酯
公开(公告)号：US5945560A
公开(公告)日：1999-08-31
申请号：US791054
申请日：1997-01-28
申请人： Gabriele Iffland , Albrecht Dams , Alexander Weck , Heinrich Aichinger , Holger Herbst , Gerhard Nestler , Herbert Exner
发明人： Gabriele Iffland , Albrecht Dams , Alexander Weck , Heinrich Aichinger , Holger Herbst , Gerhard Nestler , Herbert Exner
IPC分类号： B01J27/02 , B01J31/02 , C07B41/12 , C07B61/00 , C07C67/08 , C07C67/54 , C07C69/54 , C07C69/52
CPC分类号： C07C67/08 , C07C67/54
摘要： In a process and an apparatus for the continuous preparation of alkyl esters of (meth)acrylic acid by reacting (meth)acrylic acid with alkanols having from 1 to 5 carbon atoms in a homogeneous, liquid, solvent-free phase at elevated temperature and in the presence of an acid esterification catalyst, in which the (meth)acrylic acid, the alkanol and the catalyst are fed to a reaction zone, the water formed is removed by rectification during a residence time as constituent of a mixture comprising alkanol in a rectification unit superposed on the reaction zone, the distillate thus obtained is separated into an organic phase comprising alkanol and an aqueous phase comprising water, the organic phase is returned to the rectification unit, the reaction mixture is discharged from the reaction zone and conveyed into a distillative separation zone comprising further rectification units and in the latter the alkyl (meth)acrylate formed is separated off.
摘要翻译：在（甲基）丙烯酸的烷基酯连续制备方法和装置中，通过使（甲基）丙烯酸与具有1至5个碳原子的链烷醇在高温和均相，液体，无溶剂相中将（甲基）丙烯酸，链烷醇和催化剂进料到反应区中的酸酯化催化剂的存在，在停留时间内通过精馏除去形成的水，作为在精馏中的链烷醇的混合物的组分单元重叠在反应区上，将由此获得的馏出物分离成包含链烷醇和含水水相的有机相，将有机相返回至精馏单元，将反应混合物从反应区排出并输送至蒸馏分离区包含进一步的精馏单元，后者分离形成的（甲基）丙烯酸烷基酯。

3. 发明授权

US5883288A Continuous preparation of alkyl esters of (meth)acrylic acid 失效
标题翻译：连续制备（甲基）丙烯酸的烷基酯
公开(公告)号：US5883288A
公开(公告)日：1999-03-16
申请号：US791052
申请日：1997-01-28
申请人： Gabriele Iffland , Albrecht Dams , Alexander Weck , Heinrich Aichinger , Holger Herbst , Gerhard Nestler , Herbert Exner , Willi Schmidt , Matthias Geisendorfer , Toni Dockner
发明人： Gabriele Iffland , Albrecht Dams , Alexander Weck , Heinrich Aichinger , Holger Herbst , Gerhard Nestler , Herbert Exner , Willi Schmidt , Matthias Geisendorfer , Toni Dockner
IPC分类号： B01J27/02 , B01J31/02 , C07B61/00 , C07C67/08 , C07C67/54 , C07C69/54 , C07C69/52
CPC分类号： C07C67/08
摘要： In the process for the continuous preparation of alkyl esters of (meth)acrylic acid by reacting (meth)acrylic acid with monohydric alkanols having from 1 to 8 carbon atoms in the presence of an acid esterification catalyst in a reaction zone, there is discharged from the reaction zone a product mixture which comprises the alkyl (meth)acrylate formed, the catalyst and the by-products formed during the course of the esterification having boiling points higher than that of the alkyl (meth)acrylate, and from which the alkyl (meth)acrylate is separated by distillation in a separation zone. The product mixture discharged from the reaction zone is fed to a rectification unit (I), in this unit the product mixture discharged is separated by rectification into at least one product (I) comprising the alkyl ester of (meth)acrylic acid and a product (II) comprising the catalyst, the product (I) is fed to a further rectification unit (II) and in this the alkyl ester of (meth)acrylic acid is separated off by rectification.
摘要翻译：在反应区酸性酯化催化剂存在下，使（甲基）丙烯酸与具有1〜8个碳原子的一元链烷醇反应连续制备（甲基）丙烯酸烷基酯的方法中，所述反应区包含形成的（甲基）丙烯酸烷基酯，在酯化过程中形成的催化剂和副产物的沸点高于（甲基）丙烯酸烷基酯的产物混合物，并且烷基（甲基）丙烯酸酯在分离区中蒸馏分离。将从反应区排出的产物混合物供给到精馏单元（I），在该单元中，排出的产物混合物通过精馏分离成至少一种包含（甲基）丙烯酸的烷基酯的产物（I）和产物（II），将产物（I）进料到另一精馏单元（II）中，通过精馏分离（甲基）丙烯酸的烷基酯。

4. 发明授权

US06512138B1 Preparation of (meth)acrylates 失效
标题翻译：（甲基）丙烯酸酯的制备
公开(公告)号：US06512138B1
公开(公告)日：2003-01-28
申请号：US09567983
申请日：2000-05-10
申请人： Albrecht Dams , Heinrich Aichinger , Holger Herbst , Gerhard Nestler , Jürgen Schröder
发明人： Albrecht Dams , Heinrich Aichinger , Holger Herbst , Gerhard Nestler , Jürgen Schröder
IPC分类号： C07C6952
CPC分类号： C07C67/08 , C07C67/327 , C07C69/54
摘要： The process for the esterification of (meth)acrylic acid with an alkanol in the presence of an esterification catalyst, in which unconverted starting compounds and the (meth)acrylate to be formed are separated off by distillation and an oxyester-containing bottom product is formed and is separated off, and (a) in the bottom product separated off, the oxyesters present are cleaved, if required after the addition of (meth)acrylic acid and/or oligomeric (meth)acrylic acid, directly in the presence of acid catalysts differing from (meth)acrylic acid and/or oligomeric (meth)acrylic acid, and the cleavage products are removed, a cleavage residue remaining, or (b) the oxyesters are first removed by distillation from the cleavage product separated off, a distillation residue remaining, and the oxyesters removed are cleaved, if required after addition of (meth)acrylic acid and/or oligomeric (meth)acrylic acid, in the presence of acid catalysts differing from (meth)acrylic acid and/or oligomeric (meth)acrylic acid, and the cleavage products are removed, a cleavage residue remaining, is carried out in such a way that the cleavage residue obtained in step (a) or the cleavage residue obtained in step (b) is hydrolytically cleaved together with the resulting distillation residue in the presence of water and acids or bases.
摘要翻译：在酯化催化剂存在下，（甲基）丙烯酸与烷醇的酯化反应的方法，其中未转化的起始化合物和待形成的（甲基）丙烯酸酯通过蒸馏和含有含氧酯的底部产物分离出来并分离出来，（a）在分离出的底部产物中，如果需要，在酸催化剂存在下直接加入（甲基）丙烯酸和/或低聚（甲基）丙烯酸后，存在的氧化酯被切割与（甲基）丙烯酸和/或低聚（甲基）丙烯酸不同，除去裂解产物，剩余的裂解残余物或（b）氧酯首先通过蒸馏从分离的裂解产物中除去，蒸馏残余物除去（甲基）丙烯酸和/或低聚（甲基）丙烯酸之外，如果需要，在不同于（甲基）丙烯酸和/或低聚（甲基）丙烯酸的酸催化剂的存在下，甲基）丙烯酸，并且去除裂解产物，残留切割残余物，使得步骤（a）中获得的裂解残基或步骤（b）中获得的裂解残基与在水和酸或碱的存在下产生蒸馏残余物。

5. 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）。

6. 发明授权

US6166248A Process for the separation of acrylic acid 失效
标题翻译：丙烯酸分离方法
公开(公告)号：US6166248A
公开(公告)日：2000-12-26
申请号：US147628
申请日：1999-02-04
申请人： Bernd Heida , Fritz Thiessen , Ulrich Hammon , Albrecht Dams
发明人： Bernd Heida , Fritz Thiessen , Ulrich Hammon , Albrecht Dams
IPC分类号： C07C51/25 , C07C51/48 , C07C57/05 , C07C57/07 , C07C51/16 , C07C241/00
CPC分类号： C07C51/48 , C07C57/04
摘要： A process for isolating acrylic acid forward during catalytic gas phase oxidation of propene, which entails separating acrylic acid from the gas phase oxidation reaction using an absorbent containing biphenyl, diphenyl ether or dimethyl phthalate; and extracting acrylic acid from acid water of the gas phase reaction with a solvent containing biphenyl, diphenyl ether or dimethyl phthalate.
摘要翻译： PCT No.PCT / EP97 / 04214 Sec。 371日期1999年2月4日 102（e）1999年2月4日PCT PCT 1997年8月1日PCT公布。第WO98 / 05622号公报日期1998年2月12日在丙烯的催化气相氧化中丙烯酸向前分离的方法，其需要使用含有联苯，二苯基醚或邻苯二甲酸二甲酯的吸收剂从丙烯酸与气相氧化反应分离; 并与含有联苯，二苯基醚或邻苯二甲酸二甲酯的溶剂从气相反应的酸性水中萃取丙烯酸。

7. 发明授权

US5670639A Preparation of n-vinyllactams 失效
标题翻译： n-乙烯基内酰胺的制备
公开(公告)号：US5670639A
公开(公告)日：1997-09-23
申请号：US614682
申请日：1996-03-13
申请人： Martin Schmidt-Radde , Marc Heider , Albrecht Dams , Harald Rust
发明人： Martin Schmidt-Radde , Marc Heider , Albrecht Dams , Harald Rust
IPC分类号： C07D207/26 , C07D207/267 , C07D211/76 , C07D223/10
CPC分类号： C07D207/267 , C07D211/76 , C07D223/10
摘要： N-Vinyllactams of the general formula I ##STR1## where n is from 1 to 3, are prepared by a process which comprises reaction of a lactam of the general formula II ##STR2## where n is from 1 to 3, with from 10 to 90 percent by weight of an aqueous alkali metal hydroxide solution with distillation at from 50.degree. to 250.degree. C. and from 1 to 100 mbar and with a residence time of from 0.1 to 5 hours and subsequent reaction with acetylene at from 60.degree. to 250.degree. C. and from 1 to 100 bar.
摘要翻译：通过包括将通式II的内酰胺（II）的反应的方法制备，其中n为1至3的通式I（I）的N-乙烯基内酰胺，其中n为1至3，其中n为1至 3，以10至90重量％的碱金属氢氧化物水溶液在50至250℃和1至100毫巴蒸馏下进行，停留时间为0.1至5小时，随后与乙炔反应在60℃至250℃和1至100巴之间。

8. 发明授权

US07279075B2 Thermal separating process between at least one gaseous and at least one liquid stream, of which at least one comprises (meth)acrylic monomers 有权
标题翻译：至少一种气态和至少一种液体物流之间的热分离过程，其中至少一种液体物流包含（甲基）丙烯酸单体
公开(公告)号：US07279075B2
公开(公告)日：2007-10-09
申请号：US10647241
申请日：2003-08-26
申请人： Joachim Thiel , Hugues Vandenmersch , Juergen Schroeder , Albrecht Dams
发明人： Joachim Thiel , Hugues Vandenmersch , Juergen Schroeder , Albrecht Dams
IPC分类号： B01D3/42 , C07C51/42
CPC分类号： C07C51/44 , C07C45/783 , C07C45/81 , C07C45/82 , C07C67/54 , Y10S203/11 , C07C57/04 , C07C69/54
摘要： In a thermal separating process between at least one gaseous and at least one liquid stream, of which at least one comprises (meth)acrylic monomers, in a separating column containing sieve trays as separating internals, at least some of the sieve trays are operated above an entrainment fraction of 10% by weight.
摘要翻译：在至少一种气态和至少一种液态物流之间的热分离过程中，至少一种液体物流在至少一种包含（甲基）丙烯酸类单体的分离塔中，该分离塔含有作为分离内部物质的筛板，至少一些筛板在上面操作 10％重量的夹带部分。

9. 发明授权

US5900125A Continuous preparation of alkyl esters of (meth)acrylic acid and apparatus for this purpose 失效
标题翻译：连续制备（甲基）丙烯酸的烷基酯和用于此目的的设备
公开(公告)号：US5900125A
公开(公告)日：1999-05-04
申请号：US119649
申请日：1998-07-21
申请人： Herbert Exner , Karl Baur , Toni Dockner , Christiane Potthoff , Albrecht Dams
发明人： Herbert Exner , Karl Baur , Toni Dockner , Christiane Potthoff , Albrecht Dams
IPC分类号： C07C67/08 , C07C67/54 , C07C69/54 , B01D3/34 , C07C69/52
CPC分类号： C07C67/08
摘要： In a process and an apparatus for the continuous preparation of alkyl esters of (meth)acrylic acid by reacting (meth)acrylic acid and monohydric alkanols of 1 to 8 carbon atoms in the homogeneous, liquid, solvent-free phase at elevated temperatures and in the presence of an acidic esterification catalyst, by feeding the (meth)acrylic acid, the alkanol and the acid catalyst continuously to a reaction zone, the reaction zone consists of a cascade of at least two reaction regions connected in series, and the discharge stream of one reaction region forms a feed stream of a downstream reaction region. The cascade may have from two to four reaction regions is spatially separated from one another.
摘要翻译：在（甲基）丙烯酸的烷基酯的连续制备方法和装置中，通过使（甲基）丙烯酸和1至8个碳原子的一元链烷醇在均相，液体，无溶剂相中在高温和酸性酯化催化剂的存在通过将（甲基）丙烯酸，链烷醇和酸催化剂连续进料到反应区，反应区由串联连接的至少两个反应区的级联组成，排出流的一个反应区域形成下游反应区域的进料流。级联可能具有两到四个反应区域在空间上彼此分离。

10. 发明授权

US07351310B2 Rectificative separation of fluids comprising (meth) acrylic monomers 有权
标题翻译：包含（甲基）丙烯酸单体的流体的精馏分离
公开(公告)号：US07351310B2
公开(公告)日：2008-04-01
申请号：US10658257
申请日：2003-09-10
申请人： Joachim Thiel , Albrecht Dams , Juergen Schroeder
发明人： Joachim Thiel , Albrecht Dams , Juergen Schroeder
IPC分类号： B01D3/34 , B01D5/00 , C07C51/42
CPC分类号： C07C51/44 , B01D3/14 , B01D5/0063 , C07C45/81 , C07C45/82 , C07C51/43 , C07C67/54 , Y10S203/22 , C07C47/22 , C07C57/04 , C07C69/54
摘要： A process for rectificatively separating fluids including (meth)acrylic monomers in a rectification column by directly cooling the vapor including (meth)acrylic monomers rising to the top of the rectification column to form top condensate including (meth)acrylic monomers, the condensation space at the top of the column being separated from the region of the rectification column containing the separating internals only by at least one chimney tray from which the top condensate formed is removed from the rectification column, which includes effecting the direct cooling of the vapor in the condensation space in at least two spray zones which are spatially successive and are flowed through by vapor by spraying supercooled top condensate including added polymerization inhibitor, and the temperature of the sprayed supercooled top condensate becoming lower from spray zone to spray zone in the flown direction of the vapor.
摘要翻译：通过将上升到精馏塔顶部的（甲基）丙烯酸单体直接冷却的蒸汽直接冷却，形成精馏塔中的（甲基）丙烯酸单体，形成包含（甲基）丙烯酸单体的顶部缩合物，柱的顶部仅由至少一个烟囱式塔板从含有分离内部件的精馏塔的区域分离出，从该澄清塔中形成的顶部冷凝物从精馏塔从精馏塔排出，其中包括直接冷却冷凝物中的蒸气至少两个喷雾区的空间，其空间连续并通过喷雾通过喷雾过冷顶部冷凝物（包括加入的阻聚剂）而流过，并且喷射的过冷顶部冷凝物的温度从喷射区域向喷雾区域的流动方向变低汽。

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