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

US07179875B2 Method for producing water-absorbent resins 有权
标题翻译：吸水树脂的制造方法
公开(公告)号：US07179875B2
公开(公告)日：2007-02-20
申请号：US10485484
申请日：2002-08-02
申请人： Eberhard Fuchs , Hans Martan , Gerhard Nestler , Klaus Joachim Mueller-Engel
发明人： Eberhard Fuchs , Hans Martan , Gerhard Nestler , Klaus Joachim Mueller-Engel
IPC分类号： C08F220/06
CPC分类号： C08F220/06 , A61L15/24 , A61L15/60 , C07C51/215 , C07C51/235 , C07C51/252 , C07C51/43 , C07C51/44 , C07C51/487 , C07C57/04 , C08L33/02
摘要： In a process for preparing water-absorbent resins based on acrylic acid, crude acrylic acid is firstly isolated from the reaction gases from the catalytic gas-phase oxidation of propane, propylene and/or acrolein. This is treated with an aldehyde scavenger and pure acrylic acid is separated by distillation from the treated crude acrylic acid, and this pure acrylic acid can be subjected directly to a free-radical polymerization.
摘要翻译：在制备基于丙烯酸的吸水性树脂的方法中，首先从丙烷，丙烯和/或丙烯醛的催化气相氧化反应气体中分离粗丙烯酸。用醛清除剂进行处理，经处理的粗丙烯酸通过蒸馏分离纯丙烯酸，该纯丙烯酸可直接进行自由基聚合。

2. 发明授权

US07157598B2 Method for producing an aqueous alkali acrylate solution 失效
标题翻译：碱性丙烯酸碱水溶液的制造方法
公开(公告)号：US07157598B2
公开(公告)日：2007-01-02
申请号：US10510236
申请日：2003-05-02
申请人： Eberhard Fuchs , Hans Martan , Klaus Joachim Mueller-Engel
发明人： Eberhard Fuchs , Hans Martan , Klaus Joachim Mueller-Engel
IPC分类号： C07C57/02 , C07C51/42
CPC分类号： C07C51/412 , C07C51/44 , C07C57/04
摘要： A process prepares an aqueous alkali metal acrylate solution by distillatively removing acrylic acid from a mixture as vapors and taking up the vapors immediately from the gas phase into an aqueous alkali solution.
摘要翻译：一种方法通过从混合物中蒸馏除去丙烯酸作为蒸气并将蒸气立即从气相中吸收到碱性水溶液中来制备碱金属丙烯酸水溶液。

3. 发明授权

US06207022B1 Purification of crude (meth) acrylic acid 失效
标题翻译：粗制（甲基）丙烯酸的纯化
公开(公告)号：US06207022B1
公开(公告)日：2001-03-27
申请号：US08319667
申请日：1994-10-07
申请人： Toni Dockner , Gerhard Nestler , Holger Herbst , Helmut Lermer , Hans Martan , Herbert Vogel , Herbert Exner
发明人： Toni Dockner , Gerhard Nestler , Holger Herbst , Helmut Lermer , Hans Martan , Herbert Vogel , Herbert Exner
IPC分类号： B01D334
CPC分类号： C07C51/487 , Y10S203/22 , C07C57/04
摘要： Crude (meth)acrylic acid is purified by a process in which a primary amine compound and an organic sulfonic acid are added to the crude (meth)acrylic acid and the latter is then worked up by distillation.
摘要翻译：粗（甲基）丙烯酸通过其中将伯胺化合物和有机磺酸加入到粗（甲基）丙烯酸中的方法纯化，然后将其通过蒸馏处理。

4. 发明申请

US20060205973A1 Process for preparing alkyl esters of (meth)acrylic acid 审中-公开
标题翻译：制备（甲基）丙烯酸的烷基酯的方法
公开(公告)号：US20060205973A1
公开(公告)日：2006-09-14
申请号：US11358220
申请日：2006-02-22
申请人： Thorsten Habeck , Ulrich Rauh , Thorsten Friese , Hans Martan
发明人： Thorsten Habeck , Ulrich Rauh , Thorsten Friese , Hans Martan
IPC分类号： C07C67/36
CPC分类号： C07C67/327 , C07C67/08 , C07C67/54 , C07C69/54
摘要： A process is described for continuously preparing alkyl esters of (meth)acrylic acid by reacting (meth)acrylic acid and alkanols having from 1 to 5 carbon atoms in homogeneous, liquid, solvent-free phase at elevated temperature and in the presence of an acidic esterification catalyst, in which the (meth)acrylic acid, the alkanol and the acidic esterification catalyst are fed to a reaction zone (5, 6), a reaction mixture (21) is discharged from the reaction zone (5, 6), and is introduced into a rectification unit I and separated by addition of water into a top stream (23), comprising the alkyl ester of (meth)acrylic acid, and a bottom stream (22), and a substream of the bottom stream (22) from the rectification unit I is fed to a residue dissociation unit IV, which comprises a dissociating boiler (61), and is separated therein into a top stream (29), which is recycled into the rectification unit I and a bottom stream (40), which is removed from the system, wherein the residue dissociation unit IV, as well as the dissociating boiler (61), further comprises a rectification column (62), the water content of the liquid obtained at the bottommost stage thereof being less than 0.1% by weight.
摘要翻译：描述了一种通过使（甲基）丙烯酸和具有1至5个碳原子的链烷醇在均相，液体，无溶剂相中在升高的温度和酸性存在下连续制备（甲基）丙烯酸的烷基酯的方法酯化催化剂，其中将（甲基）丙烯酸，链烷醇和酸性酯化催化剂加入到反应区（5,6）中，将反应混合物（21）从反应区（5,6）排出，被引入精馏单元I中，并通过加入包含（甲基）丙烯酸的烷基酯和底部流（22））的顶部流（23）和底部流（22）的分流而分离，来自精馏单元I的残渣解离单元IV包含解离锅炉（61），并分离成顶部物流（29），其被再循环到精馏单元I和底部流（40）中，，其从系统中移除，其中残渣解离单元IV以及解离式锅炉（61）还包括精馏塔（62），其最底部得到的液体的含水量小于0.1重量％。

5. 发明授权

US06458989B1 Method for producing (meth)acrylic acid and (meth)acrylic acid esters 有权
标题翻译：（甲基）丙烯酸和（甲基）丙烯酸酯的制备方法
公开(公告)号：US06458989B1
公开(公告)日：2002-10-01
申请号：US09646126
申请日：2000-09-28
申请人： Heinrich Aichinger , Hans Martan , Gerhard Nestler
发明人： Heinrich Aichinger , Hans Martan , Gerhard Nestler
IPC分类号： C07C6748
CPC分类号： C07C51/50 , B01D3/225 , C07C51/44 , C07C51/487 , C07C67/08 , C07C57/04 , C07C69/54
摘要： A process for preparing pure (meth)acrylic acid or a (meth)acrylate starting from a crude (meth)acrylic acid, which comprises the following stages: A: treating the crude (meth)acrylic acid with at least one compound which is able to remove aldehydes, to give an aldehyde-free crude (meth)acrylic acid; B: subjecting the aldehyde-free crude (meth)acrylic acid to imprecise distillation, to give a low-boiling fraction comprising (meth)acrylic acid and acetic acid and a high-boiling fraction comprising (meth)acrylic acid and high boilers; C: isolating a pure (meth)acrylic acid from the high-boiling fraction and, if desired, D: esterifying the low-boiling fraction comprising (meth)acrylic acid and acetic acid that is obtained in stage B by means of one or more alkanols, to give an esterification mixture comprising one or more (meth)acrylates, one or more acetic esters, and one or more alkanols.
摘要翻译：一种从粗（甲基）丙烯酸开始制备纯（甲基）丙烯酸或（甲基）丙烯酸）的方法，其包括以下阶段：A：用至少一种能够去除醛，得到无醛的粗（甲基）丙烯酸; B：使无醛粗（甲基）丙烯酸不精确地进行蒸馏，得到包含（甲基）丙烯酸和乙酸的低沸点馏分以及包含（甲基）丙烯酸和高沸点剂的高沸点馏分; C：从高沸点馏分中分离出纯的（甲基）丙烯酸，如果需要，D：酯化包含（甲基）丙烯酸的低沸点馏分通过一种或多种链烷醇在阶段B中获得的酸和乙酸，得到包含一种或多种（甲基）丙烯酸酯，一种或多种乙酸酯和一种或多种链烷醇的酯化混合物。

6. 发明授权

US5144091A Preparation of acrolein or methacrolein by actalytic gas-phase oxidation of propene or isobutene 失效
标题翻译：丙烯酸或甲基纤维素通过丙烯酸或丙烯酸的活性气相氧化法制备
公开(公告)号：US5144091A
公开(公告)日：1992-09-01
申请号：US732910
申请日：1991-07-19
申请人： Hans Martan , Ulrike Wegerle , Wilhelm Ruppel , Lothar Riekert , Dieter Becker , Michael Kotter
发明人： Hans Martan , Ulrike Wegerle , Wilhelm Ruppel , Lothar Riekert , Dieter Becker , Michael Kotter
IPC分类号： B01J23/88 , B01J23/887 , B01J27/19 , B01J27/192 , C07B61/00 , C07C45/35 , C07C47/22
CPC分类号： B01J27/192 , B01J23/002 , B01J23/8876 , C07C45/35 , B01J2523/00
摘要： A process for the catalytic gas-phase oxidation of propene or isobutene to acrolein or methacrolein in a tubular fixed bed reactor or catalytically active oxides with a .gtoreq.90% conversion of the initial olefin on a single passage, wherein the temperature of the gases containing the reactants in the direction of flow along the tubes from their entrance until the conversion of the initial olefin is from 30 to 70% is from 360.degree. to 420.degree. C. and is then adjusted to from 360.degree. to 300.degree. C. until the conversion of the initial olefin is from 80 to 90% and is thereafter maintained at from 330.degree. to 390.degree. C. until the gases emerge from the tubes, is described.
摘要翻译：在管式固定床反应器中催化气相氧化丙烯或异丁烯至丙烯醛或甲基丙烯醛的方法或在单一通道上具有初始烯烃转化率> 90％的催化活性氧化物的方法，其中气体的温度在反应物的入口方向沿着管的流动方向含有反应物，直到初始烯烃的转化率为30-70％为360℃至420℃，然后调节至360℃至300℃直至描述了初始烯烃的转化率为80-90％，然后保持在330℃至390℃，直到气体从管中出来。

7. 发明申请

US20060205972A1 PROCESS FOR PREPARING ALKYL ESTERS OF (METH)ACRYLIC ACID 审中-公开
标题翻译：（甲基）丙烯酸的烷基酯的制备方法
公开(公告)号：US20060205972A1
公开(公告)日：2006-09-14
申请号：US11276601
申请日：2006-03-07
申请人： Anthony CLYMO , Armin DIEFENBACHER , Thorsten FRIESE , Hans MARTAN
发明人： Anthony CLYMO , Armin DIEFENBACHER , Thorsten FRIESE , Hans MARTAN
IPC分类号： C07C69/52
CPC分类号： C07C67/08 , C07C67/54 , C07C69/54
摘要： A process is described for continuously preparing alkyl esters of (meth)acrylic acid by reacting (meth)acrylic acid and alkanols having from 1 to 5 carbon atoms in homogeneous, liquid, solvent-free phase at elevated temperature and in the presence of an acidic esterification catalyst, in which the (meth)acrylic acid, the alkanol and the acidic esterification catalyst are fed to a reaction zone (5, 6), the water formed during a residence time is removed rectificatively as a constituent of an alkanol-comprising mixture in a rectification unit III attached to the reaction zone (5, 6), the distillate obtained here is separated into an alkanol-comprising organic phase and a water-comprising aqueous phase, the organic phase is recycled into the rectification unit III and the aqueous phase is discharged, and a reaction mixture (21) is discharged from the reaction zone (5, 6), which comprises feeding the reaction mixture (21) discharged from the reaction zone (5, 6) to a catalyst removal unit V and separating it in the catalyst removal unit V into a top stream (56) comprising the alkyl ester of (meth)acrylic acid and depleted in acidic esterification catalyst, and a bottom stream (54) comprising the predominant portion of the acidic esterification catalyst and depleted in water, and introducing the top stream (56) comprising the alkyl ester of (meth)acrylic acid into a rectification unit I and, with addition of water, separating it into a top stream (23) comprising the alkyl ester of (meth)acrylic acid, and a bottom stream (52).
摘要翻译：描述了一种通过使（甲基）丙烯酸和具有1至5个碳原子的链烷醇在均相，液体，无溶剂相中在升高的温度和酸性存在下连续制备（甲基）丙烯酸的烷基酯的方法其中将（甲基）丙烯酸，链烷醇和酸性酯化催化剂加入到反应区（5,6）中，在停留时间内形成的水作为含链烷醇的混合物的组分被精馏除去在连接到反应区（5,6）的精馏单元III中，将此处获得的馏出物分离成含链烷醇的有机相和含水的水相，将有机相再循环到精馏单元III中，将反应混合物（21）从反应区（5,6）排出，其中包括将从反应区（5,6）排出的反应混合物（21）进料到催化剂r 表示单元V并将其在催化剂去除单元V中分离成包含（甲基）丙烯酸的烷基酯和贫化的酸性酯化催化剂的顶部流（56），以及包含主要部分酸性的底部流（54）酯化催化剂和耗尽水，并将包含（甲基）丙烯酸的烷基酯的顶部流（56）引入精馏单元I中，并加入水将其分离成包含烷基酯的顶部流（23）的（甲基）丙烯酸和底部流（52）。

8. 发明授权

US07012157B2 Preparation of (meth)acrylic acid 失效
标题翻译：（甲基）丙烯酸的制备
公开(公告)号：US07012157B2
公开(公告)日：2006-03-14
申请号：US10934624
申请日：2004-09-07
申请人： Frieder Borgmeier , Frank Rosowski , Hans Martan , Klaus Joachim Müller-Engel
发明人： Frieder Borgmeier , Frank Rosowski , Hans Martan , Klaus Joachim Müller-Engel
IPC分类号： C07C51/16
CPC分类号： C07C51/215 , B01J23/002 , B01J23/28 , B01J23/8877 , B01J27/0576 , B01J35/0006 , B01J37/0045 , B01J2523/00 , C07C57/04 , B01J2523/55 , B01J2523/56 , B01J2523/64 , B01J2523/68 , B01J2523/847 , B01J2523/32
摘要： A process for preparing (meth)acrylic acid, in which a saturated hydrocarbon precursor compound is conducted through a catalyst charge which consists of two spatially successive catalyst beds I, II in the flow direction of the reaction mixture, each of which contains different catalysts and has different reaction-selectivity behavior.
摘要翻译：一种制备（甲基）丙烯酸的方法，其中饱和烃前体化合物通过催化剂装料进行，催化剂装料由反应混合物流动方向上的两个空间连续的催化剂床I，II组成，每个催化剂床含有不同的催化剂和具有不同的反应选择性行为。

9. 发明申请

US20050096445A1 Method for producing an aqueous alkali acrylate solution 失效
标题翻译：碱性丙烯酸碱水溶液的制造方法
公开(公告)号：US20050096445A1
公开(公告)日：2005-05-05
申请号：US10510236
申请日：2003-05-02
申请人： Eberhard Fuchs , Hans Martan , Klaus Muller-Engel
发明人： Eberhard Fuchs , Hans Martan , Klaus Muller-Engel
IPC分类号： C07C51/41 , C07C51/44 , C07C57/04 , C07C51/42 , C08F220/46
CPC分类号： C07C51/412 , C07C51/44 , C07C57/04
摘要： A process prepares an aqueous alkali metal acrylate solution by distillatively removing acrylic acid from a mixture as vapors and taking up the vapors immediately from the gas phase into an aqueous alkali solution.
摘要翻译：一种方法通过从混合物中蒸馏除去丙烯酸作为蒸汽并将蒸气立即从气相吸收到碱性水溶液中来制备碱金属丙烯酸水溶液。

10. 发明授权

US5482597A Purification of crude (meth)acrylic acid 失效
标题翻译：粗制（甲基）丙烯酸的纯化
公开(公告)号：US5482597A
公开(公告)日：1996-01-09
申请号：US347131
申请日：1994-11-23
申请人： Holger Herbst , Gerhard Nestler , Jerry Darlington , Hans Martan
发明人： Holger Herbst , Gerhard Nestler , Jerry Darlington , Hans Martan
IPC分类号： C07C57/075 , C07C51/44 , C07C57/055 , C07C57/07 , B01D3/34
CPC分类号： C07C51/44 , Y10S203/22
摘要： In a process for purifying crude (meth)acrylic acid, the crude (meth)acrylic acid is worked up by distillation after addition of an organic carboxylic acid hydrazide and, if desired, an organic sulfonic acid.
摘要翻译：在纯化（甲基）丙烯酸粗品的方法中，粗制的（甲基）丙烯酸在加入有机羧酸酰肼后，如果需要，可加入有机磺酸。

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