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

US5683553A Preparation of 3-chlorophthalic anhydride 失效
标题翻译： 3-氯邻苯二甲酸酐的制备
公开(公告)号：US5683553A
公开(公告)日：1997-11-04
申请号：US580252
申请日：1995-12-28
申请人： Karl Gerhard Baur , Erwin Brunner , Eckhardt Brandt
发明人： Karl Gerhard Baur , Erwin Brunner , Eckhardt Brandt
IPC分类号： C07D307/89 , B01D3/14 , C07C51/573 , B01D3/42
CPC分类号： C07C51/573
摘要： A process for preparing essentially pure 3-chlorophthalic anhydride from a mixture in which 3-chlorophthalic anhydride is present in addition to 4,5-dichlorophthalic anhydride, which involves first distilling off a mixture of 3-chlorophthalic anhydride and 4,5-dichlorophthalic anhydride, so that the obtained bottoms is essentially free of 4,5-dichlorophthalic anhydride, and then by distillation of the obtained bottoms, recovering 3-chlorophthalic anhydride in a second distillation step. The starting mixture is preferably prepared without solvent in a melt by incomplete chlorination of phthalic anhydride using FeCl.sub.3 as a catalyst.
摘要翻译：除了4,5-二氯邻苯二甲酸酐之外，还存在其中存在3-氯邻苯二甲酸酐的混合物中制备基本上纯的3-氯邻苯二甲酸酐的方法，其涉及首先蒸馏出3-氯邻苯二甲酸酐和4,5-二氯邻苯二甲酸酐的混合物得到的底物基本上不含4,5-二氯邻苯二甲酸酐，然后蒸馏得到的底物，在第二蒸馏步骤中回收3-氯邻苯二甲酸酐。起始混合物优选通过使用FeCl 3作为催化剂不完全氯化邻苯二甲酸酐而在熔体中无溶剂制备。

2. 发明授权

US4287379A Process for obtaining isobutene from C.sub.4 -hydrocarbon mixtures containing isobutene 失效
标题翻译：从含有异丁烯的C 4烃混合物中获得异丁烯的方法
公开(公告)号：US4287379A
公开(公告)日：1981-09-01
申请号：US137750
申请日：1980-04-07
申请人： Erwin Brunner , Eckart Schubert , Alfred Lindner , Franz Merger , Klaus Volkamer , Max Strohmeyer , Gerhard Sandrock
发明人： Erwin Brunner , Eckart Schubert , Alfred Lindner , Franz Merger , Klaus Volkamer , Max Strohmeyer , Gerhard Sandrock
IPC分类号： B01J31/00 , C07B61/00 , C07C1/00 , C07C7/148 , C07C11/09 , C07C41/42 , C07C67/00 , C07C7/00
CPC分类号： C07C41/42 , C07C11/09 , C07C41/06 , C07C7/14891
摘要： A process for obtaining isobutene from a C.sub.4 -hydrocarbon mixture containing isobutene, by reacting the mixture with a primary alcohol in the presence of an acid condensing agent and decomposing the resulting tertiary ether in the presence of an acid catalyst at an elevated temperature, wherein a primary C.sub.3 - or C.sub.4 -alcohol is used.
摘要翻译：通过在酸缩合剂存在下使该混合物与伯醇反应并在酸催化剂存在下在升高的温度下分解得到的叔乙醚，从含有异丁烯的C 4烃混合物中获得异丁烯的方法，其中a 使用初级C3-或C4-醇。

3. 发明授权

US5030328A Method of separating .gamma.-butyrolactone from mixtures containing diethyl succinate 失效
标题翻译：从含琥珀酸二乙酯的混合物中分离γ-丁内酯的方法
公开(公告)号：US5030328A
公开(公告)日：1991-07-09
申请号：US609435
申请日：1990-11-05
申请人： Rolf Fischer , Peter Stops , Erwin Brunner , Rudolf Weigand
发明人： Rolf Fischer , Peter Stops , Erwin Brunner , Rudolf Weigand
IPC分类号： C07D307/33 , C07D315/00
CPC分类号： C07D315/00 , Y10S203/20
摘要： A method of separating .gamma.-butyrolactone from a mixture containing ethanol, tetrahydrofuran, water, n-butanol, 1,4-butanediol, diethyl succinate and .gamma.-butyrolactone, by distillation in vacuum columns.
摘要翻译：通过蒸馏在真空塔中从含有乙醇，四氢呋喃，水，正丁醇，1,4-丁二醇，琥珀酸二乙酯和γ-丁内酯的混合物中分离γ-丁内酯的方法。

4. 发明授权

US4681946A Preparation of nicotinamide 失效
标题翻译：制备烟酰胺
公开(公告)号：US4681946A
公开(公告)日：1987-07-21
申请号：US797990
申请日：1985-11-14
申请人： Karl G. Baur , Volker Diehl , Peter Stops , Hans Hellbach , Erwin Brunner
发明人： Karl G. Baur , Volker Diehl , Peter Stops , Hans Hellbach , Erwin Brunner
IPC分类号： C07D213/82 , C07D213/81 , C07B43/06
CPC分类号： C07D213/81
摘要： A process for the preparation of nicotinamide by amidation of a nicotinic acid/nicotinamide melt, vacuum distillation of the amidation mixture, removal of the nicotinamide as the bottom product and recycling of the top product, depleted with respect to nicotinamide, into the amidation stage together with addition of fresh amounts of nicotinic acid.
摘要翻译：通过烟酰胺/烟酰胺熔融物的酰胺化制备烟酰胺的方法，将酰胺化混合物真空蒸馏，除去作为底部产物的烟酰胺和将烟酰胺消耗的顶部产物再循环到酰胺化阶段中加入新鲜的烟酸。

5. 发明授权

US5419507A Reel for strip-like recording substrates, in particular for photographic films 失效
标题翻译：用于带状记录基材的卷轴，特别是用于照相胶片
公开(公告)号：US5419507A
公开(公告)日：1995-05-30
申请号：US109145
申请日：1993-08-19
申请人： Josef Barth , Erwin Brunner
发明人： Josef Barth , Erwin Brunner
IPC分类号： B65H75/28 , G03B17/30 , G03B17/26
CPC分类号： G03B17/30 , G03B2217/261
摘要： A reel for strip-like recording substrates, in particular photographic films, with a slot provided in the reel core and at least one hook provided therein for fixing the end of the tape inserted into the slot, wherein the upper and lower side of the hook are joined together by an oblique face at the end opposite the film insertion side, in such a manner that the hook tapers towards the hook end and the hook surface is longer than the hook under-side, and wherein any chosen sections parallel to the under-side of the hook through the oblique face produce arcuate lines of intersection, ensuring secure insertion of the film end.
摘要翻译：用于带状记录基板的卷轴，特别是照相胶片，带有设置在卷盘芯中的槽和设置在其中的至少一个钩，用于固定插入槽中的带的端部，其中钩的上侧和下侧通过在与胶片插入侧相对的一端处的倾斜面接合在一起，使得钩朝向钩端部和钩表面比钩下侧更长，并且其中任何选定的部分平行于下面的部分通过斜面的钩的侧面产生弓形线的交点，确保胶片端部的安全插入。

6. 发明授权

US5362399A Removal of water from a phosgene recycle stream 失效
标题翻译：从光气再循环流中除去水
公开(公告)号：US5362399A
公开(公告)日：1994-11-08
申请号：US998491
申请日：1992-12-30
申请人： Hans V. Schwarz , Erwin Brunner
发明人： Hans V. Schwarz , Erwin Brunner
IPC分类号： B01D15/04 , B01J31/08 , B01J41/04
CPC分类号： B01J31/08 , B01J41/043
摘要： The invention relates to a process for removing water traces from a liquid phosgene stream in chemical processes which employ a phosgenation step. Water traces are removed from a liquid phosgene stream containing at least 60 weight percent phosgene by contacting the stream with a strongly basic macroreticular anion exchange resin which catalyzes the reaction between phosgene and the water traces.
摘要翻译：本发明涉及在采用光气化步骤的化学方法中从液体光气流中除去水痕迹的方法。通过使流与强碱性大网络阴离子交换树脂接触，从含有至少60重量％光气的液体光气流中除去水痕迹，所述强碱性大网络阴离子交换树脂催化光气和水迹之间的反应。

7. 发明授权

US5360905A Recovery of caprolactam from oligomers and/or polymers of caprolactam 失效
标题翻译：从己内酰胺的低聚物和/或聚合物回收己内酰胺
公开(公告)号：US5360905A
公开(公告)日：1994-11-01
申请号：US60972
申请日：1993-05-14
申请人： Hugo Fuchs , Claus-Ulrich Priester , Gerald Neubauer , Erwin Brunner , Josef Ritz , Michael Kopietz
发明人： Hugo Fuchs , Claus-Ulrich Priester , Gerald Neubauer , Erwin Brunner , Josef Ritz , Michael Kopietz
IPC分类号： C08J11/00 , C07D201/12 , C08J11/14
CPC分类号： C07D201/12
摘要： A process for recovering caprolactam from oligomers and/or polymers of caprolactam comprises the following steps:a) treating oligomers and/or polymers of caprolactam with from 1 to 20 parts by weight of water per part by weight of oligomer or polymer at from 200.degree. to 350.degree. C. under superatmospheric pressure with a residence time of from 0.5 to 10 hours to form an aqueous reaction mixture comprising polycaprolactam, monomeric caprolactam and oligomers thereof, andb) passing the aqueous reaction mixture obtained in a) into a fluidized bed of alumina at from 250.degree. to 400.degree. C. to obtain a mixture of steam and caprolactam.
摘要翻译：从己内酰胺的低聚物和/或聚合物中回收己内酰胺的方法包括以下步骤：a）在200℃下用每重量份低聚物或聚合物1至20重量份水处理己内酰胺的低聚物和/或聚合物在超大气压下加热至350℃，停留时间为0.5至10小时，以形成包含聚己内酰胺，单体己内酰胺及其低聚物的含水反应混合物，和b）将a）中得到的含水反应混合物送入流化床氧化铝在250-400℃下反应，得到蒸汽与己内酰胺的混合物。

8. 发明授权

US5149861A Recovery of trialkylamines and methyl formate from mixtures obtained in the preparation of trimethylolalkanes 失效
标题翻译：三氯甲烷制备中获得的混合物中的丙烯酰胺和甲基丙烯酸的回收
公开(公告)号：US5149861A
公开(公告)日：1992-09-22
申请号：US664463
申请日：1991-03-01
申请人： Franz Merger , Peter Hettinger , Leopold Hupfer , Juergen Paetsch , Heribert Deck , Heinz Auer , Erwin Brunner
发明人： Franz Merger , Peter Hettinger , Leopold Hupfer , Juergen Paetsch , Heribert Deck , Heinz Auer , Erwin Brunner
IPC分类号： C07C69/06 , C07C27/00 , C07C27/02 , C07C29/38 , C07C29/74 , C07C29/88 , C07C31/22 , C07C67/00 , C07C67/03 , C07C67/08 , C07C209/00 , C07C209/86 , C07C211/03 , C07C211/05
CPC分类号： C07C29/88 , C07C67/03
摘要： Trialkylamines and methyl formate are recovered from reaction mixtures obtained in the preparation of trimethylolalkanes by reaction of n-alkanals with from 2.2 to 4.5 moles of formaldehyde in aqueous solution in the presence of from 0.6 to 3 mole of trialkylamine, each quantity based on 1 mole of alkanal, and subsequent hydrogenation in a process wherein the crude reaction mixturea) is heated to from 100.degree. to 200.degree. C., the water present in the reaction mixture is substantially separated off by distillation, together with any excess free trialkylamine, the trialkylamine present in the form of a trialkylammonium formate is freed to form a trimethylolalkane formate, the trialkylamine is distilled off and the trimethylolalkane formate is transesterified with methanol to trimethylolalkane and methyl formate in the presence or absence of a catalytic amount of an alkali metal alkoxide or alkaline earth metal alkoxide, orb) is substantially dewatered, any excess free trialkylamine being removed at the same time, the trialkylamine present in the form of a trialkylammonium formate is separated off by admixing the remaining mixture with methanol and heating the admixture to from 100.degree. to 200.degree. C. to form methyl formate and trialkylamine.
摘要翻译：三烷基胺和甲酸甲酯从制备三羟甲基烷烃得到的反应混合物中回收，通过在0.6至3摩尔三烷基胺存在的情况下，正链烷与2.2至4.5摩尔甲醛在水溶液中的反应，每个量基于1摩尔然后在将粗反应混合物a）加热至100至200℃的过程中随后进行氢化，反应混合物中存在的水通过蒸馏与任何过量的游离三烷基胺基本上分离出来，以三烷基铵甲酸盐形式存在的三烷基胺可以形成甲酸三羟甲基烷烃，在存在或不存在催化量的碱金属醇盐的条件下，将三烷基胺蒸馏除去，甲醇三甲氧基链烷烃甲酯与甲醇酯交换为三羟甲基烷烃和甲酸甲酯，或碱土金属醇盐或b）基本脱水，任何过量游离的三烷基胺为同时除去以三烷基甲酸铵形式存在的三烷基胺，通过将剩余的混合物与甲醇混合并将混合物加热至100至200℃以分离，形成甲酸甲酯和三烷基胺。

9. 发明授权

US4320232A Process for conjointly preparing methyl tert.-butyl ether and obtaining isobutene 失效
标题翻译：共同制备甲基叔丁基醚并获得异丁烯的方法
公开(公告)号：US4320232A
公开(公告)日：1982-03-16
申请号：US161041
申请日：1980-06-19
申请人： Klaus Volkamer , Alfred Lindner , Franz Merger , Ulrich Wagner , Erwin Brunner , Gerhard Sandrock , Max Strohmeyer
发明人： Klaus Volkamer , Alfred Lindner , Franz Merger , Ulrich Wagner , Erwin Brunner , Gerhard Sandrock , Max Strohmeyer
IPC分类号： C07C41/05 , C07C1/00 , C07C7/148 , C07C11/09 , C07C41/00 , C07C41/06 , C07C43/04 , C07C67/00
CPC分类号： C07C41/06 , C07C7/14891
摘要： A process for conjointly preparing methyl tert.-butyl ether and obtaining isobutene from an isobutene-containing C.sub.4 -hydrocarbon mixture. In the process the C.sub.4 -hydrocarbon mixture is reacted, in one or more etherification stages, with methanol and a primary C.sub.3 - or C.sub.4 -alcohol in the presence of an acid condensing agent, the resulting reaction mixture or mixtures are then separated into a fraction containing the unconverted hydrocarbons, the methyl tert.-butyl ether and a fraction containing the C.sub.3 - or C.sub.4 -alkyl tert.-butyl ether. Thereafter, the C.sub.3 - or C.sub.4 -alkyl tert.-butyl ether is decomposed at an elevated temperature, in the presence of an acid catalyst, into isobutene and primary C.sub.3 - or C.sub.4 -alcohol.
摘要翻译：一种联合制备甲基叔丁基醚并从含异丁烯的C4-烃混合物中获得异丁烯的方法。在该过程中，C4-烃混合物在一个或多个醚化阶段中，在酸缩合剂存在下与甲醇和伯C3或C4-醇反应，然后将所得反应混合物或混合物分离成馏分含有未转化的烃，甲基叔丁基醚和含有C3-或C4-烷基叔丁基醚的级分。此后，C3-或C4-烷基叔丁基醚在酸催化剂存在下在升高的温度下分解成异丁烯和伯C 3 - 或C 4 - 醇。

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