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

US5326897A Process for the stabilization of ethanolic ethylmagnesium carbonate solutions 失效
标题翻译：乙醇化碳酸乙酯溶液稳定化方法
公开(公告)号：US5326897A
公开(公告)日：1994-07-05
申请号：US24528
申请日：1993-03-01
申请人： Erhard Jagers , Andreas Seidel , Karen Pottkamper
发明人： Erhard Jagers , Andreas Seidel , Karen Pottkamper
IPC分类号： B41M7/00 , C07C29/68 , C07C31/30 , C07F3/00 , D21H25/18 , C07C69/96 , C07F3/02
CPC分类号： D21H25/18 , B41M7/0063 , C07C29/68 , C07C31/30 , C07F3/003 , C12C11/02
摘要： In a process for the stabilization of a solution of ethylmagnesium carbonate in ethanol, which has been prepared by the reaction of a suspension of magnesium ethylate in ethanol with carbon dioxide, 0.2 to 1.0% by weight of water, based on the ethylmagnesium carbonate solution, is added to the solution or its starting materials.
摘要翻译：在将乙醇镁的乙醇悬浮液与二氧化碳反应制备的乙基碳酸镁在乙醇中的溶液稳定化的方法中，基于乙基碳酸镁溶液为0.2〜1.0重量％的水，被添加到溶液或其起始材料中。

2. 发明授权

US5124290A Process for removing metallic corrosion products from carbonylation reactions carried out under anhydrous conditions 失效
标题翻译：从非强制性条件下运输的碳化反应中除去金属腐蚀产物的方法
公开(公告)号：US5124290A
公开(公告)日：1992-06-23
申请号：US777066
申请日：1991-10-16
申请人： Heinz Erpenbach , Reinhard Gradl , Erhard Jagers , Andreas Seidel , Peter Prinz
发明人： Heinz Erpenbach , Reinhard Gradl , Erhard Jagers , Andreas Seidel , Peter Prinz
IPC分类号： B01J38/00 , C07B61/00 , C07C51/12 , C07C51/42 , C07C51/47 , C07C51/573 , C07C53/08 , C07C53/12
CPC分类号： C07C51/573 , C07C51/47
摘要： A process for removing metallic corrosion products from carbonylation reactions which are carried out under anhydrous conditions and in which methyl acetate and/or methanol and/or dimethyl ether are reacted over a noble metal catalyst system which comprises a noble metal of group VIII of the periodic table of the elements, a co-catalyst, such as iodide or bromide, in particular methyl iodide, and a promoter, such as an organophosphonium or organoammonium salt, and if appropriate a lithium salt, to give acetic acid and/or acetic anhydride is described, the process comprisinga) bringing the reaction solution which is contaminated with metallic corrosion products and contains the catalyst system into contact with an ion exchanger;b) separating this reaction solution which has been brought into contact in this way from the ion exchanger;c) desorbing the promoter adsorbed on the ion exchanger before regeneration with acetic acid and/or acetic anhydride;d) combining the eluate obtained in step c) with the reaction solution separated off in step b) and recycling the components together into the carbonylation reaction;e) regenerating the ion exchanger obtained from step c) with a strong mineral acid; andf) washing the ion exchanger regenerated in this way with acetic acid and/or acetic anhydride until free from water, before use in step a).
摘要翻译：一种在无水条件下进行羰基化反应的金属腐蚀产物的方法，其中乙酸甲酯和/或甲醇和/或二甲醚在贵金属催化剂体系上反应，贵金属催化剂体系包含周期性的第VIII族贵金属表中的元素，助催化剂如碘化物或溴化物，特别是甲基碘，以及促进剂如有机鏻盐或有机铵盐，以及如果合适的话，锂盐，得到乙酸和/或乙酸酐是描述了该方法，该方法包括：a）将被金属腐蚀产物污染的反应溶液带入与离子交换器接触的催化剂体系; b）将已经以这种方式接触的反应溶液从离子交换器分离; c）在用乙酸和/或乙酸酐再生之前解吸吸附在离子交换剂上的促进剂; d）将步骤c）中获得的洗脱液与步骤b）中分离的反应溶液合并，并将组分一起再循环到羰基化反应中; e）用强无机酸再生步骤c）获得的离子交换剂; 以及f）在步骤a）中使用之前，用乙酸和/或乙酸酐洗涤离子交换剂，直至不含水再洗涤。

3. 发明授权

US5306398A Process for the purification of waste acetic acid 失效
标题翻译：废乙酸净化方法
公开(公告)号：US5306398A
公开(公告)日：1994-04-26
申请号：US978905
申请日：1992-11-19
申请人： Andreas Seidel , Alfred Hauser , Erhard Jagers
发明人： Andreas Seidel , Alfred Hauser , Erhard Jagers
IPC分类号： C07C51/44 , C07C51/487 , C07C51/50 , C07C53/08 , B01D3/34
CPC分类号： C07C51/487
摘要： Waste acetic acid, which is contaminated by nitrogen compounds and also by hardly hydrolyzable halogen compounds, is purified by adding a complex-forming metal or one of the compounds thereof and a basic compound. The resultant mixture is kept at a temperature between 25.degree. and 118.degree. C. over a period of time of 1 to 6 hours. Finally, purified acetic acid is removed from the mixture by distilling.
摘要翻译：通过加入络合物形成金属或其一种化合物和碱性化合物来纯化被氮化合物污染并且难以水解的卤素化合物的废乙酸。将所得混合物在1至6小时的时间段内保持在25摄氏度至118摄氏度之间的温度。最后，通过蒸馏从混合物中除去纯化的乙酸。

4. 发明授权

US5403954A Preparation of methyltris(m-sulfonatophenyl) phosphonium iodide trisodium salt and use thereof in carbonylation reactions to prepare carboxylic acids and/or their esters 失效
标题翻译：制备甲基三（间磺苯基）碘化鏻三钠盐及其在羰基化反应中的用途，以制备羧酸和/或其酯
公开(公告)号：US5403954A
公开(公告)日：1995-04-04
申请号：US177909
申请日：1994-01-06
申请人： Peter Heymanns , Erhard Jagers , Andreas Seidel , Hermann Berwe
发明人： Peter Heymanns , Erhard Jagers , Andreas Seidel , Hermann Berwe
IPC分类号： C07C51/12 , C07C67/36 , C07F9/54
CPC分类号： C07F9/5442 , C07C51/12 , C07C67/36
摘要： In a process for preparing methyltris(m-sulfonatophenyl)phosphonium iodide trisodium salt, the sodium salt of trisulfonated triphenylphosphine and methanol are introduced as the initial charge, a solution of methyl iodide in methanol is added dropwise at elevated temperature, and after an additional reaction time the reaction product is evaporated to dryness in vacuo.Methyltris(m-sulfonatophenyl)phosphonium iodide trisodium salt can be used to prepare carboxylic acids and/or their esters by carbonylation of saturated aliphatic alcohols having from 1 to 20 carbon atoms or their halo, ester or ether derivatives over a rhodium catalyst in the presence of water and methyl iodide under a CO partial pressure of from 0.3 to 200 bar at a temperature of from 100.degree. to 240.degree. C., provided methyltris(m-sulfonatophenyl)phosphonium iodide trisodium salt and carboxylic acid are added to the liquid phase prior to carbonylation.
摘要翻译：在制备甲基三（m-磺化苯基）碘化鏻三钠盐的方法中，引入三磺化三苯基膦和甲醇的钠盐作为初始电荷，在升高的温度下滴加甲基碘在甲醇中的溶液，并且在另外的反应将反应产物真空蒸发至干。甲基三（间磺酸苯基）碘化鏻三钠盐可用于通过羰基化具有1至20个碳原子的饱和脂族醇或其卤代，酯或醚衍生物在铑催化剂的存在下制备羧酸和/或其酯的水和甲基碘在温度为100〜240℃的CO分压下，在0.3〜200巴的温度下，将碘化三甲基三（m-磺苯基）鏻三钠盐和羧酸加入到液相中到羰基化。

5. 发明授权

US5075485A Process for the preparation of N-acylphosphinothricin diesters 失效
标题翻译：制备N-氨基磷酰胺胶囊的方法
公开(公告)号：US5075485A
公开(公告)日：1991-12-24
申请号：US373330
申请日：1989-06-29
申请人： Manfred Bohshar , Heinz Erpenbach , Erhard Jagers , Hanss-Jerg Kleiner , Hans-Peter Koll
发明人： Manfred Bohshar , Heinz Erpenbach , Erhard Jagers , Hanss-Jerg Kleiner , Hans-Peter Koll
IPC分类号： C07F9/32
CPC分类号： C07F9/3211
摘要： In order to prepare N-acylphosphinothricin diesters, acetals of methyl-(3-oxopropyl)phosphinic acid esters of the formula ##STR1## are reacted in a dipolar aprotic solvent with a carboxylic acid amide and carbon monoxide in the presence of hydrogen gas using a cobalt compound as a catalyst, where the radical R' is alkyl or aryl or aralkyl.
摘要翻译：为了制备N-酰基次膦酸二酯，将式（IMAGE）的甲基 - （3-氧代丙基）次膦酸酯在氢气存在下，在偶极非质子传递溶剂中与羧酸酰胺和一氧化碳反应，钴化合物作为催化剂，其中基团R'是烷基或芳基或芳烷基。

6. 发明授权

US5166452A Process for inhibiting and destroying peroxides in dialkyl ethers 失效
标题翻译：在二氯乙烷中抑制和破坏过氧化物的方法
公开(公告)号：US5166452A
公开(公告)日：1992-11-24
申请号：US756341
申请日：1991-09-06
申请人： Reinhard Gradl , Heinz Erpenbach , Norbert Weferling , Erhard Jagers
发明人： Reinhard Gradl , Heinz Erpenbach , Norbert Weferling , Erhard Jagers
IPC分类号： C07C41/44 , C07C41/46 , C07C43/04
CPC分类号： C07C41/46
摘要： A process for inhibiting and destroying peroxides in dialkyl ethers having the general formula R.sub.1 OR.sub.2 in which R.sub.1 and R.sub.2 are alkyl groups having 1 to 6 carbon atoms, which comprises adding, as inhibitor, a quaternary alkyl iodide of the general formula[CH.sub.3 alk.sub.3 P]Ito the dialkyl ethers.
摘要翻译：一种用于抑制和破坏具有通式R1OR2的二烷基醚中的过氧化物的方法，其中R 1和R 2是具有1至6个碳原子的烷基，其包括将作为抑制剂的通式[CH 3 Cl 3 P] I的季烷基碘加入到二烷基醚。

7. 发明授权

US4898966A Process for the preparation of phenylalanine n-propyl ester hydrochloride 失效
标题翻译：苯丙氨酸正丙酯盐酸盐的制备方法
公开(公告)号：US4898966A
公开(公告)日：1990-02-06
申请号：US256052
申请日：1988-10-11
申请人： Heinz Erpenbach , Klaus Gehrmann , Peter Horstermann , Erhard Jagers , Georg Kohl
发明人： Heinz Erpenbach , Klaus Gehrmann , Peter Horstermann , Erhard Jagers , Georg Kohl
IPC分类号： C07C229/36
CPC分类号： C07C227/18
摘要： In order to prepare phenylalanine n-propyl ester hydrochloride, phenylalanine hydrochloride is reacted with n-propanol in the molar ration 1: (5 to 20) at temperatures from 80.degree. to 110.degree. C., preferably 85.degree. to 105.degree. C., at pressures from 0.1 to 1.5 bar in the presence of 0.1 to 0.75 mole of HCl/mole of phenylalanine hydrochloride as catalyst and in the presence of water entrainer, a concentration of water entrainer of 20 to 50% by weight being maintained in the reaction mixture.
摘要翻译：为了制备苯丙氨酸正丙酯盐酸盐，将苯丙氨酸盐酸盐与摩尔比1：（5〜20）的正丙醇在80〜110℃，优选85〜105℃反应，在0.1至0.75摩尔HCl /摩尔苯丙氨酸盐酸盐作为催化剂的存在下，在0.1至1.5巴的压力下，在水夹带剂的存在下，在反应混合物中保持20至50重量％的水夹带剂浓度。

8. 发明授权

US5380929A Process for the preparation of acetic acid and acetic anhydride 失效
标题翻译：乙酸和乙酸酐的制备方法
公开(公告)号：US5380929A
公开(公告)日：1995-01-10
申请号：US236669
申请日：1994-05-02
申请人： Heinz Erpenbach , Klaus Gehrmann , Erhard Jagers , Georg Kohl
发明人： Heinz Erpenbach , Klaus Gehrmann , Erhard Jagers , Georg Kohl
IPC分类号： B01J31/20 , C07B61/00 , C07C51/12 , C07C51/56 , C07C53/08 , C07C53/12
CPC分类号： C07C51/12 , C07C51/56
摘要： To prepare acetic acid and acetic anhydride, methanol and methyl acetate are reacted under anhydrous conditions with carbon monoxide in the presence of a catalyst system containing carbonyl complexes of group VIII noble metals, methyl iodide, an alkali metal acetate or iodide, or quaternary organophosphonium or organoammonium acetate or iodide, The hot carbonylation mixture is decompressed, the evaporated components are fed to a first distillation zone, and the catalyst solution which remains is fed back to the reaction zone. In the first distillation zone, the volatile carbonylation products are subjected to fractional distillation; the low-boiling methyl iodide and methyl acetate pass back into the reaction zone, and the bottom product produced is a mixture of acetic acid and acetic anhydride, which is split into the pure components in a second distillation zone and a third distillation zone.
摘要翻译：为了制备乙酸和乙酸酐，在无水条件下，甲醇和乙酸甲酯在含有VIII族贵金属，甲基碘，碱金属乙酸酯或碘化物的羰基络合物或季有机鏻的催化剂体系存在下与一氧化碳反应，或乙酸有机铵或碘化物。将热羰基化混合物减压，将蒸发的组分进料至第一蒸馏区，将剩余的催化剂溶液反馈回反应区。在第一蒸馏区中，将挥发性羰基化产物进行分馏; 低沸点甲基碘和乙酸甲酯回到反应区，产生的底部产物是乙酸和乙酸酐的混合物，其在第二蒸馏区和第三蒸馏区被分成纯组分。

9. 发明授权

US4497747A Process for making acetic anhydride 失效
标题翻译：制备乙酸酐的方法
公开(公告)号：US4497747A
公开(公告)日：1985-02-05
申请号：US515283
申请日：1983-07-19
申请人： Wilhelm Vogt , Hermann Glaser , Erhard Jagers
发明人： Wilhelm Vogt , Hermann Glaser , Erhard Jagers
IPC分类号： C07C53/12 , B01J31/00 , C07B61/00 , C07C51/00 , C07C51/54 , C07C51/56 , C07C67/00
CPC分类号： C07C51/54 , C07C51/56
摘要： The disclosure relates to a process for making acetic anhydride by reacting methyl acetate and/or dimethylether with carbon monoxide, if desired in admixture with up to 20 volume % hydrogen, under practically anhydrous conditions at temperatures of 120.degree. to 270.degree. C., under pressures of 1 to 500 bars in the presence of a catalyst system containing nickel or a nickel compound, an organic iodine or bromine compound as well as a tertiary or quaternary organic phosphorus compound. More particularly, a catalyst system containing a titanium or zirconium compound as an additional constituent is used.
摘要翻译：本公开内容涉及通过使乙酸酐和/或二甲醚与一氧化碳反应制备乙酸酐的方法，如果需要，在实际无水条件下，在120〜270℃的温度下，在约20体积％的氢气的混合下，在含镍或镍化合物，有机碘或溴化合物以及叔或季有机磷化合物的催化剂体系存在下，压力为1至500巴。更具体地，使用含有钛或锆化合物作为附加成分的催化剂体系。

10. 发明授权

US4529560A Process for making acetic anhydride 失效
标题翻译：制备乙酸酐的方法
公开(公告)号：US4529560A
公开(公告)日：1985-07-16
申请号：US515284
申请日：1983-07-19
申请人： Wilhelm Vogt , Erhard Jagers , Hermann Glaser
发明人： Wilhelm Vogt , Erhard Jagers , Hermann Glaser
IPC分类号： C07C53/12 , B01J31/00 , C07B61/00 , C07C51/00 , C07C51/56 , C07C67/00 , C07C51/54
CPC分类号： C07C51/56
摘要： The disclosure relates to a process for making acetic anhydride by reacting methyl acetate and/or dimethylether with carbon monoxide, which may be used in admixture with up to 30 volume % hydrogen, under practically anhydrous conditions at temperatures of 390.degree. to 540.degree. K., under pressures of 1 to 300 bars in the presence of a catalyst system containing nickel or nickel compounds, iodine and/or its compounds as well as a tertiary or quaternary organic nitrogen, phosphorus, arsenic or antimony compound. More particularly a catalyst system is used which contains vanadium or niobium or a compound thereof as an additional constituent.
摘要翻译：本公开涉及通过使乙酸甲酯和/或二甲醚与一氧化碳反应制备乙酸酐的方法，其可以在几乎无水条件下在390°至540°K的温度下与最多30体积％的氢混合使用。在含有镍或镍化合物的催化剂体系，碘和/或其化合物以及叔或季有机氮，磷，砷或锑化合物的存在下，在1至300巴的压力下进行。更具体地，使用含有钒或铌或其化合物作为附加成分的催化剂体系。

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