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

US5002914A Process for purifying and recovering the contaminated catalyst solution arising in the carbonylation of methanol and/or methyl acetate and/or dimethyl ether 失效
标题翻译：用于纯化和回收在甲醇和/或乙酸甲酯和/或二甲醚的羰基化中产生的污染的催化剂溶液的方法
公开(公告)号：US5002914A
公开(公告)日：1991-03-26
申请号：US491352
申请日：1990-03-09
申请人： Heinz Erpenbach , Winfried Lork , Norbert Weferling , Peter Prinz
发明人： Heinz Erpenbach , Winfried Lork , Norbert Weferling , Peter Prinz
IPC分类号： B01J38/00 , B01J31/40 , C07B61/00 , C07C27/00 , C07C51/12 , C07C51/42 , C07C51/48 , C07C51/56 , C07C51/573 , C07C53/08 , C07C53/12 , C07C67/36 , C07C67/37 , C07C67/48 , C07C69/16
CPC分类号： C07C51/56 , C07C51/12 , C07C51/42 , C07C51/48 , C07C51/573 , C07C67/48 , Y02P20/584
摘要： A process for purifying and recovering the contaminated catalyst solution arising from the carbonylation of methanol, methyl acetate and/or dimethyl ether. The solution contains carbonyl complexes of rhodium, quaternary organophosphorus compounds as organic promoters, undistillable organic impurities, and acetic acid, acetic anhydride and ethylidene diacetate. The carbonyl complex of rhodium together with acetic acid, acetic anhydride and ethylidene diacetate are extracted from the contaminated catalyst solution by using a tri-C.sub.3 - to C.sub.8 -alkylphosphine. The trialkylphosphine phase is separated from the promoter phase and is separated into the volatile constituents acetic acid, acetic anhydride and ethylidene diacetate as well as trialkylphosphine. The rhodium carbonyl complex remaining as the residue and the recovered trialkylphosphine is used for further extraction. The contaminated promoter phase is freed of the organic impurities by extraction with dialkyl ethers, carboxylic acid esters or hydrocarbons and, after the extractant phase has been separated off, is recombined with the recovered acetic acid/acetic anhydride and ethylidene diacetate mixture and with the rhodium carbonyl complex and recycled to the carbonylation reactor. The impurities remaining as the residue from a distillation of the extractant phase which has been separated off are removed from the system.
摘要翻译：一种纯化和回收由甲醇，乙酸甲酯和/或二甲醚羰基化产生的污染的催化剂溶液的方法。该溶液含有铑羰基络合物，季有机磷化合物作为有机促进剂，不可渗透的有机杂质，以及乙酸，乙酸酐和亚乙基二乙酸酯。通过使用三-C 3 -C 8烷基膦，从污染的催化剂溶液中提取铑与乙酸，乙酸酐和亚乙基二乙酸酯的羰基络合物。将三烷基膦相与助催化剂相分离，并分离成挥发性成分乙酸，乙酸酐和亚乙基二乙酸酯以及三烷基膦。剩余的作为残留物的铑羰基络合物和回收的三烷基膦用于进一步萃取。被污染的促进剂相通过用二烷基醚，羧酸酯或烃萃取除去有机杂质，并且在萃取相分离后，与回收的乙酸/乙酸酐和亚乙基二乙酸酯混合物与铑重组羰基络合物并循环到羰基化反应器中。从分离出的萃取相的蒸馏中残留的杂质作为残留物从体系中除去。

2. 发明授权

US4444624A Process for separating acetone from carbonylation mixtures 失效
标题翻译：从羰基化混合物中分离丙酮的方法
公开(公告)号：US4444624A
公开(公告)日：1984-04-24
申请号：US412225
申请日：1982-08-27
申请人： Heinz Erpenbach , Klaus Gehrmann , Winfried Lork , Peter Prinz
发明人： Heinz Erpenbach , Klaus Gehrmann , Winfried Lork , Peter Prinz
IPC分类号： C07C45/00 , C07C45/49 , C07C45/78 , C07C45/82 , C07C45/83 , C07C49/08 , C07C67/00 , B01D3/40
CPC分类号： C07C45/82 , C07C45/49 , C07C45/83
摘要： The disclosure relates to a process for separating acetone from reaction mixtures originating from the reaction of methyl acetate and/or dimethylether with carbon monoxide and optionally hydrogen in the presence of a catalyst system consisting of carbonyl complexes of noble metals of group VIII of the Periodic System of the elements, acetic acid, an organophosphorus or organonitrogen compound, methyl iodide and optionally carbonyl-yielding compounds of common metals. To this end, the disclosure provides for the reaction mixture containing acetic anhydride, acetic acid, ethylidene diacetate, methyl iodide, acetone and methyl acetate which is distilled off from the catalyst solution, or just its low boiler fraction consisting of methyl acetate, methyl iodide and acetone to be subjected wholly or partially to an extractive distillation with acetic acid and for pure methyl iodide to be distilled off; for an acetone/methyl acetate mixture to be distilled off from the acetic acid extract; for this mixture to be separated in known fashion and for the acetic acid extractant to be recycled into the extraction stage, if desired after separation of the final reaction products comprised of acetic anhydride; ethylidene diacetate and acetic acid.
摘要翻译：本公开内容涉及在由周期性系统VIII族的贵金属的羰基络合物组成的催化剂体系的存在下，从丙酸甲酯和/或二甲醚与一氧化碳和任选的氢气反应的反应混合物中分离丙酮的方法的元素，乙酸，有机磷或有机氮化合物，甲基碘和任选的产生羰基的常见金属化合物。为此，本公开内容提供了从催化剂溶液中蒸馏掉的乙酸酐，乙酸，亚乙基二乙酸酯，甲基碘，丙酮和乙酸甲酯的反应混合物，或仅仅是其由乙酸甲酯，甲基碘和丙酮完全或部分地进行与乙酸的萃取蒸馏，并将纯甲基碘蒸馏出; 对于从乙酸提取物中蒸出的丙酮/乙酸甲酯混合物; 为了将该混合物以已知方式分离，并且乙酸萃取剂再循环到萃取阶段，如果需要，在分离由乙酸酐组成的最终反应产物之后; 亚乙基二乙酸酯和乙酸。

3. 发明授权

US4556644A Process for purifying and recovering contaminated catalyst solution obtained in the carbonylation of methyl acetate and/or dimethylether 失效
标题翻译：用于纯化和回收在乙酸甲酯和/或二甲醚的羰基化中获得的污染的催化剂溶液的方法
公开(公告)号：US4556644A
公开(公告)日：1985-12-03
申请号：US405070
申请日：1982-08-04
申请人： Heinz Erpenbach , Klaus Gehrmann , Winfried Lork , Peter Prinz
发明人： Heinz Erpenbach , Klaus Gehrmann , Winfried Lork , Peter Prinz
IPC分类号： C07C67/37 , B01J31/40 , B01J38/00 , C07C27/00 , C07C51/00 , C07C51/12 , C07C51/48 , C07C51/573 , C07C53/08 , C07C53/12 , C07C67/00 , C07C69/16 , C07C51/54 , C07C51/56
CPC分类号： B01J31/0268 , B01J31/0239 , B01J31/20 , B01J31/4038 , B01J31/4046 , C07C51/48 , C07C51/573 , C07C67/36 , C07C67/37 , C07C67/54 , B01J2231/34 , B01J2531/82 , B01J2531/822 , B01J2531/824 , Y02P20/584
摘要： The disclosure relates to a process for purifying and recovering a contaminated catalyst solution which is obtained in the carbonylation of methyl acetate and/or dimethylether, the catalyst solution containing carbonyl complexes of noble metals of group VIII of the Periodic System of the elements, quaternary heterocyclic aromatic nitrogen compounds or quaternary organophosphorus compounds as organic promoters, and optionally compounds of carbonyl-yielding common metals as inorganic promoters, undistillable organic contaminants as well as acetic acid, acetic anhydride and ethylidene diacetate. To this end, the disclosure provides for the catalyst solution to be distillatively freed from its volatile constituents and for the remaining solid distillation residue to be freed from the organic contaminants by extraction with aliphatic ethers; and for the remaining undissolved mixture of noble metal/carbonyl-complex, organic and optionally inorganic promoters to be filtered off and recycled into the carbonylation reaction.
摘要翻译：本公开涉及一种净化和回收在乙酸甲酯和/或二甲醚的羰基化中获得的污染的催化剂溶液的方法，所述催化剂溶液含有元素周期系的VIII族贵金属的羰基络合物，四元杂环芳族氮化合物或季有机磷化合物作为有机促进剂，以及任选的产生羰基的常见金属作为无机助催化剂，不可挥发的有机污染物以及乙酸，乙酸酐和亚乙基二乙酸酯的化合物。为此，本公开内容提供了催化剂溶液从其挥发性成分中蒸馏除去，并且剩余的固体蒸馏残余物通过用脂族醚萃取除去有机污染物; 并且对于剩余的未溶解的贵金属/羰基络合物的混合物，有机和任选的无机助催化剂被滤出并再循环到羰基化反应中。

4. 发明授权

US4440570A Process for purifying and recovering contaminated catalyst solution obtained in the carbonylation of methyl acetate and/or dimethylether 失效
标题翻译：用于纯化和回收在乙酸甲酯和/或二甲醚的羰基化中获得的污染的催化剂溶液的方法
公开(公告)号：US4440570A
公开(公告)日：1984-04-03
申请号：US402961
申请日：1982-07-29
申请人： Heinz Erpenbach , Klaus Gehrmann , Winfried Lork , Peter Prinz
发明人： Heinz Erpenbach , Klaus Gehrmann , Winfried Lork , Peter Prinz
IPC分类号： C07C67/37 , B01J31/40 , B01J38/00 , C07B61/00 , C07C27/00 , C07C51/00 , C07C51/12 , C07C51/42 , C07C51/573 , C07C53/08 , C07C53/12 , C07C67/00 , C07C69/16 , C22B11/00 , C01G55/00 , C07D213/06 , C07F9/54
CPC分类号： B01J31/4046 , B01J31/0239 , B01J31/0268 , B01J31/20 , B01J31/4038 , B01J31/4092 , C07C51/42 , C07C51/573 , B01J2231/34 , B01J2531/82 , B01J2531/822 , B01J2531/824 , Y02P20/584
摘要： The disclosure relates to a process for purifying and recovering a contaminated catalyst solution which is obtained in the carbonylation of methyl acetate and/or dimethylether, the catalyst solution containing carbonyl complexes of noble metals of group VIII of the Periodic System of the elements, quaternary heterocyclic aromatic nitrogen compounds or quaternary organophosphorus compounds as organic promoters, undistillable organic contaminants as well as acetic acid, acetic anhydride and ethylidene diacetate. To this end, the disclosure provides for the catalyst solution to be distillatively freed from its volatile constituents and for the remaining solid distillation residue to be water-treated, the noble metal/carbonyl-complex being precipitated together with the organic contaminants and the organic promoter becoming dissolved; for the precipitated and contaminated noble metal/carbonyl-complex to be removed by filtration and for the noble metal to be recovered terefrom in known fashion; for the organic promoter to be recovered by evaporating the water or extracting it with halogenated hydrocarbons and for these latter to be evaporated.
摘要翻译：本公开涉及一种净化和回收在乙酸甲酯和/或二甲醚的羰基化中获得的污染的催化剂溶液的方法，所述催化剂溶液含有元素周期系的VIII族贵金属的羰基络合物，四元杂环芳族氮化合物或季有机磷化合物作为有机促进剂，不可否认的有机污染物以及乙酸，乙酸酐和亚乙基二乙酸酯。为此，本公开内容提供催化剂溶液可蒸馏除去其挥发性成分，并且剩余的固体蒸馏残余物被水处理，贵金属/羰基络合物与有机污染物和有机促进剂一起沉淀变得溶解通过过滤除去沉淀和污染的贵金属/羰基络合物，以及以已知方式回收的贵金属; 通过蒸发水或用卤代烃提取有机助催化剂并使其后者被蒸发而回收。

5. 发明授权

US4557760A Process for recovering noble metals belonging to group VIII of the Periodic System of the elements from a contaminated catalyst solution originating from the carbonylation of methyl acetate and/or dimethylether 失效
标题翻译：从源于乙酸甲酯和/或二甲醚的羰基化的污染的催化剂溶液中回收属于元素周期系第VIII族的贵金属的方法
公开(公告)号：US4557760A
公开(公告)日：1985-12-10
申请号：US614480
申请日：1984-05-29
申请人： Heinz Erpenbach , Klaus Gehrmann , Winfried Lork , Peter Prinz
发明人： Heinz Erpenbach , Klaus Gehrmann , Winfried Lork , Peter Prinz
IPC分类号： C07C27/00 , B01J31/40 , C01G55/00 , C07C21/00 , C07C51/12 , C07C51/42 , C07C51/54 , C07C67/00 , C22B3/16 , C22B3/26 , C22B5/20 , C22B11/00
CPC分类号： B01J31/4046 , B01J31/0239 , B01J31/0268 , B01J31/04 , B01J31/20 , B01J31/26 , B01J31/4038 , C22B11/04 , C22B3/0018 , C22B5/20 , B01J2231/34 , B01J2531/82 , B01J2531/822 , B01J31/0201 , Y02P10/234
摘要： In this process for recovering noble metals of group VIII from a contaminated catalyst solution originating from the carbonylation of methyl acetate and/or dimethylether (the catalyst solution containing carbonyl complexes of these noble metals, organic or inorganic promoters, undistillable organic contaminants as well as volatiles) the volatiles are distillatively removed from the catalyst solution and the remaining distillation residue is water-treated, whereby the noble metal/carbonyl-complex is precipitated together with the organic contaminants and is separated from the aqueous phase, while the promotor is dissolved and recovered in conventional manner. The noble metals are then set free in elemental form by subjecting the noble metal/carbonyl-complex separated and contaminated with organic polymers at temperatures of 150.degree. to 300.degree. C. to treatment with an ethyleneglycoldialkylether solvent of the formula R(--OCH.sub.2 --CH.sub.2).sub.n --OR, in which n stands for a number of from 1 to 4 and R stands for identical or different alkyl groups having from 1 to 6 carbon atoms. The noble metal can then be recovered by filtration, and the solvent can be freed of organic contaminants by distillation.
摘要翻译：在用于从源自乙酸甲酯和/或二甲醚的羰基化的污染的催化剂溶液（含有这些贵金属的羰基络合物的催化剂溶液，有机或无机促进剂，不可挥发的有机污染物以及挥发物）中回收第VIII族的贵金属的方法中）将挥发物从催化剂溶液中蒸馏除去，剩余的蒸馏残余物进行水处理，由此贵金属/羰基络合物与有机污染物一起沉淀并与水相分离，同时促进剂被溶解和回收以常规方式。然后通过使贵金属/羰基络合物在150℃至300℃的温度下用有机聚合物分离和污染来将贵金属自由化，以用式R（-OCH 2 -CH 2）的乙二醇缩酮基醚溶剂）n-OR，其中n表示1至4的数，R表示具有1至6个碳原子的相同或不同的烷基。然后可以通过过滤回收贵金属，并且溶剂可以通过蒸馏而除去有机污染物。

6. 发明授权

US4414160A Process for making carboxylic acid halides 失效
标题翻译：制备羧酸卤化物的方法
公开(公告)号：US4414160A
公开(公告)日：1983-11-08
申请号：US301984
申请日：1981-09-14
申请人： Heinz Erpenbach , Klaus Gehrmann , Winfried Lork , Peter Prinz
发明人： Heinz Erpenbach , Klaus Gehrmann , Winfried Lork , Peter Prinz
IPC分类号： C07C53/38 , C07C51/58
CPC分类号： C07C51/58
摘要： The invention relates to the manufacture of carboxylic acid halides. To this end, an alkyl halide having from 1 to 6 carbon atoms or an aryl halide is reacted with carbon monoxide under practically anhydrous conditions at temperatures of 350 to 575 K. and under pressures of 1 to 300 bars in the presence of a catalyst system containing at least one of the noble metals selected from rhodium, palladium, iridium or their compounds, iodine and/or its compounds, methyl trialkyl phosphonium iodide and/or methyl triaryl phosphonium iodide, and optionally trialkyl phosphine oxide or triaryl phosphine oxide as well as an inert organic solvent. More specifically, the reaction mixture is admixed with 0.02 to 0.75 mol of hydrogen per mol of carbon monoxide.
摘要翻译：本发明涉及羧酸卤化物的制造。为此，将具有1至6个碳原子的烷基卤或芳基卤化物在几乎无水条件下在350至575K的温度和1至300巴的压力下，在催化剂体系存在下与一氧化碳反应含有选自铑，钯，铱或它们的化合物中的至少一种贵金属，碘和/或其化合物，碘化甲基三烷基碘和/或碘化三甲基三碘化鏻，和任选的三烷基氧化膦或三芳基氧化膦以及惰性有机溶剂。更具体地，将反应混合物与每摩尔一氧化碳0.02至0.75摩尔的氢气混合。

7. 发明授权

US4664753A Process for separating iodine and its compounds from the carbonylation products obtained by subjecting dimethylether, methyl acetate or methanol to a carbonylation reaction 失效
标题翻译：通过使二甲醚，乙酸甲酯或甲醇进行羰基化反应得到的羰基化产物中分离出碘及其化合物的方法
公开(公告)号：US4664753A
公开(公告)日：1987-05-12
申请号：US637860
申请日：1984-08-06
申请人： Heinz Erpenbach , Klaus Gehrmann , Winfried Lork , Peter Prinz
发明人： Heinz Erpenbach , Klaus Gehrmann , Winfried Lork , Peter Prinz
IPC分类号： C07C69/16 , C07C51/00 , C07C51/44 , C07C51/487 , C07C53/08 , C07C53/12 , C07C67/00 , C07C67/54 , C07C51/573
CPC分类号： C07C51/487 , C07C51/44 , C07C67/60
摘要： The disclosure relates to a process for separating iodine and its compounds from the carbonlyation products acetic acid, acetic anhydride or ethylidene diacetate obtained by subjecting dimethylether, methyl acetate or methanol to a carbonylation reaction. For reducing the quantity of total iodine contaminating the carbonlyation products to less than 20 ppb iodine, the disclosure provides for the carbonylation products to be treated at temperatures of 20.degree. to 250.degree. C. with an alkyl or aryl phosphine or a heterocyclic aromatic nitrogen compound and at least one of the metals copper, silver, zinc or cadmium or their compounds and to be distillatively separated from the iodine thereby fixed in non-volatile form.
摘要翻译：本公开内容涉及通过使二甲醚，乙酸甲酯或甲醇进行羰基化反应而获得的将其及其化合物与碳酸化产物乙酸，乙酸酐或亚乙基二乙酸酯分离的方法。为了将污染碳酸化产物的总碘的量减少到低于20ppb的碘，本公开提供了在20℃至250℃的温度下用烷基或芳基膦或杂环芳族氮化合物处理的羰基化产物和至少一种金属铜，银，锌或镉或其化合物，并与碘蒸馏分离，从而固定成非挥发性形式。

8. 发明授权

US4543217A Process for making carboxylic acid halides 失效
标题翻译：制备羧酸卤化物的方法
公开(公告)号：US4543217A
公开(公告)日：1985-09-24
申请号：US561805
申请日：1983-12-15
申请人： Heinz Erpenbach , Klaus Gehrmann , Winfried Lork , Peter Prinz
发明人： Heinz Erpenbach , Klaus Gehrmann , Winfried Lork , Peter Prinz
IPC分类号： B01J31/28 , C07B61/00 , C07C51/58 , C07C53/40 , C07C53/42 , C07C57/72
CPC分类号： C07C51/58
摘要： The disclosure relates to a process for making carboxylic acid halides by reacting an alkyl halide having 1 to 6 carbon atoms or aryl halide with carbon monoxide, optionally in admixture with up to 30 volume % hydrogen, under practically anhydrous conditions at temperatures of 350 to 575 K under pressures of 1 to 300 bars in the presence of a catalyst system containing at least one noble metal belonging to group VIII of the Periodic System of the elements or its compounds, iodine and/or its compounds and optionally an inert organic solvent. To this end, the disclosure provides for use to be made of a catalyst system which additionally contains a compound of the elements belonging to groups I to III of the Periodic System, and acetic acid.
摘要翻译：本公开内容涉及通过使具有1至6个碳原子的烷基卤或芳基卤化物与一氧化碳，任选地与至多30体积％的氢混合，在几乎无水条件下在350至575℃的温度下反应来制备羧酸卤化物的方法在含有至少一种属于元素或其化合物的周期体系的VIII族的贵金属的催化剂体系存在下，在1至300巴的压力下，碘和/或其化合物和任选的惰性有机溶剂。为此，本公开提供了使用另外含有属于周期系统的第I至III族的元素的化合物和乙酸的催化剂体系。

9. 发明授权

US4985383A Process for removing metallic corrosion products from a contaminated catalyst solution produced on carbonylation of methanol and/or methyl acetate and/or dimethyl ether 失效
标题翻译：从甲醇和/或乙酸甲酯和/或二甲醚羰基化产生的污染催化剂溶液中除去金属腐蚀产物的方法
公开(公告)号：US4985383A
公开(公告)日：1991-01-15
申请号：US470945
申请日：1990-01-26
申请人： Heinz Erpenbach , Winfried Lork , Andreas Seidel , Peter Prinz
发明人： Heinz Erpenbach , Winfried Lork , Andreas Seidel , Peter Prinz
IPC分类号： B01J38/00 , B01J31/40 , C07B61/00 , C07C27/00 , C07C51/12 , C07C51/373 , C07C51/42 , C07C51/56 , C07C51/573 , C07C53/08 , C07C53/12 , C07C67/36 , C07C67/37 , C07C69/16
CPC分类号： B01J31/0268 , B01J31/20 , B01J31/4038 , B01J31/4046 , C07C51/373 , C07C51/42 , B01J2231/34 , B01J2531/82 , B01J2531/822 , Y02P20/584
摘要： In a process for removing the metallic corrosion products from a contaminated catalyst solution produced on carbonylation of methanol and/or methyl acetate and/or dimethyl ether and containing carbonyl complexes of noble metals from group VIII of the Periodic Table of the elements, quaternary organo-phosphorus compounds as organic promoters, metallic corrosion products and acetic acid, acetic anhydride, ethylidene diacetate and, in some cases, undistillable organic compounds, the catalyst solution is treated with water, the noble metal carbonyl complex and the undistillable organic compounds, if present, being precipitated, while the organic promoter and the metallic corrosion products remain in solution; the aqueous phase is separated from the precipitated noble metal carbonyl complex and the organic promoter is extracted from the aqueous phase using C.sub.4 -C.sub.8 -alkanols, the promoter is recovered by evaporating the extractant, the promoter is recombined with the precipitated nobel metal carbonyl complex and with the undistillable organic compounds, if present, and the purified catalyst solution is recycled into the process after addition of acetic acid and/or acetic anhydride; finally, the aqueous phase with the metallic corrosion products is purged.
摘要翻译：在从甲醇和/或乙酸甲酯和/或二甲醚羰基化产生的污染的催化剂溶液中除去金属腐蚀产物并含有元素周期表第VIII族贵金属的羰基络合物的方法中，磷化合物作为有机促进剂，金属腐蚀产物和乙酸，乙酸酐，亚乙基二乙酸酯，在一些情况下是不挥发的有机化合物，催化剂溶液用水，贵金属羰基络合物和不可否认的有机化合物（如果存在）同时有机促进剂和金属腐蚀产物残留在溶液中; 将水相与沉淀的贵金属羰基络合物分离，并使用C 4 -C 8 - 链烷醇从水相中萃取有机促进剂，通过蒸发萃取剂回收促进剂，将促进剂与沉淀的诺贝尔金属羰基络合物和如果存在的话，有无化学有机化合物，并且在加入乙酸和/或乙酸酐之后将纯化的催化剂溶液再循环到该方法中; 最后，清洗含金属腐蚀产物的水相。

10. 发明授权

US4629711A Process for purifying and recovering contaminated catalyst solution obtained in the carbonylation of methyl acetate and/or dimethylether 失效
标题翻译：用于纯化和回收在乙酸甲酯和/或二甲醚的羰基化中获得的污染的催化剂溶液的方法
公开(公告)号：US4629711A
公开(公告)日：1986-12-16
申请号：US852222
申请日：1986-04-15
申请人： Heinz Erpenbach , Klaus Gehrmann , Winfried Lork , Peter Prinz
发明人： Heinz Erpenbach , Klaus Gehrmann , Winfried Lork , Peter Prinz
IPC分类号： C07C53/12 , B01J31/00 , B01J31/20 , B01J31/40 , B01J38/00 , B01J38/52 , C07B61/00 , C07C27/00 , C07C51/00 , C07C51/48 , C07C51/54 , C07C51/573 , C07C67/00 , C07C67/37 , C07C69/16 , B01J38/68 , C01G55/00 , C07C51/56
CPC分类号： B01J31/0268 , B01J31/0239 , B01J31/20 , B01J31/4046 , B01J38/52 , C07C51/48 , C07C51/573 , B01J2231/34 , B01J2531/822 , Y02P20/584
摘要： Catalyst solution contaminated during the carbonylation of methyl acetate and/or dimethylether, containing carbonyl complexes of rhodium, quaternary heterocyclic aromatic nitrogen compounds or quaternary organophosphorus compounds as organic promoters, undistillable organic contaminants, acetic acid, acetic anhydride and ethylidene diacetate, is purified and recovered. To this end the contaminated catalyst solution is extracted with a dialkylether having from 1-4 carbon atoms and thereby freed from its organic contaminants, acetic acid, acetic anhydride and ethylidene diacetate, and the ether phase is separated from a precipitated promoter-containing catalyst complex; the ether phase is treated with iodine and/or methyl iodide, a further portion of precipitated promoter-containing catalyst complex is separated and united with the purified catalyst complex; the ether phase is distillatively separated into its constituents, recovered dialkylether is used for extraction, and fresh catalyst solution is prepared from the recovered mixture of acetic acid, acetic anhydride and ethylidene diacetate and united purified catalyst complex, and the organic contaminants retained in the residue coming from the ether phase distillation are expelled, and the purified catalyst is distillatively freed from residual dialkylether.
摘要翻译：将含有铑，四元杂环芳族氮化合物或季有机磷化合物的羰基络合物的乙酸甲酯和/或二甲醚羰基化的催化剂溶液作为有机促进剂，不可渗透的有机污染物，乙酸，乙酸酐和亚乙基二乙酸酯被纯化和回收。为此，将污染的催化剂溶液用具有1-4个碳原子的二烷基醚萃取，从而除去其有机污染物，乙酸，乙酸酐和亚乙基二乙酸酯，并将醚相与沉淀的含促进剂的催化剂络合物 ; 用碘和/或甲基碘处理醚相，将另一部分含沉淀促进剂的催化剂络合物分离并与纯化的催化剂络合物结合; 将醚相蒸馏分离成其成分，回收的二烷基醚用于萃取，从回收的乙酸，乙酸酐和亚乙基二乙酸酯混合物中制备新鲜的催化剂溶液，并将合并的纯化催化剂配合物，残留在残渣中的有机污染物从乙醚相蒸馏得到的馏分被排出，纯化的催化剂蒸馏除去剩余的二烷基醚。

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