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1. 发明授权

US4892971A Process for the preparation of n-acetylphenylalanine 失效
标题翻译：制备正乙酰苯丙氨酸的方法
公开(公告)号：US4892971A
公开(公告)日：1990-01-09
申请号：US257715
申请日：1988-10-14
申请人： Heinz Erpenbach , Klaus Gehrmann , Peter Horstermann
发明人： Heinz Erpenbach , Klaus Gehrmann , Peter Horstermann
IPC分类号： C07C231/00 , B01J23/44 , C07B61/00 , C07C67/00 , C07C231/12 , C07C231/14 , C07C233/47 , C07C237/00
CPC分类号： C07C237/00
摘要： In the process for the preparation of N-acetylphenylalanine by opening the ring of 2-methyl-4-benzylidene-1,3-oxazolin-5-one with water to give 2-acetaminocinnamic acid and subsequently catalytically hydrogenating the latter, both reaction stages are carried out in a mixture of an aliphatic C.sub.3 -ketone to C.sub.10 -ketone or a water-miscible ether and water as the solvent, and the hydrogenation of the 2-acetaminocinnamic acid is carried out at temperatures of 10.degree. to 50.degree. C. and pressures of 1 to 15 bar in the presence of a supported palladium catalyst.
摘要翻译：在通过用水打开2-甲基-4-亚苄基-1,3-恶唑啉-5-酮的环以制备N-乙酰基苯丙氨酸的方法中，得到2-乙酰氨基肉桂酸，随后催化氢化后者，两个反应阶段在脂肪族C 3-酮与C 10 - 酮或水混溶性醚和水作为溶剂的混合物中进行，2-乙酰氨基肉豆蔻酸的氢化在10〜50℃的温度下进行。和在负载的钯催化剂存在下，压力为1至15巴。

2. 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。

3. 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。

4. 发明授权

US4351972A Process for making anhydrous alkyl iodides 失效
标题翻译：制备无水烷基碘化物的方法
公开(公告)号：US4351972A
公开(公告)日：1982-09-28
申请号：US296328
申请日：1981-08-26
申请人： Hans K. Kubbeler , Heinz Erpenbach , Klaus Gehrmann , Klaus Schmitz
发明人： Hans K. Kubbeler , Heinz Erpenbach , Klaus Gehrmann , Klaus Schmitz
IPC分类号： C07C17/00 , B01J31/00 , C07B61/00 , C07C17/093 , C07C17/363 , C07C19/07 , C07C51/00 , C07C51/09 , C07C67/00 , C07C19/02
CPC分类号： C07C17/093
摘要： The invention relates to the production of anhydrous alkyl iodides. To this end, carboxylic acid alkyl esters of the formula R.sup.1 COOR.sup.2, in which R.sup.1 stands for hydrogen or an alkyl or aryl radical having from 1 to 8 carbon atoms and R.sup.2 stands for an alkyl group having from 1 to 4 carbon atoms, are reacted with iodine and hydrogen and optionally with carbon monoxide in the presence of compounds of noble metals comprised of rhodium, iridium, palladium or ruthenium as catalyst, and of a heterocyclic aromatic compound, in which at least one hetero atom is a quaternary nitrogen atom, or of a quaternary organophosphorus compound as a promoter, and optionally also in the presence of a carboxylic acid having from 1 to 8 carbon atoms and/or its anhydrides. The reaction is effected under practically anhydrous conditions at temperatures of from 350 to 420 K. and under a total pressure of up to 30 bars.
摘要翻译：本发明涉及无水烷基碘化物的生产。为此，式R1COOR2的羧酸烷基酯（其中R1代表氢或具有1至8个碳原子的烷基或芳基，R2代表具有1至4个碳原子的烷基）与碘和氢，以及任选地与一氧化碳在由铑，铱，钯或钌作为催化剂组成的贵金属的化合物和杂环芳族化合物存在下，其中至少一个杂原子是季氮原子，或作为促进剂的季有机磷化合物，以及任选地还可以在具有1至8个碳原子的羧酸和/或其酸酐存在下进行。反应在几乎无水条件下在350至420K的温度下进行，总压力高达30巴。

5. 发明授权

US4308175A Carrier-supported catalyst and process for making it 失效
标题翻译：载体催化剂及其制备方法
公开(公告)号：US4308175A
公开(公告)日：1981-12-29
申请号：US93896
申请日：1979-11-13
申请人： Heinz Erpenbach , Klaus Gehrmann , Herbert Joest
发明人： Heinz Erpenbach , Klaus Gehrmann , Herbert Joest
IPC分类号： B01J23/30 , B01J37/02 , C07B61/00 , C07C1/00 , C07C5/333 , C07C5/48 , C07C15/44 , C07C15/46 , C07C67/00 , B01J29/00 , B01J23/16 , C07C2/64 , C07C4/06
CPC分类号： B01J23/30 , C07C5/48
摘要： The invention relates to a carrier-supported catalyst comprising oxides of chromium and tungsten and at least one of the oxides of molybdenum and potassium in the atomic ratio of Cr.sub.1 W.sub.0.1-0.5 Mo.sub.0-0.05 K.sub.0-0.5 on a porous carrier material, and to a process for making it. To this end, the process provides(a) for a dry porous carrier material to be saturated with water up to 40 to 80% of its predetermined saturation value;(b) for the carrier material treated as under (a) to be impregnated in any sequential order, but at least once with an aqueous solution of water-soluble compounds of chromium and, if desired, potassium, and sequentially, but at least once with a separately produced aqueous solution of a water-soluble compound of tungsten and, if desired, molybdenum, the aqueous solutions being used in either case in a quantity which is at most necessary for complete saturation;(c) for the carrier material to be dried after each impregnation over a period of 2 to 20 hours at 350 to 500 K, and(d) for the carrier material to be sintered over a period of 0.5 to 12 hours at 550 to 1000 K, in a stream of air.The carrier-supported catalyst finds use in the production of styrene by subjecting ethylbenzene to oxidative dehydrogenation with molecular oxygen in gas phase.
摘要翻译：本发明涉及一种载体负载型催化剂，其包含铬和钨的氧化物和至少一种以多孔载体材料的Cr1W0.1-0.5Mo0-0.05K0-0.5的原子比的钼和钾的氧化物，并且一个制作它的过程。为此，该方法（a）使干燥的多孔载体材料饱和至多达其预定饱和值的40至80％的水; （b）对于根据（a）处理的载体材料，以任何顺序浸渍，但至少一次用水溶性的铬的水溶液和如果需要的话，钾依次但是至少一次与单独生产的钨水溶性化合物的水溶液，如果需要，钼，水溶液在任一种情况下以完全饱和度最为必要的量使用; （c）在350〜500K下经过2〜20小时的浸渍后的载体材料进行干燥，（d）将载体材料在550〜1000℃下进行0.5〜12小时的烧结 K，在空气流中。载体负载催化剂用于生产苯乙烯，通过使乙苯在气相中用分子氧进行氧化脱氢。

6. 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。

7. 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。

8. 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。

9. 发明授权

US4442304A 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：US4442304A
公开(公告)日：1984-04-10
申请号：US402942
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 , C07C67/36 , C07C51/56
CPC分类号： B01J31/20 , B01J31/0239 , B01J31/0268 , B01J31/4038 , B01J31/4046 , 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 to be freed from the organic contaminants by extraction with aliphatic ethers; for the organic promoter to be recovered by evaporating the water or extracting it with halogenated hydrocarbons and for these latter to be evaporated; and for the purified noble metal/carbonyl-complex and the recovered organic promoter to be 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，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用于通过过滤除去沉淀和污染的贵金属/羰基络合物，并通过用脂族醚萃取除去有机污染物; 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来回收有机促进剂; 并且将纯化的贵金属/羰基络合物和回收的有机促进剂再循环到羰基化反应中。

10. 发明授权

US4352761A Production of acetyl chloride 失效
标题翻译：生产乙酰氯
公开(公告)号：US4352761A
公开(公告)日：1982-10-05
申请号：US256387
申请日：1981-04-22
申请人： Heinz Erpenbach , Klaus Gehrmann , Winfried Lork , Peter Pring
发明人： Heinz Erpenbach , Klaus Gehrmann , Winfried Lork , Peter Pring
IPC分类号： C07C53/40 , B01J23/00 , B01J27/00 , B01J27/132 , B01J27/16 , B01J31/02 , B01J31/18 , C07B61/00 , C07C51/00 , C07C51/58 , C07C67/00
CPC分类号： B01J31/1875 , C07C51/58 , B01J2531/822 , B01J2531/824 , B01J2531/827 , Y02P20/582
摘要： The invention relates to a process for making acetyl chloride by reacting methoxy chloride with carbon monoxide under practically anhydrous conditions, at temperatures of 350.degree. to 575.degree. K, under pressures of 1 to 300 bars, and 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 and optionally trialkylphosphine oxide or triarylphosphine oxide, as well as an inert organic solvent. The invention provides more specifically for the reaction to be effected in the presence of a catalyst system containing n-heptane as the inert solvent and as additional ingredients methyltrialkyl phosphonium iodide and/or methyltriarylphosphonium iodide and at least one compound of chromium, molybdenum or tungsten.
摘要翻译：本发明涉及一种在几乎无水条件下，甲氧基氯与一氧化碳在350〜575℃的温度，1〜300巴的压力下反应制备乙酰氯的方法，在含有选自铑，钯，铱或其化合物中的至少一种贵金属，碘和/或其化合物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。本发明更具体地涉及在含有正庚烷作为惰性溶剂的催化剂体系和作为其它成分的碘化甲基三烷基鏻和/或甲基三芳基碘化鏻和至少一种铬，钼或钨化合物的存在下进行的反应。

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