公开(公告)号：US4143056A

公开(公告)日：1979-03-06

申请号：US853970

申请日：1977-11-21

申请人： S. Erik Pedersen ,  Ming N. Sheng

发明人： S. Erik Pedersen ,  Ming N. Sheng

IPC分类号： C07C51/25 ,  C07D307/60

CPC分类号： C07C51/252

摘要： A lower unsaturated aliphatic hydrocarbon of at least 4 carbon atoms and an oxygen-containing gas react to form maleic anhydride in the presence of a catalyst having the oxides of tungsten, phosphorus, thallium, and vanadium, said catalyst being a phosphotungstic catalyst modified by minor amounts of thallium oxide and vanadium oxide, the sum of the oxides of Tl and V constituting from 1% to 15% of the catalyst, the atom ratio of Tl:V being within a range from about 2:1 to about 8:1 and the overall atomic ratios are such that W:P:Tl:V corresponds to 1:0.1-0.7:0.01-0.16:0.01-0.1. Sometimes from about 3 to about 50 volume percent steam is added to the reactant stream to enhance catalyst stability and selectivity.

公开(公告)号：US4263465A

公开(公告)日：1981-04-21

申请号：US74190

申请日：1979-09-10

申请人： Ming N. Sheng ,  Mary T. Arnold

发明人： Ming N. Sheng ,  Mary T. Arnold

IPC分类号： C10G50/02 ,  C10G69/12 ,  C10M107/02 ,  C07C9/00 ,  C07C2/74

CPC分类号： C10M107/02 ,  C10G50/02 ,  C10G69/126 ,  C10G2400/10 ,  C10M2205/00

摘要： A low viscosity synthetic lubricant is prepared by polymerizing 1-butene to an oligomer containing a number average of about 8 to 18 carbon atoms and copolymerizing the oligomer with an alpha-monoolefin having 8 to 18 carbon atoms to produce a copolymer having an average of about 20 to 40 carbon atoms. Both polymerization reactions are catalyzed by a combination of boron trifluoride and a proton donor promoter. The synthetic lubricant is preferably stripped to remove lower boiling components, such as oligomers having 20 carbon atoms or less, and optionally hydrogenated for improved stability.

摘要翻译： 通过将1-丁烯聚合到含有约8至18个碳原子的数均分子的低聚物并使低聚物与具有8至18个碳原子的α-单烯烃共聚以制备平均约为 20至40个碳原子。 两种聚合反应均由三氟化硼和质子供体启动子的组合催化。 优选汽提合成润滑剂以除去低沸点组分，例如具有20个碳原子或更少碳原子的低聚物，并任选地氢化以提高稳定性。

公开(公告)号：US4260814A

公开(公告)日：1981-04-07

申请号：US59729

申请日：1979-07-23

申请人： Jar-lin Kao ,  Ming N. Sheng

发明人： Jar-lin Kao ,  Ming N. Sheng

IPC分类号： C07C395/00 ,  C07C67/00 ,  C07C69/14 ,  C07C69/24

CPC分类号： C07C395/00 ,  C07C67/00

摘要： A process for the preparation of bromoalkyl esters and vicinal glycol esters which comprises thermally decomposing at temperatures of from 100.degree. C. to 200.degree. C. a bis(2-bromoalkyl)tellurium dicarboxylate compound of the formula ##STR1## wherein at least one R is hydrogen or R is a methyl group and R' is hydrogen or an alkyl group having 1 to 3 carbon atoms in the presence of an aliphatic monocarboxylic acid selected from formic, acetic, propionic or butyric acid employed as solvent and to facilitate solvolysis in the reaction to give in addition to the bromoalkyl ester, the vicinal glycol ester. An inert acetonitrile solvent may be employed alone to give predominately the bromoalkyl ester or an admixture with the acid may be employed. Oxygen is preferably employed with the carboxylic acid solvent to provide an increase in the mole ratio of vicinal glycol ester to the bromoalkyl ester produced.

摘要翻译： 一种制备溴烷基酯和连环二醇酯的方法，其包括在100℃至200℃的温度下分解式（II）的双（2-溴烷基）碲二羧酸酯化合物，其中至少一个R 是氢或R是甲基，R'是氢或具有1至3个碳原子的烷基，在脂肪族单羧酸的存在下，用作溶剂的甲酸，乙酸，丙酸或丁酸，并促进溶剂分解 反应得到除溴代烷基酯，邻位二醇酯外。 可以单独使用惰性乙腈溶剂，主要得到溴烷基酯或与酸的混合物。 优选与羧酸溶剂一起使用氧气以提供邻位二醇酯与所产生的溴代烷基酯的摩尔比的增加。

公开(公告)号：US3983143A

公开(公告)日：1976-09-28

申请号：US521324

申请日：1974-11-06

申请人： Ming N. Sheng ,  John G. Zajacek ,  Thomas N. Baker, III

发明人： Ming N. Sheng ,  John G. Zajacek ,  Thomas N. Baker, III

IPC分类号： C07D301/20

CPC分类号： C07D301/19

摘要： Method for the molybdenum-catalyzed epoxidation of less reactive olefins such as the alpha-olefins and alpha-substituted olefins with the less stable organic hydroperoxides to give good yields of the epoxide by employing a critical amount of a stabilizing agent consisting of a C.sub.3 to C.sub.9 secondary or tertiary monohydric alcohol.

摘要翻译： 用较少反应性烯烃（如α-烯烃和α-取代烯烃）进行钼催化环氧化的方法，其中较不稳定的有机氢过氧化物可通过使用临界量的由C3至C9组成的稳定剂来提供良好的环氧化物产率 仲或叔一元醇。

公开(公告)号：US4247465A

公开(公告)日：1981-01-27

申请号：US68996

申请日：1979-08-23

申请人： Jar-Lin Kao ,  Gregory A. Wheaton ,  Harold Shalit ,  Ming N. Sheng

发明人： Jar-Lin Kao ,  Gregory A. Wheaton ,  Harold Shalit ,  Ming N. Sheng

IPC分类号： B01J27/00 ,  C07B61/00 ,  C07D317/36 ,  C07D317/38

CPC分类号： C07D317/36

摘要： A process for the preparation of a cyclic alkylene carbonate ester which comprises reacting in a liquid phase a cyclic or linear olefin having from 2 to 15 carbon atoms with carbon dioxide at a temperature of from 30.degree. to 160.degree. C., at a total pressure of from 100 to about 2,000 psig and a pH value of between about 4 and 8, in the presence of oxygen or an oxygen-containing gas and a catalytic amount of a mixture of (a) iodine or an iodide of a metal selected from Groups IA, IB, IIA, IIB, VB, VIIB and VIII of the Periodic Table of Elements, (b) a carbonate of a metal selected from Groups IB, IIA, IIB and VIII of the Periodic Table of Elements, (c) a catalytic iron compound and (d) a catalytic soluble cupric salt, and recovering resulting cyclic alkylene carbonate ester.

摘要翻译： 一种制备环状碳酸亚烷基酯的方法，该方法包括在液相中将具有2至15个碳原子的环状或线型烯烃与二氧化碳在30至160℃的温度下，以总压力 为100至约2,000psig，pH值为约4至8，在氧或含氧气体和催化量的（a）碘或选自以下的金属的碘化物的混合物的存在下， IA，IB，IIA，IIB，VB，VIIB和VIII，（b）选自元素周期表IB，IIA，IIB和VIII族的金属的碳酸盐，（c） 铁化合物和（d）催化可溶性铜盐，并回收所得环状碳酸亚烷基酯。

公开(公告)号：US4231937A

公开(公告)日：1980-11-04

申请号：US937294

申请日：1978-08-28

申请人： Jar-lin Kao ,  Ming N. Sheng

发明人： Jar-lin Kao ,  Ming N. Sheng

IPC分类号： C07D317/36 ,  C07D317/38

CPC分类号： C07D317/38 ,  C07D317/36

摘要： A process for the preparation of alkylene carbonates having from 3 to 31 carbon atoms per molecule of the general formula ##STR1## which comprises reacting in the liquid phase the corresponding alkylene iodohydrin having from 2 to 30 carbon atoms per molecule with carbon dioxide in the presence of oxygen or an oxygen-containing gas and an effective amount of a catalytic mixture of(1) an iodide of the metals selected from groups IA, IB, IIA, IIB and VIII of the Periodic Table of Elements and(2) a carbonate of the metals selected from the groups IB, IIA, and IIB of the Periodic Table of Elements,at a temperature of from 30.degree. C. to 120.degree. C., and at a total carbon dioxide and oxygen pressure between about atmospheric and 1400 psig, at a pH value of between 3 and 10.

摘要翻译： 一种制备每分子具有3至31个碳原子的碳酸亚烷基酯的方法，该通式包括在液相中使每分子具有2-30个碳原子的相应亚烷基碘醇与二氧化碳反应， 的氧气或含氧气体和有效量的（1）选自元素周期表的IA，IB，IIA，IIB和VIII族的金属的碘化物的催化混合物和（2）碳酸盐 选自元素周期表IB，IIA和IIB族的金属，温度为30℃至120℃，总二氧化碳和氧气压力约为大气压至1400psig， pH值在3和10之间。

公开(公告)号：US4049724A

公开(公告)日：1977-09-20

申请号：US620436

申请日：1975-10-07

申请人： Ming N. Sheng ,  Walter A. Mameniskis

发明人： Ming N. Sheng ,  Walter A. Mameniskis

IPC分类号： C07D307/89 ,  C11C1/00 ,  C07C29/02

摘要： Method for preparing polyols such as diols and triols by the homogeneous catalytic hydroxylation of an olefinic compound by contacting the olefinic compound with an organic hydroperoxide in an aqueous solution at an initial pH above 8 in the presence of a catalytic amount of a water soluble osmium compound as the catalyst.

摘要翻译： 通过在催化量的水溶性锇化合物的存在下，在初始pH高于8的水溶液中使烯属化合物与有机氢过氧化物接触，通过烯烃化合物的均相催化羟基化制备多元醇如二醇和三醇的方法 作为催化剂。

公开(公告)号：US4237314A

公开(公告)日：1980-12-02

申请号：US73050

申请日：1979-09-06

申请人： Ming N. Sheng ,  Jar-Lin Kao

发明人： Ming N. Sheng ,  Jar-Lin Kao

IPC分类号： C07C51/353 ,  C07C57/30

CPC分类号： C07C51/353

摘要： Phenyl acetic acid is prepared by the reaction of molecular oxygen and the combination of acetic acid and benzene in the presence of a catalytic system featuring both tellurium and halide, the unit atomic ratio of halide to tellurium being within a range from about 3 to about 20, at a temperature within a range from about 100.degree. C. to about 200.degree. C. at a pressure within a range from about 1 to about 15 atmospheres.

摘要翻译： 苯乙酸通过分子氧与乙酸和苯的组合在具有碲和卤化物特征的催化体系的存在下反应制备，卤化物与碲的单位原子比在约3至约20的范围内 在约100℃至约200℃的温度范围内，在约1至约15个大气压的范围内。

公开(公告)号：US4144399A

公开(公告)日：1979-03-13

申请号：US780564

申请日：1977-03-23

申请人： Ming N. Sheng ,  Jar-lin Kao

发明人： Ming N. Sheng ,  Jar-lin Kao

IPC分类号： C07C51/25 ,  C07C409/24 ,  C07C409/38 ,  C07C51/00 ,  C07C57/04

CPC分类号： C07C51/252 ,  C07C407/00

摘要： A process for the preparation of acrylic acid or methacrylic acid by the ruthenium and/or osmium catalyzed conversion of peroxide (peroxy) intermediate compounds, derived from the autoxidation of acrolein or methacrolein, to the corresponding .alpha.,.beta.-unsaturated carboxylic acid, particularly the conversion of permethacrylic acid and methacrolein monopermethacrylate to methacrylic acid.

摘要翻译： 通过钌和/或锇催化转化来自丙烯醛或甲基丙烯醛自氧化的过氧化物（过氧）中间体化合物转化为相应的α，β-不饱和羧酸，特别是用于制备丙烯酸或甲基丙烯酸的方法， 甲基丙烯酸和甲基丙烯醛单甲基丙烯酸酯转化成甲基丙烯酸。

公开(公告)号：US4130633A

公开(公告)日：1978-12-19

申请号：US864172

申请日：1977-12-27

申请人： Edward T. Shawl ,  Ming N. Sheng ,  John G. Zajacek

发明人： Edward T. Shawl ,  Ming N. Sheng ,  John G. Zajacek

IPC分类号： B01J27/30 ,  C01B19/00

CPC分类号： C01B19/004 ,  B01J27/30 ,  C01B19/001 ,  Y02P20/584

摘要： A method for the removal and recovery of selenium from a urethane solution containing selenium compounds, which may be in the form of inorganic selenium and/or organoselenium compounds, which comprises contacting the selenium-containing urethane solution at a suitable temperature with an aqueous hydrogen peroxide solution and recovering the selenium from the resulting selenium compound enriched aqueous phase in a form suitable for reuse in the preparation of urethanes, the deselenized urethane remaining in the hydrocarbon and/or organic phase.

摘要翻译： 一种从含有硒化合物的氨基甲酸酯溶液中去除和回收硒的方法，其可以是无机硒和/或有机硒化合物的形式，其包括在合适的温度下将含硒氨基甲酸酯溶液与过氧化氢水溶液 溶液，并从所生成的硒化合物富集的水相中以适于在制备氨基甲酸酯中再利用的形式回收硒，该脱盐氨基甲酸酯保留在烃和/或有机相中。