公开(公告)号：US4212813A

公开(公告)日：1980-07-15

申请号：US950407

申请日：1978-10-11

申请人： Ryoichi Hasegawa

发明人： Ryoichi Hasegawa

IPC分类号： C07C51/31 ,  C07C205/57 ,  C07B3/00

CPC分类号： C07C205/57 ,  C07C201/12 ,  C07C51/313 ,  C07C51/56 ,  C07D307/92

摘要： Process for producing substituted or unsubstituted naphthalic acids and acid anhydrides thereof by oxidation of corresponding acenaphthenes whose naphthalene nucleus may have one or two substituents from the group consisting of halogens, sulfonic acid groups, sulfonate groups, and nitro. The oxidation is performed at 30.degree.-150.degree. C. using molecular oxygen in the presence of (1) at least one heavy metal compound, such as cobalt acetate or manganese acetate, in an amount of 0.005-0.3 mole per mole of said acenaphthenes or a mixture of heavy metal compounds in that amount and a bromine compound in the range of 5.times.10.sup.-5 to 2.times.10.sup.-1 mole/liter of reaction solution as a catalyst and (2) at least one accelerator selected from the group consisting of lower fatty acid anhydrides, ketones and aldehydes, whereby side reactions such as condensation can be suppressed to a satisfactory extent, thereby leading to an improvement in yield of final product. A subsequent treatment of the oxidation product obtained by this process with peroxides, hypohalogenates, or molecular oxygen results in a higher yield.

摘要翻译： 通过氧化相应的苊的方法制备取代或未取代的萘二甲酸及其酸酐，其萘核可以具有一个或两个来自卤素，磺酸基，磺酸酯基和硝基的取代基。 在（1）至少一种重金属化合物如乙酸钴或乙酸锰存在下，使用分子氧在30-150℃进行氧化，其量为每摩尔所述苊的0.005-0.3摩尔 或这种量的重金属化合物的混合物和作为催化剂的反应溶液的5×10 -5至2×10 -1摩尔/升范围内的溴化合物和（2）至少一种选自低脂肪 酸酐，酮和醛，由此可以将缩合的副反应抑制到令人满意的程度，从而导致最终产物的收率提高。 用过氧化物，次卤酸盐或分子氧随后处理通过该方法获得的氧化产物导致更高的产率。

公开(公告)号：US4203906A

公开(公告)日：1980-05-20

申请号：US922791

申请日：1978-07-07

申请人： Masahiro Takada ,  Hiroyuki Uhara ,  Takahisa Sato

发明人： Masahiro Takada ,  Hiroyuki Uhara ,  Takahisa Sato

IPC分类号： B01J8/06 ,  C07C51/265 ,  C07C51/31 ,  F28F9/22 ,  C07D307/89

CPC分类号： B01J8/06 ,  B01J8/067 ,  C07C51/265 ,  C07C51/313 ,  F28D7/0066 ,  F28D7/16 ,  F28F9/22 ,  B01J2208/00212 ,  B01J2208/00221 ,  B01J2208/00256 ,  B01J2208/025 ,  B01J2219/00777 ,  F28F2009/226

摘要： A process for catalytic vapor phase oxidation which comprises using a fixed-bed shell and tube heat exchange type reactor in which a bundle of a multiplicity of tubes filled with at least one type of oxidizing catalyst are disposed in a shell and these tubes are passed through the apertures formed in at least one perforated shield plate to partition the inside of the shell into at least two heat transfer medium feed zones and in such a manner that each of the tubes passing through the perforated shield plate is not in direct contaction with the shield plate but the outer surface of the tube and the inner surface of the aperture are spaced apart by a distance of between 0.2-5 mm, supplying feed gas to the tubes of the reactor, and conducting exothermic catalytic vapor phase oxidation while controlling the temperatures for the heat transfer medium in each of the zones so that the temperature difference between each of the zones can be maintained between 0.degree.-100.degree. C.

摘要翻译： 一种用于催化气相氧化的方法，其包括使用固定床壳管式热交换型反应器，其中将多个管填充有至少一种类型的氧化催化剂的管束设置在壳中，并且这些管通过 形成在至少一个有孔屏蔽板中的孔以将壳体的内部分隔成至少两个传热介质进料区，并且使得穿过穿孔屏蔽板的每个管不与屏蔽件直接接触 板，但是管的外表面和孔的内表面间隔开0.2-5mm的距离，向反应器的管提供进料气体，并且进行放热催化气相氧化，同时控制温度 每个区域中的传热介质，使得每个区域之间的温度差可以保持在0℃-100℃之间。

公开(公告)号：US4155920A

公开(公告)日：1979-05-22

申请号：US784003

申请日：1977-04-04

申请人： Ernest C. Milberger ,  Eunice K. T. Wong

发明人： Ernest C. Milberger ,  Eunice K. T. Wong

IPC分类号： C07D307/60 ,  B01J23/00 ,  B01J23/28 ,  B01J23/30 ,  B01J23/88 ,  B01J31/00 ,  C07B61/00 ,  C07C51/25 ,  C07C51/31

CPC分类号： B01J23/8876 ,  B01J23/28 ,  B01J23/30 ,  B01J23/887 ,  B01J23/8877 ,  C07C51/25 ,  C07C51/252 ,  C07C51/313 ,  B01J2523/00

摘要： Maleic anhydride is produced by the oxidation of 1,3-butadiene, n-butylenes, crotonaldehyde and furan with molecular oxygen in the vapor phase in the presence of catalytic oxides of antimony, molybdenum, at least one element selected from the group consisting of niobium, zirconium, titanium and tantalum and optionally a reducing agent capable of reducing at least part of the molybdenum in the catalyst to a valence state below +6 selected from the group consisting of hydrazine hydrate, molybdenum, tungsten, magnesium, aluminum, and nickel. This catalyst may optionally contain one or more elements selected from the group consisting of Li, Ag, Ce, Cd, Co, As, Si, Zn, Ge, Bi, Ru, Pt, U, Al and Ni. Especially desirable yields of maleic anhydride are obtained from 1,3-butadiene in the presence of a catalyst wherein molybdenum metal is used as a reducing agent.

摘要翻译： 马来酸酐通过在催化氧化锑，钼，至少一种选自铌的元素的存在下，在汽相中用分子氧氧化1,3-丁二烯，正丁烯，巴豆醛和呋喃来生产。 ，锆，钛和钽以及任选的能够将催化剂中的至少一部分钼还原成低于+6的价态的还原剂，其选自水合肼，钼，钨，镁，铝和镍。 该催化剂可任选地含有选自Li，Ag，Ce，Cd，Co，As，Si，Zn，Ge，Bi，Ru，Pt，U，Al和Ni中的一种或多种元素。 在其中使用钼金属作为还原剂的催化剂存在下，从1,3-丁二烯获得马来酸酐的特别理想的产率。

公开(公告)号：US4097501A

公开(公告)日：1978-06-27

申请号：US687827

申请日：1976-05-19

申请人： Serge R. Dolhyj ,  Ernest C. Milberger ,  Sandra R. Evans

发明人： Serge R. Dolhyj ,  Ernest C. Milberger ,  Sandra R. Evans

IPC分类号： C07D307/60 ,  B01J23/00 ,  B01J23/22 ,  B01J23/28 ,  B01J27/00 ,  B01J27/199 ,  B01J37/02 ,  C07B61/00 ,  C07C51/31

CPC分类号： B01J37/0221 ,  C07C51/313 ,  B01J23/22 ,  B01J23/28 ,  B01J27/199

摘要： Very desirable temperature control and selectivity are obtained in the oxidation of benzene to maleic anhydride using an oxidation catalyst of an essentially inert support of at least 20 microns containing on its outer surface a coating of a catalytically active oxide material or a catalytically active oxide material and an oxide support.

摘要翻译： 在使用至少20微米的基本惰性载体的氧化催化剂将苯氧化成马来酸酐时，获得非常理想的温度控制和选择性，在其外表面上含有催化活性氧化物材料或催化活性氧化物材料的涂层， 氧化物载体。

公开(公告)号：US4076948A

公开(公告)日：1978-02-28

申请号：US766476

申请日：1968-10-10

申请人： Samuel S. Mims

发明人： Samuel S. Mims

IPC分类号： C07C51/31 ,  C07C67/08 ,  C07C67/58 ,  C07C69/34 ,  C07C69/44 ,  C07C69/48

CPC分类号： C07C67/58 ,  C07C51/316 ,  C07C67/08

摘要： Treatment of aqueous nitric acid solutions resulting from the nitric acid oxidation of cyclohexanol and/or cyclohexanone in the presence of metal compound oxidation catalysts for recovery of the valuable components contained therein, which comprises adding an alcohol to the aqueous nitric acid solution to esterify the acids present, contacting the resultant alcoholic mixture with a water-immiscible solvent, separating layers into an aqueous phase and an organic phase, treating the aqueous phase to recover the nitric acid and catalyst components and treating the organic phase to recover the acid derivatives.

摘要翻译： 在金属化合物氧化催化剂存在下处理环己醇和/或环己酮的硝酸氧化产生的硝酸水溶液，用于回收其中所含的有价值组分，其中包括向硝酸水溶液中加入醇以酯化酸 存在，使所得醇混合物与水不混溶的溶剂接触，将层分离成水相和有机相，处理水相以回收硝酸和催化剂组分并处理有机相以回收酸衍生物。

公开(公告)号：US4070379A

公开(公告)日：1978-01-24

申请号：US734577

申请日：1976-10-21

申请人： Jean Henri Camille Ciquier ,  Michel Hyppolite Carfantan

发明人： Jean Henri Camille Ciquier ,  Michel Hyppolite Carfantan

IPC分类号： B01J23/28 ,  B01J27/199 ,  C07C51/31 ,  C07D307/60

CPC分类号： C07C51/313 ,  B01J23/002 ,  B01J23/28 ,  B01J27/199 ,  B01J2523/00

摘要： A process for the manufacture of maleic anhydride by the oxidation of benzene with oxygen in the presence of a catalyst which has been previously activated and which comprises an inert support coated with a catalytically active mass containing by weight 10% to 20% of antimony trioxide, 40% to 70% of vanadium pentoxide, 20% to 50% of molybdenum trioxide, 0.7% to 1.5% of phosphorus pentoxide, 0.9% to 2.0% of sodium oxide and possibly another mineral oxide.

摘要翻译： 一种在预先活化的催化剂存在下用氧气氧化苯并用马来酸酐制备马来酸酐的方法，该催化剂包含涂有催化活性物质的惰性载体，其含有10重量％至20重量％的三氧化锑， 40％至70％的五氧化二钒，20％至50％的三氧化钼，0.7％至1.5％的五氧化二磷，0.9％至2.0％的氧化钠和可能的其他矿物氧化物。

公开(公告)号：US4062873A

公开(公告)日：1977-12-13

申请号：US734706

申请日：1976-10-21

申请人： Jonas P. Harrison

发明人： Jonas P. Harrison

IPC分类号： B01J23/22 ,  B01J27/182 ,  B01J27/198 ,  B01J37/03 ,  C07C51/215 ,  C07C51/25 ,  C07C51/31 ,  C07D307/60

CPC分类号： B01J27/182 ,  B01J23/22 ,  B01J27/198 ,  B01J37/03 ,  C07C51/215 ,  C07C51/25 ,  C07C51/252 ,  C07C51/313

摘要： A process for producing maleic anhydride which comprises partially oxidizing a hydrocarbon feed at a temperature in the range 300.degree.-600.degree. C by contacting said feed and an oxygen-containing gas with a catalyst comprising vanadium, phosphorus and silicon oxides prepared by steps comprising coprecipitating vanadium oxide and silica or a silica precursor. Preferably an organic silicon compound, especially an alkyl orthosilicate, is used to form the silica precipitate. Preferably the organic silicon compound is added so as to coprecipitate both during the reduction of the vanadium from a +5 oxidation state to a 3.5-4.6 oxidation state and also is added or is present so as to precipitate silica or a silica precursor simultaneously with the reaction of phosphoric acid with the reduced vanadium.

摘要翻译： 一种生产马来酸酐的方法，其包括在300-600℃的温度范围内部分地将烃进料氧化，通过使所述进料和含氧气体与包含钒，磷和氧化硅的催化剂接触，所述催化剂包括通过以下步骤制备的：共沉淀 氧化钒和二氧化硅或二氧化硅前体。 优选使用有机硅化合物，特别是原硅酸烷基酯来形成二氧化硅沉淀。 优选地，加入有机硅化合物以便在将钒从+5氧化态还原为3.5-4.6氧化态的同时共沉淀，并且还加入或存在以使二氧化硅或二氧化硅前体与 磷酸与还原钒的反应。

公开(公告)号：US4062872A

公开(公告)日：1977-12-13

申请号：US689248

申请日：1976-05-24

申请人： Sandy Y. Lew ,  Edward F. Conley

发明人： Sandy Y. Lew ,  Edward F. Conley

IPC分类号： B01J23/22 ,  B01J35/06 ,  B01J37/00 ,  C07C51/31 ,  C07D307/89 ,  C07B3/00

CPC分类号： B01J37/0009 ,  B01J23/22 ,  B01J35/06 ,  C07C51/313

摘要： An improved catalyst structure for use in catalytic processes, consisting of a powdered catalyst, carrier, and metal fiber thoroughly mixed to assure a permanent uniform distribution of the metal fiber, the catalyst-metal fiber mixture then pressed into any desired shape for its intended use. The permanent uniform dispersion of metal fibers results in a catalyst structure having increased thermal conductivity and more uniform porosity, the improved heat transfer characteristics increasing selectivity and minimizing temperature gradients in the catalytic structure thereby assuring constant reactor temperature and imparting stability, improved yield and temperature control in highly exothermic and endothermic catalytic reactions.

摘要翻译： 用于催化方法的改进的催化剂结构，由粉末状催化剂，载体和金属纤维组成，充分混合以确保金属纤维的永久均匀分布，然后将催化剂 - 金属纤维混合物压制成任何所需形状用于其预期用途 。 金属纤维的永久均匀分散导致具有增加的导热性和更均匀的孔隙率的催化剂结构，改进的传热特性增加了催化结构中的选择性和最小化温度梯度，从而确保恒定的反应器温度并赋予稳定性，提高的产率和温度控制 在高度放热和吸热催化反应中。

公开(公告)号：US4017521A

公开(公告)日：1977-04-12

申请号：US359294

申请日：1973-05-11

申请人： Ronald A. Schneider

发明人： Ronald A. Schneider

IPC分类号： B01J23/22 ,  B01J23/32 ,  B01J27/198 ,  C07C51/215 ,  C07C51/25 ,  C07C51/265 ,  C07C51/31 ,  C07D307/60

CPC分类号： C07C51/265 ,  B01J23/22 ,  B01J23/32 ,  B01J27/198 ,  C07C51/215 ,  C07C51/25 ,  C07C51/252 ,  C07C51/313

摘要： An improved vanadium-phosphorus mixed oxide is prepared by a unique method employing an organic medium. The substantial intrinsic surface area and the microcrystalline structure of the new oxide result in advantageous activity and selectivity effects in the catalysed vapor phase oxidation of n-butane to maleic anhydride. These oxides are also useful for the production of acid anhydrides from suitable hydrocarbon feeds.

摘要翻译： 通过使用有机介质的独特方法制备改进的钒 - 磷混合氧化物。 新氧化物的实质固有表面积和微晶结构在正丁烷到马来酸酐的催化气相氧化中产生有利的活性和选择性效应。 这些氧化物也可用于从合适的烃进料生产酸酐。

公开(公告)号：US4006168A

公开(公告)日：1977-02-01

申请号：US563740

申请日：1975-03-31

申请人： Ralph O. Kerr

发明人： Ralph O. Kerr

IPC分类号： B01J23/92 ,  B01J38/42 ,  C07C51/31 ,  C07D307/60

CPC分类号： B01J38/42 ,  B01J23/92 ,  C07C51/313 ,  Y02P20/584

摘要： Molybdenum - vanadium - oxygen oxidation catalyst for producing maleic anhydride from benzene is regenerated and stabilized by the addition of a compound of Mo, Ni, Co, Mn or U, preferably a volatile compound, to the catalyst, after a decline in activity.

摘要翻译： 在活性下降后，通过向催化剂中添加Mo，Ni，Co，Mn或U化合物，优选挥发性化合物，再生和稳定用于从苯生产马来酸酐的钼 - 钒 - 氧氧化催化剂。