-
公开(公告)号：US4175098A
公开(公告)日：1979-11-20
申请号：US922462
申请日：1978-07-06
申请人： Fujio Mizukami , Juichi Imamura
发明人： Fujio Mizukami , Juichi Imamura
CPC分类号： C07C45/36
摘要： A very efficient method with respect to the reaction velocity as well as selectivity is proposed for the preparation of .alpha.-tetralone by the liquid phase oxidation of tetralin with oxygen, in which a binary catalyst is employed which is composed of a compound of chromium or cobalt soluble in the reaction mixture and an N,N-dialkyl substituted carboxylic acid amide such as N,N-dimethylformamide, N,N-dimethylacetamide and the like.
摘要翻译： 提出了相对于反应速度以及选择性的非常有效的方法，通过用氧的四氢化萘的液相氧化制备α-四氢萘酮，其中使用二元催化剂，其由铬化合物或 可溶于反应混合物的钴和N，N-二烷基取代的羧酸酰胺如N，N-二甲基甲酰胺，N，N-二甲基乙酰胺等。
-
公开(公告)号：US4080390A
公开(公告)日：1978-03-21
申请号：US695039
申请日：1976-06-11
申请人： Juichi Imamura
发明人： Juichi Imamura
CPC分类号： C07C37/06 , B01J21/04 , B01J21/08 , B01J21/12 , B01J23/745 , B01J23/8906 , B01J23/8946 , B01J35/023 , B01J35/1019 , B01J35/1042 , B01J37/0201 , B01J37/18
摘要： A process for the production of o-phenylphenol in the presence of a catal composed of a .gamma.-alumina or silica-alumina support having a BET surface area of 150 - 300 m.sup.2 /g, a pore capacity of 0.50 - 0.85 ml/g and an iron content of at most 0.1 % by weight in terms of Fe.sub.2 O.sub.3 and an alumina content of at least 90 %, the support carrying thereon platinum in an amount of 0.1 - 5.0 % by weight based on the support, iridium in an amount of 0.1 - 0.4 times that of the platinum and an alkali metal oxide in an amount of 0.5 - 8.0 % by weight of the support. o-Phenylphenol is prepared at a high selectivity over a long period of time by supplying onto the catalyst maintained at 300.degree. - 420.degree. C o-cyclohexylphenol or a dehydrodimerized condensate obtained by aldol condensation of cyclohexanone together with gaseous hydrogen in an amount per hour in terms of liquid volume of 0.1 - 1.5 times the volume of the catalyst, and elevating the reaction temperature stepwise or continuously with the lapse of the reaction time, while slowing down, if necessary, the rate of supplying the starting materials, to effect a dehydrogenation reaction.
摘要翻译： 在由γ-氧化铝或二氧化硅 - 氧化铝载体组成的催化剂存在下制备邻苯基苯酚的方法，所述催化剂的BET表面积为150-300m2 / g，孔容为0.50〜0.85ml / g， 铁含量以Fe 2 O 3为最多0.1重量％，氧化铝含量为至少90％，载体上载持量为0.1-5.0重量％的载体，铱的量为0.1 - 铂的量的0.4倍，碱金属氧化物的量为载体重量的0.5〜8.0％。 通过向保持在300-420℃邻苯二酚的催化剂供应邻苯二酚，通过将环己酮与气态氢醇缩合得到的脱氢二聚缩合物以每小时的量 在液体体积为催化剂体积的0.1〜1.5倍的范围内，随着反应时间的延长逐步或连续地升高反应温度，同时如果需要，可以减缓原料的供给速度， 脱氢反应。
-
公开(公告)号：US4024180A
公开(公告)日：1977-05-17
申请号：US732800
申请日：1968-05-08
申请人： Nobuto Ohta , Juichi Imamura , Takehiko Matsuzaki
发明人： Nobuto Ohta , Juichi Imamura , Takehiko Matsuzaki
IPC分类号： C07C409/26 , G03B27/54 , C07C179/12
CPC分类号： G03B27/542 , C07C407/00 , C07C409/26
摘要： A process for the production of peracetic acid which comprises the steps of adding, to an inner solvent, acetaldehyde and at least one catalyst selected from the group consisting of strongly acidic carboxylic acids, strongly acidic phenols and nitric acid, and introducing oxygen gas or oxygencontaining gas into the resulting mixture while stirring the mixture and maintaining it at a temperature range of -5.degree. C to 50.degree. C.
摘要翻译： 一种制备过乙酸的方法，包括以下步骤：向内溶剂中加入乙醛和至少一种选自强酸性羧酸，强酸性酚和硝酸的催化剂，并引入氧气或含氧气体 将气体搅拌混合物并保持在-5℃至50℃的温度范围内，
-
公开(公告)号：US3950437A
公开(公告)日：1976-04-13
申请号：US424687
申请日：1973-12-14
申请人： Juichi Imamura , Moriyasu Ando , Kazuo Sasaki , Takumi Iio
发明人： Juichi Imamura , Moriyasu Ando , Kazuo Sasaki , Takumi Iio
CPC分类号： C07C37/60
摘要： Dihydric phenols are produced preferentially in high yields by having monohydric phenols or phenyl ethers oxidized by an organic peracid using, as a catalyst, at least one member selected from the group consisting of peracid stabilizers, polycarboxylic acids containing N or OH and possessed of a structure from which heavy metal ion-chelating property can theoretically be assumed, magnesium salts, sodium salts and potassium salts thereof, sodium salt, potassium salt and lower alkyl esters of phosphoric acid, and sodium salt and lower alkyl esters of pyrophosphoric acid.
摘要翻译： 通过使用作为催化剂的至少一种选自过酸稳定剂，含有N或OH的多元羧酸并具有结构的至少一种选自由有机过酸氧化的一元酚或苯基醚，优选以高产率生产二元酚 从理论上可以考虑重金属离子螯合性质的镁盐，钠盐和钾盐，磷酸的钠盐，钾盐和低级烷基酯，以及焦磷酸的钠盐和低级烷基酯。
-
公开(公告)号：US4400544A
公开(公告)日：1983-08-23
申请号：US341758
申请日：1982-01-22
IPC分类号： C07C49/403 , B01J27/00 , C07C45/00 , C07C45/34 , C07C67/00
CPC分类号： C07C45/34
摘要： The invention provides an efficient method for the preparation of cycloheone by the liquid-phase oxidation of cyclohexene in the presence of a catalyst system. The rate of conversion of the cyclohexene and the yield of cyclohexanone are unexpectedly increased when the reaction mixture brought into contact with oxygen or air contains a limited amount of an aliphatic alcohol having 2-10 carbon atoms in a molecule such as ethyl alcohol with the catalyst system composed of a palladium compound, e.g. PdCl.sub.2, and at least one co-catalytic ingredient which is a copper compound or iron compound such as CuCl.sub.2 or FeCl.sub.3. The influence of benzene or cyclohexane admixed in the reaction mixture was studied to indicate no adverse effects or even better results in the reaction giving further advantages of the process in which the starting cyclohexene need not be purified and can be used as prepared by the partial hydrogenation of benzene or partial dehydrogenation of cyclohexane.
摘要翻译： 本发明提供了一种在催化剂体系存在下通过环己烯的液相氧化制备环己酮的有效方法。 当与氧气或空气接触的反应混合物含有有限量的分子中具有2-10个碳原子的脂族醇（例如乙醇）与催化剂时，环己烯的转化率和环己酮的转化率出人意料地增加 系统由钯化合物组成，例如 PdCl 2和至少一种作为铜化合物或铁化合物如CuCl 2或FeCl 3的助催化成分。 研究了在反应混合物中混合的苯或环己烷的影响，表明在反应中没有不利影响或甚至更好的结果，给出其中起始环己烯不需要纯化并可通过部分氢化制备的方法的进一步优点 的苯或环己烷的部分脱氢。
-
6.发明授权Process for the production of intermediate oxidation products of toluenes having ether linkages 失效制备具有醚键的甲苯的中间体氧化产物的方法
公开(公告)号：US4272634A
公开(公告)日：1981-06-09
申请号：US102559
申请日：1979-12-11
申请人： Juichi Imamura
发明人： Juichi Imamura
IPC分类号： C07C43/205 , C07C43/275 , C07C45/36 , C07C45/00 , C07C37/00
CPC分类号： C07C43/2055 , C07C43/275 , C07C45/36
摘要： A process for the production of alcohols and/or aldehydes which comprises subjecting a toluene derivative having an ether linkage or linkages of the general formula: ##STR1## wherein RO is an ether grouping where R stands for a hydrocarbyl group with 1.about.20 carbon atoms which may carry an inert substituent or substituents and n stands for an integer of 1.about.2, to auto-oxidation with molecular oxygen in liquid phase to form the corresponding alcohol and/or aldehyde, characterized in that the reaction is carried out by using a lower saturated fatty acid and/or an anhydride thereof as solvent in the presence of a soluble cobalt salt and a bromine ion-supplying substance at a reaction temperature ranging from 30.degree. C. to 200.degree. C. in such manner that the conversion rate of the toluene derivative does not exceed 90%.
摘要翻译： 一种制备醇和/或醛的方法，其包括使具有醚键的甲苯衍生物或通式如下的连接：其中RO是醚基团，其中R代表具有1个碳原子数20的烃基 其可以携带惰性取代基或取代基，n表示1的整数，用于在液相中与分子氧自动氧化以形成相应的醇和/或醛，其特征在于反应通过使用 低级饱和脂肪酸和/或其酸酐作为溶剂，在可溶性钴盐和溴离子供应物质存在下，反应温度为30℃至200℃，使得转化率 甲苯衍生物不超过90％。
-
7.发明授权Process for the production of intermediate oxidation products of toluene having ether linkages 失效用于生产具有醚键的甲苯的中间氧化产物的方法
公开(公告)号：US4220605A
公开(公告)日：1980-09-02
申请号：US863954
申请日：1977-12-23
申请人： Juichi Imamura
发明人： Juichi Imamura
IPC分类号： C07C43/205 , C07C43/275 , C07C45/36 , C07C45/00 , C07C37/00
CPC分类号： C07C43/2055 , C07C43/275 , C07C45/36
摘要： A process for the production of alcohols and/or aldehydes which comprises subjecting a toluene derivative having an ether linkage or linkages of the general formula: ##STR1## wherein RO is an ether grouping where R stands for a hydrocarbyl group with 1.about.20 carbon atoms which may carry an inert substituent or substituents and n stands for an integer of 1.about.2, to auto-oxidation with molecular oxygen in liquid phase to form the corresponding alcohol and/or aldehyde, characterized in that the reaction is carried out by using a lower saturated fatty acid and/or an anhydride thereof as solvent in the presence of a soluble cobalt salt and a bromine ion-supplying substance at a reaction temperature ranging from 30.degree. C. to 200.degree. C. in such manner that the conversion rate of the toluene derivative does not exceed 90%.
摘要翻译： 一种制备醇和/或醛的方法，其包括使具有醚键的甲苯衍生物或通式如下的连接：其中RO是醚基团，其中R代表具有1个碳原子数20的烃基 其可以携带惰性取代基或取代基，n表示1的整数，用于在液相中与分子氧自动氧化以形成相应的醇和/或醛，其特征在于反应通过使用 低级饱和脂肪酸和/或其酸酐作为溶剂，在可溶性钴盐和溴离子供应物质存在下，反应温度为30℃至200℃，使得转化率 甲苯衍生物不超过90％。
-
8.发明授权
公开(公告)号：US4495373A
公开(公告)日：1985-01-22
申请号：US582565
申请日：1984-02-22
申请人： Shuichi Niwa , Juichi Imamura , Fujio Mizukami , Kazuo Shimizu , Yoshio Orito
发明人： Shuichi Niwa , Juichi Imamura , Fujio Mizukami , Kazuo Shimizu , Yoshio Orito
CPC分类号： B01J23/462 , C07C5/11 , C07C2521/04 , C07C2521/08 , C07C2521/12 , C07C2523/46 , C07C2523/72
摘要： The invention provides an improvement in the partial nuclear hydrogenation of an aromatic hydrocarbon compound in the liquid phase with admixture of water catalyzed by a ruthenium-containing solid catalyst. The scope of the invention is in the use of a novel ruthenium-containing catalyst supported on a silica gel and the like carrier and the catalyst is prepared by the hydrolysis and gelation of an alkoxide of silicon or aluminum in a solution containing a ruthenium compound, e.g. ruthenium alkoxide, followed by drying of the gelled material so that the resultant catalyst is very uniformly impregnated with the ruthenium ingredient to be imparted with greatly improved catalytis activity and selectivity for the intended reaction over conventional ruthenium-containing catalysts prepared by post-impregnation of a preformed silica gel carrier.
摘要翻译： 本发明提供了通过含钌固体催化剂催化的水的混合在液相中芳族烃化合物的部分核氢化的改进。 本发明的范围是使用负载在硅胶等载体上的新型含钌催化剂，并且通过在含有钌化合物的溶液中水解和凝胶化硅或铝的醇盐来制备催化剂， 例如 钌醇盐，然后干燥凝胶材料，使得所得到的催化剂非常均匀地浸渍钌成分，与所用的含钌催化剂相比，通过后浸渍法制备的催化剂活性和选择性大大提高。 预制的硅胶载体。
-
公开(公告)号：US4066707A
公开(公告)日：1978-01-03
申请号：US717534
申请日：1976-08-25
摘要： Diphenols, alkyl ethers and aryl ethers of diphenols are produced by subjecting phenols, alkyl ethers and aryl ethers of phenols to oxidation with an organic per-acid in the presence of at least one member selected from the group consisting of acetyl acetone and acetonyl acetone as the catalyst.
-
-
-
-
-
-
-
-
搜索结果
9 条记录 (耗时 0.015 秒)
