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公开(公告)号：US5284987A
公开(公告)日：1994-02-08
申请号：US831167
申请日：1992-02-05
CPC分类号： C07C13/48 , C07C5/31 , B01J2219/00101 , Y10S203/06
摘要： A method for the acid catalyzed cyclization of an alkenylbenzene feedstock to a dimethyltetralin in a liquid phase reaction wherein the desired dimethyltetralin is removed from the reaction mixture by distillation simultaneously with the addition of the feedstock to the reaction mixture.
摘要翻译： 在液相反应中将烯基苯原料酸催化环化为二甲基四氢萘的方法，其中通过与反应混合物中加入原料同时从反应混合物中除去所需的二甲基儿茶烯。
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公开(公告)号：US5118892A
公开(公告)日：1992-06-02
申请号：US556350
申请日：1990-07-20
摘要： A method for preparing one or more diemthylnaphthalenes from one or more dimethyltetralins, and optionally for preparing one or more other specific dimethylnaphthalenes by isomerization of the aforesaid dimethylnaphthalene(s) is disclosed.
摘要翻译： 公开了一种从一种或多种二甲基儿茶素制备一种或多种二甲基萘的方法，以及任选通过上述二甲基萘异构化制备一种或多种其它特定的二甲基萘的方法。
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公开(公告)号：US5073670A
公开(公告)日：1991-12-17
申请号：US556297
申请日：1990-07-20
CPC分类号： C07C15/24 , C07C5/2737 , C07C5/31 , B01J2219/00101 , C07C2102/10 , C07C2529/08 , C07C2529/12 , C07C2529/74
摘要： A method for preparing one or more specific dimethyltetralins from either 5-(o-, m-, or p-tolyl)-pent-1-or -2-ene or 5-phenyl-hex-1- or -2-ene, and optionally for preparing one or more specific dimethylnaphthalenes from the aforesaid dimethyltetralins is disclosed.
摘要翻译： 从5-（邻 - ，间 - 或对 - 甲苯基） - 戊-1-或2-烯或5-苯基 - 六-1-或-2-烯制备一种或多种特定二甲基儿茶素的方法， 并且任选地用于从上述二甲基儿子素制备一种或多种特定的二甲基萘。
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公开(公告)号：US5034561A
公开(公告)日：1991-07-23
申请号：US539087
申请日：1990-06-15
CPC分类号： C07C5/31 , B01J2219/00101
摘要： A method is provided for cyclizing an alkenylbenzene to a dialkyltetrahydronaphthalene (dialkyltetralin) in the presence of a solid cyclization catalyst constituted by a relatively low acidity, ultrastable, hydrogen form of crystalline aluminosilicate zeolite Y having a sodium oxide-to-alumina bulk molar ratio in the range of about 0.001 to about less than 1, a unit cell size no greater than about 24.3 Angstroms, and a sodium content of no more than about 0.4 percent by weight, calculated as elemental sodium and based on the weight of the zeolite. This catalyst provides more activity, more stability, higher product purity, and higher product yields than known prior art zeolite cyclization catalysts notwithstanding its relatively lower acidity. A preferred alkenylbenzene is 5-(o-tolyl)-pent-2-ene which is converted in relatively high yields and relatively high selectivities to 1,5 dimethyltetrahydronaphthalene.
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5.发明授权Preparation of a dimethyltetralin by cyclizing an orthotolylpentene phenylhexene using an ultra-stable crystalline aluminosilicate molecular sieve y-zeolite 失效通过使用超稳定的结晶硅铝酸盐分子筛y-沸石环化环戊基戊烯或苯基己烯来制备二甲基儿茶酚
公开(公告)号：US5401892A
公开(公告)日：1995-03-28
申请号：US24152
申请日：1993-02-26
CPC分类号： C07C15/24 , C07C13/48 , C07C5/2737 , C07C5/31 , B01J2219/00101 , C07C2102/10 , C07C2529/08 , C07C2529/12 , C07C2529/74
摘要： A method for preparing one or more specific dimethyltetralins from either 5-(o-, m-, or p-tolyl)-pent-1- or -2-ene or 5-phenyl-hex-1- or -2-ene, and optionally for preparing one or more specific dimethylnaphthalenes from the aforesaid dimethyltetralins is disclosed wherein the orthotolylpentene or phenylhexane is cyclized to the dimethyltetralin using an ultra-stable crystalline aluminosilicate molecular sieve Y-zeolite.
摘要翻译： 从5-（邻 - ，对 - 或对 - 甲苯基） - 戊-1-或2-烯或5-苯基 - 六-1-或-2-烯制备一种或多种特异性二甲基儿茶素的方法， 并且任选地用于从上述二甲基儿茶素制备一种或多种特定的二甲基萘，其中使用超稳定的结晶硅铝酸盐分子筛Y-沸石将邻位异戊烯基或苯基己烷环化成二甲基儿茶酚。
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公开(公告)号：US5030781A
公开(公告)日：1991-07-09
申请号：US539007
申请日：1990-06-15
CPC分类号： C07C13/48 , C07C5/31 , B01J2219/00101
摘要： A method for preparing one or more specific dimethyltetralins by cyclization of either 5-(o-, m, or p-tolyl)-pent-1- or -2-ene or 5-phenyl-hex-1- or -2-ene, with additional cyclization treatment, and optionally cracking, of a heavy fraction of the cyclization product, is disclosed.
摘要翻译： 通过5-（邻 - ，间或对 - 甲苯基） - 戊-1-或2-烯或5-苯基 - 六-1-或-2-烯环的环化制备一种或多种特定的二甲基色烯的方法 ，公开了环化产物的重馏分的额外的环化处理和任选的裂解。
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公开(公告)号：US5012024A
公开(公告)日：1991-04-30
申请号：US316309
申请日：1989-02-27
摘要： A method for preparing one or more dimethylnaphthalenes from one or more dimethyltetralins, and optionally for preparing one or more other specific dimethylnaphthalenes by isomerization of the aforesaid dimethylnaphthal-dimethylnaphthalene(s) is disclosed.
摘要翻译： 公开了一种由一种或多种二甲基儿茶素制备一种或多种二甲基萘的方法，并且任选通过上述二甲基萘二甲基萘的异构化制备一种或多种其它特定的二甲基萘。
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公开(公告)号：US4999326A
公开(公告)日：1991-03-12
申请号：US539619
申请日：1990-06-18
摘要： A reactivation process for a deactivated supported palladium catalyst involves contacting the catalyst with an organic polar solvent for naphthalenic compounds at a temperature below about 200.degree. C. The organic polar solvent has a dielectric constant at 25.degree. C. in the range of about 4 to about 80 and has a boiling point at atmospheric pressure in the range of about 30.degree. C. to about 230.degree. C. Preferred organic polar solvents are acetone and methanol, as well as mixtures thereof.
摘要翻译： 对于失活的负载钯催化剂的再活化方法包括在低于约200℃的温度下使催化剂与萘化合物的有机极性溶剂接触。有机极性溶剂的介电常数在25℃，范围为约4〜 约80℃，并且在大气压下的沸点在约30℃至约230℃的范围内。优选的有机极性溶剂是丙酮和甲醇，以及它们的混合物。
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公开(公告)号：US4950825A
公开(公告)日：1990-08-21
申请号：US316308
申请日：1989-02-27
IPC分类号： B01J29/08 , B01J29/12 , C07B61/00 , C07C5/22 , C07C5/27 , C07C5/31 , C07C5/367 , C07C5/373 , C07C5/393 , C07C13/48 , C07C15/24
CPC分类号： C07C15/24 , C07C5/2737 , C07C5/31 , C07C2102/10 , C07C2529/08 , C07C2529/12 , C07C2529/74
摘要： A method for preparing one or more specific dimethyltetralins from either 5-(o-, m-, or p-tolyl)-pent-1- or -2-ene or 5-phenyl-hex-1- or -2-ene, and optionally for preparing one or more specific dimethylnaphthalenes from the aforesaid dimethyltetralins is disclosed.
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10.发明授权Production of high purity aromatic carboxylic acid by oxidation in benzoic acid and water solvent 失效在苯甲酸和水溶剂中通过氧化生产高纯度芳族羧酸公开(公告)号：US06562997B2
公开(公告)日：2003-05-13
申请号：US09766192
申请日：2001-01-19
IPC分类号： C07C5116
摘要： Processes for the production of aromatic carboxylic acids is disclosed. The aromatic acids are produced by the liquid phase oxidation of a suitable acid precursor in a reaction medium comprising benzoic acid. According to one embodiment, the oxidation is carried out under plug-flow reaction conditions in a plug-flow reactor. The plug-flow conditions can be achieved by the use of a series of continuous stirred tank reactors. In another embodiment, the oxidation is carried out in two continuous stirred tank reactors fluidly connected in series. The preferred oxidation products are terephthalic acid, isophthalic acid, trimellitic acid, 2,6-naphthalene dicarboxylic acid, 1,5-napthalene dicarboxylic acid, 2,7-naphthalene dicarboxylic acid and phthalic acid.
摘要翻译： 公开了制备芳族羧酸的方法。 芳族酸通过在包含苯甲酸的反应介质中的合适的酸前体的液相氧化产生。 根据一个实施方案，氧化在活塞流反应器的活塞流反应条件下进行。 堵塞流动条件可以通过使用一系列连续搅拌釜反应器来实现。 在另一个实施方案中，氧化是在两个连续的搅拌釜反应器中进行的，该反应器是流体连接的。 优选的氧化产物是对苯二甲酸，间苯二甲酸，偏苯三酸，2,6-萘二甲酸，1,5-萘二羧酸，2,7-萘二甲酸和邻苯二甲酸。
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