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1.发明公开LOW PRESSURE PROCESS FOR THE HYDROGENATION OF DIMETHYL BENZENEDICARBOXYLATES TO THE CORRESPONDING DIMETHYL CYCLOHEXANEDICARBOXYLATES 失效二甲基苯甲酸甲酯氢化生成相应的二甲基环己烷二甲酸酯的低压方法
公开(公告)号：EP0703894A1
公开(公告)日：1996-04-03
申请号：EP94919348.0
申请日：1994-06-03
CPC分类号： C07C67/303 , B01J23/44 , B01J23/462 , B01J23/892 , B01J35/0066 , B01J35/1042 , B01J35/1061 , C07C69/75
摘要： Disclosed is a process for the preparation of a dimethyl cyclohexanedicarboxylate by the hydrogenation of the corresponding dimethyl benzenedicarboxylate ester in the presence of a class of supported catalysts comprising palladium and a second Group VIII metal selected from nickel, platinum, ruthenium or a mixture thereof deposited on an alumina support which have a unique combination of characteristics. The use of the catalysts permits the process to be carried out at significantly lower process pressures.
摘要翻译： 本发明公开了一种制备环己烷二羧酸二甲酯的方法，该方法是在一类负载型催化剂的存在下，通过氢化相应的苯二甲酸二甲酯来制备环己烷二羧酸二甲酯，所述负载型催化剂包含钯和选自镍，铂，钌或其混合物的第二第VIII族金属 具有独特组合特征的氧化铝载体。 催化剂的使用允许该过程在显着较低的过程压力下进行。
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公开(公告)号：EP0655052A1
公开(公告)日：1995-05-31
申请号：EP93918534.0
申请日：1993-08-02
发明人： SUMNER, Charles, Edwan, Jr. , GUSTAFSON, Bruce, LeRoy , ARNOLD, Ernest, William, III , FUGATE, Eric, Jackson , FULLER, Dewey, Wayne, Jr.
CPC分类号： C07C51/265 , Y02P20/582 , C07C63/331
摘要： Provided is a process for preparing 2,5-diphenylterephthalic acid, which is useful in preparing certain polyesters, especially liquid-crystalline polyesters. In this process, p-xylene is di-alkylated with cyclohexene to provide 2,5-dicyclo-hexyl-p-xylene, which is in turn dehydrogenated to provide 2,5-diphenylxylene. 2,5-Diphenylxylene is then oxidized to provide 2,5-diphenylterephthalic acid by utilization of a cobaltous/manganous/bromide oxidation system.
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公开(公告)号：EP0524216B1
公开(公告)日：1994-09-14
申请号：EP91907178.7
申请日：1991-03-28
IPC分类号： C07D307/08
CPC分类号： C07D307/08
摘要： Disclosed is a process for the preparation of high-purity tetrahydrofuran from a mixture of 2,5-dihydrofuran and 3,4-epoxy-1-butene and/or crotonaldehyde wherein the mixture is hydrogenated in the presence of a nickel or platinum catalyst to obtain a product consisting essentially of tetrahydrofuran and 1-butanol which are readily separable.
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4.发明授权HYDROGENATION OF POLYESTER OLIGOMERS CONTAINING TEREPHTHALIC ACID RESIDUES 有权TEREPHTHALSÄURERESTEHALTIGEN聚酯低聚物的氢化
公开(公告)号：EP1478675B1
公开(公告)日：2008-01-02
申请号：EP03716178.3
申请日：2003-02-24
IPC分类号： C08G63/199 , C08G63/91 , B01J23/40 , C07C61/09
CPC分类号： C08G63/199 , B01J23/40 , B01J23/892 , C08G63/916
摘要： Disclosed is a process of hydrogenating a polyester oligomer containing terephthalic acid residues wherein terephthalic acid residues are converted to residues of 1,4-cyclohexanedicarboxylic acid. Also disclosed is a process for the preparation of polyesters containing 1,4-cyclohexanedicarboxylic acid residues by first hydrogenating a polyester oligomer containing terephthalic acid residues and then reacting the resulting oligomer with one or more polyester-forming reactants to produce a higher molecular weight polyester.
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5.发明授权LOW PRESSURE PROCESS FOR THE HYDROGENATION OF DIMETHYL BENZENEDICARBOXYLATES TO THE CORRESPONDING DIMETHYL CYCLOHEXANEDICARBOXYLATES 失效低压流程FOR DIMETHYLBENZOLDICARBOXYLATEN加氢适当DIMETHYLCYCLOHEXANCARBOXYLATEN
公开(公告)号：EP0703894B1
公开(公告)日：1998-08-26
申请号：EP94919348.6
申请日：1994-06-03
IPC分类号： C07C67/303 , C07C69/75
CPC分类号： C07C67/303 , B01J23/44 , B01J23/462 , B01J23/892 , B01J35/0066 , B01J35/1042 , B01J35/1061 , C07C69/75
摘要： Disclosed is a process for the preparation of a dimethyl cyclohexanedicarboxylate by the hydrogenation of the corresponding dimethyl benzenedicarboxylate ester in the presence of a class of supported catalysts comprising palladium and a second Group VIII metal selected from nickel, platinum, ruthenium or a mixture thereof deposited on an alumina support which have a unique combination of characteristics. The use of the catalysts permits the process to be carried out at significantly lower process pressures.
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6.发明公开HYDROGENATION OF POLYESTER OLIGOMERS CONTAINING TEREPHTHALIC ACID RESIDUES 有权TEREPHTHALSÄURERESTEHALTIGEN聚酯低聚物的氢化
公开(公告)号：EP1478675A1
公开(公告)日：2004-11-24
申请号：EP03716178.3
申请日：2003-02-24
IPC分类号： C08G63/199 , C08G63/91 , B01J23/40 , C07C61/09
CPC分类号： C08G63/199 , B01J23/40 , B01J23/892 , C08G63/916
摘要： Disclosed is a process of hydrogenating a polyester oligomer containing terephthalic acid residues wherein terephthalic acid residues are converted to residues of 1,4-cyclohexanedicarboxylic acid. Also disclosed is a process for the preparation of polyesters containing 1,4-cyclohexanedicarboxylic acid residues by first hydrogenating a polyester oligomer containing terephthalic acid residues and then reacting the resulting oligomer with one or more polyester-forming reactants to produce a higher molecular weight polyester.
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公开(公告)号：EP0844995B1
公开(公告)日：1999-11-17
申请号：EP96928908.1
申请日：1996-08-14
IPC分类号： C07D311/72
CPC分类号： C07D311/72 , Y02P20/582
摘要： Disclosed is an improved process for the preparation of alpha-tocopherol by the hydroxymethylation followed by the hydrogenation of non-α-tocopherols comprising β-, η-, and δ-tocopherols using a particular palladium on alumina catalyst wherein (1) the dispersion and depth of deposition of the palladium metal are within certain ranges, and (2) the alumina is of a particular crystalline phase.
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公开(公告)号：EP0703895B1
公开(公告)日：1998-05-13
申请号：EP94920074.5
申请日：1994-06-03
IPC分类号： C07C67/303 , C07C69/75
CPC分类号： C07C67/303 , C07C2601/14 , C07C69/75
摘要： Disclosed is a process for the preparation of a dimethyl cyclohexanedicarboxylate by the hydrogenation of the analogous dimethyl benzenedicarboxylate ester in the presence of a class of palladium on alumina catalysts which have a unique combination of characteristics. The use of the catalysts permits the process to be carried out at significantly lower process pressures.
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9.发明授权LOW PRESSURE PROCESS FOR THE MANUFACTURE OF CYCLOHEXANEDICARBOXYLATE ESTERS 失效低压工艺用于生产CYCLOHEXANDICARBOXYLATESTERN
公开(公告)号：EP0703896B1
公开(公告)日：1998-04-08
申请号：EP94920702.1
申请日：1994-06-03
IPC分类号： C07C67/303 , C07C69/75
CPC分类号： C07C67/303 , C07C69/75
摘要： Disclosed is a process for the manufacture of dialkyl cyclohexanedicarboxylates by the low pressure, catalytic hydrogenation of the corresponding dialkyl benzenedicarboxylate wherein the formation/accumulation of carbon monoxide is suppressed to maintain the activity of the precious metal catalyst.
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公开(公告)号：EP0844995A1
公开(公告)日：1998-06-03
申请号：EP96928908.0
申请日：1996-08-14
CPC分类号： C07D311/72 , Y02P20/582
摘要： Disclosed is an improved process for the preparation of alpha-tocopherol by the hydroxymethylation followed by the hydrogenation of non-α-tocopherols comprising β-, η-, and δ-tocopherols using a particular palladium on alumina catalyst wherein (1) the dispersion and depth of deposition of the palladium metal are within certain ranges, and (2) the alumina is of a particular crystalline phase.
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