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1. 发明专利

DE69113823T2 未知
公开(公告)号：DE69113823T2
公开(公告)日：1996-07-11
申请号：DE69113823
申请日：1991-01-22
申请人： MITSUBISHI CHEM CORP
发明人： YOKOYAMA TOSHIHARU , MATSUYAMA NAOKO , MAKI TAKAO
IPC分类号： B01J23/26 , C07C45/41 , B01J35/10 , C07C47/02 , C07C47/32

2. 发明专利

DE3740313C2 未知
公开(公告)号：DE3740313C2
公开(公告)日：1996-02-15
申请号：DE3740313
申请日：1987-11-27
申请人： MITSUBISHI CHEM CORP
发明人： MAKI TAKAO , YOKOYAMA TOSHIHARU , NAKANISHI AKIO , SHIODA KATASHI , ASATANI HARUKI
IPC分类号： C07C7/13 , B01D15/00 , B01D15/08 , C07C1/00 , C07C7/00 , C07C15/24 , C07C67/00 , C07C7/14 , B01J20/18
摘要： A method of separating 2,6-dimethylnaphthalene from a feed material containing a mixture of dimethylnaphthalene isomers comprises the steps of: adsorption separation using an adsorbent of a zeolite Y containing alkali metal or zinc and a desorbent of an organic solvent mainly composed of paraxylene and/or orthoxylene to obtain a solution consisting of the desorbent and the feed material containing 2,6-dimethylnaphthalene at a concentration of at least 60 wt % on the feed material other than desorbent; and crystallization of the solution having a concentration of the desorbent at 30 to 90 wt % to obtain 2,6-dimehtylnaphthalene of high purity in a crystalline form.

3. 发明专利

DE69113823D1 未知
公开(公告)号：DE69113823D1
公开(公告)日：1995-11-23
申请号：DE69113823
申请日：1991-01-22
申请人： MITSUBISHI CHEM CORP
发明人： YOKOYAMA TOSHIHARU , MATSUYAMA NAOKO , MAKI TAKAO
IPC分类号： B01J23/26 , C07C45/41 , B01J35/10 , C07C47/02 , C07C47/32

4. 发明专利

DE69403885T2 未知
公开(公告)号：DE69403885T2
公开(公告)日：1998-01-29
申请号：DE69403885
申请日：1994-12-20
申请人： MITSUBISHI CHEM CORP
发明人： TAKEWAKI TAKAHIKO , FUJITA NAOKO , YOKOYAMA TOSHIHARU , MAKI TAKAO
IPC分类号： B01J23/46 , B01J35/10 , C07C5/11
摘要： A method for producing a cycloolefin, which comprises partially hydrogenating a monocyclic aromatic hydrocarbon in the presence of water and a ruthenium catalyst supported on silica modified by zirconium oxide.

5. 发明专利

DE69403885D1 未知
公开(公告)号：DE69403885D1
公开(公告)日：1997-07-24
申请号：DE69403885
申请日：1994-12-20
申请人： MITSUBISHI CHEM CORP
发明人： TAKEWAKI TAKAHIKO , FUJITA NAOKO , YOKOYAMA TOSHIHARU , MAKI TAKAO
IPC分类号： B01J23/46 , B01J35/10 , C07C5/11
摘要： A method for producing a cycloolefin, which comprises partially hydrogenating a monocyclic aromatic hydrocarbon in the presence of water and a ruthenium catalyst supported on silica modified by zirconium oxide.

6. 发明专利

DE69108120T2 未知
公开(公告)号：DE69108120T2
公开(公告)日：1995-11-02
申请号：DE69108120
申请日：1991-07-10
申请人： MITSUBISHI CHEM CORP
发明人： SETOYAMA TOHRU , TAKEWAKI TAKAHIKO , MAKI TAKAO
IPC分类号： B01J23/46 , B01J23/656 , B01J32/00 , B01J35/10 , C07B61/00 , C07C5/11 , C07C13/20
摘要： A method for producing a cycloolefin which comprises partially hydrogenating an aromatic hydrocarbon with hydrogen in a liquid phase in the presence of water and a catalyst having as main component ruthenium supported on a carrier, to form the corresponding cycloolefin, wherein an oxide with the total pore volume of pores having radii of from 20 to 100,000 ANGSTROM being from 0.3 to 10 cc/g and with the volume of pores having radii of from 20 to 200 ANGSTROM constituting at most 15% of the total pore volume, is used as the carrier for the catalyst.

7. 发明专利

JPH07291915A PRODUCTION OF 1,4-DICYANOBUTENES 失效
公开(公告)号：JPH07291915A
公开(公告)日：1995-11-07
申请号：JP11178694
申请日：1994-04-28
申请人： MITSUBISHI CHEM CORP
发明人： YAMAGATA NAOKO , MAKI TAKAO
IPC分类号： C07C253/30 , C07B61/00 , C07C255/04
摘要： PURPOSE:To high selectively produce a 1,4-dicyanobutene with industrial advantage by conducting dimerization of acrylonitrile in the presence of a phosphinite or phosphonite catalyst and in the coexistence a carbamic acid derivative. CONSTITUTION:This production of a 1,4-dicyanobutene is carried out by dimerizing acrylonitrile in the presense of a phosphinite catalyst or a phosphonite catalyst and in the coexistence of a carbamic acid derivative of the formula I (R is an alkyl, a cycloalkyl or an aryl; R' is H, an alkyl, a cycloalkyl or an aryl; a ring may be formed from R and R'). As the catalyst, a compound of the formula II or the formula III (R to R , R to R ), e.g. methyldiphenyl phosphinite or diethylphenyl phosphonite is preferably used. In addition, a phosphinite catalyst is preferably used in view of stability of the catalyst. Since the dimerization is inhibited by water, the content of water is reduced recommendably to about 100ppm by a satisfactory drying treatment. This method is free from clogging and advantageous in view of operations.

8. 发明专利

JPH08176040A PRODUCTION OF CYCLOALKANOL 失效
公开(公告)号：JPH08176040A
公开(公告)日：1996-07-09
申请号：JP31502094
申请日：1994-12-19
申请人： MITSUBISHI CHEM CORP
发明人： MORIYASU MASATAKA , SETOYAMA TORU , TAKEWAKI TAKAHIKO , YAMAGUCHI TAKAHIRO , FUJITA NAOKO , MAKI TAKAO
IPC分类号： B01J29/40 , B01J29/87 , C07B61/00 , C07C29/04 , C07C35/08
摘要： PURPOSE: To obtain the subject compound in high yield and facilitate separation and purification of the compound by carrying out hydration reaction of a cycloalkene in the coexistence of fluorobenzoic acid when the cycloalkene is hydrated in the presence of a solid acid catalyst. CONSTITUTION: This compound is obtained by hydrogenating a cycloalkene (preferably having 5-8 membered ring) in the coexistence of a solid acid catalyst (preferably H type gallosilicate) and fluorobenzoic acid (preferably fluorobenzoic acid having >=2 fluorine atoms, e.g. 2,3-difluorobenzoic aid). The weight ratio of the catalyst to the cycloalkane is preferably 0.05-20 and the amount of fluorobenzoic acid added is preferably 0.05-2mol per mol of the cycloalkene. The molar ratio of water to the cycloalkene is preferably 1-30. Furthermore, hydration reaction is preferably carried out in an inert gas atmosphere having

9. 发明专利

JPH07258130A PRODUCTION OF CYCLOALKANOL 失效
公开(公告)号：JPH07258130A
公开(公告)日：1995-10-09
申请号：JP5187594
申请日：1994-03-23
申请人： MITSUBISHI CHEM CORP
发明人： TAKEWAKI TAKAHIKO , YOKOYAMA TOSHIHARU , MAKI TAKAO
IPC分类号： B01J21/16 , C07B61/00 , C07C29/04 , C07C35/02
摘要： PURPOSE:To obtain a cycloalkanol in an industrially advantageous way by hydration of a cycloalkene in the presence of a specifically treated ion exchange- type lamellar substance. CONSTITUTION:The cycloalkanol is obtained by hydration of a cycloalkene in the presence of an ion exchange-type lamellar substance treated with at least one kind of metal compound selected from those of Al, Si, Ti and Zr. The lamellar substance can be obtained by contact treatment of the original substance with at least one kind of metal compound selected from those of Al, Si, Ti and Zr in a liquid phase (esp. pref. in the presence of a nitrogen-contg. compound) followed by baking. The ion exchange-type lamellar substance is pref. smectite, kaolinite or vermiculite.

10. 发明专利

JPH08176041A PRODUCTION OF CYCLOALKANOL 失效
公开(公告)号：JPH08176041A
公开(公告)日：1996-07-09
申请号：JP31856894
申请日：1994-12-21
申请人： MITSUBISHI CHEM CORP
发明人： MORIYASU MASATAKA , SETOYAMA TORU , TAKEWAKI TAKAHIKO , YAMAGUCHI TAKAHIRO , FUJITA NAOKO , MAKI TAKAO
IPC分类号： B01J29/87 , C07B61/00 , C07C29/04 , C07C35/08
摘要： PURPOSE: To obtain the subject compound in high yield and facilitate separation and purification of the compound by carrying out hydration reaction of a cycloalkene in the coexistence of a benzoic acid derivative having a specific substituent group when the cycloalkene is hydrated in the presence of a solid acid catalyst. CONSTITUTION: In hydrating a cycloalkene (preferably having 5-8-membered ring) in the presence of a solid acid catalyst (preferably H type gallosilicate having a pentane structure), benzoic acid (preferably 2-benzoylbenzoic acid) having a substituent group selected from an alkoxy, an aryloxy, an alkylcarbonyl, an arylcarbonyl, an alkyloxycarbonyl, an aryloxycarbonyl, an aryl and an aryl alkyl is added to the reactional system. The benzoic acid is used in an amount of 0.05-2mol per mol of cycloalkene when an organic solvent is not used. Furthermore, the hydration reaction is preferably carried out at 80 160 deg.C for 0.5-5hr under 0.2-2MPa pressure in an inert gas atmosphere having

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