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公开(公告)号:US3544485A
公开(公告)日:1970-12-01
申请号:US3544485D
申请日:1967-10-16
Applicant: TORAY INDUSTRIES
Inventor: TAIRA SHINICHI , KURODA AKIO
CPC classification number: B01J25/00 , Y10S585/906
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公开(公告)号:FR2276281A1
公开(公告)日:1976-01-23
申请号:FR7520391
申请日:1975-06-27
Applicant: TORAY INDUSTRIES
Inventor: AIZAWA HIDEYUKI , KURODA AKIO , MINAGA MASAHIRO , OHNISHI KOJI , MATSUHISA SEIKICHI
Abstract: Cyclohexanol is dehydrated to cyclohexene by heating it in the presence of a heteropolyacid catalyst. The heteropolyacid is selected from tungstophosphoric acid, tungstosilicic acid, molybdophosphoric acid and molybdosilicic acid. Tungstophosphoric acid can be improved in its catalytic performance by calcination. The dehydration reaction is preferably carried out in liquid phase continuously removing cyclohexene by distillation.
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公开(公告)号:FR2367037A1
公开(公告)日:1978-05-05
申请号:FR7730116
申请日:1977-10-06
Applicant: TORAY INDUSTRIES
Inventor: AIZAWA HIDEYUKI , KURODA AKIO
Abstract: Prodn. of cyclic olefins (II) from the corresp. aromatic hydrocarbons (I) comprises partial hydrogenation of (I) with H2 and a ruthenium hydrogenation catalyst (III) in an aq. dispersion contg. a phosphorus acid salt (IV).
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公开(公告)号:DE1667305A1
公开(公告)日:1971-05-13
申请号:DET0035085
申请日:1967-10-24
Applicant: TORAY INDUSTRIES
Inventor: TAIRA SHIN-ICHE , KURODA AKIO
IPC: B01J25/00 , C07C1/22 , C07C5/03 , C07C5/08 , C07C5/10 , C07C5/11 , C07C29/141 , C07C29/145 , C07C29/17 , C07C29/20 , C07C53/126 , C07C209/48 , C07C209/68 , C07D213/08 , C07D213/09
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公开(公告)号:GB1206981A
公开(公告)日:1970-09-30
申请号:GB4684767
申请日:1967-10-13
Applicant: TORAY INDUSTRIES
Inventor: TAIRA SHIXI-ICHI , KURODA AKIO
Abstract: 1,206,981. Activating Raney alloys. TORAY INDUSTRIES Inc. 13 Oct., 1967, No. 46847/ 67. Heading BIE. [Also in Divisions C2 and C5] Raney alloys are activated by treatment with water-in the presence of at least 1/20th part of a substance selected from aluminas, amines, lactams, N-substituted lactams having at least one hydrogen atom on the carbon atom adjacent to the CO group, oximes, N-substituted acid amides having at least one hydrogen atom on either the carbon atom adjacent to the CO of the amide group or the nitrogen atom of the amide group N:N' and N:N:N' urea derivatives and precursor(s) therefor.
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公开(公告)号:DE2547836A1
公开(公告)日:1976-04-29
申请号:DE2547836
申请日:1975-10-25
Applicant: TORAY INDUSTRIES
Inventor: KONDO TSUNEYUKI , KURODA AKIO
IPC: C07C20060101 , C07C131/02
Abstract: A novel process for preparing cycloalkanone oximes is disclosed. The process comprises (1) CONTACTING A NITROGEN COMPOUND SELECTED FROM THE GROUP CONSISTING OF NITROGEN OXIDES OR NITROSYL COMPOUNDS WITH AN AQUEOUS OR AN ALCOHOLIC SOLUTION CONTAINING STANNOUS, COPPER AND CHLORINE IONS TO PREPARE HYDROXYLAMINE, (2) ALLOWING A CYCLOALKANONE TO REACT WITH THE HYDROXYLAMINE TO FORM AN CYCLOALKANONE OXIME, (3) SEPARATING THE CYCLOALKANONE OXIME FROM THE REACTION MIXTURE BY EXTRACTION WITH AN ORGANIC SOLVENT AT A PH of less than 4.
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公开(公告)号:CA861495A
公开(公告)日:1971-01-19
申请号:CA861495D
Applicant: TORAY INDUSTRIES
Inventor: TAIRA SHIN-ICHI , KURODA AKIO
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公开(公告)号:JPS6115049B2
公开(公告)日:1986-04-22
申请号:JP10728077
申请日:1977-09-08
Applicant: Toray Industries
Inventor: KONDO TSUNEYUKI , KURODA AKIO , MATSUHISA SEIKICHI
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公开(公告)号:JPS5441845A
公开(公告)日:1979-04-03
申请号:JP10728177
申请日:1977-09-08
Applicant: TORAY INDUSTRIES
Inventor: KONDOU TSUNEYUKI , KURODA AKIO , MATSUHISA SEIKICHI
Abstract: PURPOSE:High-purity cyclohexene used as an intermediate for organic syntheses is isolated inexpensively by simple operations from a mixture containing benzene cyclohexene by the use of Y-type aluminosilicate zeolite from which alumina is previously removed by treatment. CONSTITUTION:Benzene is removed from a mixture of cyclohexene, cyclohexane and benzene by adsorbing it on a Y-type aluminosilicate zeolite of the formula Mn/2O.Al2O3.xSiO2yH2O (M is metal, n is valency of M; x is 3-6 and y is the content of crystal water) which is previously subjected to alumina removing and dewatering treatment at 200-600 deg.C, at a temperature preferably of 0-50 deg.C. Then the mixture of cyclohexane and cyclohexene is treated with another zeolite of the same type to remove cyclohexene by adsorption. Finally benzene and cylcohexene adsorbed on the zeolites are liberated by heating and recovered respectively.
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公开(公告)号:JPS5441843A
公开(公告)日:1979-04-03
申请号:JP10727977
申请日:1977-09-08
Applicant: TORAY INDUSTRIES
Inventor: KONDOU TSUNEYUKI , KURODA AKIO , MATSUHISA SEIKICHI
Abstract: PURPOSE:The selective adsorption of cyclohexene in benzene is conducted by using an adsorbent of Y-type aluminosilicate zeolite thereby isolating cyclohexene of high purity in simple operation and high economy. CONSTITUTION:A mixture of cyclohexene along with benzene and cyclohexane is brought into contact with a Y-type aluminosilicate zeolite of the formula Mn/2O Al2O3.xSiO2.yH2O (M is metal, n is valency of the metal, x is 3-6, y is the content of crystal water) which is previously subjected to dewatering treatment at 200-600 deg.C, at 0-50 deg.C to remove benzene by adsorption. Then the resulting mixture of cyclohexene and cyclohexane is treated with another Y- type aluminosilicate zeolite to remove cyclohexene by adsorption. The cyclohexene and benzene adsorbed on zeolites are liberated from zeolites by heating and recovered respectively.
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