METHOD OF ACTIVATING RANEY ALLOYS

    公开(公告)号:GB1206981A

    公开(公告)日:1970-09-30

    申请号:GB4684767

    申请日:1967-10-13

    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.

    6.
    发明专利
    未知

    公开(公告)号:DE2547836A1

    公开(公告)日:1976-04-29

    申请号:DE2547836

    申请日:1975-10-25

    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.

    ISOLATION OF CYCLOHEXENE
    9.
    发明专利

    公开(公告)号:JPS5441845A

    公开(公告)日:1979-04-03

    申请号:JP10728177

    申请日:1977-09-08

    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.

    ISOLATION OF CYCLOHEXENE
    10.
    发明专利

    公开(公告)号:JPS5441843A

    公开(公告)日:1979-04-03

    申请号:JP10727977

    申请日:1977-09-08

    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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