1.
    发明专利
    未知

    公开(公告)号:DE4217044B4

    公开(公告)日:2006-04-13

    申请号:DE4217044

    申请日:1992-05-22

    Applicant: KAO CORP

    Abstract: A process for producing a hydrogenation reaction catalyst precursor is disclosed, including the steps of: (i) coating the outer surface of at least one of a first titanium oxide and a first titanium hydroxide having an outer surface area of at least 15 m2/g with at least one of a second titanium oxide and a second titanium hydroxide formed by hydrolyzing at least one of a titanium alkoxide represented by Formula (I) and a titanium alkoxo acid represented by Formula (II) to prepare a catalyst carrier (A); Ti(OR)4(I) wherein R represents an alkyl group having from 1 to 18 carbon atoms or an aryl group, H2[Ti(OR)6](II) wherein R has the same meaning as above; (ii) applying a metal oxide composition (B) onto the catalyst carrier (A) obtained in step (i), or mixing the metal oxide composition (B) with the catalyst carrier (A) to obtain a hydrogenation reaction catalyst precursor. Also, a process for producing an alcohol is described, including catalytically reducing an organic carboxylic acid ester with hydrogen in the presence of a catalyst obtained by reducing the hydrogenation reaction catalyst precursor produced by the process described above.

    2.
    发明专利
    未知

    公开(公告)号:DE4131209C2

    公开(公告)日:2002-06-20

    申请号:DE4131209

    申请日:1991-09-19

    Applicant: KAO CORP

    Abstract: A process for producing alcohols comprising catalytically reducing fats and oils or fatty acid esters with hydrogen in the presence of a catalyst for ester reduction is disclosed, wherein the starting oils are first treated at a temperature of from 50 DEG to 200 DEG C. in hydrogen gas or a mixed gas of hydrogen and an inert gas in the presence of a nickel catalyst to yield a sulfur content at not more than 0.6 ppm an acid value (KOH mg/g) of not more than 2. By use of the thus purified starting oils, the catalyst for ester reduction exhibits a prolonged duration.

    3.
    发明专利
    未知

    公开(公告)号:FR2667062B1

    公开(公告)日:1993-12-03

    申请号:FR9111659

    申请日:1991-09-20

    Applicant: KAO CORP

    Abstract: A process for producing alcohols comprising catalytically reducing fats and oils or fatty acid esters with hydrogen in the presence of a catalyst for ester reduction is disclosed, wherein the starting oils are first treated at a temperature of from 50 DEG to 200 DEG C. in hydrogen gas or a mixed gas of hydrogen and an inert gas in the presence of a nickel catalyst to yield a sulfur content at not more than 0.6 ppm an acid value (KOH mg/g) of not more than 2. By use of the thus purified starting oils, the catalyst for ester reduction exhibits a prolonged duration.

    4.
    发明专利
    未知

    公开(公告)号:DE4131209A1

    公开(公告)日:1992-03-26

    申请号:DE4131209

    申请日:1991-09-19

    Applicant: KAO CORP

    Abstract: A process for producing alcohols comprising catalytically reducing fats and oils or fatty acid esters with hydrogen in the presence of a catalyst for ester reduction is disclosed, wherein the starting oils are first treated at a temperature of from 50 DEG to 200 DEG C. in hydrogen gas or a mixed gas of hydrogen and an inert gas in the presence of a nickel catalyst to yield a sulfur content at not more than 0.6 ppm an acid value (KOH mg/g) of not more than 2. By use of the thus purified starting oils, the catalyst for ester reduction exhibits a prolonged duration.

    7.
    发明专利
    未知

    公开(公告)号:DE4120536C2

    公开(公告)日:2003-05-08

    申请号:DE4120536

    申请日:1991-06-21

    Applicant: KAO CORP

    Abstract: The hydrogenation catalyst comprises copper, iron, aluminum and optionally zine and a support selected from aluminum hydroxide, aluminum oxide and a mixture of aluminum hydroxide and aluminum oxide, having an atomic ratio of Cu/Fe/Al/Zn in the range of 1/(0.4 to 2.5)/(0.5 to 5.0)/(0 to 1.0). It is produced by dispersing a material for the support in an aqueous medium, depositing cupper and iron on the dispersant, further depositing thereon aluminum and sintering it. It is a catalyst for production of a higher alcohol from its methyl ester, effecting hydrogenation with an improved selectivity and activity.

    8.
    发明专利
    未知

    公开(公告)号:DE69414240D1

    公开(公告)日:1998-12-03

    申请号:DE69414240

    申请日:1994-01-20

    Applicant: KAO CORP

    Abstract: PCT No. PCT/JP94/00077 Sec. 371 Date Jun. 6, 1995 Sec. 102(e) Date Jun. 6, 1995 PCT Filed Jan. 20, 1994 PCT Pub. No. WO95/19844 PCT Pub. Date Jul. 27, 1995A method for preparing a copper-containing hydrogenation reaction catalyst includes the step of reducing a formed precursor of a copper-containing hydrogenation reaction catalyst with hydrogen gas or a mixture of hydrogen and inert gas by liquid phase reduction in a stream of a solvent. The reductive activation is carried out by the two steps of performing the first stage of liquid phase reduction by which the catalyst precursor is activated in the temperature range of from 20 DEG to 140 DEG C. so that at least 10% by weight of the copper oxide contained in the catalyst precursor can be reduced by the time when the temperature passes 140 DEG C., and then performing the second stage of liquid phase reduction by which the catalyst precursor is further activated in the temperature range of from 140 DEG to 250 DEG C. The catalyst thus obtained has markedly improved catalytic activity and selectivity. An alcohol of high quality can be obtained at a high productivity using the catalyst in a fixed bed continuous reaction system.

    9.
    发明专利
    未知

    公开(公告)号:BR9102621A

    公开(公告)日:1992-01-21

    申请号:BR9102621

    申请日:1991-06-21

    Applicant: KAO CORP

    Abstract: The hydrogenation catalyst comprises copper, iron, aluminum and optionally zine and a support selected from aluminum hydroxide, aluminum oxide and a mixture of aluminum hydroxide and aluminum oxide, having an atomic ratio of Cu/Fe/Al/Zn in the range of 1/(0.4 to 2.5)/(0.5 to 5.0)/(0 to 1.0). It is produced by dispersing a material for the support in an aqueous medium, depositing cupper and iron on the dispersant, further depositing thereon aluminum and sintering it. It is a catalyst for production of a higher alcohol from its methyl ester, effecting hydrogenation with an improved selectivity and activity.

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