11.
    发明专利
    未知

    公开(公告)号:DE4120536A1

    公开(公告)日:1992-01-02

    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.

    Production of furfuryl alcohol
    16.
    发明专利
    Production of furfuryl alcohol 失效
    生产富勒醇

    公开(公告)号:JPS59190984A

    公开(公告)日:1984-10-29

    申请号:JP6394883

    申请日:1983-04-11

    Applicant: Kao Corp

    CPC classification number: Y02P20/52

    Abstract: PURPOSE: To produce the titled compound, in high yield, by reducing furfural in the presence of a catalyst having excellent activity, selectivity and durability and prepared by using a cupric salt, a ferrous salt and an Al salt as raw material, reacting the materials with urea and an alkali metal hydroxide, and calcining the product.
    CONSTITUTION: Furfuryl alcohol is prepared by reducing furfural in the presence of the catalyst mentioned below, under hydrogen pressure at 120W200°C. The above catalyst is prepared by (1) dissolving a cupric salt (especially cupric sulfate), a ferrous salt (especially ferrous nitrate) and an aluminum salt (especially aluminum sulfate) in water at Cu/Fe/Al (atomic ratios) of 1/(0.4W2.5)/(0.1W2.0), (2) dissolving urea to the solution and heating at ≥90°C to precipitate Cu, Fe and Al, (3) continuing the heating until the pH of the liquid reaches 5W7.5, (4) adding an alkali metal hydroxide to adjust the pH to 9.5W11.5, (5) reacting the components with each other at ≥60°C for 30minW5hr, and (6) separating the produced precipitate from the solution, washing with water, drying, and calcining at 550W800°C.
    COPYRIGHT: (C)1984,JPO&Japio

    Abstract translation: 目的:以高产率制备标题化合物,通过在具有优异活性,选择性和耐久性的催化剂存在下还原糠醛,并通过使用铜盐,亚铁盐和Al盐作为原料制备,使材料反应 用尿素和碱金属氢氧化物,并煅烧产物。 构成:在120-200℃的氢气压力下,在下述催化剂存在下,通过还原糠醛制备糠醇。 上述催化剂通过以下步骤制备:(1)将铜盐(特别是硫酸铜),亚铁盐(特别是硝酸亚铁)和铝盐(特别是硫酸铝)溶解在水中,Cu / Fe / Al(原子比)为1 /(0.4-2.5)/(0.1-2.0),(2)将尿素溶解在溶液中并在> = 90℃下加热以沉淀Cu,Fe和Al,(3)继续加热直到液体的pH 达到5-7.5,(4)加入碱金属氢氧化物以将pH调节至9.5-11.5,(5)使组分彼此在≥60℃反应30分钟-5小时,和(6) 从溶液中沉淀,用水洗涤,干燥并在550-800℃下煅烧。

    PRODUCTION OF CATALYST FOR HYDROGENATION

    公开(公告)号:JPH06226100A

    公开(公告)日:1994-08-16

    申请号:JP27855093

    申请日:1993-11-08

    Applicant: KAO CORP

    Abstract: PURPOSE:To provide the process for production which is greatly simplified in stages and is pollution-free by using aluminum hydroxide or aluminum oxide or a mixture composed thereof as a carrier and an alkaline material as a settling agent in production of the copper-iron-aluminum catalyst having specific atomic ratios. CONSTITUTION:The carrier is suspended in an aq. medium at the time of producing the catalyst for production of alcohol by hydrogenation of the ester of fatty acid by using the aluminum hydroxide or the aluminum oxide or the mixture composed thereof as the carrier and specifying the atomic ratios thereof (atomic ratios over the entire part of the catalyst including the carrier) to Cu/Fe/Al/Z=1/0.4 to 2.5/0.5 to 5.0/0 to 1.0. A water-soluble copper salt and a water-soluble iron salt and an alkaline material are brought into reaction into the suspension prepd. in such a manner and further, a water-soluble aluminum salt and the alkaline material are brought into reaction. The precipitate is taken from the resulted suspension and is subjected to washing with water, drying and calcining.

    PRODUCTION OF BRANCHED DIMERIZED ALCOHOL

    公开(公告)号:JPH02286638A

    公开(公告)日:1990-11-26

    申请号:JP10887589

    申请日:1989-04-27

    Applicant: KAO CORP

    Abstract: PURPOSE:To obtain in a short time the title compound of good quality in high yield and selectivity by heating condensation of a primary alcohol in the presence of an alkaline catalyst and cocatalyst comprising copper, a 4th period transition metallic element and group III platinum-series element. CONSTITUTION:The objective compound of formula II can be obtained by dehydration condensation of a compound of formula I (R is 1-24C alkyl. cycloalkyl, aryl or aralkyl) in the presence of (A) an alkaline catalyst (pref. KOH) and (B) a cocatalyst comprising copper, a transition metallic element (e.g. Cr, Co, Ni) and platinum-series element (e.g. Pt, Pd) at 180-220 deg.C for 1-2hr. For the catalyst B, the molar ratios are as follows: copper/transition metallic element = (1:9) (9:1) and platinum-series element/(copper + transition metallic element) = 0.001-0.1. The amounts of the catalysts A and B are such as to be 0.3-2.0wt.% and 0.005-0.2wt.% based on the compound of the formula I, respectively. The present compound of the formula II is low in both iodine value and CHO concentration.

    PREPARATION OF BRANCHED DIMERIZED ALCOHOL

    公开(公告)号:JPS58159432A

    公开(公告)日:1983-09-21

    申请号:JP4337082

    申请日:1982-03-18

    Applicant: KAO CORP

    Abstract: PURPOSE:To obtain a branched dimerized alcohol of high quality with a low content of an aldehyde compound and an unsaturated compound in high yield without forming carbonates as a by-product, by subjecting an alcohol to the Guerbet reaction in the presence of a main catalyst of an alkaline substance and copper-nickel as a cocatalyst. CONSTITUTION:An alcohol expressed by formulaI(R is 1-24C alkyl, cycloalkyl, aryl or aralkyl) is subjected to the condensation (the Guerbet reaction) under heating to prepare a branched dimerized alcohol expressed by formula II. In the process, a main catalyst of an alkaline substance, e.g. potassium hydroxide, and copper-nickel as a cocatalyst are used. The weight ratio of metallic atoms between the copper and the nickel is (1:9)-(9:1). According to the method, the reaction can be carried out at a lower temperature, and the formation of carbonates as a by-product is suppressed. Thus, the alkali in the catalyst acts effectively on the main reaction. The carbonates can be easily removed in the post-treatment. The copper-nickel cocatalyst can be recovered for reuse.

Patent Agency Ranking