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    Process for the preparation of a mixture of cyclohexylamine and dicyclohexylamine
    3.
    发明授权
    Process for the preparation of a mixture of cyclohexylamine and dicyclohexylamine 失效
    制备环己胺和二环己胺的混合物的方法

    公开(公告)号：US5371294A

    公开(公告)日：1994-12-06

    申请号：US955957

    申请日：1992-10-02

    申请人： Otto Immel ,  Hans-Josef Buysch ,  Gerhard Darsow

    发明人： Otto Immel ,  Hans-Josef Buysch ,  Gerhard Darsow

    IPC分类号： B01J23/648 ,  C07B61/00 ,  C07C209/16 ,  C07C209/72 ,  C07C211/35 ,  C07C209/18

    CPC分类号： C07C209/72 ,  C07C209/16

    摘要： Cyclohexylamine and dicyclohexylamine can be prepared as a mixture with one another by reaction of phenol with aniline, ammonia or a mixture of aniline and ammonia in the presence of hydrogen over a catalyst, the reaction being carried out according to the invention over a palladium catalyst which has a support of niobic acid or tantalic acid or a mixture of niobic acid and tantalic acid or a support containing such acids. The reaction is carried out at 100.degree.-220.degree. C. under an H.sub.2 partial pressure of 0.5-500 bar.

    摘要翻译： 环己胺和二环己基胺可以通过在氢气存在下在催化剂上与苯胺，氨或苯胺和氨的混合物的反应彼此混合来制备，该反应根据本发明通过钯催化剂进行 具有铌酸或钽酸或铌酸和钽酸的混合物或含有这些酸的载体的载体。 反应在100-220℃，0.5-500巴的H 2分压下进行。

    Process for the preparation of d,1-menthol
    5.
    发明授权
    Process for the preparation of d,1-menthol 失效
    制备d，1-薄荷醇的方法

    公开(公告)号：US5300706A

    公开(公告)日：1994-04-05

    申请号：US28850

    申请日：1993-03-10

    申请人： Otto Immel ,  Gerhard Darsow ,  Hans-Josef Buysch

    发明人： Otto Immel ,  Gerhard Darsow ,  Hans-Josef Buysch

    IPC分类号： B01J23/656 ,  B01J27/055 ,  C07B61/00 ,  C07C29/20 ,  C07C35/12 ,  C07C29/00 ,  C07C29/17

    CPC分类号： C07C35/12

    摘要： A process for the preparation of d,l-menthol by catalytic hydrogenation of aromatic or partly hydrogenated cyclic compounds which have the carbon skeleton of menthol having at least one double bond and are substituted by oxygen in the 3-position relative to the methyl group, with simultaneous rearrangement of optically active or inactive stereoisomers of menthol at elevated temperature and under pressure is described. The hydrogenation, which is to be carried out continuously, is carried out on a fixed bed catalyst which comprises, as active constituents, palladium, ruthenium or rhodium or a mixture of these elements, and comprises alkali metal hydroxides and/or alkali metal sulphates as promoters; the support for this catalyst is doped with a rare earth metal and manganese.

    摘要翻译： 一种通过芳香族或部分氢化的环状化合物的催化氢化制备d，l-薄荷醇的方法，其具有至少一个双键的薄荷醇的碳骨架并相对于甲基在3-位上被氧取代， 描述了在升高的温度和压力下同时重新配置薄荷醇的光学活性或无活性立体异构体。 要连续进行的氢化在固定床催化剂上进行，固定床催化剂包含作为活性组分的钯，钌或铑或这些元素的混合物，并且包括碱金属氢氧化物和/或碱金属硫酸盐作为 发起人; 该催化剂的载体掺杂有稀土金属和锰。

    Process for producing aliphatic diols
    9.
    发明授权
    Process for producing aliphatic diols 失效
    脂肪族二醇的制造方法

    公开(公告)号：US6037504A

    公开(公告)日：2000-03-14

    申请号：US204903

    申请日：1998-12-03

    申请人： Gerhard Darsow ,  Wolfgang Dummer ,  Wilfried Niemeier

    发明人： Gerhard Darsow ,  Wolfgang Dummer ,  Wilfried Niemeier

    IPC分类号： B01J23/86 ,  B01J23/88 ,  B01J23/889 ,  C07B61/00 ,  C07C29/149 ,  C07C31/20 ,  C07C67/08 ,  C07C29/14

    CPC分类号： C07C29/149 ,  B01J23/8892 ,  Y02P20/52

    摘要： In a process for producing aliphatic .alpha.,.omega.-diols comprising 4 to 12 C atoms from aliphatic .alpha.,.omega.-dicarboxylic acids comprising 4 to 12 C atoms, an oligoester of average chain length n=3 to n=4.5 and with an acid number of 40 to 60 mg KOH/g reaction mixture is first formed from a diol and a dicarboxylic acid, which oligoester is thereafter catalytically hydrogenated in the liquid phase. Hydrogenation is carried out continuously at 180 to 250.degree. C. and at an H.sub.2 pressure of 100 to 400 bar, over a pelletised catalyst which is free from Zn oxide and which comprises pressed powders of Cu, Mn and Al oxides with a content of at least one oxide of metals of subgroup VI of the periodic table of the elements (Mendeleev). The amount of H.sub.2 is 20 to 100 times the amount required stoichiometrically.

    摘要翻译： 在由4-12个碳原子的脂肪族α，ω-二羧酸组成的含有4-12个碳原子的脂肪族α，ω-二醇的制备方法中，平均链长n = 3〜n = 4.5，酸值为 40至60mg KOH / g反应混合物首先由二醇和二羧酸形成，然后将低聚酯在液相中催化氢化。 在180-250℃，在100-400巴的H 2压力下，在不含Zn氧化物的颗粒状催化剂上连续进行氢化，其包含Cu，Mn和Al氧化物的压制粉末，其含量为 元素周期表第VI族金属的最少一种金属（Mendeleev）。 H2的量为化学计量所需量的20-100倍。

    Process for preparing a mixture of cyclohexylamine and dicyclohexylamine
    10.
    发明授权
    Process for preparing a mixture of cyclohexylamine and dicyclohexylamine 失效
    制备环己胺和二环己胺的混合物的方法

    公开(公告)号：US5705700A

    公开(公告)日：1998-01-06

    申请号：US755512

    申请日：1996-11-22

    申请人： Gerhard Darsow ,  Gerd-Michael Petruck ,  Wilfried Niemeier

    发明人： Gerhard Darsow ,  Gerd-Michael Petruck ,  Wilfried Niemeier

    IPC分类号： B01J23/889 ,  C07B61/00 ,  C07C209/72 ,  C07C211/35

    CPC分类号： C07C209/72

    摘要： To prepare a mixture of cyclohexylamine and dicyclohexylamine by catalytic hydrogenation of aniline at elevated temperature and elevated H.sub.2 pressure, the catalyst system used comprises two reduced, unsupported catalysts A and B which are prepared from pressed element (hydr)oxide powders. Catalyst A comprises one or more of Fe, Co, Ni, also Mn, Cu and one or more of Ca, Sr, Ba. Catalyst B comprises one or more of Fe, Co, Ni, also Mn, Si and Mg.

    摘要翻译： 为了通过在升高的温度和升高的H 2压力下苯胺的催化氢化来制备环己胺和二环己胺的混合物，所用的催化剂体系包括由压制元素（氢氧化物）粉末制备的两种还原的未负载的催化剂A和B. 催化剂A包含Fe，Co，Ni中的一种或多种，​​也包括Mn，Cu和Ca，Sr，Ba中的一种或多种。 催化剂B包含Fe，Co，Ni中的一种或多种，​​Mn还包括Mn，Si和Mg。