Method for producing variable mixtures of cyclohexylamine and dicyclohexylamine
    22.
    发明授权
    Method for producing variable mixtures of cyclohexylamine and dicyclohexylamine 失效
    制备环己胺和二环己胺可变混合物的方法

    公开(公告)号:US06335470B1

    公开(公告)日:2002-01-01

    申请号:US09555755

    申请日:2000-06-02

    IPC分类号: C07C20972

    CPC分类号: C07C209/72 C07C211/35

    摘要: Ru/Pd catalysts on supports are used for the preparation of mixtures of substituted or unsubstituted cyclohexylamine and substituted or unsubstituted dicyclohexylamine in variable amounts by catalytic hydrogenation of substituted or unsubstituted aniline at elevated temperature and elevated H2 pressure. These catalysts are characterized in that they contain no halogen or sulphur compounds.

    摘要翻译: 载体上的Ru / Pd催化剂用于通过在升高的温度和升高的H 2压力下通过取代或未取代的苯胺的催化氢化来制备取代或未取代的环己胺和取代或未取代的可变量的二环己胺的混合物。 这些催化剂的特征在于它们不含卤素或硫化合物。

    Process for the hydrogenation of esters of unsaturated fatty acids
    23.
    发明授权
    Process for the hydrogenation of esters of unsaturated fatty acids 失效
    不饱和脂肪酸酯的加氢方法

    公开(公告)号:US5861521A

    公开(公告)日:1999-01-19

    申请号:US546344

    申请日:1995-10-20

    申请人: Gerhard Darsow

    发明人: Gerhard Darsow

    摘要: Esters of unsaturated fatty acids or mixtures thereof can be hydrogenated by a catalysed liquid-phase hydrogenation with hydrogen to give saturated or partially saturated esters of fatty acids or ester mixtures of fatty acids by carrying out the hydrogenation continuously at a pressure of 50 to 350 bar and a reaction temperature of 40 to 150.degree. C. on oxygen-free and support-free shaped bodies which are arranged in a fixed bed and made of pressed powders of elements of the iron subgroup of subgroup VIII of the Periodic Table of the Elements or their alloys with each other or their alloys with elements of subgroup VI; in addition, hydrogenation-inert elements can be present. The shaped bodies have a compressive strength of 20 to 250N on the curved shaped body surface and have an internal surface area of 10 to 90 m.sup.2 /g.

    摘要翻译: 不饱和脂肪酸或其混合物的酯可以通过催化的氢氢化氢化,通过在50至350巴的压力下连续进行氢化得到饱和或部分饱和的脂肪酸酯或脂肪酸的酯混合物 在无氧和无支撑的成形体上的反应温度为40至150℃,它们被布置在固定床中并由元素周期表的第VIII族铁族亚组的元素的压粉制成,或 它们的合金彼此或与VI族元素的合金; 此外,可以存在氢化惰性元素。 成形体在弯曲体形表面上的压缩强度为20〜250N,内表面积为10〜90m2 / g。

    Process for preparing 1-(4-chlorophenyl)-4,4-dimethyl-pentan-3-one
    25.
    发明授权
    Process for preparing 1-(4-chlorophenyl)-4,4-dimethyl-pentan-3-one 失效
    1-(4-氯苯基)-4,4-二甲基 - 戊-3-酮的制备方法

    公开(公告)号:US5639917A

    公开(公告)日:1997-06-17

    申请号:US601913

    申请日:1996-02-15

    申请人: Gerhard Darsow

    发明人: Gerhard Darsow

    CPC分类号: B01J23/85 B01J23/74 C07C45/62

    摘要: There is described a continuous process for preparing 1-(4-chlorophenyl)-4,4-dimethyl-pentan-3-one from 1-(4-chlorophenyl)-4,4-dimethyl-pent-1-en-3-one, wherein the 1-(4-chlorophenyl)-4,4-dimethyl-pent-1-en-3-one is hydrogenated in the liquid phase in alcoholic solution with hydrogen at a pressure of from 50 to 400 bar and a reaction temperature of from 80.degree. to 160.degree. C. over support-free shaped bodies of pressed powders of the elements of the iron subgroup of transition group VIII of the Periodic Table or their alloys or mixtures with one another or their alloys or mixtures with elements of transition group VI, which shaped bodies are arranged in a fixed bed, to give 1-(4-chlorophenyl)-4,4-dimethyl-pentan-3-one. The shaped bodies have a compressive strength of from 20 to 250N and an internal surface area of from 10 to 80 m.sup.2 /g.

    摘要翻译: 描述了从1-(4-氯苯基)-4,4-二甲基 - 戊-1-烯-3-酮制备1-(4-氯苯基)-4,4-二甲基 - 戊-3-酮的连续方法, 其中1-(4-氯苯基)-4,4-二甲基 - 戊-1-烯-3-酮在液相中在氢气中在50〜400巴的压力下在醇溶液中氢化,反应 温度为80°至160°C,在无支撑的成形体的周期表的过渡组VIII的铁亚组的元素的压制粉末或它们的合金或彼此的混合物或其合金或混合物与 过渡组VI,将成形体排列在固定床中,得到1-(4-氯苯基)-4,4-二甲基 - 戊-3-酮。 成型体的抗压强度为20〜250N,内表面积为10〜80m2 / g。

    Process for the preparation of hydrooxydiphenyls
    27.
    发明授权
    Process for the preparation of hydrooxydiphenyls 失效
    制备氢化二苯乙烯的方法

    公开(公告)号:US5248840A

    公开(公告)日:1993-09-28

    申请号:US950619

    申请日:1992-09-24

    CPC分类号: C07C37/07

    摘要: To prepare hydroxydiphenyls, a compound or a mixture of several compounds consisting of completely or partly hydrogenated hydroxydiphenyl is dehydrogenated catalytically in the gas phase, a catalyst being employed which comprises, as the active constituents, a combination of rhodium and one or more other platinum metal(s) from the group comprising platinum, palladium, ruthenium and iridium, and which comprises, as promoters, one or more alkali metal hydroxides and/or alkali metal sulphates, the support of which comprises chromium and manganese.

    摘要翻译: 为了制备羟基二苯,将由完全或部分氢化的羟基二苯组成的化合物或几种化合物的混合物在气相中催化脱氢,使用的催化剂包括作为活性组分的铑和一种或多种其它铂金属的组合 其包含铂,钯,钌和铱的基团,并且其包含作为助催化剂的一种或多种碱金属氢氧化物和/或碱金属硫酸盐,其载体包含铬和锰。

    Process for the preparation of a mixture of
.alpha.-D-glucopyranosido-1,6-mannitol and
.alpha.-D-glucopyranosido-1,6-sorbitol from
.alpha.-D-glucopyranosido-1,6-fructose
    28.
    发明授权
    Process for the preparation of a mixture of .alpha.-D-glucopyranosido-1,6-mannitol and .alpha.-D-glucopyranosido-1,6-sorbitol from .alpha.-D-glucopyranosido-1,6-fructose 失效
    从α-D-吡喃葡萄糖苷-1,6-果糖制备α-D-吡喃葡萄糖苷-1,6-甘露糖醇和α-D-吡喃葡萄糖苷-1,6-山梨醇的混合物的方法

    公开(公告)号:US4684720A

    公开(公告)日:1987-08-04

    申请号:US692600

    申请日:1985-01-18

    CPC分类号: C07H15/04 B01J23/40 B01J23/74

    摘要: In the preparation of a mixture of .alpha.-D-glucopyranosido-1,6-mannitol and .alpha.-D-glucopyranoside-1,6-sorbitol by catalytically hydrogenating .alpha.-D-glucopyranosido-1,6-fructose in aqueous solution with hydrogen under increased pressure and at elevated temperature, the improvement which comprises effecting the hydrogenation continuously over a fixed bed of support-free shaped pieces of elements of sub-group 8 of the periodic table, which serve as the hydrogenation catalyst. The product can be directly used as a sweetener, without purification. The catalyst life is extremely long.

    摘要翻译: 在α-D-吡喃葡萄糖苷-1,6-甘露糖醇和α-D-吡喃葡萄糖苷-1,6-山梨糖醇的混合物中,通过在水溶液中氢化α-D-吡喃葡糖苷-1,6-果糖 增加的压力和升高的温度,其改进包括在用作氢化催化剂的元素周期表的第8族元素的无支撑的成形的元件的固定床上连续进行氢化。 该产品可直接用作甜味剂,无需纯化。 催化剂寿命非常长。

    Branched aromatic polyaryl-ether sulphones
    29.
    发明授权
    Branched aromatic polyaryl-ether sulphones 失效
    支链芳香聚醚醚砜

    公开(公告)号:US3960815A

    公开(公告)日:1976-06-01

    申请号:US437643

    申请日:1974-01-29

    IPC分类号: C08G75/20 C08G75/23

    CPC分类号: C08G75/23 C08G75/20

    摘要: A branched, high molecular-weight polyaryl-ether sulphone which is the reaction product of approximately equimolar amounts of an aromatic dialkali metal bishydroxylate and a bis-(halogen-aryl) compound, whose aryl nuclei are linked by sulphonyl groups, and about 0.01 to about 2 mol %, based on the bishydroxylate or bis-(4-halogenaryl) compound, of an aromatic compound having at least three aromatically linked alkali metal hydroxylate substitutents and/or of a halogenaryl compound having at least three aryl-linked halogen substituents and which is capable of substitution under the reaction conditions of polyaryl-ether sulphone manufacture.

    摘要翻译: 作为大约等摩尔量的芳族二碱金属双羟基苯甲酸酯和双(卤素 - 芳基)化合物的反应产物的支链高分子量聚芳基醚砜,其芳基核子通过磺酰基连接,并且约0.01至 基于二氯化物或双 - (4-卤代芳基)化合物的具有至少三个芳族化合物的碱金属羟基化物取代基的芳族化合物和/或具有至少三个芳基连接的卤素取代基的卤素芳基化合物的约2摩尔% 其能够在聚芳基醚砜制造的反应条件下进行取代。

    Process for the hydrogenation of sugars
    30.
    发明授权
    Process for the hydrogenation of sugars 失效
    糖的氢化工艺

    公开(公告)号:US6124443A

    公开(公告)日:2000-09-26

    申请号:US7546

    申请日:1998-01-15

    申请人: Gerhard Darsow

    发明人: Gerhard Darsow

    摘要: Epimer-free sugar alcohols can be prepared from the corresponding sugars by catalytic hydrogenation with hydrogen in aqueous solution, the hydrogenation being carried out continuously at a hydrogen pressure of 100 to 400 bar and a reaction temperature of 20 to 70.degree. C. on support-free shaped bodies which are arranged in a fixed bed and are made of pressed powders of metals or alloys of the elements of the iron subgroup of subgroup VIII of the Periodic Table of the Elements together with elements of subgroup IV and/or V. The shaped bodies have a compressive strength of 20 to 220 N and an internal surface area of 10 to 100 m.sup.2 /g.

    摘要翻译: 不对称不含糖的糖醇可以通过在水溶液中用氢气进行催化氢化,从相应的糖制备,氢化在100-400巴的氢气压力和20-70℃的反应温度下在载体 - 自由成形体,其布置在固定床中,并且由元素周期表第VIII族铁族亚组的元素的金属或合金的压制粉末以及亚组IV和/或V的元素制成。成形 体的抗压强度为20〜220N,内表面积为10〜100m2 / g。