Process for continuous hydrogenation or hydrogenating amination
    3.
    发明授权
    Process for continuous hydrogenation or hydrogenating amination 失效
    连续氢化或氢化胺化的方法

    公开(公告)号:US08557985B2

    公开(公告)日:2013-10-15

    申请号:US13423956

    申请日:2012-03-19

    摘要: A process continuously hydrogenating unsaturated compounds, in which particles of a first hydrogenation catalyst are suspended in a liquid phase in which an unsaturated compound is dissolved, the liquid phase, in the presence of a hydrogenous gas at a first partial hydrogen pressure and at a first temperature, is conducted through a packed bubble column reactor in cocurrent counter to the direction of gravity, the effluent from the bubble column reactor is sent to a gas-liquid separation, the liquid phase is sent to a crossfiltration to obtain a retentate and a filtrate, the retentate is recycled into the bubble column reactor and the filtrate, in the presence of a hydrogenous gas at a second partial hydrogen pressure and at a second temperature, is passed over a bed of a second hydrogenation catalyst, the second partial hydrogen pressure is at least 10 bar higher than the first partial hydrogen pressure.

    摘要翻译: 将第一氢化催化剂的颗粒悬浮在其中溶解有不饱和化合物的液相中的不饱和化合物的液相,在第一部分氢气压力下的氢气存在下的液相, 温度,通过与泡沫塔反应器并流反向并流并通过气泡塔反应器进行气液分离,将液相送至交叉过滤以获得滞留物和滤液 ,将渗余物再循环到泡罩塔反应器中,并且在第二部分氢气压力和第二温度下在氢气存在下将滤液通过第二氢化催化剂床,第二部分氢气压力为 比第一部分氢气压力高至少10巴。

    Process for continuous hydrogenation or hydrogenating amination
    6.
    发明授权
    Process for continuous hydrogenation or hydrogenating amination 有权
    连续氢化或氢化胺化的方法

    公开(公告)号:US08163963B2

    公开(公告)日:2012-04-24

    申请号:US12090377

    申请日:2006-10-16

    IPC分类号: C07C45/00

    摘要: A process is described for continuously hydrogenating unsaturated compounds, in which particles of a first hydrogenation catalyst are suspended in a liquid phase in which an unsaturated compound is dissolved, the liquid phase, in the presence of a hydrogenous gas at a first partial hydrogen pressure and at a first temperature, is conducted through a packed bubble column reactor in cocurrent counter to the direction of gravity, the effluent from the bubble column reactor is sent to a gas-liquid separation, the liquid phase is sent to a crossfiltration to obtain a retentate and a filtrate, the retentate is recycled into the bubble column reactor and the filtrate, in the presence of a hydrogenous gas at a second partial hydrogen pressure and at a second temperature, is passed over a bed of a second hydrogenation catalyst, wherein the second partial hydrogen pressure is at least 10 bar higher than the first partial hydrogen pressure.

    摘要翻译: 描述了在第一部分氢气压力下在氢气存在下将不饱和化合物连续氢化的方法,其中第一氢化催化剂的颗粒悬浮在其中溶解不饱和化合物的液相中,液相,以及 在第一个温度下,通过气泡塔反应器与重力方向并流,将来自泡罩塔反应器的流出物送入气液分离,将液相送至交叉过滤,得到滞留物 和滤液,将滞留物再循环到泡罩塔反应器中,并且在第二部分氢气压力和第二温度下在氢气存在下将滤液通过第二氢化催化剂床,其中第二 部分氢气压力比第一部分氢气压力高至少10巴。

    Selective liquid phase hydrogenation of carbonyl compounds to give the corresponding alcohols in the presence of a Pt/ZnO catalyst
    9.
    发明授权
    Selective liquid phase hydrogenation of carbonyl compounds to give the corresponding alcohols in the presence of a Pt/ZnO catalyst 失效
    在Pt / ZnO催化剂存在下,羰基化合物的选择性液相氢化得到相应的醇

    公开(公告)号:US06743956B1

    公开(公告)日:2004-06-01

    申请号:US10309255

    申请日:2002-12-04

    IPC分类号: C07C2700

    CPC分类号: C07C29/141 C07C33/02

    摘要: The present invention relates to a process for selective liquid phase hydrogenation of carbonyl compounds of the general formula I, where R1 and R2 are identical or different and are each independently hydrogen or a saturated or a mono- or polyunsaturated straight-chain or branched, optionally substituted C1-C20-alkyl radical, an optionally substituted aryl radical or an optionally substituted heterocyclic group, to give the corresponding alcohols of the general formula II where R1 and R2 are each as defined above, in the presence of hydrogen and a Pt/ZnO catalyst.

    摘要翻译: 本发明涉及通式I的羰基化合物的选择性液相氢化方法,其中R 1和R 2相同或不同,并且各自独立地为氢或饱和或单或多不饱和直链, 链或支链,任选取代的C 1 -C 20烷基,任选取代的芳基或任选取代的杂环基,得到相应的通式II的醇,其中R 1和R 2各自如上所定义, 在氢气和Pt / ZnO催化剂的存在下。

    Preparation of C10-C30-alkenes by partial hydrogenation of alkynes over fixed-bed supported palladium catalysts
    10.
    发明授权
    Preparation of C10-C30-alkenes by partial hydrogenation of alkynes over fixed-bed supported palladium catalysts 失效
    通过固定床负载的钯催化剂上的炔进行部分氢化制备C10-C30-烯烃

    公开(公告)号:US06365790B2

    公开(公告)日:2002-04-02

    申请号:US09734024

    申请日:2000-12-12

    IPC分类号: C07C2900

    摘要: Alkenes are prepared by partial hydrogenation of alkynes in the liquid phase at from 20 to 250° C. and hydrogen partial pressures of from 0.3 to 200 bar over fixed-bed supported palladium catalysts which are obtainable by heating the support material in the air, cooling, applying a palladium compound and, if required, additionally other metal ions for doping purposes, molding and processing to give monolithic catalyst elements, by a process in which A) alkynes of 10 to 30 carbon atoms are used as starting compounds, B) the palladium compound and, if required, the other metal ions are applied to the support material by impregnation of the heated and cooled support material with a solution containing palladium salts and, if required, other metal ions and subsequent drying, and C) from 10 to 2000 ppm of carbon monoxide (CO) are added to the hydrogenation gas or a corresponding amount of CO is allowed to form in the liquid phase by slight decomposition of a compound which is added to the reaction mixture and eliminates CO under the reaction conditions. The process is particularly advantageous if the partial hydrogenation is carried out in a tube reactor by the trickle-bed or liquid phase procedure with product recycling at cross-sectional loadings of from 20 to 500 m3/m2*h. The process is particularly suitable for the preparation of 3,7,11,15-tetramethyl-1-hexadecen-3-ol (isophytol), 3,7,11-trimethyl-l-dodecen-3-ol (tetrahydronerolidol), 3,7,11-trimethyl-1,4-dodecadien-3-ol, 3,7,11-trimethyl-1,6-dodecadien-3-ol (dihydronerolidol), 3,7-dimethyloct-1,6-dien-3-ol or 3,7-dimethyloct-1-en-3-ol from the corresponding alkynes.

    摘要翻译: 烯烃通过液相中炔烃在20至250℃的部分氢化和固定床负载的钯催化剂的0.3至200巴的氢分压来制备,其可通过加热空气中的载体材料,冷却 使用钯化合物,另外还需要另外的金属离子用于掺杂目的,通过使用10-30个碳原子的炔烃作为起始化合物的方法,模塑和加工以得到整体式催化剂元素,B)钯 如果需要,另外的金属离子通过用含有钯盐的溶液浸渍加热和冷却的载体材料以及如果需要的话其它金属离子并随后干燥而被施加到载体材料上,C)为10-2000ppm 的一氧化碳(CO)加入到氢化气体中,或者相应量的CO在液相中形成,通过轻微分解添加到真空中的化合物 并且在反应条件下消除CO。如果部分氢化在管式反应器中通过滴流床或液相方法进行,则该方法是特别有利的,其中产物回收的横截面负荷为20-500m 3 / m2 * h。 该方法特别适用于制备3,7,11,15-四甲基-1-十六碳烯-3-醇(异山梨糖醇),3,7,11-三甲基-1-十二碳烯-3-醇(四氢化吗啉醇),3 ,7,11-三甲基-1,4-十二碳二烯-3-醇,3,7,11-三甲基-1,6-十二碳二烯-3-醇(二氢吗啉醇),3,7-二甲基辛-1,6-二烯 - 3-醇或3,7-二甲基辛-1-烯-3-醇。