METHOD FOR PRODUCING LOW-ODOR N-BUTANE
    1.
    发明申请
    METHOD FOR PRODUCING LOW-ODOR N-BUTANE 有权
    生产低气味N-丁酸的方法

    公开(公告)号:US20120136186A1

    公开(公告)日:2012-05-31

    申请号:US13381735

    申请日:2010-05-21

    IPC分类号: C07C5/03

    CPC分类号: C07C9/10 C07C7/10 C07C7/163

    摘要: The invention relates to a method for producing low-odor n-butane by catalytic hydrogenation of a feed mixture. The aim of the invention is to provide such a method, wherein the feed material, in addition to n-butane, n-butene and up to 1 mass % formic acid and/or up to 1 mass % pentanals and/or up to 0.5 mass % pentanols, also comprises carbon monoxide. The aim is achieved by treating the feed mixture in the temperature range of 15 to 120° C. with an aqueous solution of an alkali metal or alkaline earth metal hydroxide in the concentration range of 0.5 to 30 mass % and subsequently subjecting the feed mixture to the catalytic hydrogenation.

    摘要翻译: 本发明涉及通过进料混合物的催化氢化生产低气味正丁烷的方法。 本发明的目的是提供这样的方法,其中除了正丁烷,正丁烯和至多1质量%的甲酸和/或至多1质量%的戊醛和/或至多0.5的进料之外, 质量%戊醇还含有一氧化碳。 目的是通过在0.5〜30质量%的浓度范围内用碱金属或碱土金属氢氧化物的水溶液处理15〜120℃的温度范围内的进料混合物,然后将进料混合物 催化氢化。

    Process for the hydrogenation of hydroformylation mixtures
    3.
    发明授权
    Process for the hydrogenation of hydroformylation mixtures 失效
    加氢甲酰化混合物氢化的方法

    公开(公告)号:US06680414B2

    公开(公告)日:2004-01-20

    申请号:US10014517

    申请日:2001-12-14

    IPC分类号: C07C2700

    CPC分类号: C07C29/141 C07C31/125

    摘要: The present invention provides a process, which includes: in a homogeneous liquid phase including water, and over a fixed-bed catalyst, continuously hydrogenating at least one hydroformylation product obtained from a hydroformylation of one or more C4-16 olefins to produce at least one output mixture; wherein the fixed-bed catalyst includes at least one element of transition group eight of the Periodic Table of the Elements; wherein the output mixture includes at least one corresponding alcohol and from 0.05 to 10% by weight of water; and wherein in a steady-state operation of the process, from 3 to 50% more hydrogen is fed to the hydrogenation than is consumed by the hydrogenation.

    摘要翻译: 本发明提供了一种方法,其包括:在均匀的液相中包括水,并且在固定床催化剂上,连续氢化由一种或多种C 4-6-16烯烃的加氢甲酰化得到的至少一种加氢甲酰化产物,以产生至少一种 输出混合物;其中固定床催化剂包括元素周期表第八族中至少一种元素;其中所述输出混合物包括至少一种相应的醇和0.05至10重量%的水;并且其中在 该方法的稳态操作,比氢化消耗更多的氢被加入到氢化中3至50%。

    PROCESS FOR PREPARING 3-METHYLBUT-1-ENE
    5.
    发明申请
    PROCESS FOR PREPARING 3-METHYLBUT-1-ENE 有权
    制备3-甲基-1-环己烯的方法

    公开(公告)号:US20090163687A1

    公开(公告)日:2009-06-25

    申请号:US12300224

    申请日:2007-05-11

    IPC分类号: C08F110/08 C07C5/27

    CPC分类号: C07C1/24 Y02P20/127 C07C11/10

    摘要: The present invention relates to the preparation of 3-methylbut-1-ene from a hydrocarbon stream I comprising isobutene by feeding a hydrocarbon stream II which comprises at least 70% by mass of isobutene in relation to the olefins present in the hydrocarbon stream and which has been obtained from hydrocarbon stream I or is identical to it to a process step for hydroformylation in which isobutene is hydroformylated in the presence of a rhodium catalyst, hydrogenating the aldehyde obtained from the hydroformylation of isobutene to the corresponding alcohol and preparing 3-methylbut-1-ene by water elimination from the alcohol.

    摘要翻译: 本发明涉及从包含异丁烯的烃流I中制备3-甲基丁-1-烯,该烃流包含相对于存在于烃流中的烯烃至少70质量%的异丁烯的烃流II,其中 已经从烃流I获得或者与加氢甲酰化的方法步骤相同,其中异丁烯在铑催化剂的存在下被加氢甲酰化,氢化从异丁烯的加氢甲酰化得到的醛到相应的醇,并制备3-甲基丁酸, 1-ene由酒精消除水分。

    Process for the hydroformylation of olefins
    8.
    发明授权
    Process for the hydroformylation of olefins 有权
    烯烃加氢甲酰化方法

    公开(公告)号:US06555716B2

    公开(公告)日:2003-04-29

    申请号:US09725518

    申请日:2000-11-30

    IPC分类号: C07C4500

    CPC分类号: C07C45/50 C07C47/02

    摘要: Aldehydes are prepared in a hydroformylation apparatus by the multiphase hydroformylation reaction of one or more olefins with hydrogen and carbon monoxide, where the continuous phase contains a solvent mixture and the hydroformylation catalyst is present in the continuous phase, at least one olefin is present in the dispersed phase, and the loading factor of the tube reactor is greater than or equal to 0.8.

    摘要翻译: 醛通过一种或多种烯烃与氢气和一氧化碳的多相加氢甲酰化反应在加氢甲酰化装置中制备,其中连续相含有溶剂混合物,加氢甲酰化催化剂存在于连续相中,至少一种烯烃存在于 分散相,管式反应器的负载系数大于或等于0.8。

    Process for the dissociation of MTBE
    9.
    发明授权
    Process for the dissociation of MTBE 有权
    MTBE解离过程

    公开(公告)号:US07919662B2

    公开(公告)日:2011-04-05

    申请号:US11838340

    申请日:2007-08-14

    IPC分类号: C07C1/20

    摘要: Isobutene is prepared by dissociation of MTBE in the gas phase, by a) fractional distillation of an MTBE-containing stream comprising feed MTBE (I) and a recycle stream (VIII) to give an MTBE-containing overhead stream (II) and a bottom stream (III) having a boiling point higher than MTBE, b) catalytic dissociation of the overhead stream (II) obtained in step a) to give a dissociation product (IV), c) separation by distillation of the dissociation product (IV) obtained in step b) into an overhead stream (V) comprising more than 90% by mass of isobutene and a bottom stream (VI) comprising diisobutene, MTBE and more than 50% of the methanol present in the dissociation product (IV), d) fractional distillation of the bottom stream obtained in step c) under conditions under which the methanol is obtained as bottom product (VII) and more than 99% of the MTBE is obtained in the overhead product (VIII), and e) recirculation of the overhead product (VIII) to step a).

    摘要翻译: 通过a)分馏含有进料MTBE(I)和再循环物流(VIII)的含MTBE的物流,得到含MTBE的塔顶馏出物流(II)和底部 沸点高于MTBE的流(III),b)步骤a)中获得的塔顶馏出物流(II)的催化解离,得到解离产物(IV),c)通过蒸馏分离获得的解离产物(IV) 在步骤b)中进入包含大于90质量%的异丁烯的塔顶物流(V)和包含二异丁烯,MTBE和存在于解离产物(IV)中的甲醇的50%以上的底部物流(VI),d) 在塔顶馏出物(VIII)中获得步骤c)中获得的底部物流的分馏,其中获得作为底部产物(VII)的甲醇和高于99%的MTBE的馏分,和e)塔顶馏出物的再循环 产物(VIII)至步骤a)。