Process for the carbonylation of an alcohol
    32.
    发明公开
    Process for the carbonylation of an alcohol 失效
    阿尔科霍尔斯

    公开(公告)号:EP0728727A1

    公开(公告)日:1996-08-28

    申请号:EP95304772.7

    申请日:1995-07-07

    IPC分类号: C07C51/12 C07C53/08

    摘要: A process for the carbonylation of a C 1 to C 4 alkyl alcohol and/or a reactive derivative thereof by contacting a C 1 to C 4 alkyl alcohol and/or a reactive derivative thereof with carbon monoxide in a liquid reaction composition in a carbonylation reactor in the presence of (a) a rhodium catalyst, (b) an alkyl halide, and (c) as promoter, at least one of ruthenium and osmium.

    摘要翻译: 在羰基化反应器的液体反应组合物中,在C1-C4烷基醇和/或其活性衍生物存在下使C1-C4烷基醇和/或其活性衍生物与一氧化碳接触,从而羰基化C1-C4烷基醇和/或其活性衍生物的方法 (a)铑催化剂,(b)烷基卤化物,和(c)作为助催化剂,钌和锇中的至少一种。

    Acetonitrile purification via an adsorption-based process
    34.
    发明公开
    Acetonitrile purification via an adsorption-based process 失效
    Verfahren zur Reinigung von Acetonitril durch Adsorptionsverfahren

    公开(公告)号:EP0723954A1

    公开(公告)日:1996-07-31

    申请号:EP95300458.7

    申请日:1995-01-25

    IPC分类号: C07C253/34

    CPC分类号: C07C253/34

    摘要: This invention relates to acetonitrile purification via an adsorption-based process. The process comprises pretreating the acetonitrile containing organic impurities such as unsaturated nitriles with a solid reagent to selectively convert the unsaturated nitriles into products more easily removed and passing the treated acetonitrile through a series of adsorbent beds to remove the resulting products and other impurities present from the acetonitrile.

    摘要翻译: 本发明涉及通过基于吸附的方法的乙腈纯化。 该方法包括用固体试剂预处理含有有机杂质如不饱和腈的乙腈,以选择性地将不饱和腈转化成更容易除去的产物,并使经处理的乙腈通过一系列吸附剂床,以除去所得到的产物和 乙腈。

    Preparation of attrition resistant vanadium-antimony oxide catalysts
    35.
    发明公开
    Preparation of attrition resistant vanadium-antimony oxide catalysts 失效
    Verfahren zur Herstellung abriebfester Vanadium- und Antimonoxydkatalysatoren。

    公开(公告)号:EP0672451A1

    公开(公告)日:1995-09-20

    申请号:EP95301698.7

    申请日:1995-03-13

    IPC分类号: B01J23/22 C07C253/24

    摘要: This invention relates to a process for preparing an attrition resistant vanadium-antimony oxide catalyst by adding to a vanadium-antimony oxide catalyst slurry a lithium compound which upon contact with the aqueous catalyst slurry provides hydroxide, such as lithium hydroxide or lithium carbonate. The process comprises the steps of preparing a catalyst slurry comprising vanadium oxide and antimony oxide, adding the lithium compound to the catalyst slurry, concentrating the catalyst slurry to increase the solids content of the slurry, and drying the catalyst slurry to form attrition resistant particles of catalyst.

    摘要翻译: 通过(a)添加锂cpd制备耐磨耗的钒氧化锑催化剂。 到一个水平 催化剂浆料 钒和氧化锑以提供OH-离子(b)浓缩浆料,和(c)干燥以形成钒 - 氧化锑催化剂(I)的耐磨颗粒。 催化剂本身也被要求保护。

    Process for separating components of a liquid mixture
    36.
    发明公开
    Process for separating components of a liquid mixture 失效
    Verfahren zum Trennen der Komponenten einerflüssigenMischung。

    公开(公告)号:EP0635294A1

    公开(公告)日:1995-01-25

    申请号:EP94305004.7

    申请日:1994-07-07

    IPC分类号: B01D15/00

    CPC分类号: B01D15/08 B01D15/422

    摘要: A process for separating components of a liquid mixture comprising a more adsorbable component (A), for example C₁ to C₆ carboxylic acids, and a less adsorbable component (B), for example water, wherein the relative adsorbity of component (A), component (B) and a desorbent liquid (D) with respect to an adsorbent in an adsorption column is in the order D>A>B, which process comprises the steps in sequence of: (a) passing the liquid mixture through an adsorption column containing the adsorbent and selectively adsorbing component (A) while discharging a stream enriched in component (B); (b) rinsing the adsorbent in the adsorption column after step (a) with desorbent liquid (D) which is immiscible with component (B) whereby component (A) is displaced from adsorbent by desorbent (D) and withdrawing from the adsorption column a first liquid phase stream comprising a mixture of component (A) and component (B) and withdrawing from the adsorption column a second liquid phase stream comprising a mixture of desorbent (D) and component (A); and (c) thermally displacing desorbent (D) from the adsorbent in the adsorption column after step (b).
    Preferably, the desorbent (D) forms an azeotrope with component (B). Suitable adsorbents are highly micro-porous activated carbons.

    摘要翻译: 一种用于分离包含更易吸附的组分(A),例如C1至C6羧酸和较不易吸附的组分(B)例如水的液体混合物的组分的方法,其中组分(A),组分 (B)和解吸液体(D)相对于吸附塔中的吸附剂是D> A> B,该方法包括以下步骤:(a)使液体混合物通过含有 吸附剂和选择性吸附组分(A),同时排出富含组分(B)的物流; (b)在步骤(a)之后,用与组分(B)不混溶的解吸液体(D)漂洗吸附塔中的吸附剂,由此组分(A)通过解吸剂(D)从吸附剂中移出并从吸附塔中取出 第一液相物流,其包含组分(A)和组分(B)的混合物,并从吸附塔排出包含解吸剂(D)和组分(A)的混合物的第二液相物流; 和(c)在步骤(b)之后,从吸附塔中的吸附剂热释放脱附剂(D)。 优选地,解吸剂(D)与组分(B)形成共沸物。 合适的吸附剂是高度微孔活性炭。

    Process for the production of methyl acetate
    38.
    发明公开
    Process for the production of methyl acetate 失效
    生产乙酸甲酯的方法

    公开(公告)号:EP0529868A3

    公开(公告)日:1994-02-23

    申请号:EP92307346.4

    申请日:1992-08-11

    IPC分类号: C07C69/14 C07C67/08

    摘要: In an integrated process for the production of methyl acetate for downstream utilisation in which methanol and acetic acid are reacted in an esterification reactor and the methyl acetate is recovered by distillation and the water recovered by azeotropic distillation, the process is operated in 'standby' mode by shutting off the methanol and acetic acid feeds to the esterification reactor and recycling the methyl acetate and water to the esterification reactor so that the process may be rapidly re-started.

    摘要翻译: 在生产乙酸甲酯用于下游利用的一体化方法中,其中甲醇和乙酸在酯化反应器中反应,并通过蒸馏回收乙酸甲酯并通过共沸蒸馏回收水,该方法以“待用”模式操作 通过关闭进入酯化反应器的甲醇和乙酸进料并将乙酸甲酯和水再循环至酯化反应器,以使该过程可以快速重新开始。

    Process for the production of acetic acid
    39.
    发明公开
    Process for the production of acetic acid 无效
    生产乙酸的方法

    公开(公告)号:EP0573189A1

    公开(公告)日:1993-12-08

    申请号:EP93303977.8

    申请日:1993-05-21

    IPC分类号: C07C53/08 C07C51/44 C07C51/12

    CPC分类号: C07C51/12 C07C51/44 C07C53/08

    摘要: In a process for the production of acetic acid by carbonylation of methanol in the presence of a rhodium carbonylation catalyst, methyl iodide and an iodide salt stabiliser the improvement resides in maintaining a finite concentration of water of up to about 10% by weight and a methyl acetate concentration of at least 2% by weight in the liquid reaction composition and recovering the acetic acid product by passing the liquid reaction composition through a flash zone to produce a vapour fraction which is passed to a single distillation column from which an acetic acid product is removed.

    摘要翻译: 在铑羰基化催化剂,甲基碘和碘化物盐稳定剂存在下通过甲醇羰基化生产乙酸的方法中,改进在于保持有限浓度的高达约10%(重量)的水和甲基 在液体反应组合物中的乙酸根浓度至少为2重量%,并且通过使液体反应组合物通过闪蒸区来回收乙酸产物,以产生蒸气级分,该蒸汽级分被传送到单一蒸馏塔,乙酸产物是 除去。

    Process for the recovery of acetic acid from compositions comprising acetic acid and water
    40.
    发明公开
    Process for the recovery of acetic acid from compositions comprising acetic acid and water 失效
    一种用于乙酸的乙酸和含有水的组合物的恢复过程。

    公开(公告)号:EP0506240A2

    公开(公告)日:1992-09-30

    申请号:EP92301825.3

    申请日:1992-03-04

    IPC分类号: C07C51/44 C07C51/12

    CPC分类号: C07C51/44 C07C53/08

    摘要: The use of an iodide compound of Group IA or Group IIA of the Periodic Table of the Elements or of hydrogen or aluminium to suppress the volatility of water relative to acetic acid in a process for the recovery of acetic acid from a composition comprising acetic acid and water by partitioning and separating the composition into vapour and liquid phases, with the iodide compound in the liquid phase.

    摘要翻译: 使用IA族或元素或氢或铝的元素周期表第IIA族的碘化物化合物的抑制相对于乙酸在乙酸中从组合物中回收的方法水的波动包含乙酸和 通过分割和分离所述组合物进入气相和液相,与在液相中的碘化合物的水。