Dividing wall column
    21.
    发明授权
    Dividing wall column 失效
    分隔墙柱

    公开(公告)号:US06958111B2

    公开(公告)日:2005-10-25

    申请号:US09847299

    申请日:2001-05-03

    CPC classification number: B01D3/141 B01D3/146

    Abstract: In a dividing wall column comprising as segments a) an upper column region (6), b) an inflow section (7), c) an offtake section (8) and d) a lower column region (9), the inflow section b) (7) and the offtake section c) (8) are separated from one another laterally by a dividing wall (10) fixed in the column and the dividing wall (10) is located between the upper column region a) (6) and the lower column region d) (9). The present invention provides for the dividing wall (10) to be constructed at least partly of an elastic material, the dividing wall (10) to have a slightly overdimensional width and the dividing wall (10) to be fixed in the column by the dividing wall exercising an elastic recovery force on the interior wall of the column. The dividing wall can easily be installed in, in particular, relatively small columns.

    Abstract translation: 在分隔壁柱中,包括a)上列区域(6),b)流入部分(7),c)脱出部分(8)和d)下部列区域(9),流入部分b )(7)和收拢部分c)(8)通过固定在塔中的分隔壁(10)横向隔开,分隔壁(10)位于上列区域a)(6)和 下列区域d)(9)。 本发明提供了至少部分地由弹性材料构成的分隔壁(10),该分隔壁(10)具有稍微过度的宽度,并且该分隔壁(10)通过分开固定在该塔中 墙壁在柱的内壁上弹性恢复力。 分隔壁可以容易地安装在特别是相对较小的柱中。

    Method for the production of cyclohexanol from benzene
    23.
    发明授权
    Method for the production of cyclohexanol from benzene 失效
    从苯生产环己醇的方法

    公开(公告)号:US06943274B2

    公开(公告)日:2005-09-13

    申请号:US10505705

    申请日:2003-02-28

    CPC classification number: C07C29/04 C07C2601/14 C07C35/08

    Abstract: A process for preparing cyclohexanol from benzene by: a) preparing cyclohexene by hydrogenating benzene in the presence of a catalyst, and b) preparing cyclohexanol by hydrating the cyclohexene in the presence of a catalyst, comprises: carrying out steps a) and b) in a reaction facility which has a bottom region at the lower end, a top region at the upper end, and a reaction zone between the top region and the bottom region which contains the catalyst according to steps a) and b), evaporating a portion of the benzene using the heat of reaction in the reaction zone, condensing it in the top region and returning it to the reaction zone, and withdrawing a reaction mixture containing cyclohexanol in the bottom region.

    Abstract translation: 一种通过以下步骤由苯制备环己醇的方法:a)在催化剂存在下,通过氢化苯来制备环己烯,和b)通过在催化剂存在下使环己烯水合制备环己醇,包括:进行步骤a)和b) 具有下端的底部区域,上端的顶部区域和顶部区域和底部区域之间的反应区域的反应设备,其包含根据步骤a)和b)的催化剂,蒸发一部分 苯在反应区中使用反应热,在顶部区域冷凝并将其返回到反应区,并在底部区域中抽出含有环己醇的反应混合物。

    Preparation of 1,3-diols
    24.
    发明授权
    Preparation of 1,3-diols 失效
    1,3-二醇的制备

    公开(公告)号:US06380443B1

    公开(公告)日:2002-04-30

    申请号:US09677862

    申请日:2000-10-03

    Abstract: A process for preparing 1,3-diols having 6 or more carbon atoms comprises a) provision of at least one alkanal having at least three carbon atoms; b) thermal treatment of the alkanal in the absence of a basic catalyst; c) hydrogenation of the aldol addition product formed in step b); and d) isolation of the 1,3-diol obtained. The process of the present invention makes it possible to prepare 1,3-diols simply and inexpensively.

    Abstract translation: 制备具有6个或更多个碳原子的1,3-二醇的方法包括:a)提供至少一种具有至少三个碳原子的链烷烃; b)在没有碱性催化剂的情况下热处理链烷烃; c)步骤b)中形成的醛醇加成产物的氢化; 和d)所获得的1,3-二醇的分离。本发明的方法使得可以简单且廉价地制备1,3-二醇。

    Isolation of &agr;-ethynyl carbinols by distillation
    25.
    发明授权
    Isolation of &agr;-ethynyl carbinols by distillation 失效
    通过蒸馏分离α-乙炔基甲醇

    公开(公告)号:US06316680B1

    公开(公告)日:2001-11-13

    申请号:US09455161

    申请日:1999-12-06

    CPC classification number: C07C29/80 C07C33/042 C07C33/048

    Abstract: In a process for isolating &agr;-ethynyl carbinols from the liquid reaction mixture from the addition of acetylene onto &agr;,&bgr;-unsaturated carbonyl compounds by distillation, the distillation is carried out continuously, the feed stream is introduced into the middle section of a distillation column (K), the major part of the water is distilled off azeotropically together with the solvent at the top of the column, and the &agr;-ethynyl carbinol target product is taken off below the feed point to the column.

    Abstract translation: 在通过蒸馏从乙炔加入到α,β-不饱和羰基化合物中的液体反应混合物中分离α-乙炔基甲醇的方法中,蒸馏连续进行,将进料流引入蒸馏塔的中间部分 (K)中,将大部分水与塔顶部的溶剂一起共沸蒸馏,并将α-乙炔基甲醇目标产物从柱的进料点以下取出。

    Preparation of hydroxybenzaldehydes
    27.
    发明授权
    Preparation of hydroxybenzaldehydes 失效
    羟基苯甲醛的制备

    公开(公告)号:US4967013A

    公开(公告)日:1990-10-30

    申请号:US346714

    申请日:1989-05-03

    CPC classification number: C07C45/673 C07C47/565 Y02P20/582

    Abstract: Hydroxybenzaldehydes of the formula (I) are prepared from a benzaldehyde of the formula (II) or its acetal, in which R.sup.1 in the R.sup.1 O-phenyl ether group is an alkyl, cycloalkyl, alkylcycloalkyl or alkylaryl radical, R.sup.2 is H or OH or is identical to R.sup.1 and one or more R.sup.1 O-phenyl ether groups are ortho, meta or para to the aldehyde function, by a process in which a benzaldehyde of the formula (II) or its acetal, in which R.sup.1 and R.sup.2 have the abovementioned meanings and one or more R.sup.1 O-phenyl ether groups occupy the abovementioned position with respect to the aldehyde function, is converted into a hydroxybenzaldehyde of the formula (I) in the presence of water over a zeolite as a heterogeneous catalyst. ##STR1## The catalysts used are, in particular, zeolites of the pentasil type.

    Abstract translation: 式(I)的羟基苯甲醛由式(II)的苯甲醛或其缩醛制备,其中R1O-苯基醚基团中的R1是烷基,环烷基,烷基环烷基或烷基芳基,R2是H或OH,或是 通过其中R 1和R 2具有上述含义的式(II)的苯甲醛或其缩醛的方法,R 1和R 10一个或多个R 1 O-苯基醚基团是醛官能的邻位,间位或对位, 一个或多个R1O-苯基醚基团相对于醛官能团占据上述位置,在作为多相催化剂的沸石上在水存在下转化成式(I)的羟基苯甲醛。 所用的催化剂尤其是pentasil型沸石。

    Method for the production of cyclic ketones
    29.
    发明授权
    Method for the production of cyclic ketones 失效
    环酮生产方法

    公开(公告)号:US07714172B2

    公开(公告)日:2010-05-11

    申请号:US12306827

    申请日:2007-06-27

    Abstract: The present invention relates to a process for preparing a cyclic ketone having from 7 to 16 carbon atoms, which comprises at least the steps (a) oxidation of a composition (I) comprising at least one cyclic alkene which has from 7 to 16 carbon atoms and at least one C—C double bond by means of dinitrogen monoxide to give a composition (A), (b) treatment of the composition (A) with at least one base to give a composition (B), (c) hydrogenation of the composition (B) in the presence of at least one catalyst to give a composition (C), (d) purification of the composition (C), comprising at least the steps (di) thermal treatment of the composition (C) with at least one acid or at least one catalyst comprising at least one transition metal, (dii) further purification by a method selected from the group consisting of distillation, extraction and crystallization.

    Abstract translation: 本发明涉及一种制备具有7至16个碳原子的环酮的方法,其至少包括步骤(a)氧化包含至少一个具有7至16个碳原子的环烯烃的组合物(I) 和至少一个C-C双键,得到组合物(A),(b)用至少一种碱处理组合物(A),得到组合物(B),(c)氢化 所述组合物(B)在至少一种催化剂的存在下反应以得到组合物(C),(d)组合物(C)的纯化,所述组合物(C)至少包含步骤(ii)组合物(C) 至少一种酸或至少一种包含至少一种过渡金属的催化剂,(dii)通过选自蒸馏,萃取和结晶的方法进一步纯化。

    Method for purifying cyclic ketones
    30.
    发明授权
    Method for purifying cyclic ketones 有权
    环酮纯化方法

    公开(公告)号:US07714171B2

    公开(公告)日:2010-05-11

    申请号:US12306807

    申请日:2007-06-27

    Abstract: The present invention relates to a process for purifying a composition (I) comprising at least one cyclic ketone having from 7 to 16 carbon atoms, which comprises thermal treatment of the composition (I) with at least one acid and further purification by means of a process selected from the group consisting of distillation, extraction and crystallization, Furthermore, the present invention relates to a process for preparing cyclododecanone, which comprises such a purification, and the use of at least one acid for purifying a composition (I) comprising at least one cyclic ketone having from 7 to 16 carbon atoms by thermal treatment of the composition (I) with the acid.

    Abstract translation: 本发明涉及一种纯化包含至少一种具有7至16个碳原子的环酮的组合物(I)的方法,其包括用至少一种酸对组合物(I)进行热处理,并进一步通过 选自蒸馏,萃取和结晶的方法。此外,本发明涉及一种制备环十二烷酮的方法,其包括这种纯化,以及使用至少一种酸来纯化至少包含(I)的组合物 一种具有7-16个碳原子的环酮,通过组合物(I)与酸的热处理。

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