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    Method for the Separation by Distillation of Pure Trioxane
    45.
    发明申请
    Method for the Separation by Distillation of Pure Trioxane 审中-公开
    蒸馏纯三恶烷分离方法

    公开(公告)号：US20070293688A1

    公开(公告)日：2007-12-20

    申请号：US11660530

    申请日：2005-08-18

    Applicant: Markus Siegert ,  Neven Lang ,  Eckhard Stroefer ,  Achim Stammer ,  Thorsten Friese

    Inventor： Markus Siegert ,  Neven Lang ,  Eckhard Stroefer ,  Achim Stammer ,  Thorsten Friese

    IPC: C07D323/06

    CPC classification number: B01D3/146 ,  B01D3/141 ,  C07D323/06

    Abstract: The present invention relates to a process for distillatively removing pure trioxane from a feedstream (I) comprising trioxane in a proportion of at least 50% by weight, based on the total weight of the feedstream (I), and additionally formaldehyde and water, which comprises feeding the feedstream I and a further aqueous stream (II) which does not contain any components extraneous to the feedstream to a dividing wall column (TWK1) having a dividing wall TW which is arranged substantially perpendicularly and divides the column interior into a feed region (A1), a withdrawal reaction (B1), an upper combined column region (C1) and a lower combined column region (D1), and drawing off from the first dividing wall column (TWK1) a bottom stream (III) comprising pure trioxane and a sidestream (IV) at the withdrawal region (B1), comprising pure water.

    Abstract translation: 本发明涉及一种从基于原料流（I）的总重量至少50重量％的比例的另外的甲醛和水的含有三恶烷的原料流（I）蒸馏除去纯三恶烷的方法，以及另外的甲醛和水 包括将进料流I和不含任何与进料流无关的任何组分的另外的水流（II）进料到具有基本上垂直布置的分隔壁TW的分隔壁塔（TWK 1），并将塔内部分成进料 区域（A 1），取出反应（B 1），上部组合塔区域（C 1）和下部混合塔区域（D 1），从第一分隔壁塔（TWK 1） （III），其包含纯三恶烷和在取出区（B1））的侧流（IV），其包含纯水。

    Use of H2S-containing offgas streams for preparing sulfur-containing products
    46.
    发明授权
    Use of H2S-containing offgas streams for preparing sulfur-containing products 有权
    使用含H2S的废气流来制备含硫产品

    公开(公告)号：US07235697B2

    公开(公告)日：2007-06-26

    申请号：US11302614

    申请日：2005-12-14

    Applicant: Christian Müller ,  Markus Weber ,  Eckhard Stroefer

    Inventor： Christian Müller ,  Markus Weber ,  Eckhard Stroefer

    IPC: C07C315/00 ,  C07C317/00 ,  C07C319/00 ,  C07C321/00 ,  C07C381/00

    CPC classification number: C07C319/24 ,  C07C319/04 ,  C07C319/16 ,  C07C321/04 ,  C07C321/14

    Abstract: The present invention relates to a process for preparing sulfur-containing compounds of the general formula I in which Q, R1 and R2 are each independently defined as follows: Q: —S— or —S—S—, R1: hydrogen or saturated or unsaturated, linear or branched C1-C30-alkyl radical, R2: hydrogen or saturated or unsaturated, linear or branched C1-C30-alkyl radical, where R1 and R2 are not simultaneously hydrogen, by reacting a mixed gas stream comprising hydrogen sulfide, with or without oxygen, with linear or branched C1-C30-olefins, which comprises carrying out the reaction in the presence of water and carbon dioxide at a pressure of from 2 to 325 bar.

    Abstract translation: 本发明涉及一种制备通式I的含硫化合物的方法，其中Q，R 1和R 2各自独立定义如下：Q： -S-或-SS-，R 1：氢或饱和或不饱和的直链或支链C 1 -C 30 - 烷基， R 2是氢或饱和或不饱和的直链或支链C 1 -C 30 - 烷基，其中R 1， 通过使包含硫化氢的混合气流与有或没有氧气反应，使其与直链或支链的C 1 -C 1烷基， 其中包括在2至325巴的压力下在水和二氧化碳存在下进行反应。

    Method for producing highly concentrated formaldehyde solution
    47.
    发明申请
    Method for producing highly concentrated formaldehyde solution 失效
    生产高浓度甲醛溶液的方法

    公开(公告)号：US20070135660A1

    公开(公告)日：2007-06-14

    申请号：US10588662

    申请日：2005-02-10

    Applicant: Bernd Rumpf ,  Eckhard Stroefer ,  Ortmund Lang ,  Neven Lang

    Inventor： Bernd Rumpf ,  Eckhard Stroefer ,  Ortmund Lang ,  Neven Lang

    IPC: C07C45/00

    CPC classification number: C07C45/82 ,  C07C47/04

    Abstract: A process for preparing a high-concentration formaldehyde solution by removing water from a lower-concentration formaldehyde solution having a formaldehyde content of from 5 to 50% by weight, in which the lower-concentration formaldehyde solution is fed to a preheater and heated in the preheater, depressurized via a pressure maintenance device and concentrated in a helical tube evaporator to give a vapor stream and the high-concentration formaldehyde solution as bottom stream, wherein the heated lower-concentration formaldehyde hyde solution is depressurized in the pressure maintenance device to give a two-phase mixture which is fed into the helical tube evaporator, is proposed.

    Abstract translation: 通过从甲醛含量为5〜50重量％的低浓度甲醛溶液中除去水而制备高浓度甲醛溶液的方法，其中将低浓度甲醛溶液加入到预热器中并在 预热器，通过压力维持装置减压，并浓缩在螺旋管蒸发器中，得到蒸气流，高浓度甲醛溶液作为底部流，其中加压的低浓度甲醛海藻溶液在压力维持装置中减压，得到 提出了进入螺旋管蒸发器的两相混合物。

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