Method for producing isocyanates
    1.
    发明申请
    Method for producing isocyanates 有权
    异氰酸酯的制备方法

    公开(公告)号:US20050222453A1

    公开(公告)日:2005-10-06

    申请号:US10513340

    申请日:2003-05-19

    IPC分类号: C07C263/10 C07C265/14

    CPC分类号: C07C263/10 C07C265/14

    摘要: The present invention relates to a continuous process for preparing isocyanates by reacting primary amines with phosgene, wherein the reaction is carried out in a cascade of at least two tube reactors and the gas phase formed in the reaction is separated off in a phase separator after each reactor and only the liquid phase is passed to the next reactor or to product purification and the reaction volume of the first tube reactor is only a fraction of the total reaction volume.

    摘要翻译: 本发明涉及通过使伯胺与光气反应制备异氰酸酯的连续方法,其中反应在至少两个管式反应器的级联中进行,并且在每个反应器中在相分离器中分离反应中形成的气相 反应器,并且只有液相被传送到下一个反应器或产物纯化,并且第一管式反应器的反应体积仅为总反应体积的一部分。

    Method for producing isocyanates
    2.
    发明授权
    Method for producing isocyanates 有权
    异氰酸酯的制备方法

    公开(公告)号:US07112694B2

    公开(公告)日:2006-09-26

    申请号:US10513340

    申请日:2003-05-19

    IPC分类号: C07C263/00 B01J10/00

    CPC分类号: C07C263/10 C07C265/14

    摘要: The present invention relates to a continuous process for preparing isocyanates by reacting primary amines with phosgene, wherein the reaction is carried out in a cascade of at least two tube reactors and the gas phase formed in the reaction is separated off in a phase separator after each reactor and only the liquid phase is passed to the next reactor or to product purification and the reaction volume of the first tube reactor is only a fraction of the total reaction volume.

    摘要翻译: 本发明涉及通过使伯胺与光气反应制备异氰酸酯的连续方法,其中反应在至少两个管式反应器的级联中进行,并且在每个反应器中在相分离器中分离反应中形成的气相 反应器,并且只有液相被传送到下一个反应器或产物纯化,并且第一管式反应器的反应体积仅为总反应体积的一部分。

    METHOD FOR COMPRESSING GASES CONTAINING HYDROGEN SULFIDE
    6.
    发明申请
    METHOD FOR COMPRESSING GASES CONTAINING HYDROGEN SULFIDE 有权
    用于压缩含有硫化氢的气体的方法

    公开(公告)号:US20110263894A1

    公开(公告)日:2011-10-27

    申请号:US13141906

    申请日:2009-12-22

    摘要: A process for compressing a hydrogen-sulfide-comprising gas stream, which comprises (i) compressing the hydrogen-sulfide-comprising gas stream in a compressor, (ii) flushing the compressor with a mixture comprising dialkyl polysulfides, dialkyl disulfides and at least one amine; a process for producing sulfur compounds, selected from the group consisting of alkylmercaptans, dialkyl disulfides and alkanesulfonic acids, which comprises the conversion of hydrogen-sulfide-comprising gas streams, wherein the hydrogen-sulfide-comprising gas streams are compressed according to the process comprising steps i) and ii); and also the use of a mixture comprising dialkyl polysulfides, dialkyl disulfides and at least one amine for removing sulfur deposits which occur in the compression of hydrogen-sulfide-comprising gas streams.

    摘要翻译: 一种用于压缩含硫化氢的气流的方法,其包括(i)在压缩机中压缩含硫化氢的气流,(ii)用包含二烷基多硫化物,二烷基二硫化物和至少一种 胺; 一种生产选自烷基硫醇,二烷基二硫化物和烷基磺酸的硫化合物的方法,其包括含硫化氢的气流的转化,其中含硫化氢的气流根据包括 步骤i)和ii); 以及使用包含二烷基多硫化物,二烷基二硫化物和至少一种胺的混合物来除去在含硫化氢的气流的压缩中发生的硫沉积物。

    Reactor and method for production of hydrogen sulphide
    10.
    发明授权
    Reactor and method for production of hydrogen sulphide 有权
    用于生产硫化氢的反应器和方法

    公开(公告)号:US08580208B2

    公开(公告)日:2013-11-12

    申请号:US12963827

    申请日:2010-12-09

    摘要: The present invention describes a reactor (1) for continuously preparing hydrogen sulfide H2S from hydrogen and sulfur, comprising a distributor device (15) for distributing gaseous hydrogen in a sulfur melt (9) present at least in a lower part of the reactor. The distributor device (15) is arranged in the sulfur melt (9) and comprises a distributor plate (16) which is arranged in the reactor (1) and has an edge (17) extending downward and, if appropriate, has passage orifices (19). The hydrogen from a hydrogen bubble which forms below the distributor plate (16) is (for example through the passage orifices (19)) distributed in the sulfur melt (9) via the distributor plate (16).

    摘要翻译: 本发明描述了一种用于从氢和硫连续制备硫化氢H 2 S的反应器(1),包括用于在至少在反应器的下部存在的硫磺熔体(9)中分配气态氢的分配器装置(15)。 分配器装置(15)布置在硫磺熔体(9)中并且包括布置在反应器(1)中的分配器板(16),并且具有向下延伸的边缘(17),并且如果适当的话具有通道孔 19)。 来自分配器板(16)下方形成的来自氢气泡的氢气(例如通过通道孔口(19))经由分配板(16)分布在硫磺熔体(9)中。