Method for producing isocyanates in the gas phase
    1.
    发明授权
    Method for producing isocyanates in the gas phase 有权
    在气相中生产异氰酸酯的方法

    公开(公告)号:US09102594B2

    公开(公告)日:2015-08-11

    申请号:US13696195

    申请日:2011-04-29

    IPC分类号: C07C263/10

    CPC分类号: C07C263/10 C07C265/14

    摘要: The invention relates to a process for the preparation of isocyanates by reaction of the corresponding amines with phosgene in the gas phase, wherein a diluent containing between 90.0000% by weight and 99.9999% by weight of substances which are inert in the phosgenation process and between 0.0001% by weight and 10.0000% by weight of oxygen is present during the conversion of the amine into the gas phase and the molar ratio of amine to oxygen (O2) is ≧1,000:1.

    摘要翻译: 本发明涉及一种通过相应的胺与气相中的光气反应来制备异氰酸酯的方法,其中包含在光气化过程中为惰性的物质的90.0000重量%至99.9999重量%的稀释剂和0.0001 在胺转化为气相期间存在重量%和10.0000%重量的氧,胺与氧(O 2)的摩尔比为≧1,000:1。

    METHOD FOR PRODUCING ISOCYANATES IN THE GAS PHASE
    2.
    发明申请
    METHOD FOR PRODUCING ISOCYANATES IN THE GAS PHASE 有权
    在气相中生产异氰酸酯的方法

    公开(公告)号:US20130131377A1

    公开(公告)日:2013-05-23

    申请号:US13696195

    申请日:2011-04-29

    IPC分类号: C07C263/10

    CPC分类号: C07C263/10 C07C265/14

    摘要: The invention relates to a process for the preparation of isocyanates by reaction of the corresponding amines with phosgene in the gas phase, wherein a diluent containing between 90.0000% by weight and 99.9999% by weight of substances which are inert in the phosgenation process and between 0.0001% by weight and 10.0000% by weight of oxygen is present during the conversion of the amine into the gas phase and the molar ratio of amine to oxygen (O2) is ≧1,000:1.

    摘要翻译: 本发明涉及一种通过相应的胺与气相中的光气反应来制备异氰酸酯的方法,其中包含在光气化过程中为惰性的物质的90.0000重量%至99.9999重量%的稀释剂和0.0001 在胺转化为气相期间存在重量%和10.0000%(重量)的氧,胺与氧(O 2)的摩尔比≥1000:1。

    Process for the preparation of isocyanates in the gas phase
    3.
    发明授权
    Process for the preparation of isocyanates in the gas phase 有权
    在气相中制备异氰酸酯的方法

    公开(公告)号:US09051243B2

    公开(公告)日:2015-06-09

    申请号:US13383936

    申请日:2010-07-06

    IPC分类号: C07C263/10

    CPC分类号: C07C263/10 C07C265/14

    摘要: Isocyanates are produced by reacting a primary amine with phosgene in the gas phase. In this process, the amine is vaporized and then superheated prior to introduction into the reactor. The amine is superheated to a temperature at least 10° C. above dew point before entry into the reactor. A pressure difference between the vaporizer and entry into the reactor of from 1 to 500 mbar is maintained.

    摘要翻译: 异氰酸酯是通过在气相中使伯胺与光气反应来制备的。 在该方法中,胺被蒸发,然后在引入反应器之前过热。 胺在进入反应器之前过热至高于露点至少10℃的温度。 蒸发器和进入反应器的压差保持在1至500毫巴之间。

    PROCESS FOR THE PREPARATION OF ISOCYANATES IN THE GAS PHASE
    4.
    发明申请
    PROCESS FOR THE PREPARATION OF ISOCYANATES IN THE GAS PHASE 有权
    在气相中制备异氰酸酯的方法

    公开(公告)号:US20120108845A1

    公开(公告)日:2012-05-03

    申请号:US13383936

    申请日:2010-07-06

    IPC分类号: C07C263/10

    CPC分类号: C07C263/10 C07C265/14

    摘要: Isocyanates are produced by reacting a primary amine with phosgene in the gas phase. In this process, the amine is vaporized and then superheated prior to introduction into the reactor. The amine is superheated to a temperature at least 10° C. above dew point before entry into the reactor. A pressure difference between the vaporizer and entry into the reactor of from 1 to 500 mbar is maintained.

    摘要翻译: 异氰酸酯是通过在气相中使伯胺与光气反应来制备的。 在该方法中,胺被蒸发,然后在引入反应器之前过热。 胺在进入反应器之前过热至高于露点至少10℃的温度。 蒸发器和进入反应器的压差保持在1至500毫巴之间。

    Process for the continuous preparation of nitrobenzene
    5.
    发明授权
    Process for the continuous preparation of nitrobenzene 有权
    连续制备硝基苯的方法

    公开(公告)号:US08357827B2

    公开(公告)日:2013-01-22

    申请号:US13019350

    申请日:2011-02-02

    IPC分类号: C07C205/00

    CPC分类号: C07C201/08 C07C205/06

    摘要: Nitrobenzene is continuously produced by nitration of benzene with mixed acid under adiabatic conditions. In this process, the pressure upstream of the nitration reactor is from 14 bar to 40 bar above the pressure in the gas phase of the phase separation apparatus used to separate crude nitrobenzene and waste acid.

    摘要翻译: 通过在绝热条件下用混合酸硝化苯来连续生产硝基苯。 在该过程中,硝化反应器上游的压力比用于分离粗硝基苯和废酸的相分离装置的气相压力高14巴至40巴。

    Process for the production of hydrocarbons including olefins from synthesis gas
    6.
    发明授权
    Process for the production of hydrocarbons including olefins from synthesis gas 有权
    从合成气中生产包括烯烃的烃的方法

    公开(公告)号:US08558047B2

    公开(公告)日:2013-10-15

    申请号:US12937694

    申请日:2009-04-15

    IPC分类号: C07C1/00

    摘要: A process is provided for the production of hydrocarbons from synthesis gas wherein the synthesis gas is fed to a reactor in which a catalyst acts on the feed at a temperature of between 160° C. and 400° C. and a pressure of between 1 bar and 5 bar. The feed includes a compound containing one or both nitrogen and phosphorus added to the reactor with the synthesis gas. The compound containing nitrogen typically constitutes at least 1 vol % and preferably of the order of 4 to 20 vol % or more of the feed. The carbonaceous gas may be carbon monoxide with a ratio of hydrogen to carbon monoxide in the synthesis gas of from 0.5:1 to 5:1. The catalyst is preferably a supported cobalt catalyst and may be modified with a promoter. The process produces an enhanced proportion of olefins, in the hydrocarbons produced.

    摘要翻译: 提供了一种用于从合成气生产烃的方法,其中合成气进料到反应器中,其中催化剂在160℃和400℃之间的温度下进料到进料上,压力在1巴之间 和5巴。 进料包括含有合成气加入反应器中的一种或两种氮和磷的化合物。 含有氮的化合物通常构成进料的至少1体积%,优选为4〜20体积%以上。 含碳气体可以是合成气中氢与一氧化碳的比例为0.5:1至5:1的一氧化碳。 催化剂优选为负载型钴催化剂,并可用助催化剂进行改性。 该方法在所生产的烃中产生增加比例的烯烃。

    METHOD FOR CONTINUOUSLY PRODUCING NITROBENZENE
    9.
    发明申请
    METHOD FOR CONTINUOUSLY PRODUCING NITROBENZENE 审中-公开
    连续生产硝基苯的方法

    公开(公告)号:US20130204043A1

    公开(公告)日:2013-08-08

    申请号:US13812690

    申请日:2011-07-26

    IPC分类号: C07C201/14

    摘要: The present invention relates to a continuous process for the production of nitrobenzene by nitration of benzene with nitric acid or mixtures of nitric acid and sulfuric acid to give a crude nitrobenzene, washing of the crude nitrobenzene by means of at least one of each of an acid, alkaline and neutral washing, there being obtained a pre-purified nitrobenzene which, as well as containing nitrobenzene, at least contains also low boilers, optionally middle boilers as well as high boilers and salts, wherein the pre-purified nitrobenzene is purified further by separating off low boilers in a distillation apparatus by evaporation of the low boilers, and separation of nitrobenzene from the resulting further purified nitrobenzene in a distillation apparatus by partial evaporation of nitrobenzene, wherein pure nitrobenzene is removed from the distillation apparatus in gaseous form and is subsequently condensed, and wherein the non-evaporated portion of the further purified nitrobenzene is fed back into the washing at any desired point.

    摘要翻译: 本发明涉及通过用硝酸或硝酸和硫酸的混合物硝化硝酸生产硝基苯的连续方法,得到粗硝基苯,通过以下各项中的至少一种酸洗粗硝基苯 碱性和中性洗涤,得到预纯化的硝基苯以及含有硝基苯,至少还含有低锅炉,任选的中间锅炉以及高锅炉和盐,其中预纯化的硝基苯进一步通过 通过蒸发低沸点锅炉将蒸馏装置中的低锅炉分离出来,并通过硝基苯的部分蒸发在蒸馏装置中将硝基苯与所得到的进一步纯化的硝基苯分离,其中将纯硝基苯以气态从蒸馏装置中除去,随后 冷凝,并且其中进一步纯化的硝基苯的未蒸发部分进料 回到任何想要的点的洗涤。