Process to separate phosgene and hydrogen chloride from a fluid stream comprising phosgene and hydrogen chloride
    4.
    发明申请
    Process to separate phosgene and hydrogen chloride from a fluid stream comprising phosgene and hydrogen chloride 有权
    从包含光气和氯化氢的流体流中分离光气和氯化氢的方法

    公开(公告)号:US20140147373A1

    公开(公告)日:2014-05-29

    申请号:US14117892

    申请日:2012-06-15

    IPC分类号: C01B7/07 C07C263/10 B01D53/22

    摘要: A process according to the invention is a process to separate an initial fluid stream comprising phosgene and hydrogen chloride in at least a first and a second fluid stream, said first fluid stream being a hydrogen chloride enriched and phosgene depleted gaseous stream, said second fluid stream being a hydrogen chloride depleted and phosgene enriched stream. The separation is performed by feeding said initial fluid stream to a membrane separation unit, said membrane separation unit separating said initial fluid stream in a first and a second fluid stream

    摘要翻译: 根据本发明的方法是在至少第一和第二流体流中分离包含光气和氯化氢的初始流体流的方法,所述第一流体流是富含氯化氢和光气的气流,所述第二流体流 是富含氯化氢的富碳光气。 通过将所述初始流体流供给到膜分离单元来进行分离,所述膜分离单元将第一和第二流体流中的所述初始流体流分离

    Continuous low-temperature process to produce trans-1-chloro-3,3,3-trifluoropropene
    5.
    发明授权
    Continuous low-temperature process to produce trans-1-chloro-3,3,3-trifluoropropene 有权
    连续低温法生产反式-1-氯-3,3,3-三氟丙烯

    公开(公告)号:US08704017B2

    公开(公告)日:2014-04-22

    申请号:US13220212

    申请日:2011-08-29

    IPC分类号: C07C17/20

    摘要: Disclosed is process for the production of (E) 1-chloro-3,3,3-trifluoropropene (HCFO-1233zd(E)) by conducting a continuous reaction without the use of a catalyst. Also disclosed is an integrated system for producing hydrofluoro olefins, particularly 1233zd(E). The manufacturing process includes six major unit operations: (1) a fluorination reaction of HCC-240fa (in continuous or semi-batch mode) using HF with simultaneous removal of by-product HCl and the product 1233zd(E); (2) recycle of unreacted HCC-240fa and HF together with under-fluorinated by-products back to (1); (3) separation and purification of by-product HCl; (4) separation of excess HF back to (1); (5) purification of final product, 1233zd(E); and (6) isomerization of by-product 1233zd(Z) to 1233zd(E) to maximize the process yield.

    摘要翻译: 公开了通过在不使用催化剂的情况下进行连续反应来制备(E)1-氯-3,3,3-三氟丙烯(HCFO-1233zd(E))的方法。 还公开了用于制备氢氟烯烃的综合系统,特别是1233zd(E)。 制造过程包括六个主要单元操作:(1)使用HF同时除去副产物HCl和产物1233zd(E)的HCC-240fa(连续或半间歇模式)的氟化反应; (2)将未反应的HCC-240fa和HF与未氟化的副产物一起回收至(1); (3)副产物HCl的分离纯化; (4)将过量的HF分离回(1); (5)最终产物的纯化,1233zd(E); 和(6)副产物1233zd(Z)异构化为1233zd(E)以使工艺产率最大化。

    METHOD FOR INHIBITING FOULING IN VAPOR TRANSPORT SYSTEM
    8.
    发明申请
    METHOD FOR INHIBITING FOULING IN VAPOR TRANSPORT SYSTEM 失效
    用于在蒸汽运输系统中抑制蒸发的方法

    公开(公告)号:US20120012792A1

    公开(公告)日:2012-01-19

    申请号:US13169572

    申请日:2011-06-27

    摘要: Elimination and/or mitigation of fouling in a vapor transport systems, such as vent lines and scrubber feed lines may be accomplished using an antifouling additive. The method for employing the antifouling additive includes introducing into the vapor transport system an additive including a polar solvent and corrosion inhibitor wherein: the vapor transport system is substantially water free; the vapor transport system is used to transport acidic materials; the additive is a liquid at vapor transport system operating conditions; and the additive is stable at the vapor transport system operating conditions.

    摘要翻译: 可以使用防污添加剂来实现蒸气输送系统(例如排气管线和洗涤器进料管线)中的消除和/或减轻污垢。 使用防污添加剂的方法包括向蒸气输送系统中引入包含极性溶剂和腐蚀抑制剂的添加剂,其中:蒸汽输送系统基本上不含水; 蒸汽输送系统用于运输酸性物质; 添加剂是蒸汽输送系统操作条件下的液体; 并且添加剂在蒸汽输送系统的操作条件下是稳定的。

    PROCESSING METHOD FOR RECOVERING IRON OXIDE AND HYDROCHLORIC ACID
    9.
    发明申请
    PROCESSING METHOD FOR RECOVERING IRON OXIDE AND HYDROCHLORIC ACID 有权
    回收氧化铁和氢氯酸的处理方法

    公开(公告)号:US20110158869A1

    公开(公告)日:2011-06-30

    申请号:US13000216

    申请日:2009-06-18

    IPC分类号: C01G49/06 C01B7/03

    CPC分类号: C01G49/06 C01B7/0706 C23G1/36

    摘要: A method of processing waste iron chloride solution including ferrous chloride, ferric chloride or mixtures thereof and optionally free hydrochloric acid, includes concentrating waste iron chloride solution into concentrated liquid having iron chloride concentration of at least 30%-40% by weight; optionally oxidizing ferrous chloride in the concentrated liquid from the concentration step to ferric chloride providing liquid containing ferric chloride; hydrolyzing the liquid containing ferric chloride from the oxidation step at 155-350° C., maintaining the ferric chloride concentration at least at 65% by weight, generating steam containing hydrogen chloride and liquid containing ferric oxide; separating ferric oxide from the liquid containing ferric oxide in the hydrolysis step; condensing steam containing hydrogen chloride in the hydrolysis step, recovering hydrochloric acid at a concentration of at least 10%-15% by weight; and using condensation energy of the hydrogen chloride containing steam in the recovery step to heat the concentration step performed under reduced pressure.

    摘要翻译: 一种处理包括氯化亚铁,氯化铁或其混合物和任选的游离盐酸的废氯化铁溶液的方法包括将废铁水溶液浓缩至浓度为至少30%-40%(重量)的氯化铁浓缩液; 任选地将浓缩步骤中的浓缩液中的氯化亚铁氧化成三氯化铁提供含有氯化铁的液体; 在155-350℃下从氧化步骤水解含有氯化铁的液体,维持氯化铁浓度至少为65重量%,产生含有氯化氢的蒸汽和含有氧化铁的液体; 在水解步骤中从含有三氧化二铁的液体中分离出氧化铁; 在水解步骤中冷凝含有氯化氢的蒸汽,以至少10重量%-15重量%的浓度回收盐酸; 并且在回收步骤中使用含有氯化氢的蒸汽的冷凝能量来加热在减压下进行的浓缩步骤。