Method for reducing formation of polychlorinated aromatic compounds during air oxychlorination of c1-c3 hydrocarbons
    2.
    发明公开
    Method for reducing formation of polychlorinated aromatic compounds during air oxychlorination of c1-c3 hydrocarbons 失效
    一种用于C1-C3烃的空气 - 氧氯化过程中减少多氯代芳族化合物的形成方法

    公开(公告)号:EP0781746A1

    公开(公告)日:1997-07-02

    申请号:EP96120709.9

    申请日:1996-12-21

    申请人: The Geon Company

    摘要: An improved process is disclosed for manufacturing chlorinated hydrocarbon by way of a once-through air-based oxychlorination process which yields reduced levels of environmental toxins such as chlorobenzenes, polychlorinated biphenyls, polychlorinated dibenzodioxins and polychlorinated dibenzofurans. The process involves fixed bed or fluid bed catalyzed oxychlorination of a hydrocarbon reactant containing from 1 to 3 carbon atoms.
    The oxychlorination process consists of contacting the hydrocarbon reactant with air or oxygen enriched air and hydrogen chloride in the presence of the oxychlorination catalyst in a heated reaction zone operated at from 150°C to 600°C and recovering chlorinated hydrocarbon from the effluents of the reaction zone. The improvement consists of the use of air which is pretreated before use in the operated oxychlorination process by a means for removal of the aromatic hydrocarbons.

    摘要翻译: 一种改进的方法是游离缺失盘用于通过一次通过基于空气 - 氧氯化方法,其得到的环境毒素水平降低的方式制造氯化烃:例如氯苯,多氯联苯,多氯二苯并二苯并呋喃聚氯。 该方法涉及固定床或流化床催化的烃反应物含有1〜3个碳原子的氧氯化。 从反应的流出物接触,空气或富氧空气和氯化氢的烃反应物在该氧氯化催化剂在在150℃下操作,以600℃的加热的反应区的存在和回收氯代烃的氧氯化过程besteht 区。 空气的使用所有这是在操作氧氯化过程在使用前由一装置,用于去除芳香烃的预处理的改进besteht。

    Improved catalyst and process for oxychlorination of ethylene to EDC
    5.
    发明公开
    Improved catalyst and process for oxychlorination of ethylene to EDC 失效
    Katalysator和Verfahren zur Oxychlorierung von Ethylen in Dichlorethan。

    公开(公告)号:EP0582165A1

    公开(公告)日:1994-02-09

    申请号:EP93111913.5

    申请日:1993-07-27

    申请人: The Geon Company

    摘要: The subject invention relates to catalyst compositions for oxychlorination of ethylene to produce 1,2-dichloroethane. The catalysts comprise copper chloride, at least one alkali metal, at least one rare earth metal, and at least one Group IIA metal on a high surface area support for fluid bed applications or on a high or low surface area support for fixed bed applications. The catalyst compositions are prepared by depositing the metals on a support. The use of the catalyst compositions of the invention in the oxychlorination of ethylene to EDC results in high percent ethylene efficiency, high EDC product purity and high percent HCl conversion without exhibiting catalyst stickiness. A process for oxychlorination of ethylene to produce 1,2-dichloroethane is also disclosed. The process relies on contacting a mixture of ethylene, oxygen or oxygen containing gas and hydrogen chloride with a fixed or fluidized catalyst composition in a reaction zone and recovering 1,2-dichloroethane from the effluents of the reaction zone.

    摘要翻译: 本发明涉及乙烯氧氯化产生1,2-二氯乙烷的催化剂组合物。 催化剂包括氯化铜,至少一种碱金属,至少一种稀土金属和高表面积上的至少一种IIA族金属,用于流化床应用或用于固定床应用的高表面或低表面积。 通过将金属沉积在载体上来制备催化剂组合物。 使用本发明的催化剂组合物在乙烯氧氯化至EDC时,乙烯效率高,EDC产物纯度高,HCl转化率高,而不显示催化剂粘性。 还公开了乙烯氧氯化以产生1,2-二氯乙烷的方法。 该方法依靠将乙烯,氧气或含氧气体与氯化氢的混合物与反应区中的固定或流化催化剂组合物接触并从反应区的流出物回收1,2-二氯乙烷。

    Method for reducing formation of polychlorinated aromatic compounds during oxychlorination of C1-C3 hydrocarbons
    6.
    发明公开
    Method for reducing formation of polychlorinated aromatic compounds during oxychlorination of C1-C3 hydrocarbons 无效
    一种用于C1-C3烃的氧氯化过程中减少多氯代芳族化合物的形成方法

    公开(公告)号:EP0774450A1

    公开(公告)日:1997-05-21

    申请号:EP96118115.3

    申请日:1996-11-12

    申请人: The Geon Company

    摘要: An improved process is disclosed for manufacturing chlorinated hydrocarbon by way of oxychlorination which yields reduced levels of environmental toxins such as, chlorobenzenes, polychlorinated biphenyls, polychlorinated dibenzodioxins and polychlorinated dibenzofurans. The process involves fixed bed or fluid bed catalyzed oxychlorination of a hydrocarbon reactant containing from 1 to 3 carbon atoms. The oxychlorination process consists of contacting the hydrocarbon reactant with oxygen or oxygenated gas and at least a portion of externally obtained hydrogen chloride in the presence of the oxychlorination catalyst in a heated reaction zone operated at from 150°C to 600°C and recovering chlorinated hydrocarbon from the effluents of the reaction zone. The improvement consists of the use of at least a portion of the hydrogen chloride from an external source other than from recovery of hydrogen chloride from the thermal pyrolysis of the product from the operated oxychlorination process, wherein the external hydrogen chloride, containing aromatic hydrocarbons, is pretreated before use in the operated oxychlorination process by a means for removal of the aromatic hydrocarbons.

    摘要翻译: 一种改进的方法是游离缺失盘用于通过氧氯化的方式这产生环境毒素水平降低制造氯代烃:诸如,氯苯,多氯联苯,多氯二苯并二苯并呋喃聚氯。 该方法涉及固定床或流化床催化的烃反应物含有1〜3个碳原子的氧氯化。 接触用氧气或含氧气体和从外部获得的氢氯化物的氧氯化催化剂中在150℃下操作,以600℃的加热的反应区中存在的至少一部分的烃反应物并回收氯代烃的氧氯化过程besteht 从反应区的流出物。 使用至少一个从在比从从操作氧氯化过程中的产物,worin外部氯化氢的热解氯化氢回收其它外部源的氯化氢部分的改进besteht,含芳族烃,是 在操作氧氯化过程以除去芳族烃的使用由之前手段预处理。