Method for the production of chlorine
    22.
    发明申请
    Method for the production of chlorine 审中-公开
    生产氯的方法

    公开(公告)号:US20060263290A1

    公开(公告)日:2006-11-23

    申请号:US10567579

    申请日:2004-08-06

    IPC分类号: C01B7/00

    CPC分类号: C01B7/04 Y02P20/228

    摘要: The invention relates to a process for preparing chlorine by catalytic gas-phase oxidation of hydrogen chloride, which comprises the steps: a) providing a feed gas stream I comprising hydrogen chloride and a feed gas stream II comprising oxygen; b) in a first oxidation stage, feeding the feed gas stream I, the feed gas stream II, if desired a recycle stream la comprising hydrogen chloride and if desired an oxygen-containing recycle stream IIa into a first oxidation zone and bringing them into contact with a first oxidation catalyst so that a first partial amount of the hydrogen chloride is oxidized to chlorine and a gas stream III comprising chlorine, unreacted oxygen, unreacted hydrogen chloride and water vapor is obtained; c) in a second oxidation stage, feeding the gas stream III into a second oxidation zone and bringing it into contact with at least one further oxidation catalyst so that a second partial amount of the hydrogen chloride is oxidized to chlorine and a product gas stream IV comprising chlorine, unreacted oxygen, unreacted hydrogen chloride and water vapor is obtained; d) isolating chloride, if desired the recycle stream Ia and if desired the recycle stream IIa from the product gas stream IV, wherein the first oxidization catalyst in the first oxidation zone is present in a fluidized bed and the further oxidation catalyst or catalysts in the second oxidation zone is/are present in a fixed bed.

    摘要翻译: 本发明涉及通过氯化氢的催化气相氧化制备氯的方法,其包括以下步骤:a)提供包含氯化氢的进料气流I和包含氧的进料气流II; b)在第一氧化阶段,如果需要,将进料气流I,进料气流II进料到包含氯化氢的再循环流1a,并且如果需要,将含氧循环流IIa进入第一氧化区并使其接触 用第一氧化催化剂使得第一部分氯化氢被氧化成氯,得到包含氯,未反应的氧,未反应的氯化氢和水蒸气的气流III; c)在第二氧化阶段,将气流III进料到第二氧化区并使其与至少一种其它氧化催化剂接触,使得第二部分量的氯化氢被氧化成氯,产物气流IV 包括氯,未反应的氧,未反应的氯化氢和水蒸气; d)如果需要,根据需要从产物气流IV中分离氯化物,如果需要,再循环流Ia,如果需要,再循环流IIa,其中第一氧化区中的第一氧化催化剂存在于流化床中, 第二氧化区存在于固定床中。

    Process for producing propylene oxide
    26.
    发明授权
    Process for producing propylene oxide 有权
    生产环氧丙烷的方法

    公开(公告)号:US07863468B2

    公开(公告)日:2011-01-04

    申请号:US11994129

    申请日:2006-06-20

    IPC分类号: C07D301/12

    CPC分类号: C07D301/12

    摘要: The present invention relates to a process for producing propylene oxide comprising (I) reacting propene with hydrogen peroxide in the presence of a catalyst to give a mixture (GI) comprising propylene oxide, unreacted propene, and oxygen; (II) separating propylene oxide from mixture (GI) to give a mixture (GII) comprising propene and oxygen; (III) reducing the oxygen comprised in mixture (GII) at least partially by reaction with hydrogen in the presence of a catalyst comprising Sn and at least one noble metal.

    摘要翻译: 本发明涉及一种生产环氧丙烷的方法,其包括(I)在催化剂存在下使丙烯与过氧化氢反应,得到包含环氧丙烷,未反应的丙烯和氧的混合物(GI) (II)将环氧丙烷与混合物(GI)分离,得到包含丙烯和氧的混合物(GII); (III)在包含Sn和至少一种贵金属的催化剂的存在下至少部分地通过与氢反应来还原混合物(GII)中包含的氧。

    Method for producing 4-vinylcyclohexene, ethyl benzole and styrene
    30.
    发明授权
    Method for producing 4-vinylcyclohexene, ethyl benzole and styrene 失效
    制备4-乙烯基环己烯,乙基苯和苯乙烯的方法

    公开(公告)号:US07193121B2

    公开(公告)日:2007-03-20

    申请号:US10501876

    申请日:2003-02-17

    IPC分类号: C07C5/32

    摘要: The invention relates to a process for preparing 4-vinylcyclohexene, which comprises the steps (A) providing an n-butane-containing feed gas stream, (B) feeding the n-butane-containing feed gas stream into at least one dehydrogenation zone and dehydrogenating n-butane to butadiene to give a product stream comprising butadiene, n-butane, possibly 1-butene and 2-butene and possibly water vapor and other secondary constituents, (C) feeding the product stream from dehydrogenation, if appropriate after separating off water vapor and secondary constituents, into a dimerization zone and catalytically dimerizing butadiene to give a product stream comprising 4-vinylcyclohexene, n-butane and possibly 1-butene, 2-butene and unreacted butadiene, and (D) separating off 4-vinylcyclohexene from the product stream from the dimerization and recirculating n-butane and possibly 1-butene, 2-butene and unreacted butadiene to the dehydrogenation zone.

    摘要翻译: 本发明涉及一种制备4-乙烯基环己烯的方法,其包括步骤(A)提供含正丁烷的进料气流,(B)将含正丁烷的进料气流进料至至少一个脱氢区和 将正丁醇脱氢成丁二烯,得到包含丁二烯,正丁烷,可能的1-丁烯和2-丁烯以及可能的水蒸气和其他二次成分的产物流,(C)如果适当,将脱离后的产物流从分离出来 水蒸气和次要成分,进入二聚化区域并催化二聚丁二烯,得到包含4-乙烯基环己烯,正丁烷和可能的1-丁烯,2-丁烯和未反应的丁二烯的产物流,和(D)将4-乙烯基环己烯从 来自二聚和再循环的正丁烷和可能的1-丁烯,2-丁烯和未反应的丁二烯的产物流到脱氢区。