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    • 2. 发明授权
    • Preparation of propene and, if desired, 1-butene
    • 丙烯的制备,如果需要,可制备1-丁烯
    • US06433240B1
    • 2002-08-13
    • US09241298
    • 1999-02-01
    • Peter SchwabBoris BreitscheidelCarsten OostRalf SchulzMichael Schulz
    • Peter SchwabBoris BreitscheidelCarsten OostRalf SchulzMichael Schulz
    • C07C602
    • B01D3/141C07C11/06C07C11/08C07C2521/04C07C2523/36C07C2523/46Y02P20/52Y02P20/584
    • Propene and, if desired, 1-butene are prepared by first reacting 1-butene and 2-butene to give propene and 2-pentene in the presence of a metathesis catalyst containing at least one compound of a metal of transition group VIb, VIIb or VIII of the Periodic Table of the Elements. The propene and 2-pentene formed are subsequently separated, and the 2-pentene is then reacted to give propene and 1-butene in the presence of a metathesis catalyst containing at least one compound of a metal of transition group VIb, VIIb or VIII. The propene and 1-butene formed are subsequently separated, and at least some of the 1-butene is discharged or at least partly isomerized to give 2-butene in the presence of an isomerization catalyst. Undischarged 1-butene and the 2-butene formed are subsequently returned to the initial reaction step, together with that part of the C4 fraction which was not reacted in the initial reaction step.
    • 如果需要,丙烯和1-丁烯如下制备,首先使1-丁烯和2-丁烯反应得到丙烯和2-戊烯,在复分解催化剂存在下,该复分解催化剂含有至少一种过渡组VIb,VIIb或 元素周期表八。 随后分离形成的丙烯和2-戊烯,然后在含有至少一种过渡族VIb,VIIb或VIII的金属化合物的复分解催化剂的存在下,使2-戊烯反应得到丙烯和1-丁烯。 随后分离形成的丙烯和1-丁烯,并且在异构化催化剂存在下,将至少一些1-丁烯排出或至少部分异构化,得到2-丁烯。 随后将未放电的1-丁烯和形成的2-丁烯与在初始反应步骤中未反应的部分C4馏分一起返回至初始反应步骤。
    • 6. 发明授权
    • Preparation of C5-/C6-olefins
    • 制备C5- / C6-烯烃
    • US06538168B1
    • 2003-03-25
    • US09610942
    • 2000-07-06
    • Peter SchwabMichael SchulzRalf SchulzSylvia Huber
    • Peter SchwabMichael SchulzRalf SchulzSylvia Huber
    • C07C602
    • C07C7/14891C07C7/005C07C7/10C07C7/163C07C11/06C07C11/10C07C11/107C07C2521/04C07C2521/08C07C2523/36Y02P20/52
    • A process for preparing C5/C6-olefins from an olefinic starting stream comprising C4-hydrocarbons comprises a) carrying out a metathesis reaction in the presence of a metathesis catalyst so as to convert the 1-butene, 2-butene and isobutene present in the starting stream into a mixture of C2-C6-olefins and butanes, b) firstly fractioning the resulting product stream by distillation to give a low boiler fraction A comprising C2-C4-olefins and butanes or C2-C3-olefins, which is discharged, and a high boiler fraction comprising C4-C8-olefins and butanes, c) fractioning the high boiler fraction from b) by distillation to give a low boiler fraction B comprising butenes and butanes, an intermediate boiler fraction C comprising pentene and methylbutene and a high boiler fraction D comprising hexane and methylpentene, d) where all or part of the fraction B and/or C are recirculated to the process step a) and the fraction D is discharged as product.
    • 从包含C 4烃的烯烃原料流制备C5 / C6-烯烃的方法包括:a)在复分解催化剂存在下进行复分解反应,以便转化起始中存在的1-丁烯,2-丁烯和异丁烯 流入C2-C6-烯烃和丁烷的混合物中,b)首先通过蒸馏对所得产物流进行分馏,得到包含C2-C4-烯烃和排出的丁烷或C2-C3-烯烃的低沸点馏分A,以及 包含C4-C8-烯烃和丁烷的高沸点馏分,c)通过蒸馏从b)中分馏高沸点馏分,得到包含丁烯和丁烷的低沸点馏分B,包含戊烯和甲基丁烯的中间锅炉馏分C和高锅炉 馏分D包括己烷和甲基戊烯,d)其中全部或部分馏分B和/或C再循环到方法步骤a),馏分D作为产物排出。
    • 10. 发明授权
    • Flexible preparation of propene and hexene
    • 丙烯和己烯的灵活配制
    • US06580009B2
    • 2003-06-17
    • US09803147
    • 2001-03-12
    • Peter SchwabRalf SchulzSylvia Huber
    • Peter SchwabRalf SchulzSylvia Huber
    • C07C604
    • C07C11/107C07C7/163C07C11/06C07C41/06C07C41/42C07C2521/02C07C2521/04C07C2521/12C07C2523/36C07C2523/42C07C2523/44C07C2523/755C10G70/00Y02P30/464C07C43/04
    • The process for preparing propene and hexene from a raffinate II feed stream comprising olefinic C4-hydrocarbons comprises a) a metathesis reaction in which butenes present in the feed stream are reacted with ethene in the presence of a metathesis catalyst comprising at least one compound of a metal of transition groups VIb, VIIb or VIII of the Periodic Table of the Elements to give a mixture comprising ethene, propene, butenes, 2-pentene, 3-hexene and butanes, using, based on the butenes, from 0.05 to 0.6 molar equivalents of ethene, b) firstly fractionally distilling the product stream obtained in this way to give a low-boiling fraction A comprising C2-C3-olefins and a high-boiling fraction comprising C4-C6-olefins and butanes, c) subsequently fractionally distilling the low-boiling fraction A obtained from b) to give an ethene-containing fraction and a propene-containing fraction, with the ethene-containing fraction being returned to the process step a) and the propene-containing fraction being discharged as product, d) subsequently fractionally distilling the high-boiling fraction obtained from b) to give a low-boiling fraction B comprising butenes and butanes, a pentene-containing intermediate-boiling fraction C and a hexene-containing high-boiling fraction D, e) where the fractions B and C are completely or partly returned to the process step a) and the fraction D is discharged as product.
    • 从包含烯烃C 4烃的提余液II进料流中制备丙烯和己烯的方法包括:a)复分解反应,其中存在于进料流中的丁烯与乙烯在复分解催化剂存在下反应,所述复分解催化剂包含至少一种金属化合物 的元素周期表的VIb,VIIb或VIII族的过渡族VIb,VIIb或VIII化合物,得到包含乙烯,丙烯,丁烯,2-戊烯,3-己烯和丁烷的混合物,使用基于丁烯的0.05至0.6摩尔当量的 乙烯,b)首先对以这种方式获得的产物流进行分馏,得到包含C 2 -C 3 - 烯烃的低沸点馏分A和包含C 4 -C 6烯烃和丁烷的高沸点馏分,c)随后分馏出低 - 从b)得到的沸腾馏分A得到含乙烯馏分和含丙烯馏分,含乙烯馏分返回到方法步骤a)和含丙烯的馏分 离子作为产物排出,d)随后分馏从b)获得的高沸点馏分,得到包含丁烯和丁烷的低沸点馏分B,含戊烯的中间沸点馏分C和含己烯的高沸点 馏分D,e)其中馏分B和C完全或部分地返回到方法步骤a),馏分D作为产物排出。