Process for converting methane into ethane
    1.
    发明授权
    Process for converting methane into ethane 失效
    将甲烷转化为乙烷的方法

    公开(公告)号:US07473814B2

    公开(公告)日:2009-01-06

    申请号:US10517212

    申请日:2003-06-04

    IPC分类号: C07C2/00

    摘要: The invention relates to a process for producing ethane comprising contacting methane with a metal catalyst selected from metal hydrides, metal organic compounds and mixtures thereof. It also relates to a process for the conversion of methane to carbon-containing products comprising contacting methane with a metal catalyst comprising at least one metal, Me, chosen from the lanthanides, the actinides and the metals from Groups 2 to 12 of the Periodic Table of the Elements, so as to produce ethane in a proportion of at least 65%, especially at least 98% or 99% by weight with respect to carbon-containing products formed in the process. The process can be a single-step process, preferably carried out under conditions involving a non-oxidative catalytic coupling of methane, in particular under operating conditions maintained substantially constant, preferably continuously, during the ethane production, e.g. at a temperature ranging from −30° C. to +80° C., preferably from 20° C. to 500° C., under a total absolute pressure ranging from 10−3 to 100 MPa, preferably from 0.1 to 50 MPa. The metal catalyst may be chosen from metal catalysts supported on and preferably grafted to a solid support. One of the main advantages of the present invention is to produce ethane with a very high selectivity.

    摘要翻译: 本发明涉及一种生产乙烷的方法,包括使甲烷与选自金属氢化物,金属有机化合物及其混合物的金属催化剂接触。 它还涉及将甲烷转化为含碳产物的方法,包括使甲烷与包含至少一种金属的金属催化剂接触,所述金属催化剂选自镧系元素,锕系元素和元素周期表第2至12族中的金属 的元素,以便相对于在该方法中形成的含碳产品,以至少65重量%,特别是至少98重量%或99重量%的比例制备乙烷。 该方法可以是单步骤方法,优选在涉及甲烷的非氧化催化偶合的条件下进行,特别是在乙烷生产期间,优选连续保持基本上恒定的操作条件下,例如乙烷生产。 在-30℃至+ 80℃,优选20℃至500℃的温度下,在绝对压力范围为10-3-100MPa,优选0.1-50MPa的温度下进行。 金属催化剂可以选自负载在并优选接枝到固体载体上的金属催化剂。 本发明的主要优点之一是以非常高的选择性生产乙烷。

    Process for converting methane into ethane
    2.
    发明申请
    Process for converting methane into ethane 失效
    将甲烷转化为乙烷的方法

    公开(公告)号:US20050272966A1

    公开(公告)日:2005-12-08

    申请号:US10517212

    申请日:2003-06-04

    IPC分类号: C07C2/76 C07C6/08 C07C9/06

    摘要: The invention relates to a process for producing ethane comprising contacting methane with a metal catalyst selected from metal hydrides, metal organic compounds and mixtures thereof. It also relates to a process for the conversion of methane to carbon-containing products comprising contacting methane with a metal catalyst comprising at least one metal, Me, chosen from the lanthanides, the actinides and the metals from Groups 2 to 12 of the Periodic Table of the Elements, so as to produce ethane in a proportion of at least 65%, especially at least 98% or 99% by weight with respect to carbon-containing products formed in the process. The process can be a single-step process, preferably carried out under conditions involving a non-oxidative catalytic coupling of methane, in particular under operating conditions maintained substantially constant, preferably continuously, during the ethane production, e.g. at a temperature ranging from −30° C. to +80° C., preferably from 20° C. to 500° C., under a total absolute pressure ranging from 10−3 to 100 MPa, preferably from 0.1 to 50 MPa. The metal catalyst may be chosen from metal catalysts supported on and preferably grafted to a solid support. One of the main advantages of the present invention is to produce ethane with a very high selectivity.

    摘要翻译: 本发明涉及一种生产乙烷的方法,包括使甲烷与选自金属氢化物,金属有机化合物及其混合物的金属催化剂接触。 它还涉及将甲烷转化为含碳产物的方法,包括使甲烷与包含至少一种金属的金属催化剂接触,所述金属催化剂选自镧系元素,锕系元素和元素周期表第2至12族中的金属 的元素,以便相对于在该方法中形成的含碳产品,以至少65重量%,特别是至少98重量%或99重量%的比例制备乙烷。 该方法可以是单步骤方法,优选在涉及甲烷的非氧化催化偶合的条件下进行,特别是在乙烷生产期间,优选连续保持基本上恒定的操作条件下,例如乙烷生产。 在-30℃至+ 80℃,优选20℃至500℃的温度范围内,在绝对压力范围为10 -3至100MPa, 优选为0.1〜50MPa。 金属催化剂可以选自负载在并优选接枝到固体载体上的金属催化剂。 本发明的主要优点之一是以非常高的选择性生产乙烷。

    Catalyst and prepolymer used for the preparation of polyolefins
    4.
    发明授权
    Catalyst and prepolymer used for the preparation of polyolefins 失效
    用于制备聚烯烃的催化剂和预聚物

    公开(公告)号:US5439995A

    公开(公告)日:1995-08-08

    申请号:US192183

    申请日:1994-02-03

    摘要: The present invention relates to a solid catalyst suitable for polymerizing olefins in a heterogeneous process, the catalyst consisting of spheroidal particles having a narrow particle size distribution and comprising (i) a support containing magnesium dichloride and an electron-donor free from labile hydrogene, (ii) a zirconium metallocene, and (iii) optionally an organoaluminium compound which is an aluminoxane preferably. The solid catalyst may be used in the form of a prepolymer comprising a polyethylene or a copolymer of ethylene and an active zirconium metallocene catalyst essentially consisting of atoms of Zr, Mg, Cl and Al, preferably in the form of spheriodal particles. The solid catalyst or the prepolymer may be used for producing polyethylene or copolymer of ethylene having from 0.5 to 20 ppm of Zr and a molecular weight distribution from 2 to 5, in the form of a powder having a bulk density from 0.3 to 0.55 g/cm.sup.3, preferably consisting of spheroidal particles.

    摘要翻译: 本发明涉及一种适用于在异相方法中聚合烯烃的固体催化剂,该催化剂由具有窄粒度分布的球状颗粒组成,并且包含(i)含有二氯化镁的载体和不含不稳定的氢原子的电子给体( ii)锆茂金属,和(iii)任选的优选铝氧烷的有机铝化合物。 固体催化剂可以以包含聚乙烯或乙烯与主要由Zr,Mg,Cl和Al的原子组成的活性锆茂金属催化剂的共聚物的预聚物的形式使用,优选为球形颗粒形式。 固体催化剂或预聚物可用于生产聚乙烯或具有0.5至20ppm的Zr和分子量分布为2至5的乙烯的共聚物,其形式为堆积密度为0.3至0.55g / cm3,优选由球状颗粒组成。

    Process for preparing a vanadium-based catalyst suitable for olefin
polymerization
    5.
    发明授权
    Process for preparing a vanadium-based catalyst suitable for olefin polymerization 失效
    用于制备适用于烯烃聚合的基于钒的催化剂的方法

    公开(公告)号:US5070054A

    公开(公告)日:1991-12-03

    申请号:US561786

    申请日:1990-08-02

    CPC分类号: C08F210/16 Y10S526/904

    摘要: The present invention relates to a process for preparing a Ziegler-Natta type catalyst based on a vanadium compound precipitated on a MgCl.sub.2 spherical support. The catalyst preparation consists of contacting within a liquid hydrocarbon a vanadium-reducing agent chosen from organometallic compounds with a vanadium compound soluble in the liquid hydrocarbon containing at least one halogen and one alkoxy group, and with a support containing (i) MgCl.sub.2 free from Mg-C bond and (ii) an organic electron donor compound free from labile hydrogen. The support consists of spherical particles having a well-defined diameter and a narrow particle size distribution. The catalyst is particularly suitable for manufacturing in a gas phase process elastomeric copolymers of propylene.

    Process for preparing a vanadium/titanium based catalyst suitable for
olefin polymerization
    6.
    发明授权
    Process for preparing a vanadium/titanium based catalyst suitable for olefin polymerization 失效
    用于制备适用于烯烃聚合的基于钒/钛的催化剂的方法

    公开(公告)号:US5059570A

    公开(公告)日:1991-10-22

    申请号:US563285

    申请日:1990-08-06

    CPC分类号: C08F210/16 Y10S526/904

    摘要: The present invention relates to a process for preparing a Ziegler-Natta type catalyst based on vanadium and titanium compounds precipitated on a MgCl.sub.2 spherical support. The catalyst preparation consists of contacting within a liquid hydrocarbon a vanadium- and titanium-reducing agent chosen from organometallic compounds with a vanadium compound and a titanium compound, both soluble in the liquid hydrocarbon, in a molar ratio V/Ti from 70/30 to 99.5/0.5 and a support containing (i) MgCl.sub.2 free from Mg-C bond and (ii) an organic electron donor compound free from labile hydrogen. The support consists of spherical particles having a well-defined diameter and a narrow particle size distribution. The catalyst is particularly suitable for manufacturing in a gas phase process elastomeric copolymers of propylene.