METHOD FOR SYNTHESIZING METAL OR METAL OXIDE NANOPARTICLES BY LIQUID PHASE DEPOSITION ON THE SURFACE OF A SUBSTRATE
    3.
    发明申请
    METHOD FOR SYNTHESIZING METAL OR METAL OXIDE NANOPARTICLES BY LIQUID PHASE DEPOSITION ON THE SURFACE OF A SUBSTRATE 审中-公开
    通过液相沉积在基底表面合成金属或金属氧化物纳米微粒的方法

    公开(公告)号:US20130337157A1

    公开(公告)日:2013-12-19

    申请号:US13524774

    申请日:2012-06-15

    IPC分类号: H01B13/00 B82Y40/00

    摘要: The present invention relates to a method for synthesizing metal or metal oxide nanoparticles by liquid-phase deposition on a surface layer of a substrate, comprising the following successive steps:—a step of thermally pretreating the conductor or semiconductor surface layer of a substrate, comprising the application of a specified temperature;—a step of impregnating the pretreated surface layer of the substrate with an organometallic complex in solution in an aprotic solvent;—a step of annealing under controlled atmosphere, and wherein the specified temperature is selected to obtain a predefined size of nanoparticles between 4 and 60 nm with a dispersion less than or equal to 30%.The invention is adapted to applications of nanoparticles in the field of microelectronics, optics or catalysis.

    摘要翻译: 本发明涉及通过液相沉积合成金属或金属氧化物纳米颗粒的方法,该方法包括以下连续步骤: - 对基材的导体或半导体表面层进行热处理的步骤,包括 施加规定温度的步骤;在非质子传递溶剂中用溶液中的有机金属络合物浸渍所述基材的预处理表面层的步骤; - 在受控气氛下退火的步骤,其中选择所述指定温度以获得预定的 介于4和60nm之间的纳米颗粒的尺寸,分散度小于或等于30%。 本发明适用于微电子学,光学或催化领域的纳米颗粒的应用。

    Method for Converting Ethylene Into Propylene
    4.
    发明申请
    Method for Converting Ethylene Into Propylene 失效
    将乙烯转化成丙烯的方法

    公开(公告)号:US20080228020A1

    公开(公告)日:2008-09-18

    申请号:US11571602

    申请日:2005-06-27

    IPC分类号: C07C2/02

    摘要: The invention relates to a method for converting ethylene into propylene consisting in reacting said ethylene with a supported metal compound comprising an aluminium oxide based support to which a tungsten hydride is grafted. Said reaction is carried out at a temperature ranging from 20 to 600° C., preferably between 50 and 350° C., at an absolute pressure ranging from 0.01 to 8 MPa, preferably between 0.01 and 1 MPa. A catalyst is regeneratable by introducing hydrogen at a temperature of 50-300° C.

    摘要翻译: 本发明涉及一种将乙烯转化成丙烯的方法,该方法是使所述乙烯与负载型金属化合物反应,该金属化合物包含接枝有氢化钨的氧化铝基载体。 所述反应在20〜600℃,优选50〜350℃的温度下进行,绝对压力为0.01〜8MPa,优选为0.01〜1MPa。 催化剂可以通过在50-300℃的温度下引入氢气来再生

    Process for manufacturing alkanes by reacting other alkanes with methane
    5.
    发明授权
    Process for manufacturing alkanes by reacting other alkanes with methane 失效
    通过使其他烷烃与甲烷反应制备烷烃的方法

    公开(公告)号:US07378564B2

    公开(公告)日:2008-05-27

    申请号:US10502845

    申请日:2003-01-22

    IPC分类号: C07C6/08

    摘要: The present invention relates to a process for the manufacture of alkanes comprising a catalytic reaction resulting from contacting methane with at least one other starting alkane (I) in the presence of a metal compound (C) capable of catalysing a reaction for the splitting and/or recombination of a carbon-carbon bond and/or of a carbon-hydrogen bond and/or of a carbon-metal bond, which catalytic reaction results in the formation of at least one final alkane (II) having a number of carbon atoms equal to or greater than (2). In the process, the contacting operation is carried out under a methane partial pressure equal to or greater than 0.1 MPa, preferably in the range from 0.1 to 100 MPa. The metal compound (C) can be chosen from metal compounds supported on and dispersed over a solid support, metal compounds supported on and grafted to a solid support and non-supported metal compounds. Under these conditions, it was found that the yield of the catalytic reaction was improved, and that the catalytic stability and activity of the metal compound (C) over timer were greatly enhanced.

    摘要翻译: 本发明涉及一种制备烷烃的方法,其包括由甲烷与至少一种其它起始烷烃(I)在能够催化分解和/或反应的反应的金属化合物(C)存在下使甲烷接触而产生的催化反应, 或碳 - 碳键和/或碳 - 氢键和/或碳 - 金属键的重组,该催化反应导致至少一个具有多个碳原子的最终烷烃(II)的形成相等 至(2)以上。 在该过程中,接触操作在等于或大于0.1MPa,优选在0.1至100MPa范围内的甲烷分压下进行。 金属化合物(C)可以选自负载在固体载体上并分散在固体载体上的金属化合物,负载在和接枝到固体载体上的金属化合物和非负载的金属化合物。 在这些条件下,发现催化反应的产率提高,金属化合物(C)超过定时器的催化稳定性和活性大大提高。

    Process for manufacturing alkanes with methane
    8.
    发明授权
    Process for manufacturing alkanes with methane 失效
    用甲烷制造烷烃的方法

    公开(公告)号:US06727397B2

    公开(公告)日:2004-04-27

    申请号:US10040495

    申请日:2002-01-09

    IPC分类号: C07C608

    摘要: The present invention relates to a process for manufacturing alkanes, comprising, as main stage, a reaction resulting from bringing methane into contact with at least one other starting alkane (A) in the presence of a catalyst based on a metal M capable of catalyzing a metathesis of alkanes. The reaction results in the formation of at least one or two final alkanes (B) having a number of carbon atoms less than or equal to that of the starting alkane (A) and at least equal to 2. Preferably the catalyst comprises a hydride of a metal M grafted to and dispersed over a solid support. The metal M may be chosen from transition metals, lanthanides and actinides. The present invention also relates to the use of a catalyst capable of catalyzing a metathesis of alkanes in 3 reaction resulting from bringing methane into contact with at least one other starting alkane (A).

    摘要翻译: 本发明涉及一种制备烷烃的方法,该方法主要包括在催化剂存在下使甲烷与至少一种其它起始烷烃(A)接触而产生的反应,所述催化剂基于能够催化一种 烷烃的复分解。 反应导致至少一种或两种具有小于或等于起始烷烃(A)的碳原子的最终烷烃(B)的形成,并且至少等于2.优选地,催化剂包含 金属M接枝并分散在固体支持物上。 金属M可以选自过渡金属,镧系元素和锕系元素。 本发明还涉及能够在使甲烷与至少一种其它起始烷烃(A)接触的情况下,在3反应中催化烷烃的复分解的催化剂的用途。

    Method for converting ethylene into propylene
    9.
    发明授权
    Method for converting ethylene into propylene 失效
    乙烯转化成丙烯的方法

    公开(公告)号:US07638672B2

    公开(公告)日:2009-12-29

    申请号:US11571602

    申请日:2005-06-27

    IPC分类号: C07C6/04

    摘要: The invention relates to a method for converting ethylene into propylene consisting in reacting said ethylene with a supported metal compound comprising an aluminium oxide based support to which a tungsten hydride is grafted. Said reaction is carried out at a temperature ranging from 20 to 600° C., preferably between 50 and 350° C., at an absolute pressure ranging from 0.01 to 8 MPa, preferably between 0.01 and 1 MPa. A catalyst is regeneratable by introducing hydrogen at a temperature of 50-300° C.

    摘要翻译: 本发明涉及一种将乙烯转化成丙烯的方法,该方法是使所述乙烯与负载型金属化合物反应,该金属化合物包含接枝有氢化钨的氧化铝基载体。 所述反应在20〜600℃,优选50〜350℃的温度下进行,绝对压力为0.01〜8MPa,优选为0.01〜1MPa。 催化剂可以通过在50-300℃的温度下引入氢气来再生

    Process for converting methane into ethane
    10.
    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。