Procedure for gas-phase polymerication of ethylene allowing the
fabrication of linear polyethylene with a narrow molecular-weight
distribution
    13.
    发明授权
    Procedure for gas-phase polymerication of ethylene allowing the fabrication of linear polyethylene with a narrow molecular-weight distribution 失效
    用于具有窄分子量分布的线性聚乙烯的制备的乙烯的气相聚合方法

    公开(公告)号:US5055535A

    公开(公告)日:1991-10-08

    申请号:US447670

    申请日:1989-12-08

    摘要: A process for the manufacture of a linear polyethylene with narrow molecular-weight distribution comprising polymerizing ethylene alone or a mixture of ethylene and an alpha-olefin in which ethylene represents at least about 70% by weight of the total monomers involved, in a gas-phase polymerization medium in the presence of a catalytic component containing at least one transition metal, magnesium, and a halogen, a co-catalyst comprising an alkylaluminum compound, and a monoether, the monoether having the general formula R'OR", wherein R' and R" are the same or different and each is a C.sub.1 to C.sub.8 linear or branched hydrocarbon radical or being a cyclic monoether with the oxygen forming a ring having 4 to 12 carbon atoms.

    摘要翻译: 一种用于制造具有窄分子量分布的线性聚乙烯的方法,包括聚合单独的乙烯或乙烯和α-烯烃的混合物,其中乙烯占所涉及的总单体的至少约70重量% 在含有至少一种过渡金属,镁和卤素的催化组分存在下,包含烷基铝化合物的助催化剂和单醚,具有通式R'OR“的单醚,其中R '和R“相同或不同,并且各自为C1至C8直链或支链烃基,或者是氧形成具有4至12个碳原子的环的环状单醚。

    Aliphatic alkylation utilizing a liquid catalyst
    14.
    发明授权
    Aliphatic alkylation utilizing a liquid catalyst 失效
    使用液体催化剂的脂肪族烷基化

    公开(公告)号:US6096939A

    公开(公告)日:2000-08-01

    申请号:US115546

    申请日:1998-07-15

    摘要: The invention concerns the catalytic alkylation of at least one isoparaffin selected from the group formed by isobutane and isopentane in the presence of at least one olefin containing 3 to 6 carbon atoms per molecule, using a catalyst comprising 40% to 99% by weight of an acid selected from acids with formula R--SO.sub.3 H where R is fluorine or an alkyl group or a fluorinated alkyl group, R preferably being F or CF.sub.3, and more preferably CF.sub.3, and 1% to 60% by weight of a solvent selected from the group formed by sulpholane, dimethylsulphoxide and dioxanes, preferably sulpholane.

    摘要翻译: 本发明涉及至少一种选自异丁烷和异戊烷的异构烷烃在至少一种含有3至6个碳原子的烯烃存在下,每分子的催化烷基化,使用包含40-99%(重量) 选自具有式R-SO 3 H的酸的酸,其中R是氟或烷基或氟化烷基,R优选为F或CF 3,更优选为CF 3,和1至60重量%的选自以下的溶剂: 由环丁烷,二甲基亚砜和二恶烷形成,优选为环丁烷。

    Method of producing liquid hydrocarbons from natural gas, in the
presence of a catalyst based on zeolite and gallium
    19.
    发明授权
    Method of producing liquid hydrocarbons from natural gas, in the presence of a catalyst based on zeolite and gallium 失效
    在基于沸石和镓的催化剂存在下,从天然气生产液态烃的方法

    公开(公告)号:US5288935A

    公开(公告)日:1994-02-22

    申请号:US886226

    申请日:1992-05-21

    摘要: The invention concerns a method of producing liquid hydrocarbons from natural gas, characterized in that:a) the natural gas is separated in (2) into at least two fractions, a first fraction of gas enriched with methane and a second fraction enriched with C2+ alkanesb) the methane is selectively oxidised in (7a) by molecular oxygen in the presence of a catalyst for oxidizing linkage of methanec) the fraction enriched with C2+ alkanes is at least partly mixed with the effluent from selective oxidation, when at least 80% of the molecular oxygen introduced at stage (b) has already been consumed at stage (b)d) the mixture resulting from stage (c) is pyrolysed in (7b)e) when the temperature of the mixture from stage (d) has been brought to a temperature from 300.degree. to 750.degree. C. and more particularly from 420.degree. to 550.degree. C., at least part of the olefins is converted to aromatics in (11c), in the presence of a special catalyst containing a zeolite, gallium, one or more Group VIII metals and/or rhenium, one or more additional metals selected from tin, lead, indium, germanium and thallium, possibly an alkali metal or alkaline earth metal and possibly a matrix.

    摘要翻译: 本发明涉及从天然气生产液体烃的方法,其特征在于:a)将天然气在(2)中分离成至少两个馏分,富含甲烷的第一部分气体和富含C2 +烷烃的第二馏分 b)在用于氧化甲烷连接的催化剂的存在下,通过分子氧在(7a)中甲烷被选择性氧化c)富含C 2 +烷烃的级分至少部分地与来自选择性氧化的流出物混合,当至少80% 在步骤(b)中引入的分子氧已经在阶​​段(b)d被消耗)d)当从步骤(d)得到的混合物的温度已经 使温度从300摄氏度到750摄氏度,更特别是从420摄氏度到550摄氏度,在含有沸石的特殊催化剂的存在下,至少部分烯烃转化为(11c)中的芳族化合物, 镓,一种或一种 Ⅷ族金属和/或铼,选自锡,铅,铟,锗和铊中的一种或多种另外的金属,可能是碱金属或碱土金属以及可能的基质。

    Process for preparing aluminophosphate compounds and substituted
derivatives of the structural type VFI
    20.
    发明授权
    Process for preparing aluminophosphate compounds and substituted derivatives of the structural type VFI 失效
    制备结构型VFI的氨基磷酸酯化合物和取代衍生物的方法

    公开(公告)号:US5241093A

    公开(公告)日:1993-08-31

    申请号:US822852

    申请日:1992-01-21

    IPC分类号: B01J29/83 C01B37/04 C01B37/08

    CPC分类号: B01J29/83 C01B37/04 C01B37/08

    摘要: A process for preparing aluminophosphate compounds (and substituted derivatives) of the structural type VFI. This preparation process is characterized in that the speed of increase in temperature of the reaction mixture is greater than 250.degree. C./hour, the total time of heating of the reaction mixture, including the rise in temperature and the plateau heating, being less than one hour. The temperature of the plateau heating is between 100.degree. and 200.degree. C.The synthetic compounds in accordance with the invention possess(a) a general formula approximating to the following:1 Al.sub.2 O.sub.3 0.75-1.25 P.sub.2 O.sub.5 0-0.5 XO.sub.n/2 0-0.05 R y H.sub.2 OwhereX represents a heteroatom chosen from the group consisting of silicon, cobalt, magnesium and zinc;n is the degree of oxidation of the heteroatom X;y, the number of water molecules contained in the said compound, is greater than 0.001; andR is an organic compound chosen from the group consisting of secondary amines, tertiary amines, and quaternary ammonium salts and hydroxides;(b) an X-ray diffraction diagram as represented in Table I of the description.

    摘要翻译: 制备结构型VFI的磷酸铝化合物(和取代的衍生物)的方法。 该制备方法的特征在于,反应混合物的温度升高速度大于250℃/小时,反应混合物的总加热时间(包括温度升高和平台加热)小于 一小时。 平台加热的温度为100至200℃。根据本发明的合成化合物具有(a)接近于以下的通式:1 Al 2 O 3 0.75-1.25 P 2 O 5 0-0.5 XOn / 2 0-0.05 其中X表示选自硅,钴,镁和锌的杂原子; n是杂原子X的氧化度; y,所述化合物中含有的水分子数目大于0.001; 并且R是选自仲胺,叔胺和季铵盐和氢氧化物的有机化合物; (b)如说明书的表I所示的X射线衍射图。