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254 条记录 (耗时 0.014 秒)

    Process for the preparation of alkylhalosilanes
    13.
    发明授权
    Process for the preparation of alkylhalosilanes 失效
    制备烷基卤代硅烷的方法

    公开(公告)号：US5880307A

    公开(公告)日：1999-03-09

    申请号：US24378

    申请日：1998-02-17

    申请人： Richard Dewayne Daugherty ,  Steven Kerry Freeburne ,  Paul Jacques Marion ,  Oliver K. Wilding, Jr.

    发明人： Richard Dewayne Daugherty ,  Steven Kerry Freeburne ,  Paul Jacques Marion ,  Oliver K. Wilding, Jr.

    IPC分类号： B01J27/122 ,  C07B61/00 ,  C07F7/16

    CPC分类号： C07F7/16

    摘要： A process for the use of water granulated silicon in the preparation of alkylhalosilanes. The process comprises contacting an alkyl halide described by formula RX, with a particulate water granulated silicon containing greater than 0.5 to about 5.0 weight percent iron, in the presence of a catalyst composition comprising copper, at a temperature within a range of about 250.degree. C. to 350.degree. C. where R is selected from the group consisting of alkyls comprising one to about four carbon atoms and X is a halogen.

    摘要翻译： 一种在制备烷基卤硅烷中使用水粒状硅的方法。 该方法包括在包含铜的催化剂组合物存在下，在约250℃的温度范围内使式RX所述的烷基卤与含有大于0.5至约5.0重量百分比的铁的颗粒状水粒状硅 至350℃，其中R选自包含1至约4个碳原子的烷基，X为卤素。

    Preparation of silanes
    16.
    发明授权
    Preparation of silanes 失效
    硅烷的制备

    公开(公告)号：US5712405A

    公开(公告)日：1998-01-27

    申请号：US781207

    申请日：1997-01-10

    申请人： Hiroshi Nakayama ,  Hiroshi Tsumura ,  Tetsuo Nakanishi ,  Yukinori Satoh

    发明人： Hiroshi Nakayama ,  Hiroshi Tsumura ,  Tetsuo Nakanishi ,  Yukinori Satoh

    IPC分类号： B01J23/84 ,  C07B61/00 ,  C07F7/08 ,  C07F7/12 ,  C07F7/16

    CPC分类号： C07F7/16

    摘要： An (alkylhalo)silane is prepared by using a fluidized bed reactor equipped with a feed line for reactant gas and a delivery line for product gas, charging the reactor with a contact mass comprising metallic silicon powder and a copper catalyst, and feeding a reactant gas containing an alkyl halide through the feed line into the reactor whereby the silane is formed by direct synthesis. A dust collector is connected to the delivery line for collecting the contact mass carried over with the product gas, which is fed back to the reactor. The feed of the reactant gas is controlled such that a linear velocity multiplied by a density may range from 0.2-2 kg/m.sup.2 .multidot.sec.

    摘要翻译： 通过使用配备有反应气体的进料管线和产物气体的输送管线的流化床反应器制备（烷基卤代）硅烷，用包括金属硅粉末和铜催化剂的接触物料装入反应器，并将反应气体 含有通过进料管线的烷基卤化物进入反应器，由此通过直接合成形成硅烷。 集尘器连接到输送管线，用于收集被反馈到反应器的产物气体携带的接触物质。 控制反应气体的进料使得乘以密度的线速度可以在0.2-2kg / m2×sec的范围内。

    Asymmetrically substituted metallocenes which are functionalized on one cyclopentadienyl ring, and their preparation
    17.
    发明授权
    Asymmetrically substituted metallocenes which are functionalized on one cyclopentadienyl ring, and their preparation 失效
    在一个环戊二烯基环上官能化的不对称取代的金属茂及其制备方法

    公开(公告)号：US5618956A

    公开(公告)日：1997-04-08

    申请号：US685994

    申请日：1996-07-25

    申请人： Richard Lisowsky

    发明人： Richard Lisowsky

    IPC分类号： C07F17/00 ,  C07F7/08 ,  C07F7/16

    CPC分类号： C07F17/00

    摘要： The invention relates to compounds of the general formula (1)(R.sup.1 R.sup.2 X.sup.1 Si((R.sup.3).sub.a Cp))((R.sup.4).sub.a Cp)M(X.sup.2).sub.n (1)in whichR.sup.1 and R.sup.2 =independently of one another an alkyl or aryl radical,X.sup.1 =F, Cl, Br, I, p-tolylSO.sub.3 --, F.sub.3 CSO.sub.3 --, F.sub.3 CCO.sub.2 -- or H.sub.3 CCO.sub.2 --,R.sup.3 and R.sup.4 =identical or different alkyl, alkyl ether, aryl or aryl ether groups where 0.ltoreq.a.ltoreq.4,Cp=a cyclopentadienyl, indenyl, tetrahydroindenyl or fluorenyl radical,M=a transistion metal from groups 3-6 (IUPAC notation), in particular Ti, Zr or Hf,X.sup.2 =F, Cl, Br or I,the oxidation number of the transition metal minus 2.Also disclosed is a process of making compounds of formula (1) by reacting the metallocene counterpart thereof with acid HX.sup.1.

    摘要翻译： 本发明涉及通式（1）的化合物（R1R2X1Si（（R3）aCp））（（R4）aCp）M（X2）n（1），其中R1和R2彼此独立地为烷基或芳基 ，X1 = F，Cl，Br，I，对甲苯基SO3-，F3CSO3-，F3CCO2-或H3CCO2-，R3和R4 =相同或不同的烷基，烷基醚，芳基或芳基醚基团，其中0 < = 4，Cp =环戊二烯基，茚基，四氢茚基或芴基，M =第3-6族（IUPAC符号）的转座金属，特别是Ti，Zr或Hf，X2 = F，Cl，Br或I，氧化 过渡金属的数目减去2.还公开了通过使金属茂对应物与酸HX1反应制备式（1）的化合物的方法。

    Method for redistribution and purification of methylsilanes
    18.
    发明授权
    Method for redistribution and purification of methylsilanes 失效
    甲硅烷的再分配和纯化方法

    公开(公告)号：US5493043A

    公开(公告)日：1996-02-20

    申请号：US441171

    申请日：1995-05-15

    申请人： Ollie W. Marko

    发明人： Ollie W. Marko

    IPC分类号： C07F7/12 ,  C07F7/16 ,  C07F7/20

    CPC分类号： C07F7/128 ,  C07F7/20

    摘要： A redistribution process for enriching a low-boiling methylsilane mixture in a methylchlorosilane selected from a group consisting of dimethylhydrochlorosilane and trimethylchlorosilane. The process comprises contacting a low-boiling methylsilane mixture, resulting from the contact of methyl chloride with silicon, with alumina under non-equilibrium conditions at a temperature greater than about 150.degree. C. The present inventors have discovered that the concentrations of dimethylhydrochlorosilane and trimethylchlorosilane reach maximum levels under non-equilibrium conditions occurring at a temperature greater than about 150.degree. C. The process is also useful for facilitating the removal of olefin and chlorocarbon organic contaminants from the low-boiling methylsilane mixture.

    摘要翻译： 一种用于富集选自二甲基氢氯硅烷和三甲基氯硅烷的甲基氯硅烷中的低沸点甲基硅烷混合物的再分配方法。 该方法包括使甲基氯与硅的接触产生的低沸点甲基硅烷混合物与氧化铝在非平衡条件下在大于约150℃的温度下接触。本发明人发现，二甲基氢氯硅烷和三甲基氯硅烷的浓度 在高于约150℃的温度下在非平衡条件下达到最大水平。该方法也可用于促进从低沸点甲基硅烷混合物中除去烯烃和氯烃有机污染物。