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    • 5. 发明公开
    • PROCESS FOR PREPARING TRIALKYL COMPOUNDS OF METALS OF GROUP IIIA
    • 制备IIIIA族金属三烷基化合物的方法
    • EP2785725A1
    • 2014-10-08
    • EP12798251.0
    • 2012-11-28
    • Umicore AG & Co. KG
    • KARCH, RalfRIVAS-NASS, AndreasFREY, AnnikaBURKERT, TobiasWOERNER, EileenDOPPIU, Angelino
    • C07F5/00C23C16/00
    • C07F5/00C23C16/18C23C16/301Y02P20/582
    • The invention relates to a process for preparing trialkylmetal compounds of the general formula R
      3 M (where M = metal of group llIA of the Periodic Table of the Elements (PTE), preferably gallium or indium, and R = C
      1 -C
      5 -alkyl, preferably methyl or ethyl). The process is based on the reaction of metal trichloride (MeCl
      3 ) with alkylaluminium sesquichloride (R
      3 AI
      2 CI
      3 ) in the presence of at least one alkali metal halide as auxiliary base. The reaction mixture is heated to a temperature above 120°C and the trialkylmetal compound is separated off from the reaction mixture via a separator, with partially alkylated products being at the same time recirculated to the reaction mixture. In a further step, the reaction mixture is heated to a maximum of 350°C and the remaining alkylated and partially alkylated products are separated off. The products obtained in this way can optionally be recycled in the process. The process displays a high yield of trialkylmetal compound and also a high metal utilization; the products are used as precursors for MOCVD processes.
    • 本发明涉及制备通式R 3 M(其中M =元素周期表中IIIA族金属(PTE),优选镓或铟,以及R = C 1 -C 5烷基的金属的三烷基金属化合物的方法 ,优选甲基或乙基)。 该方法基于三氯化金(MeCl 3)与烷基铝倍半氯化物(R 3 Al 2 Cl 3)在至少一种碱金属卤化物作为辅助碱存在下的反应。 将反应混合物加热至120℃以上,并通过分离器将三烷基金属化合物从反应混合物中分离出来,同时将部分烷基化的产物再循环至反应混合物中。 在进一步的步骤中,将反应混合物加热至最高350℃,并分离剩余的烷基化和部分烷基化产物。 以这种方式获得的产品可以任选地在该过程中再循环。 该方法显示出高收率的三烷基金属化合物以及高金属利用率; 该产品被用作MOCVD工艺的前体。
    • 10. 发明公开
    • VERFAHREN ZUR HERSTELLUNG VON ALKYLINDIUM-VERBINDUNGEN UND DEREN VERWENDUNG
    • EP3036242A1
    • 2016-06-29
    • EP14752341.9
    • 2014-08-18
    • Umicore AG & Co. KG
    • SUNDERMEYER, JoergFREY, AnnikaSCHORN, WolfGROSSE-HAGENBROCK, DavidKARCH, RalfRIVAS-NASS, AndreasWOERNER, EileenDOPPIU, Angelino
    • C07F5/00B01J19/12
    • C07F5/00
    • The invention relates to a method for the cost-effective and environmentally friendly production of dialkyl indium chloride in high yield and with high selectivity and purity. The dialkyl indium chloride produced according to the invention is particularly suitable, also as a result of the high purity and yield, for the production, on demand, of indium-containing precursors in high yield and with high selectivity and purity. As a result of the high purity, the indium-containing precursors that can be produced are particularly suitable for metal organic chemical vapour deposition (MOCVD) or metal organic vapour phase epitaxy (MOVPE). The novel method according to the invention is characterised by the improved execution of the method, in particular a rapid process control. Owing to targeted and extensive use of raw materials that are cost-effective and have a low environmental impact, the method is also suitable for use on an industrial scale.
    • 本发明涉及一种以高产率且高选择性和纯度的高成本效益且环境友好地生产氯化二烷基铟的方法。 根据本发明生产的二烷基氯化铟特别适用于高产率且高选择性和纯度的含铟前体的高纯度和高产率。 由于高纯度,可生产的含铟前体特别适用于金属有机化学气相沉积(MOCVD)或金属有机气相外延(MOVPE)。 根据本发明的新颖方法的特征在于该方法的改进的执行,特别是快速的过程控制。 由于具有成本效益且对环境影响较小的原材料的针对性和广泛使用,该方法也适用于工业规模。