首页>
外国专利>
Production of (organo)halosilanes, used in pyrolysis to recover pure silicon and silicon tetrahalide, uses microwave energy in reacting silicon with e.g. halogen, organohalogen compound, hydrogen halide, halosilane or mixture
Production of (organo)halosilanes, used in pyrolysis to recover pure silicon and silicon tetrahalide, uses microwave energy in reacting silicon with e.g. halogen, organohalogen compound, hydrogen halide, halosilane or mixture
Production of (organo)halosilanes (I) with 1-4 fluorine, chlorine and/or bromine atoms comprises using microwave energy in reacting silicon (Si) with mixtures of elements or compounds selected from halogens, organohalogen compounds, hydrogen halides, fluorosilanes, chlorohydrosilanes or organohalosilanes and/or hydrocarbons. Production of (organo)halosilanes of formula (I): RaHbSiXc comprises using microwave energy in reacting silicon (Si) with mixtures of elements or compounds selected from: (1) halogens and optionally organohalogen compounds (II), hydrogen (H2) or hydrogen halides (HX); (2) (II) and optionally H2 or HX; (3) HX; (4) fluorosilanes, chlorohydrosilanes or organohalosilanes with H2 or HX; or (5) hydrocarbons and HX. R = (un)substituted 1-10 C alkyl or aryl, in which one or more C atoms may be replaced by -CO-, -CO2-, -O-, -S-, -SO-, -SO2-, -NH- or -NR'-; R' = (un)substituted 1-20 C alkyl; X = F, Cl or Br; a, b = 0, 1, 2 or 3; c = 1, 2, 3 or 4.
展开▼
机译:具有1-4个氟,氯和/或溴原子的(有机)卤代硅烷(I)的生产包括使用微波能使硅(Si)与选自卤素,有机卤素化合物,卤化氢,氟代硅烷,氯代氢硅烷的元素或化合物的混合物反应或有机卤代硅烷和/或烃。式(I)的(有机)卤代硅烷的制备:RaHbSiXc包括使用微波能使硅(Si)与选自以下元素或化合物的混合物反应:(1)卤素和可选的有机卤素化合物(II),氢(H2)或氢卤化物(HX); (2)(II)以及可选的H2或HX; (3)HX; (4)具有H2或HX的氟代硅烷,氯代氢硅烷或有机卤代硅烷;或(5)碳氢化合物和HX。 R =(未)取代的1-10个碳原子的烷基或芳基,其中一个或多个碳原子可被-CO-,-CO2-,-O-,-S-,-SO-,-SO2-,-取代NH-或-NR'-; R'=(未)取代的1-20个碳的烷基; X = F,Cl或Br; a,b = 0、1、2或3; c = 1、2、3或4。
展开▼