A process for preparing a reaction product including a halosilane includes: contacting an unsaturated hydrocarbyl halide and a ternary intermetallic compound at a temperature of 300° C. to 700° C. to form the reaction product. The ternary intermetallic compound includes copper, silicon and a transition metal. The halosilane in the reaction product has formula R1.sub.mR.sup.2.sub.n—H.sub.oSiX.sub.(4-m-n-o)> where each R.sup.1 is independently a saturated monovalent hydrocarbyl group, each R.sup.2 is independently an unsaturated monovalent hydrocarbyl group; each X is independently a halogen atom; subscript m is 1, 2, or 3; subscript n is 0, 1, or 2; subscript o is 0, 1, or 2; and a quantity (m+n+o) is 1, 2, or 3. At least a portion of the unsaturated hydrocarbyl groups in the unsaturated by drocarbyl halide are converted to saturated hydrocarbyl groups (R.sup.1) in the halosilane.

Disclosed is a method for making alkylhalosilanes from an alkyl halide and silicon in the presence of the catalyst package comprising metallic aluminum dispersed throughout a copper catalyst. Also disclosed in some embodiments is a catalyst package comprising metallic aluminum dispersed throughout a copper catalyst. In some embodiments the catalyst package comprises a copper catalyst comprised of a metallic copper/cuprous oxide/cupric oxide granular particulate catalyst and a copper-aluminum alloy.

Disclosed is a method for making alkylhalosilanes from an alkyl halide and silicon in the presence of the catalyst package comprising metallic aluminum dispersed throughout a copper catalyst. Also disclosed in some embodiments is a catalyst package comprising metallic aluminum dispersed throughout a copper catalyst. In some embodiments the catalyst package comprises a copper catalyst comprised of a metallic copper/cuprous oxide/cupric oxide granular particulate catalyst and a copper-aluminum alloy.

A process for producing methylchlorosilanes of general formula 1, (CH.sub.3).sub.nH.sub.mSiCl.sub.4-n-m, in which n represents values from 1 to 3 and m represents values of 0 or 1 in a fluidized bed reactor is provided. A chloromethane-containing reaction gas is reacted with a particulate contact mass containing silicon in the presence of copper catalyst. An operating granulation contains at least 1% by mass of silicon-containing particles S described by a structural parameter S. S has a value of at least 0 and is calculated according to equation (1),

[00001]$S=\left({\phi }_s-0.70\right).Math.\frac{{\rho }_{\mathrm{SD}}}{{\rho }_F},$

wherein φ.sub.S is symmetry-weighted sphericity factor, ρ.sub.SD is poured density [g/cm.sup.3], and ρ.sub.F is average particle solids density [g/cm.sup.3].

A process for producing methylchlorosilanes of general formula 1, (CH.sub.3).sub.nH.sub.mSiCl.sub.4-n-m, in which n represents values from 1 to 3 and m represents values of 0 or 1 in a fluidized bed reactor is provided. A chloromethane-containing reaction gas is reacted with a particulate contact mass containing silicon in the presence of copper catalyst. An operating granulation contains at least 1% by mass of silicon-containing particles S described by a structural parameter S. S has a value of at least 0 and is calculated according to equation (1),

[00001]$S=\left({\phi }_s-0.70\right).Math.\frac{{\rho }_{\mathrm{SD}}}{{\rho }_F},$

wherein φ.sub.S is symmetry-weighted sphericity factor, ρ.sub.SD is poured density [g/cm.sup.3], and ρ.sub.F is average particle solids density [g/cm.sup.3].

Organochlorosilanes are produced by reacting, in a fluidized bed reactor, a chloromethane-containing reactant gas with a particulate contact mass containing silicon and a catalyst, wherein the organochlorosilanes have the general formula (CH.sub.3).sub.nHSiCl.sub.4-n-m where n=1 to 3 and m=0 or 1, wherein the process is characterized by three dimensions indices K1-K3, which are respectively associated with the reactor, the contact mass, and the reaction conditions, and which are maintained within specified bounds.

Organochlorosilanes are produced by reacting, in a fluidized bed reactor, a chloromethane-containing reactant gas with a particulate contact mass containing silicon and a catalyst, wherein the organochlorosilanes have the general formula (CH.sub.3).sub.nHSiCl.sub.4-n-m where n=1 to 3 and m=0 or 1, wherein the process is characterized by three dimensions indices K1-K3, which are respectively associated with the reactor, the contact mass, and the reaction conditions, and which are maintained within specified bounds.

The invention provides disilenes, germasilenes and neopentatetrelanes, a method for the preparation thereof and use thereof.

The invention provides disilenes, germasilenes and neopentatetrelanes, a method for the preparation thereof and use thereof.

Organochlorosilanes are produced by reacting, in a fluidized bed reactor, a chloromethane-containing reactant gas with a particulate contact mass containing silicon and a catalyst, wherein the organochlorosilanes have the general formula (CH.sub.3).sub.nHSiCl.sub.4-n-m where n=1 to 3 and m=0 or 1, wherein the process is characterized by three dimensions indices K1-K3, which are respectively associated with the reactor, the contact mass, and the reaction conditions, and which are maintained within specified bounds.