PRODUCTION OF SILANES-SILICON ALLOYS AND ALKALINE-EARTH METALS OR ALKALINE-EARTH METAL SILICIDES AND

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Preparing a silane compound or its mixture, comprises grinding pieces of silicide or silicon alloy to form powder whose particles have a diameter of 10-500 mu m, introducing the obtained alloy powder in a reactor, introducing hydrochloric acid in the reactor, and reacting the introduced reactants in the reactor. Preparing a silane compound or its mixture of formula (Si nH 2 n + 2) (I), comprises grinding pieces of silicide or silicon alloy having a structure of formula (M 1> xM 2> ySi z) (II) to form powder whose particles have a diameter of 10-500 mu m, introducing the obtained alloy powder in a reactor, introducing hydrochloric acid in the reactor, and reacting the introduced reactants in the reactor. M 1>a reducing metal; M2 : an alkali or alkaline earth metal; x-z : 0 -1; and n : 1-3.