| 摘要 |
ORGANOHALOSILANES ARE PREPARED BY THE ROCHOW PROCESS OF REACTING METALLIC SILICON PARTICLES WITH AN ORGANOHALIDE IN THE PRESENCE OF A COPPER CATALYST. THE METALLIC SILICON PARTICLES, WHICH ARE PREPARED BY COMMINUTING FRAGMENTS OF METALLIC SILICON RAW MATERIAL, HAVE A MEAN PARTICLE SIZE OF 10 µM TO 10 MM AND A SURFACE OXYGEN QUANTITY OF AT LEAST 0.05 WTAND/OR AT LEAST 0.001 G OF OXYGEN/M2 OF SILICON SURFACE AREA, WHICH IS GIVEN AS THE DIFFERENCE BETWEEN THE OXYGEN CONCENTRATIONS DETERMINED BY IN-METAL OXYGEN ANALYSIS OF THE METALLIC SILICON PARTICLES AND THE FRAGMENTS, RESPECTIVELY. ON ANALYSIS, THE METALLIC SILICON PARTICLES HAVE BEEN HELD FOR AT LEAST 3 HOURS IN AN AIR ATMOSPHERE AT 25°C AND RH 55 (FIGURE 1)
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