Production of silicon metal from dichlorosilane
Abstract
Abstract THE PROCESS OF PRODUCING SILICON METAL FROM A CHLOROSILANE WHEREBY TO OBTAIN IMPROVED YIELDS AND RATES OF PRODUCTION OF SILICON METAL, BASED ON THE AMOUNT OF SILICON IN THE CHLOROSILANE USED TO PRODUCE THE SILICON METAL, WHICH COMPRISES PROVIDING DICHLOROSILANE GAS IN ADMIXTURE WITH HYDROGEN GAS IN A REACTION ZONE HAVING A TEMPERATURE SUFFICIENT TO EFFECT THE REDUCTION AND DECOMPOSITION OF SAID DICHLOROSILANE TO SILICON METAL AND MAINTAINING THE TEMPERATURE AT WHICH SAID REACTION IS EFFECTED AND THE RESIDENCE TIME OF SAID DICHLOROSILANE IN SAID REACTION ZONE SUFFICIENT TO PROVIDE YIELDS OF SILICON METAL OF AT LEAST 50 PERCENT. IN ADDITION, THIS PROCESS PROVIDES A SUBSTANTIAL REDUCTION IN THE AMOUNT OF BYPRODUCT SCL4 AS COMPARED WITH SILICON METAL MAKING PROCESSES WHICH EMPLOY TRICHLOROSILANE AS THE SILICON SOURCE.
Inventors
- 👤 H Bradley
- 👤 M Jellinek
Bibliographic Details
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