Dow Corning Corporation

Bruce Robert Crum

Larry Herbert Wood

Steven K Freeburne

Robert F Jarvis, Jr

Brian M Naasz

Jonathan Ashley Brinson

Jeffrey Scott Smith

Corey Grant Knutson

A process for the production of monosilanes from the high-boiling residue resulting from the reaction of hydrogen chloride with silicon metalloid in a process typically referred to as the 'direct process.' The process comprises contacting a high-boiling residue resulting from the reaction of hydrogen chloride and silicon metalloid, with hydrogen gas in the presence of a catalytic amount of aluminum trichloride effective in promoting conversion of the high-boiling residue to monosilanes. The present process results in conversion of the high-boiling residue to monosilanes. At least a portion of the aluminum trichloride catalyst required for conduct of the process may be formed in situ during conduct of the direct process and isolation of the high-boiling residue.

Conversion of direct process high-boiling residue to monosilanes

A process for separating a gaseous mixture comprising C.sub.1 chlocarbons and noncondensible gases into a liquid component comprising the C.sub.1 chlorocarbons and a component comprising the noncondensible gases. The method employs a liquid hydrocarbon having an average molecular weight within a range of about 142 to 422 to adsorb the C.sub.1 chlorocarbons from the gaseous mixture. The present process is especially useful for separating methyl chloride from a gaseous mixture resulting from an oxychlorination process where the gaseous mixture further comprises, methane, water vapor, and hydrogen chloride.

Process for recovery of methyl chloride

A process for converting a high-boiling fraction resulting from the reaction of methyl chloride with silicon metalloid in a process typically referred to as the 'direct process' to monosilanes. The process comprises contacting a high-boiling fraction comprising polymeric silicon containing compound resulting from the reaction of methyl chloride with silicon metalloid, with hydrogen gas in the presence of an amount of lithium aluminum hydride catalyst effective in promoting conversion of the polymeric silicon containing compounds to monosilanes.

Process for converting polymeric silicon containing compounds to

A process for converting a high-boiling fraction resulting from the reaction of methyl chloride with silicon metalloid in a process typically referred to as the 'direct process' to monosilanes. The process comprises forming a mixture comprising a low-boiling fraction comprising monosilanes and a high-boiling fraction comprising polymeric silicon containing compounds and contacting the mixture with hydrogen gas in the presence of a catalyst effective in promoting conversion of the polymeric silicon containing compounds to monosilanes. The process results in conversion of the high-boiling fraction to monosilanes. At least a portion of the catalyst present may be formed in situ during conduct of the direct process and isolation of the fractions.

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Madison, IN, United States of America

Bruce Robert Crum