| 摘要 |
The present invention is directed to a process for the synthesis of organohalosilane monomers, comprising the steps of (1) forming a slurry of cyclone fines, ultra fines and/or spent contact mass in a thermally stable solvent and reacting the agitated slurry with an organohalide of the formula R1X in the presence of an additive for a time and at a temperature sufficient to produce organohalosilane monomers having the formulae R1SiHX2, R12SiHX, R13SiX, R1SiX3, and R12SiX2; wherein R1 is a saturated or unsaturated aromatic group, a saturated or unsaturated aliphatic group, alkaryl group, or cycloaliphatic hydrocarbyl group, and X is a halogen; and (2) recovering said organohalosilane monomers. |
| 主权项 |
1. A process for the synthesis of organohalosilane monomers, comprising the steps of:
(1) forming a slurry of cyclone fines, ultra fines and/or spent contact mass in a thermally stable solvent and reacting the agitated slurry with at least one organohalide of the formula R1X and optionally organohalosilane and/or hydrogen halide in the presence of an additive selected from the group consisting of dialkylpolyethers, podands, secondary amines, terpenes, diterpenes, triterpenes, nitrohydrocarbons, nitriles, hexamethyldisiloxane, polydimethylsiloxanes having a viscosity of from 5 to 100 cSt, and mixtures thereof for a reaction time and at a temperature and pressure sufficient to produce organohalosilane monomers having the formulae R1 SiHX2, R12SiHX, R13SiX, R1SiX3, and R12SiX2 or mixtures thereof; wherein R1 is a saturated or unsaturated aromatic group, a saturated or unsaturated aliphatic group, alkaryl group, or cycloaliphatic hydrocarbyl group, and X is a halogen; and (2) recovering said organohalosilane monomers from said solvent. |
