Rochow process
E610296
The Rochow process is an industrial chemical method for directly synthesizing organosilicon compounds, especially methylchlorosilanes used in silicone production, by reacting methyl chloride with silicon in the presence of a copper catalyst.
Statements (50)
| Predicate | Object |
|---|---|
| instanceOf |
industrial chemical process
ⓘ
organosilicon synthesis method ⓘ |
| alsoKnownAs |
direct process
ⓘ
direct synthesis of methylchlorosilanes ⓘ |
| byproduct |
ethyldichlorosilane (from ethyl chloride impurities)
ⓘ
higher methylated silanes ⓘ |
| catalystPromoter |
antimony
ⓘ
arsenic ⓘ phosphorus ⓘ tin ⓘ zinc ⓘ |
| catalystSupport | silicon surface ⓘ |
| developedBy | Eugene G. Rochow NERFINISHED ⓘ |
| developedIn | 1940s ⓘ |
| downstreamProcess | hydrolysis of methylchlorosilanes ⓘ |
| downstreamProduct | polydimethylsiloxane ⓘ |
| downstreamProduct |
silicone elastomers
ⓘ
silicone oils ⓘ silicone resins ⓘ |
| feedstockForm |
metallurgical grade silicon
ⓘ
silicon powder ⓘ |
| field |
industrial chemistry
ⓘ
organosilicon chemistry ⓘ silicone production ⓘ |
| importance | primary industrial route to methylchlorosilanes ⓘ |
| industrialScale | large scale ⓘ |
| mainProduct | dimethyldichlorosilane ⓘ |
| namedAfter | Eugene G. Rochow NERFINISHED ⓘ |
| operatesPhase | gas–solid ⓘ |
| optimizationTarget | maximizing dimethyldichlorosilane yield ⓘ |
| produces |
dimethyldichlorosilane
ⓘ
methylchlorosilanes ⓘ methyldichlorosilane ⓘ silicone precursors ⓘ trimethylchlorosilane ⓘ |
| reactionEnvironment |
fixed-bed reactor
ⓘ
fluidized bed reactor ⓘ |
| reactionType |
direct synthesis
ⓘ
heterogeneous gas–solid reaction ⓘ |
| safetyConcern |
corrosive hydrogen chloride formation on hydrolysis
ⓘ
handling of methyl chloride ⓘ |
| selectivityConcern | distribution of methylchlorosilane isomers ⓘ |
| typicalPressure | near atmospheric pressure ⓘ |
| typicalTemperature | 250–350 °C ⓘ |
| usedFor |
production of silicone polymers
ⓘ
production of silicones ⓘ |
| usesCatalyst |
copper
ⓘ
copper-based alloy ⓘ |
| usesReactant |
methyl chloride
ⓘ
silicon ⓘ |
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.