Investigation of the hydrogenation of SiCl/sub 4/. Final report, March 31, 1979-April 1, 1981

Technical Report · Wed Apr 15 04:00:00 EST 1981

DOI:https://doi.org/10.2172/6317606· OSTI ID:6317606

Seyferth, D.

A two-year research and development program was initiated in April of 1979 to study the hydrochlorination of silicon tetrachloride and metallurgical grade (m.g.) silicon metal to trichlorosilane, 3 SiCl/sub 4/ + 2H/sub 2/ + Si in equilibrium 4 SiHCl/sub 3/. A laboratory scale pressure reactor was constructed to study this reaction at pressures up to 500 psig. Reaction kinetic measurements were carried out as a function of reactor pressure, reaction temperature and H/sub 2//SiCl/sub 4/ feed ratio. Based on the reaction kinetic data, the hydrochlorination of SiCl/sub 4/ and m.g. silicon metal is found to be an efficient process to produce SiHCl/sub 3/ in good conversions and in high yields. Copper is an effective catalyst. Results of a corrosion study show that conventional nickel-chromium alloys are suitable material of construction for the hydrochlorination reactor. The hydrochlorination reaction is relatively insensitive to external process parameters such as silicon particle size distribution and the impurities in the m.g. silicon metal.

• Research Organization: Massachusetts Inst. of Tech., Cambridge (USA)
• Sponsoring Organization: USDOE
• DOE Contract Number: NAS-7-100-955382
• OSTI ID: 6317606
• Report Number(s): DOE/JPL/955382-79/8; ON: DE81025543
• Country of Publication: United States
• Language: English

Related Subjects

14 SOLAR ENERGY
140501* -- Solar Energy Conversion-- Photovoltaic Conversion
ALLOYS
CATALYSTS
CHEMICAL REACTIONS
CHEMICAL REACTORS
CHLORIDES
CHLORINE COMPOUNDS
CHROMIUM ALLOYS
CHROMIUM STEELS
CHROMIUM-NICKEL STEELS
COPPER
CORROSION RESISTANCE
CORROSION RESISTANT ALLOYS
DATA
ELEMENTS
EXPERIMENTAL DATA
HALIDES
HALOGEN COMPOUNDS
HEAT RESISTANT MATERIALS
HEAT RESISTING ALLOYS
HYDRIDES
HYDROGEN COMPOUNDS
HYDROGENATION
IMPURITIES
INCOLOY 800
INCOLOY ALLOYS
INFORMATION
IRON ALLOYS
IRON BASE ALLOYS
KINETICS
MATERIALS
METALS
NICKEL ALLOYS
NUMERICAL DATA
PARTICLE SIZE
REACTION KINETICS
SEMIMETALS
SILANES
SILICON
SILICON CHLORIDES
SILICON COMPOUNDS
SIZE
STAINLESS STEEL-304
STAINLESS STEELS
STEELS
TRANSITION ELEMENTS