METALLURGICAL SILICON CONTAINING PHOSPHORUS FOR THE PREPARATION OF ORGANOHALOGENOSILANES

METALLURGICAL SILICON CONTAINING PHOSPHORUS FOR THE PREPARATION OF ORGANOHALOGENOSILANES

PCT No. PCT/FR94/00799 Sec. 371 Date Dec. 15, 1995 Sec. 102(e) Date Dec. 15, 1995 PCT Filed Jun. 30, 1994 PCT Pub. No. WO95/01303 PCT Pub. Date Jan. 12, 1995A metallurgical silicon is disclosed which contains substantially from 30 to 180 ppm of phosphorus comprised of a crystalline phase of primary...

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Bibliographische Detailangaben
Hauptverfasser: WAGNER, GEBHARD, SCHULZE, MANFRED, DEGEN, BRUNO, LICHT, ELKE, MARGARIA, THOMAS
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAININGELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN,SULFUR, SELENIUM OR TELLURIUM
CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY
CHEMISTRY
COMPOUNDS THEREOF
INORGANIC CHEMISTRY
METALLURGY
NON-METALLIC ELEMENTS
ORGANIC CHEMISTRY
PERFORMING OPERATIONS
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
THEIR RELEVANT APPARATUS
TRANSPORTING
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Zusammenfassung:PCT No. PCT/FR94/00799 Sec. 371 Date Dec. 15, 1995 Sec. 102(e) Date Dec. 15, 1995 PCT Filed Jun. 30, 1994 PCT Pub. No. WO95/01303 PCT Pub. Date Jan. 12, 1995A metallurgical silicon is disclosed which contains substantially from 30 to 180 ppm of phosphorus comprised of a crystalline phase of primary silicon having a dissolved phosphorus content between 30 and 150 parts per million and intermetal phases whose global ratio is between 0.5 and 2%, wherein among the intermediary phases, the phase Si2Al2Ca does not exceed 0.3% of the total of the metallurgical silicon mass. The metallurgical silcon is used for the synthesis of alkyl or aryl halogenosilanes useful for the preparation of silicones.