METHOD OF PRODUCING REDUCING AGENT FOR MANUFACTURING INDUSTRIAL SILICON

The invention relates to the field of metallurgy, particularly to techniques for producing reducing agents for manufacturing high-quality industrial silicon. A method of processing a carbon-containing feedstock to produce a reducing agent for manufacturing industrial silicon, includes heat treating...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	PROSHKIN, Aleksandr Vladimirovich, ZHUCHKOV, Sergej Stanislavovich
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE ORUNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL CHEMISTRY DESTRUCTIVE DISTILLATION OF CARBONAGEOUS MATERIALS FORPRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS FIRELIGHTERS FUELS FUELS NOT OTHERWISE PROVIDED FOR LIQUEFIED PETROLEUM GAS LUBRICANTS MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLIDMATERIALS OR FLUIDS MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROMSOLID MATERIALS OR FLUIDS METALLURGY NATURAL GAS PEAT PERFORMING OPERATIONS PETROLEUM, GAS OR COKE INDUSTRIES SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATICTABLES OR JIGS SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BYSUBCLASSES C10G, C10K TECHNICAL GASES CONTAINING CARBON MONOXIDE TRANSPORTING
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Beschreibung
Zusammenfassung:	The invention relates to the field of metallurgy, particularly to techniques for producing reducing agents for manufacturing high-quality industrial silicon. A method of processing a carbon-containing feedstock to produce a reducing agent for manufacturing industrial silicon, includes heat treating a carbon-containing feedstock in a fluidized bed at a temperature of 700-850°C by blasting at high speeds with a mixture of air and water vapor to provide for the transition of iron-containing compounds in the carbon-containing feedstock to a magnetic form; cooling the resulting reducing agent; and then magnetically separating same over the course of 100-120 hours, immediately after the cooling stage, at a magnetic field induction magnitude of at least 1.1 T. The technical result consists in lowering the iron content of the reducing agent for manufacturing high-quality industrial silicon.