FIELD: metallurgy.
SUBSTANCE: invention relates to processing of siliceous rocks in production of semiconductor materials, which can be used for making solar collectors and elements of electronic equipment. Method involves breaking down and processing siliceous rock to produce silica powder, irradiation, cleaning and reduction to silicon, wherein after irradiation powdered silica is subjected to tempering at 950-1,000 °C in a protective or reducing medium.
EFFECT: invention increases depth of decomposition of ore components by affecting kinetics of decomposition of raw material at early stage of production of silicon, reduces concentration of impurities and power consumption when grinding.
1 cl, 4 tbl, 4 ex
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF PRODUCING SILICON | 2010 |
|
RU2441838C1 |
| METHOD OF PREPARING COMPONENTS OF SOLID FUEL AND EXPLOSIVES | 1999 |
|
RU2142445C1 |
| METHOD OF PROCESSING OF TUNGSTEN-CONTAINING ORES | 1996 |
|
RU2107106C1 |
| METHOD OF OBTAINING MINERAL BINDING MATERIALS | 1997 |
|
RU2136620C1 |
| METHOD OF MANUFACTURING REFRACTORY METAL POWDERS | 1996 |
|
RU2088378C1 |
| METHOD FOR PROCESSING OIL AND OIL PRODUCTS | 1995 |
|
RU2100404C1 |
| METHOD AND APPARATUS FOR INITIATING CHEMICAL REACTIONS IN PETROLEUM AND PETROLEUM PRODUCT PROCESSING | 1997 |
|
RU2142496C1 |
| METHOD TO INCREASE THE OUTPUT OF THE BIOGAS IN THE PROCESS OF THE ORGANIC SUBSTANCES FERMENTATION | 2005 |
|
RU2302378C2 |
| METHOD FOR MANUFACTURING OXIDE CATHODE | 1995 |
|
RU2089002C1 |
| METHOD OF PRODUCING BILLETS FROM SINTERED HARD ALLOYS | 0 |
|
SU1404175A1 |
