Title:
PROCESS AND EQUIPMENT FOR THE MELTING OF SILICON FINES
Document Type and Number:
WIPO Patent Application WO/2015/089521
Kind Code:
A3
Abstract:
The invention relates to a process- and a complementing furnace for the melting of silicon based fines. The process comprises of the steps of feeding silicon based lines into a direct current electric arc furnace, melting the fines with a direct current arc Into a liquid bath, and tapping the resultant liquid silicon product from the furnace, once the required melting was accomplished- The melting is conducted in a nitrogen atmosphere, with the nitrogen gas being introduced Into the molten silicon by means of a lance. The fines are fed pneumatically with the nitrogen gas, as transport medium, via the lance Into the molten silicon. The fines are of a minus 15 mm size fraction.
Inventors:
CHALOUETTE JEAN-CLAUDE (ZA)
FAUJOUR ERIC (ZA)
FAUJOUR ERIC (ZA)
Application Number:
PCT/ZA2014/000067
Publication Date:
September 17, 2015
Filing Date:
December 04, 2014
Export Citation:
Assignee:
SILICON SMELTERS PTY LTD (ZA)
International Classes:
C01B33/037; B09B3/00; C21C7/06
Domestic Patent References:
| WO2012109459A1 | 2012-08-16 |
Foreign References:
| EP2546195A1 | 2013-01-16 | |||
| JP2012171858A | 2012-09-10 |
Attorney, Agent or Firm:
BOUWERS INC. (Albury Office ParkCNR Jan Smuts Ave & Albury Rd,Hyde Park, 2196, Johannesburg, South Africa,PO Box, Craighall 2024, ZA)
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