Silicon Carbide
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Silicon Carbide by Geordie Osler, CEO of Sublime Technologies
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Silicon Carbide
- 5. SiC Furnace Recovery
- 6. Inside a SiC Furnace
- 13. Cost Benefit Analysis SiC vs FeSi FeSi + C cost analysis Assumptions Required % Carbon 3.3% FeSi 75% Silicon Required Silicon 2.5% 25% Fe Steel Scrap cost/kg R 3.50 Ferro silicon cost/kg R 13.50 Carbon cost/kg R 4.50 Steel scrap Silicon 0.3% Steel scrap Carbon 0.4% Based on melt of kg 1 000 Component Yield kg cost/kg Total cost Steel scrap 95% 1 053 R 3.50 R 3 684 Ferro Silicon 90% 33 R 13.50 R 440 Carbon 100% 29 R 4.50 R 131 Add (FeSi) Fe benefit 100% 8 R 3.50 R -29 R 4 226
- 14. Cost Benefit Analysis SiC vs FeSi SiC + C cost analysis SiC = (70% Si, 30% C) Assumptions SiC 85% Required % Carbon 3.3% Silicon 60% Required Silicon 2.5% Carbon 26% Steel Scrap cost/kg R 3.50 Free C 5% SiC cost/kg R 10.00 Carbon cost/kg R 4.50 Steel scrap Silicon 0.3% Steel scrap Carbon 0.4% Based on melt of kg 1 000 Component Yield kg cost/kg Total cost Steel scrap 95% 1 053 R 3.50 R 3 684 Silicon Carbide 90% 41 R 10.00 R 411 Carbon 100% 29 R 4.50 R 131 Add Free C benefit 100% 13 R 4.50 R -56 R 4 169
- 15. Presenter Geordie Osler CEO: Sublime Technologies BSc (Eng) Mech (Hon) : UCT B.Comm : UNISA Columbus Stainless Steel 1995 – 1997 Pyromet 1997- 2006 Sublime 2001 - present