Control of carbon balance in a silicon smelting furnace
Abstract
The present invention is a process for the carbothermic reduction of silicon dioxide to form elemental silicon. Carbon balance of the process is assessed by measuring the amount of carbon monoxide evolved in offgas exiting the furnace. A ratio of the amount of carbon monoxide evolved and the amount of silicon dioxide added to the furnace is determined. Based on this ratio, the carbon balance of the furnace can be determined and carbon feed can be adjusted to maintain the furnace in carbon balance.
- Inventors:
- Issue Date:
- OSTI Identifier:
- 7046870
- Patent Number(s):
- 5174982
- Application Number:
- PPN: US 7-626151
- Assignee:
- Dow Corning Corp., Midland, MI (United States)
- DOE Contract Number:
- AC04-87ID12624
- Resource Type:
- Patent
- Resource Relation:
- Patent File Date: 12 Dec 1990
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION; SILICON; PRODUCTION; SILICON OXIDES; REDUCTION; SMELTERS; PROCESS CONTROL; ON-LINE MEASUREMENT SYSTEMS; CHALCOGENIDES; CHEMICAL REACTIONS; CONTROL; ELEMENTS; ON-LINE SYSTEMS; OXIDES; OXYGEN COMPOUNDS; SEMIMETALS; SILICON COMPOUNDS; 320303* - Energy Conservation, Consumption, & Utilization- Industrial & Agricultural Processes- Equipment & Processes
Citation Formats
Dosaj, V D, Haines, C M, May, J B, and Oleson, J D. Control of carbon balance in a silicon smelting furnace. United States: N. p., 1992.
Web.
Dosaj, V D, Haines, C M, May, J B, & Oleson, J D. Control of carbon balance in a silicon smelting furnace. United States.
Dosaj, V D, Haines, C M, May, J B, and Oleson, J D. Tue .
"Control of carbon balance in a silicon smelting furnace". United States.
@article{osti_7046870,
title = {Control of carbon balance in a silicon smelting furnace},
author = {Dosaj, V D and Haines, C M and May, J B and Oleson, J D},
abstractNote = {The present invention is a process for the carbothermic reduction of silicon dioxide to form elemental silicon. Carbon balance of the process is assessed by measuring the amount of carbon monoxide evolved in offgas exiting the furnace. A ratio of the amount of carbon monoxide evolved and the amount of silicon dioxide added to the furnace is determined. Based on this ratio, the carbon balance of the furnace can be determined and carbon feed can be adjusted to maintain the furnace in carbon balance.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1992},
month = {12}
}
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