SO2 emissions during roasting and smelting of highly roasted nickel concentrates
SO2 emissions during roasting and smelting of highly roasted nickel concentrates
批准号:
370957-2008
负责人:
Utigard, Torstein
金额:
$2.19万
依托单位:
依托单位国家:
加拿大
项目类别:
Collaborative Research and Development Grants
财政年份:
2008
资助国家:
加拿大
项目状态:
已结题
起止时间:
2008-01-01 至 2009-12-31
中文摘要
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英文摘要
To decrease SO2 emissions from Vale-Incos smelter in Thompson and from Xstratas nickel smelter in Falconbridge, one option is to carry out a very high degree of oxidation in the fluid bed roasters, effectively removing most of the sulphur in the concentrate. The SO2 emitted from the roasters can readily be converted into sulphuric acid and not be let into the atmosphere. This will significantly lower the SO2 emissions from the subsequent furnace smelting and converting steps, from which it is much more difficult and costly to collect and convert the SO2 into acid.
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