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《直接还原处理钒钛矿资源的几种典型工艺评述.pdf》由会员上传分享,免费在线阅读,更多相关内容在行业资料-天天文库。
1、第23卷第4期矿冶V01.23.No.42014年8月MINING&METALLURGYAugust2014文章编号:1005-7854(2014)04—0079—04直接还原处理钒钛矿资源的几种典型工艺评述秦洁刘功国李占军齐建玲(攀钢集团研究院有限公司,钒钛资源综合利用国家重点实验室,四川攀枝花617000)摘要:对新西兰钢铁公司、南非海威尔德钢钒公司、中国攀钢资源综合利用中试线分别采用的钒钛矿处理工艺进行了详细阐述。新西兰钢铁公司和海威尔德采用回转窑直接还原一电炉熔炼一含钒铁水提钒工艺,只能提取钒钛矿中的铁和钒,钛进入熔分渣,TiO品位低,提取困难。攀
2、钢采用转底炉直接还原一熔分电炉深还原一提钒工艺,熔分过程不调渣,含钛炉渣品位较高,稳定在45%以上,可利用传统的硫酸法提钛,实现了钒钛磁铁矿铁、钒、钛的回收利用。介绍直接还原处理钒钛矿的工艺方法,对钒钛矿资源以及类似的多金属共生矿的开发利用有借鉴作用。关键词:钒钛矿;直接还原;熔分;提钒;电弧炉中图分类号:TF059文献标志码:Adoi:10.3969/j.issn.1005-7854.2014.04.019C0MPARISON0FSEVERALTYPICALPR0CESSESFORDEALINGWITHVANADIUMTITANIUMMAGNETITER
3、ES0URCESQINJieLIUGong—-guoLIZhan-junQIJian-ling(PangangGroupResearchInstituteCo.,Ltd.,StateKeyLaboratoryofVanadiumandTitaniumResourcesComprehensiveUtilization,Panzhihua617000,Sichuan,China)ABSTRACT:Processesofdealingwithvanadiumtitaniummagnetiteironoreinthreeenterprises,namelyNewZ
4、ealandStee1.HighveldSteel&VanadiumCorpLtdinSouthAfricaandPanzhihuaIronandSteelCorporationinChinaarereviewed.TheNewZealandSteelandHighveldcorporationadoptrotarykilndirectreduction-EAFsmelting-extractingvanadiumfromvanadiumbearinghotmetalprocess,however,thisprocessjustrecovertheele—
5、mentsofFeandVintheironorebuttheelementTigoestotheslagofEAFwhichisdificulttobeextractedbe—causeofthelowgradeoftheTiO2.PanzhihuaIronandSteelCorporationappliestherotaryhearthfurnace(RHF)directreduction-EAFdeepreduction-vanadiumextractionprocessandthereisnoothermaterialsexceptDRIandre
6、ductantenteringtheEAF,SOtheTiO2contentintheslagreachesabove45%whichishigherthanthatoftheoth—ercorporationsandtheTielementcouldbeextractedbythetraditionalsulfuricacidmethod.TheprocessprovidedbyPanzhihuasteelcanrecoverFe,VandTiinthevanadiumtitaniummagnetiteandopensupanewwayfortheore
7、utilization.Thisarticleintroducesthedirectreductionprocessestorecovervaluableelementsfromthevanadiumtitaniumore,providingreferencesfortheutilizationofthevanadiumtitaniumoresaswellasothersimilarcompositeoreresoUrees.KEYWORDS:vanadiumtitaniummagnetite;directreduction;smelting;vanadi
8、umextraction;EAF钒钛磁铁矿是一种铁、钒、钛等多种有
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