Dephosphorization Treatment of High Phosphorus Oolitic Iron Ore by Hydrometallurgical Process and Leaching Kinetics
Dephosphorization process of high phosphorus oolitic iron ore by acid leaching and leaching kinetics were investigated in the paper. The high phosphorus ore samples (51%T.Fe, 0.52%P) used in this work were analysed by SEM-EDS and XRD, which showed their oolitic structure and mineral phases. Among th...
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| Veröffentlicht in: | ISIJ International 2013/12/15, Vol.53(12), pp.2056-2064 |
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| creator | Yu, Jintao Guo, Zhancheng Tang, Huiqing |
| description | Dephosphorization process of high phosphorus oolitic iron ore by acid leaching and leaching kinetics were investigated in the paper. The high phosphorus ore samples (51%T.Fe, 0.52%P) used in this work were analysed by SEM-EDS and XRD, which showed their oolitic structure and mineral phases. Among the three kinds of acids (H2SO4, HCl and HNO3), sulfuric acid was the most appropriate one for dephosphorization, and structure changes after leaching were also investigated through the SEM and EDS analysis. The effects of acidity, particle size, stirring speed and temperature were researched in detail. Through acid leaching, phosphorus could be removed effectively, and iron loss was negligible, which was also studied by thermodynamic calculation. The experimental data could be well described by the unreacted shrinking core model and rate controlling step was found to be chemical reaction between apatite and acid. The apparent activation energy was calculated as 45.02 kJ/mol. |
| doi_str_mv | 10.2355/isijinternational.53.2056 |
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The high phosphorus ore samples (51%T.Fe, 0.52%P) used in this work were analysed by SEM-EDS and XRD, which showed their oolitic structure and mineral phases. Among the three kinds of acids (H2SO4, HCl and HNO3), sulfuric acid was the most appropriate one for dephosphorization, and structure changes after leaching were also investigated through the SEM and EDS analysis. The effects of acidity, particle size, stirring speed and temperature were researched in detail. Through acid leaching, phosphorus could be removed effectively, and iron loss was negligible, which was also studied by thermodynamic calculation. The experimental data could be well described by the unreacted shrinking core model and rate controlling step was found to be chemical reaction between apatite and acid. The apparent activation energy was calculated as 45.02 kJ/mol.</description><identifier>ISSN: 0915-1559</identifier><identifier>EISSN: 1347-5460</identifier><identifier>DOI: 10.2355/isijinternational.53.2056</identifier><language>eng</language><publisher>Tokyo: The Iron and Steel Institute of Japan</publisher><subject>Applied sciences ; dephosphorization ; Exact sciences and technology ; high phosphorus iron ore ; iron loss ; kinetics ; leaching ; Metals. Metallurgy ; oolitic structure</subject><ispartof>ISIJ International, 2013/12/15, Vol.53(12), pp.2056-2064</ispartof><rights>2013 by The Iron and Steel Institute of Japan</rights><rights>2015 INIST-CNRS</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c579t-dd6d6ba2d23ce8a20fd19e0c3793c1dd703e553da7c5cc0919d023ede9fd7a3f3</citedby><cites>FETCH-LOGICAL-c579t-dd6d6ba2d23ce8a20fd19e0c3793c1dd703e553da7c5cc0919d023ede9fd7a3f3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,864,1883,27924,27925</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=28145376$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Yu, Jintao</creatorcontrib><creatorcontrib>Guo, Zhancheng</creatorcontrib><creatorcontrib>Tang, Huiqing</creatorcontrib><title>Dephosphorization Treatment of High Phosphorus Oolitic Iron Ore by Hydrometallurgical Process and Leaching Kinetics</title><title>ISIJ International</title><addtitle>ISIJ Int.</addtitle><description>Dephosphorization process of high phosphorus oolitic iron ore by acid leaching and leaching kinetics were investigated in the paper. The high phosphorus ore samples (51%T.Fe, 0.52%P) used in this work were analysed by SEM-EDS and XRD, which showed their oolitic structure and mineral phases. Among the three kinds of acids (H2SO4, HCl and HNO3), sulfuric acid was the most appropriate one for dephosphorization, and structure changes after leaching were also investigated through the SEM and EDS analysis. The effects of acidity, particle size, stirring speed and temperature were researched in detail. Through acid leaching, phosphorus could be removed effectively, and iron loss was negligible, which was also studied by thermodynamic calculation. The experimental data could be well described by the unreacted shrinking core model and rate controlling step was found to be chemical reaction between apatite and acid. The apparent activation energy was calculated as 45.02 kJ/mol.</description><subject>Applied sciences</subject><subject>dephosphorization</subject><subject>Exact sciences and technology</subject><subject>high phosphorus iron ore</subject><subject>iron loss</subject><subject>kinetics</subject><subject>leaching</subject><subject>Metals. Metallurgy</subject><subject>oolitic structure</subject><issn>0915-1559</issn><issn>1347-5460</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2013</creationdate><recordtype>article</recordtype><recordid>eNptkEtvwjAQhK2qlYoo_8E99BjqR5yQY0UfoFLBgZ6jxd4Eo-Ag2xzor28olEt7WO3lmxnNEHLP2VBIpR5tsBvrInoH0bYOmqGSQ8FUdkV6XKZ5otKMXZMeK7hKuFLFLRmEYFeMiXSUSi57JDzjbt2G7rz9-nGhS48Qt-gibSs6sfWaLs7EPtB529hoNZ36jpx7pKsDnRyMb7cYoWn2vrYaGrrwrcYQKDhDZwh6bV1N363DThvuyE0FTcDB-ffJ5-vLcjxJZvO36fhplmiVFzExJjPZCoQRUuMIBKsML5BpmRdSc2NyJlEpaSDXSuuuY2GYkGiwqEwOspJ9Upx8tW9D8FiVO2-34A8lZ-VxwPLPgKWS5XHATvtw0u4gdIUqD07bcDEQI54qmR-5jxO3CRFqvADgu6YN_p_AxW_OhdNr8CU6-Q2LN5fk</recordid><startdate>20130101</startdate><enddate>20130101</enddate><creator>Yu, Jintao</creator><creator>Guo, Zhancheng</creator><creator>Tang, Huiqing</creator><general>The Iron and Steel Institute of Japan</general><general>Iron and Steel Institute of Japan</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope></search><sort><creationdate>20130101</creationdate><title>Dephosphorization Treatment of High Phosphorus Oolitic Iron Ore by Hydrometallurgical Process and Leaching Kinetics</title><author>Yu, Jintao ; Guo, Zhancheng ; Tang, Huiqing</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c579t-dd6d6ba2d23ce8a20fd19e0c3793c1dd703e553da7c5cc0919d023ede9fd7a3f3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2013</creationdate><topic>Applied sciences</topic><topic>dephosphorization</topic><topic>Exact sciences and technology</topic><topic>high phosphorus iron ore</topic><topic>iron loss</topic><topic>kinetics</topic><topic>leaching</topic><topic>Metals. Metallurgy</topic><topic>oolitic structure</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Yu, Jintao</creatorcontrib><creatorcontrib>Guo, Zhancheng</creatorcontrib><creatorcontrib>Tang, Huiqing</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><jtitle>ISIJ International</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Yu, Jintao</au><au>Guo, Zhancheng</au><au>Tang, Huiqing</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Dephosphorization Treatment of High Phosphorus Oolitic Iron Ore by Hydrometallurgical Process and Leaching Kinetics</atitle><jtitle>ISIJ International</jtitle><addtitle>ISIJ Int.</addtitle><date>2013-01-01</date><risdate>2013</risdate><volume>53</volume><issue>12</issue><spage>2056</spage><epage>2064</epage><pages>2056-2064</pages><issn>0915-1559</issn><eissn>1347-5460</eissn><abstract>Dephosphorization process of high phosphorus oolitic iron ore by acid leaching and leaching kinetics were investigated in the paper. The high phosphorus ore samples (51%T.Fe, 0.52%P) used in this work were analysed by SEM-EDS and XRD, which showed their oolitic structure and mineral phases. Among the three kinds of acids (H2SO4, HCl and HNO3), sulfuric acid was the most appropriate one for dephosphorization, and structure changes after leaching were also investigated through the SEM and EDS analysis. The effects of acidity, particle size, stirring speed and temperature were researched in detail. Through acid leaching, phosphorus could be removed effectively, and iron loss was negligible, which was also studied by thermodynamic calculation. The experimental data could be well described by the unreacted shrinking core model and rate controlling step was found to be chemical reaction between apatite and acid. The apparent activation energy was calculated as 45.02 kJ/mol.</abstract><cop>Tokyo</cop><pub>The Iron and Steel Institute of Japan</pub><doi>10.2355/isijinternational.53.2056</doi><tpages>9</tpages><oa>free_for_read</oa></addata></record> |
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| subjects | Applied sciences dephosphorization Exact sciences and technology high phosphorus iron ore iron loss kinetics leaching Metals. Metallurgy oolitic structure |
| title | Dephosphorization Treatment of High Phosphorus Oolitic Iron Ore by Hydrometallurgical Process and Leaching Kinetics |
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