Recovery of alumina and ferric oxide from Bayer red mud rich in iron by reduction sintering
A great amount of red mud generated from alumina production by Bayer process not only threatens the environment but also causes waste of secondary resources. High-iron-content red mud from Bayer process was employed to recover alumina and ferric oxide by the process of reduction-sintering, leaching...
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| Veröffentlicht in: | Transactions of Nonferrous Metals Society of China 2009-10, Vol.19 (5), p.1342-1347 |
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| container_title | Transactions of Nonferrous Metals Society of China |
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| creator | LI, Xiao-bin XIAO, Wei LIU, Wei LIU, Gui-hua PENG, Zhi-hong ZHOU, Qiu-sheng QI, Tian-gui |
| description | A great amount of red mud generated from alumina production by Bayer process not only threatens the environment but also causes waste of secondary resources. High-iron-content red mud from Bayer process was employed to recover alumina and ferric oxide by the process of reduction-sintering, leaching and then magnetic beneficiation. Results of thermodynamic analyses show that ferric oxide should be reduced to Fe if reduction of ferric oxide and formation of sodium aluminate and calcium silicate happen simultaneously. Experimental results indicate that alumina recovery of Bayer red mud can reach 89.71%, and Fe recovery rate and the grade of magnetite concentrate are 60.67% and 61.78%, respectively, under the optimized sintering conditions. |
| doi_str_mv | 10.1016/S1003-6326(08)60447-1 |
| format | Article |
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High-iron-content red mud from Bayer process was employed to recover alumina and ferric oxide by the process of reduction-sintering, leaching and then magnetic beneficiation. Results of thermodynamic analyses show that ferric oxide should be reduced to Fe if reduction of ferric oxide and formation of sodium aluminate and calcium silicate happen simultaneously. Experimental results indicate that alumina recovery of Bayer red mud can reach 89.71%, and Fe recovery rate and the grade of magnetite concentrate are 60.67% and 61.78%, respectively, under the optimized sintering conditions.</description><identifier>ISSN: 1003-6326</identifier><identifier>DOI: 10.1016/S1003-6326(08)60447-1</identifier><language>eng</language><publisher>Elsevier Ltd</publisher><subject>high iron content ; magnetic beneficiation ; recovery ; red mud ; reduction ; sintering</subject><ispartof>Transactions of Nonferrous Metals Society of China, 2009-10, Vol.19 (5), p.1342-1347</ispartof><rights>2009 The Nonferrous Metals Society of China</rights><rights>Copyright © Wanfang Data Co. Ltd. All Rights Reserved.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c483t-2f8b87220e40c2fcf9b2b4fb920ff61a92400931ab221b207bd225e520f2c4983</citedby><cites>FETCH-LOGICAL-c483t-2f8b87220e40c2fcf9b2b4fb920ff61a92400931ab221b207bd225e520f2c4983</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Uhttp://www.wanfangdata.com.cn/images/PeriodicalImages/zgysjsxb-e/zgysjsxb-e.jpg</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/S1003-6326(08)60447-1$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,780,784,3550,27924,27925,45995</link.rule.ids></links><search><creatorcontrib>LI, Xiao-bin</creatorcontrib><creatorcontrib>XIAO, Wei</creatorcontrib><creatorcontrib>LIU, Wei</creatorcontrib><creatorcontrib>LIU, Gui-hua</creatorcontrib><creatorcontrib>PENG, Zhi-hong</creatorcontrib><creatorcontrib>ZHOU, Qiu-sheng</creatorcontrib><creatorcontrib>QI, Tian-gui</creatorcontrib><title>Recovery of alumina and ferric oxide from Bayer red mud rich in iron by reduction sintering</title><title>Transactions of Nonferrous Metals Society of China</title><description>A great amount of red mud generated from alumina production by Bayer process not only threatens the environment but also causes waste of secondary resources. High-iron-content red mud from Bayer process was employed to recover alumina and ferric oxide by the process of reduction-sintering, leaching and then magnetic beneficiation. Results of thermodynamic analyses show that ferric oxide should be reduced to Fe if reduction of ferric oxide and formation of sodium aluminate and calcium silicate happen simultaneously. Experimental results indicate that alumina recovery of Bayer red mud can reach 89.71%, and Fe recovery rate and the grade of magnetite concentrate are 60.67% and 61.78%, respectively, under the optimized sintering conditions.</description><subject>high iron content</subject><subject>magnetic beneficiation</subject><subject>recovery</subject><subject>red mud</subject><subject>reduction</subject><subject>sintering</subject><issn>1003-6326</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2009</creationdate><recordtype>article</recordtype><recordid>eNqFUEtLxDAQ7kHB508QchJFqpP0se1JdPEFC4KPk4eQpJM1yzZZk1atv96sFa-ehpnvxXxJckDhlAItzx4pQJaWGSuPoDouIc8nKd1Itv_OW8lOCAuIQFnS7eTlAZV7Rz8Qp4lY9q2xggjbEI3eG0Xcp2mQaO9acikG9MRjQ9q-IRF8JcYS450lcljfe9WZuARjO_TGzveSTS2WAfd_527yfH31NL1NZ_c3d9OLWaryKutSpitZTRgDzEExrXQtmcy1rBloXVJRsxygzqiQjFHJYCIbxgosIsxUXlfZbnIy-n4Iq4Wd84XrvY2J_Gs-hEX4lBxZtIAC8jKyD0f2yru3HkPHWxMULpfCousDzwpgkxgZicVIVN6F4FHzlTet8AOnwNdl85-y-bpVDhX_KZvTqDsfdRh_fjfoeVAGrcLGeFQdb5z5x-EbVuyIGg</recordid><startdate>20091001</startdate><enddate>20091001</enddate><creator>LI, Xiao-bin</creator><creator>XIAO, Wei</creator><creator>LIU, Wei</creator><creator>LIU, Gui-hua</creator><creator>PENG, Zhi-hong</creator><creator>ZHOU, Qiu-sheng</creator><creator>QI, Tian-gui</creator><general>Elsevier Ltd</general><general>School of Metallurgical Science and Engineering, Central South University, Changsha 410083, China</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7QF</scope><scope>8BQ</scope><scope>8FD</scope><scope>JG9</scope><scope>2B.</scope><scope>4A8</scope><scope>92I</scope><scope>93N</scope><scope>PSX</scope><scope>TCJ</scope></search><sort><creationdate>20091001</creationdate><title>Recovery of alumina and ferric oxide from Bayer red mud rich in iron by reduction sintering</title><author>LI, Xiao-bin ; XIAO, Wei ; LIU, Wei ; LIU, Gui-hua ; PENG, Zhi-hong ; ZHOU, Qiu-sheng ; QI, Tian-gui</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c483t-2f8b87220e40c2fcf9b2b4fb920ff61a92400931ab221b207bd225e520f2c4983</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2009</creationdate><topic>high iron content</topic><topic>magnetic beneficiation</topic><topic>recovery</topic><topic>red mud</topic><topic>reduction</topic><topic>sintering</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>LI, Xiao-bin</creatorcontrib><creatorcontrib>XIAO, Wei</creatorcontrib><creatorcontrib>LIU, Wei</creatorcontrib><creatorcontrib>LIU, Gui-hua</creatorcontrib><creatorcontrib>PENG, Zhi-hong</creatorcontrib><creatorcontrib>ZHOU, Qiu-sheng</creatorcontrib><creatorcontrib>QI, Tian-gui</creatorcontrib><collection>CrossRef</collection><collection>Aluminium Industry Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><collection>Wanfang Data Journals - Hong Kong</collection><collection>WANFANG Data Centre</collection><collection>Wanfang Data Journals</collection><collection>万方数据期刊 - 香港版</collection><collection>China Online Journals (COJ)</collection><collection>China Online Journals (COJ)</collection><jtitle>Transactions of Nonferrous Metals Society of China</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>LI, Xiao-bin</au><au>XIAO, Wei</au><au>LIU, Wei</au><au>LIU, Gui-hua</au><au>PENG, Zhi-hong</au><au>ZHOU, Qiu-sheng</au><au>QI, Tian-gui</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Recovery of alumina and ferric oxide from Bayer red mud rich in iron by reduction sintering</atitle><jtitle>Transactions of Nonferrous Metals Society of China</jtitle><date>2009-10-01</date><risdate>2009</risdate><volume>19</volume><issue>5</issue><spage>1342</spage><epage>1347</epage><pages>1342-1347</pages><issn>1003-6326</issn><abstract>A great amount of red mud generated from alumina production by Bayer process not only threatens the environment but also causes waste of secondary resources. High-iron-content red mud from Bayer process was employed to recover alumina and ferric oxide by the process of reduction-sintering, leaching and then magnetic beneficiation. Results of thermodynamic analyses show that ferric oxide should be reduced to Fe if reduction of ferric oxide and formation of sodium aluminate and calcium silicate happen simultaneously. Experimental results indicate that alumina recovery of Bayer red mud can reach 89.71%, and Fe recovery rate and the grade of magnetite concentrate are 60.67% and 61.78%, respectively, under the optimized sintering conditions.</abstract><pub>Elsevier Ltd</pub><doi>10.1016/S1003-6326(08)60447-1</doi><tpages>6</tpages></addata></record> |
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| language | eng |
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| source | Access via ScienceDirect (Elsevier); Alma/SFX Local Collection |
| subjects | high iron content magnetic beneficiation recovery red mud reduction sintering |
| title | Recovery of alumina and ferric oxide from Bayer red mud rich in iron by reduction sintering |
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