Effect of ferrite content on dissolution kinetics of gibbsitic bauxite under atmospheric pressure in NaOH solution
The dissolution property of high-ferrite gibbsitic bauxite and the effect of ferrite content on the dissolution kinetics of gibbsitic bauxites in sodium hydroxide solution under atmospheric pressure from 50 to 90 °C were systematically investigated.The dissolution property of high-ferrite gibbsitic...
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| Veröffentlicht in: | Journal of Central South University 2017-03, Vol.24 (3), p.489-495 |
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| container_title | Journal of Central South University |
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| creator | 杨会宾 潘晓林 于海燕 涂赣峰 孙俊民 |
| description | The dissolution property of high-ferrite gibbsitic bauxite and the effect of ferrite content on the dissolution kinetics of gibbsitic bauxites in sodium hydroxide solution under atmospheric pressure from 50 to 90 °C were systematically investigated.The dissolution property of high-ferrite gibbsitic bauxite is increased by increasing the dissolution temperature and the Na OH concentration or decreasing the particle size of bauxite,which is easy to dissolve under atmospheric pressure.The kinetic equations of gibbsitic bauxites with different ferrite contents during the dissolution process at different temperatures for different times were established,and the corresponding activation energies were calculated.The ferrite in the gibbsitic bauxite reduces the dissolution speed and increases the activation energy of dissolution,the diffusion process of which is the rate-controlling step. |
| doi_str_mv | 10.1007/s11771-017-3451-7 |
| format | Article |
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All Rights Reserved.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c379t-cc88f80a6976c5c6ce4cc8131992f36071add04931aae37c723db36556b59bd3</citedby><cites>FETCH-LOGICAL-c379t-cc88f80a6976c5c6ce4cc8131992f36071add04931aae37c723db36556b59bd3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Uhttp://image.cqvip.com/vip1000/qk/85521A/85521A.jpg</thumbnail><linktopdf>$$Uhttps://link.springer.com/content/pdf/10.1007/s11771-017-3451-7$$EPDF$$P50$$Gspringer$$H</linktopdf><linktohtml>$$Uhttps://link.springer.com/10.1007/s11771-017-3451-7$$EHTML$$P50$$Gspringer$$H</linktohtml><link.rule.ids>314,780,784,27924,27925,41488,42557,51319</link.rule.ids></links><search><creatorcontrib>杨会宾 潘晓林 于海燕 涂赣峰 孙俊民</creatorcontrib><title>Effect of ferrite content on dissolution kinetics of gibbsitic bauxite under atmospheric pressure in NaOH solution</title><title>Journal of Central South University</title><addtitle>J. Cent. South Univ</addtitle><addtitle>Journal of Central South University of Technology</addtitle><description>The dissolution property of high-ferrite gibbsitic bauxite and the effect of ferrite content on the dissolution kinetics of gibbsitic bauxites in sodium hydroxide solution under atmospheric pressure from 50 to 90 °C were systematically investigated.The dissolution property of high-ferrite gibbsitic bauxite is increased by increasing the dissolution temperature and the Na OH concentration or decreasing the particle size of bauxite,which is easy to dissolve under atmospheric pressure.The kinetic equations of gibbsitic bauxites with different ferrite contents during the dissolution process at different temperatures for different times were established,and the corresponding activation energies were calculated.The ferrite in the gibbsitic bauxite reduces the dissolution speed and increases the activation energy of dissolution,the diffusion process of which is the rate-controlling step.</description><subject>Activation energy</subject><subject>Atmospheric pressure</subject><subject>Bauxite</subject><subject>Bayer process</subject><subject>Diffusion rate</subject><subject>Dissolution</subject><subject>Engineering</subject><subject>Ferrite</subject><subject>Kinetic equations</subject><subject>Kinetics</subject><subject>Metallic Materials</subject><subject>NaOH溶液</subject><subject>Pressure effects</subject><subject>Sodium hydroxide</subject><subject>常压</subject><subject>氢氧化钠溶液</subject><subject>水铝矿</subject><subject>溶解动力学</subject><subject>速率控制步骤</subject><subject>铁素体含量</subject><subject>铝土矿</subject><issn>2095-2899</issn><issn>2227-5223</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2017</creationdate><recordtype>article</recordtype><recordid>eNp9kctOwzAQRSMEElXpB7CzYIkCfjR2vERVoUgV3XRvOY6dGlontRPR8vU4SnmsWHk8c-690kySXCN4jyBkDwEhxlAKEUvJNEMpO0tGGGOWZhiT81hDnqU45_wymYRgC0gQpoRyOkr83BitWlAbYLT3ttVA1a7VLrYcKG0I9bZrbazfrdOtVaFHK1sUwcYfKGR36EWdK7UHst3VodloHyeN1yF0XgPrwKtcLcC301VyYeQ26MnpHSfrp_l6tkiXq-eX2eMyVYTxNlUqz00OJeWMqkxRpaexhQjiHBtCIUOyLOGUEySlJkwxTMqC0CyjRcaLkoyTu8H2QzojXSXe6s67GCg-XXUsD4dCaBxXBgmEONK3A934et_p0P7iKM8pYTTuLFJooJSvQ_DaiMbbnfRHgaDoTyGGU4joK_pTCBY1eNCEyLpK-z_O_4huTkGb2lX7qPtJogwjDGmekS9Fe5iL</recordid><startdate>20170301</startdate><enddate>20170301</enddate><creator>杨会宾 潘晓林 于海燕 涂赣峰 孙俊民</creator><general>Central South University</general><general>Springer Nature B.V</general><general>Datang International High Aluminum Coal R&D Center (National Energy Sources High Aluminum Coal Development and Utilization Key Laboratory), Ordos 010321, China%School of Metallurgy, Northeastern University, Shenyang 110004, China%Datang International High Aluminum Coal R&D Center (National Energy Sources High Aluminum Coal Development and Utilization Key Laboratory), Ordos 010321, China</general><general>School of Metallurgy, Northeastern University, Shenyang 110004, China</general><scope>2RA</scope><scope>92L</scope><scope>CQIGP</scope><scope>W92</scope><scope>~WA</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>2B.</scope><scope>4A8</scope><scope>92I</scope><scope>93N</scope><scope>PSX</scope><scope>TCJ</scope></search><sort><creationdate>20170301</creationdate><title>Effect of ferrite content on dissolution kinetics of gibbsitic bauxite under atmospheric pressure in NaOH solution</title><author>杨会宾 潘晓林 于海燕 涂赣峰 孙俊民</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c379t-cc88f80a6976c5c6ce4cc8131992f36071add04931aae37c723db36556b59bd3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2017</creationdate><topic>Activation energy</topic><topic>Atmospheric pressure</topic><topic>Bauxite</topic><topic>Bayer process</topic><topic>Diffusion rate</topic><topic>Dissolution</topic><topic>Engineering</topic><topic>Ferrite</topic><topic>Kinetic equations</topic><topic>Kinetics</topic><topic>Metallic Materials</topic><topic>NaOH溶液</topic><topic>Pressure effects</topic><topic>Sodium hydroxide</topic><topic>常压</topic><topic>氢氧化钠溶液</topic><topic>水铝矿</topic><topic>溶解动力学</topic><topic>速率控制步骤</topic><topic>铁素体含量</topic><topic>铝土矿</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>杨会宾 潘晓林 于海燕 涂赣峰 孙俊民</creatorcontrib><collection>中文科技期刊数据库</collection><collection>中文科技期刊数据库-CALIS站点</collection><collection>中文科技期刊数据库-7.0平台</collection><collection>中文科技期刊数据库-工程技术</collection><collection>中文科技期刊数据库- 镜像站点</collection><collection>CrossRef</collection><collection>Wanfang Data Journals - 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Cent. South Univ</stitle><addtitle>Journal of Central South University of Technology</addtitle><date>2017-03-01</date><risdate>2017</risdate><volume>24</volume><issue>3</issue><spage>489</spage><epage>495</epage><pages>489-495</pages><issn>2095-2899</issn><eissn>2227-5223</eissn><abstract>The dissolution property of high-ferrite gibbsitic bauxite and the effect of ferrite content on the dissolution kinetics of gibbsitic bauxites in sodium hydroxide solution under atmospheric pressure from 50 to 90 °C were systematically investigated.The dissolution property of high-ferrite gibbsitic bauxite is increased by increasing the dissolution temperature and the Na OH concentration or decreasing the particle size of bauxite,which is easy to dissolve under atmospheric pressure.The kinetic equations of gibbsitic bauxites with different ferrite contents during the dissolution process at different temperatures for different times were established,and the corresponding activation energies were calculated.The ferrite in the gibbsitic bauxite reduces the dissolution speed and increases the activation energy of dissolution,the diffusion process of which is the rate-controlling step.</abstract><cop>Changsha</cop><pub>Central South University</pub><doi>10.1007/s11771-017-3451-7</doi><tpages>7</tpages></addata></record> |
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| ispartof | Journal of Central South University, 2017-03, Vol.24 (3), p.489-495 |
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| subjects | Activation energy Atmospheric pressure Bauxite Bayer process Diffusion rate Dissolution Engineering Ferrite Kinetic equations Kinetics Metallic Materials NaOH溶液 Pressure effects Sodium hydroxide 常压 氢氧化钠溶液 水铝矿 溶解动力学 速率控制步骤 铁素体含量 铝土矿 |
| title | Effect of ferrite content on dissolution kinetics of gibbsitic bauxite under atmospheric pressure in NaOH solution |
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