Desilication kinetics of calcined boron mud in molten sodium hydroxide media
Desilication kinetics of calcined boron mud （CBM） occurring in molten sodium hydroxide media was investigated. The effects of factors such as reaction temperature and NaOH-to-CBM mass ratio on silicon extraction efficiency were studied. The results show that silicon extraction efficiency increases w...
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| Veröffentlicht in: | Journal of Central South University 2016-09, Vol.23 (9), p.2191-2198 |
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| container_title | Journal of Central South University |
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| creator | 宁志强 宋秋实 翟玉春 谢宏伟 于凯 |
| description | Desilication kinetics of calcined boron mud （CBM） occurring in molten sodium hydroxide media was investigated. The effects of factors such as reaction temperature and NaOH-to-CBM mass ratio on silicon extraction efficiency were studied. The results show that silicon extraction efficiency increases with increasing the reaction time and NaOH-to-CBM mass ratio. There are two stages for the desilication process of the calcined boron mud. The overall desilication process follows the shrinking-core model, and the first and second stages of the process were determined to obey the shrinking-core model for surface chemical reaction and the diffusion through the product layer, respectively. The activation energies of the first and second stages were calculated to be 44.78 kJ/mol and 15.94 kJ/mol, respectively. |
| doi_str_mv | 10.1007/s11771-016-3276-9 |
| format | Article |
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The effects of factors such as reaction temperature and NaOH-to-CBM mass ratio on silicon extraction efficiency were studied. The results show that silicon extraction efficiency increases with increasing the reaction time and NaOH-to-CBM mass ratio. There are two stages for the desilication process of the calcined boron mud. The overall desilication process follows the shrinking-core model, and the first and second stages of the process were determined to obey the shrinking-core model for surface chemical reaction and the diffusion through the product layer, respectively. The activation energies of the first and second stages were calculated to be 44.78 kJ/mol and 15.94 kJ/mol, respectively.</description><identifier>ISSN: 2095-2899</identifier><identifier>EISSN: 2227-5223</identifier><identifier>DOI: 10.1007/s11771-016-3276-9</identifier><language>eng</language><publisher>Changsha: Central South University</publisher><subject>Boron ; Caustic soda ; Chemical and Environmental Engineering ; Chemical reactions ; Diffusion layers ; Engineering ; Kinetics ; Materials ; Metallic Materials ; Metallurgy ; Microprocessors ; Mud ; Reaction time ; Roasting ; Silicon ; Sodium hydroxide ; 媒体 ; 收缩核模型 ; 氢氧化钠 ; 煅烧 ; 熔融 ; 硼泥 ; 脱硅动力学 ; 表面化学反应</subject><ispartof>Journal of Central South University, 2016-09, Vol.23 (9), p.2191-2198</ispartof><rights>Central South University Press and Springer-Verlag Berlin Heidelberg 2016</rights><rights>Copyright Springer Science & Business Media 2016</rights><rights>Copyright © Wanfang Data Co. Ltd. All Rights Reserved.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c379t-db5e584755b1a974771546b640f9983091cb65d0c6765cb78474590cd12ebe583</citedby><cites>FETCH-LOGICAL-c379t-db5e584755b1a974771546b640f9983091cb65d0c6765cb78474590cd12ebe583</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/s11771-016-3276-9$$EPDF$$P50$$Gspringer$$H</linktopdf><linktohtml>$$Uhttps://link.springer.com/10.1007/s11771-016-3276-9$$EHTML$$P50$$Gspringer$$H</linktohtml><link.rule.ids>314,776,780,27901,27902,41464,42533,51294</link.rule.ids></links><search><creatorcontrib>宁志强 宋秋实 翟玉春 谢宏伟 于凯</creatorcontrib><title>Desilication kinetics of calcined boron mud in molten sodium hydroxide media</title><title>Journal of Central South University</title><addtitle>J. Cent. South Univ</addtitle><addtitle>Journal of Central South University of Technology</addtitle><description>Desilication kinetics of calcined boron mud （CBM） occurring in molten sodium hydroxide media was investigated. The effects of factors such as reaction temperature and NaOH-to-CBM mass ratio on silicon extraction efficiency were studied. The results show that silicon extraction efficiency increases with increasing the reaction time and NaOH-to-CBM mass ratio. There are two stages for the desilication process of the calcined boron mud. The overall desilication process follows the shrinking-core model, and the first and second stages of the process were determined to obey the shrinking-core model for surface chemical reaction and the diffusion through the product layer, respectively. The activation energies of the first and second stages were calculated to be 44.78 kJ/mol and 15.94 kJ/mol, respectively.</description><subject>Boron</subject><subject>Caustic soda</subject><subject>Chemical and Environmental Engineering</subject><subject>Chemical reactions</subject><subject>Diffusion layers</subject><subject>Engineering</subject><subject>Kinetics</subject><subject>Materials</subject><subject>Metallic Materials</subject><subject>Metallurgy</subject><subject>Microprocessors</subject><subject>Mud</subject><subject>Reaction time</subject><subject>Roasting</subject><subject>Silicon</subject><subject>Sodium hydroxide</subject><subject>媒体</subject><subject>收缩核模型</subject><subject>氢氧化钠</subject><subject>煅烧</subject><subject>熔融</subject><subject>硼泥</subject><subject>脱硅动力学</subject><subject>表面化学反应</subject><issn>2095-2899</issn><issn>2227-5223</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2016</creationdate><recordtype>article</recordtype><recordid>eNp9kEtLAzEUhQdRsGh_gLtBlzKaxySZLMU3FNzoOkwe00bbpE2m2PrrvWWKunJ1E-53zrmcojjD6AojJK4zxkLgCmFeUSJ4JQ-KESFEVIwQeghvJFlFGimPi3HOXiOKCadc8lExuXPZz71pex9D-eGD673JZexK084NfG2pY4LVYm1LDyPOexfKHK1fL8rZ1qa48daVC2d9e1ocde08u_F-nhRvD_evt0_V5OXx-fZmUhkqZF9ZzRxrasGYxq0UNdzOaq55jTopG4okNpoziwwXnBktAK2ZRMZi4jQo6UlxOfh-tqFrw1S9x3UKkKi-wnRrNxutHIE2kIR2gL4Y6GWKq7XL_S-OmwY10ASnQOGBMinmnFynlskv2rRVGKldy2poWYGv2rWsJGjIoMnAhqlLf5z_EZ3vg2YxTFeg-0niApGawjH0G7qriVo</recordid><startdate>20160901</startdate><enddate>20160901</enddate><creator>宁志强 宋秋实 翟玉春 谢宏伟 于凯</creator><general>Central South University</general><general>Springer Nature B.V</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>20160901</creationdate><title>Desilication kinetics of calcined boron mud in molten sodium hydroxide media</title><author>宁志强 宋秋实 翟玉春 谢宏伟 于凯</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c379t-db5e584755b1a974771546b640f9983091cb65d0c6765cb78474590cd12ebe583</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2016</creationdate><topic>Boron</topic><topic>Caustic soda</topic><topic>Chemical and Environmental Engineering</topic><topic>Chemical reactions</topic><topic>Diffusion layers</topic><topic>Engineering</topic><topic>Kinetics</topic><topic>Materials</topic><topic>Metallic Materials</topic><topic>Metallurgy</topic><topic>Microprocessors</topic><topic>Mud</topic><topic>Reaction time</topic><topic>Roasting</topic><topic>Silicon</topic><topic>Sodium hydroxide</topic><topic>媒体</topic><topic>收缩核模型</topic><topic>氢氧化钠</topic><topic>煅烧</topic><topic>熔融</topic><topic>硼泥</topic><topic>脱硅动力学</topic><topic>表面化学反应</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>宁志强 宋秋实 翟玉春 谢宏伟 于凯</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 - 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>Journal of Central South University</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>宁志强 宋秋实 翟玉春 谢宏伟 于凯</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Desilication kinetics of calcined boron mud in molten sodium hydroxide media</atitle><jtitle>Journal of Central South University</jtitle><stitle>J. Cent. South Univ</stitle><addtitle>Journal of Central South University of Technology</addtitle><date>2016-09-01</date><risdate>2016</risdate><volume>23</volume><issue>9</issue><spage>2191</spage><epage>2198</epage><pages>2191-2198</pages><issn>2095-2899</issn><eissn>2227-5223</eissn><abstract>Desilication kinetics of calcined boron mud （CBM） occurring in molten sodium hydroxide media was investigated. The effects of factors such as reaction temperature and NaOH-to-CBM mass ratio on silicon extraction efficiency were studied. The results show that silicon extraction efficiency increases with increasing the reaction time and NaOH-to-CBM mass ratio. There are two stages for the desilication process of the calcined boron mud. The overall desilication process follows the shrinking-core model, and the first and second stages of the process were determined to obey the shrinking-core model for surface chemical reaction and the diffusion through the product layer, respectively. The activation energies of the first and second stages were calculated to be 44.78 kJ/mol and 15.94 kJ/mol, respectively.</abstract><cop>Changsha</cop><pub>Central South University</pub><doi>10.1007/s11771-016-3276-9</doi><tpages>8</tpages></addata></record> |
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| subjects | Boron Caustic soda Chemical and Environmental Engineering Chemical reactions Diffusion layers Engineering Kinetics Materials Metallic Materials Metallurgy Microprocessors Mud Reaction time Roasting Silicon Sodium hydroxide 媒体 收缩核模型 氢氧化钠 煅烧 熔融 硼泥 脱硅动力学 表面化学反应 |
| title | Desilication kinetics of calcined boron mud in molten sodium hydroxide media |
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