Kinetics of Silicothermic Reduction of Manganese Oxide for Advanced High-Strength Steel Production
The kinetics of silicothermic reduction of manganese oxide from MnO–SiO 2 –CaO–Al 2 O 3 slags reacting with Fe-Si droplets were studied in the temperature range of 1823 K to 1923 K (1550 °C to 1650 °C). The effects of initial droplet mass, initial droplet silicon content, and initial slag manganese...
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| Veröffentlicht in: | Metallurgical and materials transactions. B, Process metallurgy and materials processing science Process metallurgy and materials processing science, 2017-06, Vol.48 (3), p.1613-1624 |
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| container_title | Metallurgical and materials transactions. B, Process metallurgy and materials processing science |
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| creator | Jamieson, B. J. Coley, K. S. |
| description | The kinetics of silicothermic reduction of manganese oxide from MnO–SiO
2
–CaO–Al
2
O
3
slags reacting with Fe-Si droplets were studied in the temperature range of 1823 K to 1923 K (1550 °C to 1650 °C). The effects of initial droplet mass, initial droplet silicon content, and initial slag manganese oxide content were studied. Data obtained for 15 pct silicon showed agreement with control by mass transport of MnO in the slag with a mass transfer coefficient (
k
s
) of 4.0 × 10
−5
m/s at 1873 K (1600 °C). However, when this rate-determining step was tested at different initial silicon contents, the agreement was lost, suggesting mixed control between silicon transport in the metal and manganese oxide transport in the slag. Increasing the temperature resulted in a decrease in the rate of reaction because of an increase in the favorability of SiO as a product. Significant gas generation was found during all experiments, as a result of silicon monoxide production. The ratio of silicon monoxide to silica formation was increased by factors favoring silicon transport over that of manganese, further supporting the conclusion that the reaction is under mixed control by transports of both silicon and manganese oxide. |
| doi_str_mv | 10.1007/s11663-017-0967-z |
| format | Article |
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2
–CaO–Al
2
O
3
slags reacting with Fe-Si droplets were studied in the temperature range of 1823 K to 1923 K (1550 °C to 1650 °C). The effects of initial droplet mass, initial droplet silicon content, and initial slag manganese oxide content were studied. Data obtained for 15 pct silicon showed agreement with control by mass transport of MnO in the slag with a mass transfer coefficient (
k
s
) of 4.0 × 10
−5
m/s at 1873 K (1600 °C). However, when this rate-determining step was tested at different initial silicon contents, the agreement was lost, suggesting mixed control between silicon transport in the metal and manganese oxide transport in the slag. Increasing the temperature resulted in a decrease in the rate of reaction because of an increase in the favorability of SiO as a product. Significant gas generation was found during all experiments, as a result of silicon monoxide production. The ratio of silicon monoxide to silica formation was increased by factors favoring silicon transport over that of manganese, further supporting the conclusion that the reaction is under mixed control by transports of both silicon and manganese oxide.</description><identifier>ISSN: 1073-5615</identifier><identifier>EISSN: 1543-1916</identifier><identifier>DOI: 10.1007/s11663-017-0967-z</identifier><identifier>CODEN: MTTBCR</identifier><language>eng</language><publisher>New York: Springer US</publisher><subject>Characterization and Evaluation of Materials ; Chemistry and Materials Science ; Droplets ; Iron and steel making ; Manganese oxides ; Materials Science ; Metallic Materials ; Nanotechnology ; Reduction (chemical) ; Silicon ; Silicothermic reactions ; Slags ; Structural Materials ; Surfaces and Interfaces ; Thin Films ; Transport</subject><ispartof>Metallurgical and materials transactions. B, Process metallurgy and materials processing science, 2017-06, Vol.48 (3), p.1613-1624</ispartof><rights>The Minerals, Metals & Materials Society and ASM International 2017</rights><rights>Metallurgical and Materials Transactions B is a copyright of Springer, 2017.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c349t-7bbb11ba99525ca8801564cc3b900ce1e0830b1931e8fe5928cb9e5d76d3a4bc3</citedby><cites>FETCH-LOGICAL-c349t-7bbb11ba99525ca8801564cc3b900ce1e0830b1931e8fe5928cb9e5d76d3a4bc3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://link.springer.com/content/pdf/10.1007/s11663-017-0967-z$$EPDF$$P50$$Gspringer$$H</linktopdf><linktohtml>$$Uhttps://link.springer.com/10.1007/s11663-017-0967-z$$EHTML$$P50$$Gspringer$$H</linktohtml><link.rule.ids>314,780,784,27923,27924,41487,42556,51318</link.rule.ids></links><search><creatorcontrib>Jamieson, B. J.</creatorcontrib><creatorcontrib>Coley, K. S.</creatorcontrib><title>Kinetics of Silicothermic Reduction of Manganese Oxide for Advanced High-Strength Steel Production</title><title>Metallurgical and materials transactions. B, Process metallurgy and materials processing science</title><addtitle>Metall Mater Trans B</addtitle><description>The kinetics of silicothermic reduction of manganese oxide from MnO–SiO
2
–CaO–Al
2
O
3
slags reacting with Fe-Si droplets were studied in the temperature range of 1823 K to 1923 K (1550 °C to 1650 °C). The effects of initial droplet mass, initial droplet silicon content, and initial slag manganese oxide content were studied. Data obtained for 15 pct silicon showed agreement with control by mass transport of MnO in the slag with a mass transfer coefficient (
k
s
) of 4.0 × 10
−5
m/s at 1873 K (1600 °C). However, when this rate-determining step was tested at different initial silicon contents, the agreement was lost, suggesting mixed control between silicon transport in the metal and manganese oxide transport in the slag. Increasing the temperature resulted in a decrease in the rate of reaction because of an increase in the favorability of SiO as a product. Significant gas generation was found during all experiments, as a result of silicon monoxide production. The ratio of silicon monoxide to silica formation was increased by factors favoring silicon transport over that of manganese, further supporting the conclusion that the reaction is under mixed control by transports of both silicon and manganese oxide.</description><subject>Characterization and Evaluation of Materials</subject><subject>Chemistry and Materials Science</subject><subject>Droplets</subject><subject>Iron and steel making</subject><subject>Manganese oxides</subject><subject>Materials Science</subject><subject>Metallic Materials</subject><subject>Nanotechnology</subject><subject>Reduction (chemical)</subject><subject>Silicon</subject><subject>Silicothermic reactions</subject><subject>Slags</subject><subject>Structural Materials</subject><subject>Surfaces and Interfaces</subject><subject>Thin Films</subject><subject>Transport</subject><issn>1073-5615</issn><issn>1543-1916</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2017</creationdate><recordtype>article</recordtype><sourceid>ABUWG</sourceid><sourceid>AFKRA</sourceid><sourceid>AZQEC</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><sourceid>GNUQQ</sourceid><recordid>eNp1kE1LxDAQhosoqKs_wFvAi5foTNO0zVEWv1BZcfUcmnS6G-k2a9IV9dfbZfcggqcZmOd9GZ4kOUE4R4DiIiLmueCABQeVF_x7JzlAmQmOCvPdYYdCcJmj3E8OY3wDgFwpcZCYe9dR72xkvmFT1zrr-zmFhbPsmeqV7Z3v1qfHqptVHUVik09XE2t8YJf1R9VZqtmtm835tA_Uzfo5m_ZELXsKfhs_Svaaqo10vJ2j5PX66mV8yx8mN3fjywduRaZ6XhhjEE2llEylrcoSUOaZtcIoAEtIUAowqARS2ZBUaWmNIlkXeS2qzFgxSs42vcvg31cUe71w0VLbDn_7VdSoIEszUah0QE__oG9-FbrhO42lShWoUuJA4YaywccYqNHL4BZV-NIIem1db6zrwbpeW9ffQybdZOLAdjMKv5r_Df0AhYeFiA</recordid><startdate>20170601</startdate><enddate>20170601</enddate><creator>Jamieson, B. 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J. ; Coley, K. S.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c349t-7bbb11ba99525ca8801564cc3b900ce1e0830b1931e8fe5928cb9e5d76d3a4bc3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2017</creationdate><topic>Characterization and Evaluation of Materials</topic><topic>Chemistry and Materials Science</topic><topic>Droplets</topic><topic>Iron and steel making</topic><topic>Manganese oxides</topic><topic>Materials Science</topic><topic>Metallic Materials</topic><topic>Nanotechnology</topic><topic>Reduction (chemical)</topic><topic>Silicon</topic><topic>Silicothermic reactions</topic><topic>Slags</topic><topic>Structural Materials</topic><topic>Surfaces and Interfaces</topic><topic>Thin Films</topic><topic>Transport</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Jamieson, B. J.</creatorcontrib><creatorcontrib>Coley, K. S.</creatorcontrib><collection>CrossRef</collection><collection>ProQuest Central (Corporate)</collection><collection>Docstoc</collection><collection>University Readers</collection><collection>Engineered Materials Abstracts</collection><collection>ProQuest Central (purchase pre-March 2016)</collection><collection>Science Database (Alumni Edition)</collection><collection>STEM Database</collection><collection>ProQuest Pharma Collection</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>ProQuest SciTech Collection</collection><collection>ProQuest Technology Collection</collection><collection>ProQuest Central (Alumni) (purchase pre-March 2016)</collection><collection>Materials Science & Engineering Collection</collection><collection>ProQuest Central (Alumni Edition)</collection><collection>ProQuest Central UK/Ireland</collection><collection>ProQuest Central Essentials</collection><collection>ProQuest Central</collection><collection>Technology Collection</collection><collection>ProQuest One Community College</collection><collection>ProQuest Materials Science Collection</collection><collection>ProQuest Central Korea</collection><collection>ProQuest Central Student</collection><collection>SciTech Premium Collection</collection><collection>Materials Research Database</collection><collection>Materials Science Database</collection><collection>ProQuest Engineering Collection</collection><collection>Science Database</collection><collection>Engineering Database</collection><collection>Materials Science Collection</collection><collection>ProQuest One Academic Eastern Edition (DO NOT USE)</collection><collection>ProQuest One Academic</collection><collection>ProQuest One Academic UKI Edition</collection><collection>ProQuest Central China</collection><collection>Engineering Collection</collection><collection>ProQuest Central Basic</collection><collection>SIRS Editorial</collection><collection>Aluminium Industry Abstracts</collection><jtitle>Metallurgical and materials transactions. B, Process metallurgy and materials processing science</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Jamieson, B. J.</au><au>Coley, K. S.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Kinetics of Silicothermic Reduction of Manganese Oxide for Advanced High-Strength Steel Production</atitle><jtitle>Metallurgical and materials transactions. B, Process metallurgy and materials processing science</jtitle><stitle>Metall Mater Trans B</stitle><date>2017-06-01</date><risdate>2017</risdate><volume>48</volume><issue>3</issue><spage>1613</spage><epage>1624</epage><pages>1613-1624</pages><issn>1073-5615</issn><eissn>1543-1916</eissn><coden>MTTBCR</coden><abstract>The kinetics of silicothermic reduction of manganese oxide from MnO–SiO
2
–CaO–Al
2
O
3
slags reacting with Fe-Si droplets were studied in the temperature range of 1823 K to 1923 K (1550 °C to 1650 °C). The effects of initial droplet mass, initial droplet silicon content, and initial slag manganese oxide content were studied. Data obtained for 15 pct silicon showed agreement with control by mass transport of MnO in the slag with a mass transfer coefficient (
k
s
) of 4.0 × 10
−5
m/s at 1873 K (1600 °C). However, when this rate-determining step was tested at different initial silicon contents, the agreement was lost, suggesting mixed control between silicon transport in the metal and manganese oxide transport in the slag. Increasing the temperature resulted in a decrease in the rate of reaction because of an increase in the favorability of SiO as a product. Significant gas generation was found during all experiments, as a result of silicon monoxide production. The ratio of silicon monoxide to silica formation was increased by factors favoring silicon transport over that of manganese, further supporting the conclusion that the reaction is under mixed control by transports of both silicon and manganese oxide.</abstract><cop>New York</cop><pub>Springer US</pub><doi>10.1007/s11663-017-0967-z</doi><tpages>12</tpages></addata></record> |
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| subjects | Characterization and Evaluation of Materials Chemistry and Materials Science Droplets Iron and steel making Manganese oxides Materials Science Metallic Materials Nanotechnology Reduction (chemical) Silicon Silicothermic reactions Slags Structural Materials Surfaces and Interfaces Thin Films Transport |
| title | Kinetics of Silicothermic Reduction of Manganese Oxide for Advanced High-Strength Steel Production |
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