Two Liquid Phases Separation of Fe-Cu-B and Fe-Cu-Ag-B systems at 1873 and 1523 K
In recycling of steel scraps, the accumulation of tramp element in steel has been one of serious problems. Because copper in steel causes hot-shortness, the copper content of steel scraps is strictly adjusted under the upper limiting value in steelmaking process. In addition, recycling of steel scra...
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| Veröffentlicht in: | Journal of High Temperature Society 2009/01/21, Vol.35(1), pp.40-44 |
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| container_title | Journal of High Temperature Society |
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| creator | ONO-NAKAZATO, Hideki YAMAGUCHI, Katsuhiro AGAWA, Shingo TAGUCHI, Kenji USUI, Tateo |
| description | In recycling of steel scraps, the accumulation of tramp element in steel has been one of serious problems. Because copper in steel causes hot-shortness, the copper content of steel scraps is strictly adjusted under the upper limiting value in steelmaking process. In addition, recycling of steel scrap is necessary for energy savings and to realize a recycling-oriented society. In the present study,it was found that addition of boron could separate a single liquid in Fe-Cu system into Fe-rich and Cu-rich phases. Equilibrium experiments in Fe-Cu-B ternary system at 1873 and 1523 K showed that the copper content in Fe-rich phase decreased to 4.3 mass%. Subsequently, equilibrium experiments in Fe-Cu-Ag-B system were carried out and the copper was observed to be distributed between Fe-B and Ag phases. The distribution ratio of [mass%Cu](in Ag) / [mass%Cu](in Fe) was about 6 at 1873 K, regardless of copper content. It was found that the copper content of iron could be decreased by using silver as the solvent. |
| doi_str_mv | 10.7791/jhts.35.40 |
| format | Article |
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Because copper in steel causes hot-shortness, the copper content of steel scraps is strictly adjusted under the upper limiting value in steelmaking process. In addition, recycling of steel scrap is necessary for energy savings and to realize a recycling-oriented society. In the present study,it was found that addition of boron could separate a single liquid in Fe-Cu system into Fe-rich and Cu-rich phases. Equilibrium experiments in Fe-Cu-B ternary system at 1873 and 1523 K showed that the copper content in Fe-rich phase decreased to 4.3 mass%. Subsequently, equilibrium experiments in Fe-Cu-Ag-B system were carried out and the copper was observed to be distributed between Fe-B and Ag phases. The distribution ratio of [mass%Cu](in Ag) / [mass%Cu](in Fe) was about 6 at 1873 K, regardless of copper content. It was found that the copper content of iron could be decreased by using silver as the solvent.</description><identifier>ISSN: 0387-1096</identifier><identifier>DOI: 10.7791/jhts.35.40</identifier><language>jpn</language><publisher>High Temperature Society of Japan</publisher><subject>Boron ; Copper ; Distribution ratio ; Recycling ; Silver ; Steel scrap ; Steelmaking</subject><ispartof>Journal of High Temperature Society, 2009/01/21, Vol.35(1), pp.40-44</ispartof><rights>2009 by High Temperature Society of Japan</rights><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,1883,27924,27925</link.rule.ids></links><search><creatorcontrib>ONO-NAKAZATO, Hideki</creatorcontrib><creatorcontrib>YAMAGUCHI, Katsuhiro</creatorcontrib><creatorcontrib>AGAWA, Shingo</creatorcontrib><creatorcontrib>TAGUCHI, Kenji</creatorcontrib><creatorcontrib>USUI, Tateo</creatorcontrib><title>Two Liquid Phases Separation of Fe-Cu-B and Fe-Cu-Ag-B systems at 1873 and 1523 K</title><title>Journal of High Temperature Society</title><addtitle>Journal of High Temperature Society</addtitle><description>In recycling of steel scraps, the accumulation of tramp element in steel has been one of serious problems. Because copper in steel causes hot-shortness, the copper content of steel scraps is strictly adjusted under the upper limiting value in steelmaking process. In addition, recycling of steel scrap is necessary for energy savings and to realize a recycling-oriented society. In the present study,it was found that addition of boron could separate a single liquid in Fe-Cu system into Fe-rich and Cu-rich phases. Equilibrium experiments in Fe-Cu-B ternary system at 1873 and 1523 K showed that the copper content in Fe-rich phase decreased to 4.3 mass%. Subsequently, equilibrium experiments in Fe-Cu-Ag-B system were carried out and the copper was observed to be distributed between Fe-B and Ag phases. The distribution ratio of [mass%Cu](in Ag) / [mass%Cu](in Fe) was about 6 at 1873 K, regardless of copper content. It was found that the copper content of iron could be decreased by using silver as the solvent.</description><subject>Boron</subject><subject>Copper</subject><subject>Distribution ratio</subject><subject>Recycling</subject><subject>Silver</subject><subject>Steel scrap</subject><subject>Steelmaking</subject><issn>0387-1096</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2009</creationdate><recordtype>article</recordtype><recordid>eNo9UD1PwzAU9AASpbDwCzyxpdh5dpxMqFQUEJUAUWbrJXluE6VJGztC_fcUWrHch-50wzF2I8XEmEze1evgJ6AnSpyxkYDURFJkyQW79L4WBy9TPWIfy--OL6rdUJX8fY2ePP-kLfYYqq7lneNzimZD9MCxLU96ujpYv_eBNp5j4DI18BdLHQN_vWLnDhtP1yces6_543L2HC3enl5m00VUS6UgMkmaONCxIJMqQ7lGNMIYLLVwmaOM0iIppFDoqExycipOwWkhCg0F5LmGMbs97m77bjeQD3ZT-YKaBlvqBm8BMhVrAYfi_bFY-4Arstu-2mC_t9iHqmjI_v5kQVt5BCX-k2KNvaUWfgD0smOK</recordid><startdate>20090101</startdate><enddate>20090101</enddate><creator>ONO-NAKAZATO, Hideki</creator><creator>YAMAGUCHI, Katsuhiro</creator><creator>AGAWA, Shingo</creator><creator>TAGUCHI, Kenji</creator><creator>USUI, Tateo</creator><general>High Temperature Society of Japan</general><scope>7SR</scope><scope>8BQ</scope><scope>8FD</scope><scope>JG9</scope></search><sort><creationdate>20090101</creationdate><title>Two Liquid Phases Separation of Fe-Cu-B and Fe-Cu-Ag-B systems at 1873 and 1523 K</title><author>ONO-NAKAZATO, Hideki ; YAMAGUCHI, Katsuhiro ; AGAWA, Shingo ; TAGUCHI, Kenji ; USUI, Tateo</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-j1443-7686f3520e7847eb5aa7077ad50f9fe9e8c6c104afed6bef4283f500c53c3bb53</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>jpn</language><creationdate>2009</creationdate><topic>Boron</topic><topic>Copper</topic><topic>Distribution ratio</topic><topic>Recycling</topic><topic>Silver</topic><topic>Steel scrap</topic><topic>Steelmaking</topic><toplevel>online_resources</toplevel><creatorcontrib>ONO-NAKAZATO, Hideki</creatorcontrib><creatorcontrib>YAMAGUCHI, Katsuhiro</creatorcontrib><creatorcontrib>AGAWA, Shingo</creatorcontrib><creatorcontrib>TAGUCHI, Kenji</creatorcontrib><creatorcontrib>USUI, Tateo</creatorcontrib><collection>Engineered Materials Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><jtitle>Journal of High Temperature Society</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>ONO-NAKAZATO, Hideki</au><au>YAMAGUCHI, Katsuhiro</au><au>AGAWA, Shingo</au><au>TAGUCHI, Kenji</au><au>USUI, Tateo</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Two Liquid Phases Separation of Fe-Cu-B and Fe-Cu-Ag-B systems at 1873 and 1523 K</atitle><jtitle>Journal of High Temperature Society</jtitle><addtitle>Journal of High Temperature Society</addtitle><date>2009-01-01</date><risdate>2009</risdate><volume>35</volume><issue>1</issue><spage>40</spage><epage>44</epage><pages>40-44</pages><issn>0387-1096</issn><abstract>In recycling of steel scraps, the accumulation of tramp element in steel has been one of serious problems. Because copper in steel causes hot-shortness, the copper content of steel scraps is strictly adjusted under the upper limiting value in steelmaking process. In addition, recycling of steel scrap is necessary for energy savings and to realize a recycling-oriented society. In the present study,it was found that addition of boron could separate a single liquid in Fe-Cu system into Fe-rich and Cu-rich phases. Equilibrium experiments in Fe-Cu-B ternary system at 1873 and 1523 K showed that the copper content in Fe-rich phase decreased to 4.3 mass%. Subsequently, equilibrium experiments in Fe-Cu-Ag-B system were carried out and the copper was observed to be distributed between Fe-B and Ag phases. The distribution ratio of [mass%Cu](in Ag) / [mass%Cu](in Fe) was about 6 at 1873 K, regardless of copper content. It was found that the copper content of iron could be decreased by using silver as the solvent.</abstract><pub>High Temperature Society of Japan</pub><doi>10.7791/jhts.35.40</doi><tpages>5</tpages><oa>free_for_read</oa></addata></record> |
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| ispartof | Journal of High Temperature Society, 2009/01/21, Vol.35(1), pp.40-44 |
| issn | 0387-1096 |
| language | jpn |
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| source | J-STAGE Free; Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals |
| subjects | Boron Copper Distribution ratio Recycling Silver Steel scrap Steelmaking |
| title | Two Liquid Phases Separation of Fe-Cu-B and Fe-Cu-Ag-B systems at 1873 and 1523 K |
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