Research on Rare Earth Tailings-Based Slag Used for Dephosphorization of Hot Metal Containing Moderate Amounts of Chromium
The utilization of rare earth tailings still has various disadvantages such as high energy consumption, low utilization ratio and serious pollution, which severely restricts the industrialization. As a result, it is difficult to solve the solid waste treatment problems of rare earth tailings fundame...
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| Veröffentlicht in: | Metallurgical and materials transactions. B, Process metallurgy and materials processing science Process metallurgy and materials processing science, 2022-08, Vol.53 (4), p.2377-2385 |
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| container_title | Metallurgical and materials transactions. B, Process metallurgy and materials processing science |
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| creator | Chen, Liangjun Xue, Haimeng Li, Jie Wan, Yong Xia, Yunjin Lv, Changji |
| description | The utilization of rare earth tailings still has various disadvantages such as high energy consumption, low utilization ratio and serious pollution, which severely restricts the industrialization. As a result, it is difficult to solve the solid waste treatment problems of rare earth tailings fundamentally. To achieve bulk utilization in a way of energy conservation and environmental protection, a novel technology of dephosphorization using rare earth tailings-based slag was proposed to realize both dephosphorization and chromium retention of hot metal containing moderate amounts of chromium. To develop this new technology, a series of equilibrium experiments between slag and hot metal containing moderate amounts of chromium was carried out using a molybdenum disilicide resistance furnace at 1723 K. The effect of slag composition on the oxidation of phosphorus and chromium in hot metal was investigated, and the commercial software FactSage 7.2 was also utilized for analyses. The effective dephosphorization and recycle of rare earth tailings were realized
via
optimizing chemical composition of slag. In addition, the addition of Cr
2
O
3
inhibits the chromium loss significantly, resulting from increased activity of Cr
2
O
3
. When the CaO/Fe
2
O
3
ratio in the initial slag increases, the chromium loss ratio shows a continual declining tendency, while the dephosphorization efficiency first increases and then decreases. With the increase of rare earth tailings proportion (abbreviated as RETP), both the dephosphorization efficiency and chromium loss ratio fall. Both the dephosphorization efficiency and chromium loss ratio show a decreasing tendency with increasing CaF
2
content. |
| doi_str_mv | 10.1007/s11663-022-02536-z |
| format | Article |
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via
optimizing chemical composition of slag. In addition, the addition of Cr
2
O
3
inhibits the chromium loss significantly, resulting from increased activity of Cr
2
O
3
. When the CaO/Fe
2
O
3
ratio in the initial slag increases, the chromium loss ratio shows a continual declining tendency, while the dephosphorization efficiency first increases and then decreases. With the increase of rare earth tailings proportion (abbreviated as RETP), both the dephosphorization efficiency and chromium loss ratio fall. Both the dephosphorization efficiency and chromium loss ratio show a decreasing tendency with increasing CaF
2
content.</description><identifier>ISSN: 1073-5615</identifier><identifier>EISSN: 1543-1916</identifier><identifier>DOI: 10.1007/s11663-022-02536-z</identifier><language>eng</language><publisher>New York: Springer US</publisher><subject>Characterization and Evaluation of Materials ; Chemical composition ; Chemistry and Materials Science ; Chromium oxides ; Dephosphorizing ; Earth ; Efficiency ; Electric resistance furnaces ; Energy consumption ; Environmental protection ; Materials Science ; Metallic Materials ; Molybdenum disilicides ; Nanotechnology ; New technology ; Original Research Article ; Oxidation ; Slag ; Solid wastes ; Structural Materials ; Surfaces and Interfaces ; Tailings ; Thin Films ; Utilization ; Waste treatment</subject><ispartof>Metallurgical and materials transactions. B, Process metallurgy and materials processing science, 2022-08, Vol.53 (4), p.2377-2385</ispartof><rights>The Minerals, Metals & Materials Society and ASM International 2022</rights><rights>The Minerals, Metals & Materials Society and ASM International 2022.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c319t-2776f5dfc9fb444528322b8d76ec1eed2d3b9578c60e1c8a3888754a4304b9333</citedby><cites>FETCH-LOGICAL-c319t-2776f5dfc9fb444528322b8d76ec1eed2d3b9578c60e1c8a3888754a4304b9333</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/s11663-022-02536-z$$EPDF$$P50$$Gspringer$$H</linktopdf><linktohtml>$$Uhttps://link.springer.com/10.1007/s11663-022-02536-z$$EHTML$$P50$$Gspringer$$H</linktohtml><link.rule.ids>314,776,780,27901,27902,41464,42533,51294</link.rule.ids></links><search><creatorcontrib>Chen, Liangjun</creatorcontrib><creatorcontrib>Xue, Haimeng</creatorcontrib><creatorcontrib>Li, Jie</creatorcontrib><creatorcontrib>Wan, Yong</creatorcontrib><creatorcontrib>Xia, Yunjin</creatorcontrib><creatorcontrib>Lv, Changji</creatorcontrib><title>Research on Rare Earth Tailings-Based Slag Used for Dephosphorization of Hot Metal Containing Moderate Amounts of Chromium</title><title>Metallurgical and materials transactions. B, Process metallurgy and materials processing science</title><addtitle>Metall Mater Trans B</addtitle><description>The utilization of rare earth tailings still has various disadvantages such as high energy consumption, low utilization ratio and serious pollution, which severely restricts the industrialization. As a result, it is difficult to solve the solid waste treatment problems of rare earth tailings fundamentally. To achieve bulk utilization in a way of energy conservation and environmental protection, a novel technology of dephosphorization using rare earth tailings-based slag was proposed to realize both dephosphorization and chromium retention of hot metal containing moderate amounts of chromium. To develop this new technology, a series of equilibrium experiments between slag and hot metal containing moderate amounts of chromium was carried out using a molybdenum disilicide resistance furnace at 1723 K. The effect of slag composition on the oxidation of phosphorus and chromium in hot metal was investigated, and the commercial software FactSage 7.2 was also utilized for analyses. The effective dephosphorization and recycle of rare earth tailings were realized
via
optimizing chemical composition of slag. In addition, the addition of Cr
2
O
3
inhibits the chromium loss significantly, resulting from increased activity of Cr
2
O
3
. When the CaO/Fe
2
O
3
ratio in the initial slag increases, the chromium loss ratio shows a continual declining tendency, while the dephosphorization efficiency first increases and then decreases. With the increase of rare earth tailings proportion (abbreviated as RETP), both the dephosphorization efficiency and chromium loss ratio fall. Both the dephosphorization efficiency and chromium loss ratio show a decreasing tendency with increasing CaF
2
content.</description><subject>Characterization and Evaluation of Materials</subject><subject>Chemical composition</subject><subject>Chemistry and Materials Science</subject><subject>Chromium oxides</subject><subject>Dephosphorizing</subject><subject>Earth</subject><subject>Efficiency</subject><subject>Electric resistance furnaces</subject><subject>Energy consumption</subject><subject>Environmental protection</subject><subject>Materials Science</subject><subject>Metallic Materials</subject><subject>Molybdenum disilicides</subject><subject>Nanotechnology</subject><subject>New technology</subject><subject>Original Research Article</subject><subject>Oxidation</subject><subject>Slag</subject><subject>Solid wastes</subject><subject>Structural Materials</subject><subject>Surfaces and Interfaces</subject><subject>Tailings</subject><subject>Thin Films</subject><subject>Utilization</subject><subject>Waste treatment</subject><issn>1073-5615</issn><issn>1543-1916</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2022</creationdate><recordtype>article</recordtype><sourceid>BENPR</sourceid><recordid>eNp9kL1OwzAURiMEEqXwAkyWmA3-ie1kLKFQJCqk0s6WkzhNqiQutjOQp8clSGwMV_cO53xX-qLoFqN7jJB4cBhzTiEiJAyjHI5n0QyzmEKcYn4ebiQoZByzy-jKuQNCiKcpnUXjRjutbFED04ONshoslfU12Kqmbfq9g4_K6RJ8tGoPdqerMhY86WNtXBjbjMo3wTQVWBkP1tqrFmSm96rpgw7WptRWeQ0WnRl6705gVlvTNUN3HV1UqnX65nfPo93zcput4Nv7y2u2eIMFxamHRAhesbIq0iqP45iRhBKSJ6XgusBal6SkecpEUnCkcZEomiSJYLGKKYrzlFI6j-6m3KM1n4N2Xh7MYPvwUhIeWIGFIIEiE1VY45zVlTzaplP2S2IkTx3LqWMZOpY_HcsxSHSSXID7vbZ_0f9Y33G1f-4</recordid><startdate>20220801</startdate><enddate>20220801</enddate><creator>Chen, Liangjun</creator><creator>Xue, Haimeng</creator><creator>Li, Jie</creator><creator>Wan, Yong</creator><creator>Xia, Yunjin</creator><creator>Lv, Changji</creator><general>Springer US</general><general>Springer Nature B.V</general><scope>AAYXX</scope><scope>CITATION</scope><scope>3V.</scope><scope>4T-</scope><scope>4U-</scope><scope>7SR</scope><scope>7XB</scope><scope>88I</scope><scope>8AF</scope><scope>8AO</scope><scope>8BQ</scope><scope>8FD</scope><scope>8FE</scope><scope>8FG</scope><scope>8FK</scope><scope>ABJCF</scope><scope>ABUWG</scope><scope>AFKRA</scope><scope>AZQEC</scope><scope>BENPR</scope><scope>BGLVJ</scope><scope>CCPQU</scope><scope>D1I</scope><scope>DWQXO</scope><scope>GNUQQ</scope><scope>HCIFZ</scope><scope>JG9</scope><scope>KB.</scope><scope>L6V</scope><scope>M2P</scope><scope>M7S</scope><scope>PDBOC</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PRINS</scope><scope>PTHSS</scope><scope>Q9U</scope><scope>S0X</scope></search><sort><creationdate>20220801</creationdate><title>Research on Rare Earth Tailings-Based Slag Used for Dephosphorization of Hot Metal Containing Moderate Amounts of Chromium</title><author>Chen, Liangjun ; Xue, Haimeng ; Li, Jie ; Wan, Yong ; Xia, Yunjin ; Lv, Changji</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c319t-2776f5dfc9fb444528322b8d76ec1eed2d3b9578c60e1c8a3888754a4304b9333</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2022</creationdate><topic>Characterization and Evaluation of Materials</topic><topic>Chemical composition</topic><topic>Chemistry and Materials Science</topic><topic>Chromium oxides</topic><topic>Dephosphorizing</topic><topic>Earth</topic><topic>Efficiency</topic><topic>Electric resistance furnaces</topic><topic>Energy consumption</topic><topic>Environmental protection</topic><topic>Materials Science</topic><topic>Metallic Materials</topic><topic>Molybdenum disilicides</topic><topic>Nanotechnology</topic><topic>New technology</topic><topic>Original Research Article</topic><topic>Oxidation</topic><topic>Slag</topic><topic>Solid wastes</topic><topic>Structural Materials</topic><topic>Surfaces and Interfaces</topic><topic>Tailings</topic><topic>Thin Films</topic><topic>Utilization</topic><topic>Waste treatment</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Chen, Liangjun</creatorcontrib><creatorcontrib>Xue, Haimeng</creatorcontrib><creatorcontrib>Li, Jie</creatorcontrib><creatorcontrib>Wan, Yong</creatorcontrib><creatorcontrib>Xia, Yunjin</creatorcontrib><creatorcontrib>Lv, Changji</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>ProQuest Science Journals</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><jtitle>Metallurgical and materials transactions. 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B, Process metallurgy and materials processing science</jtitle><stitle>Metall Mater Trans B</stitle><date>2022-08-01</date><risdate>2022</risdate><volume>53</volume><issue>4</issue><spage>2377</spage><epage>2385</epage><pages>2377-2385</pages><issn>1073-5615</issn><eissn>1543-1916</eissn><abstract>The utilization of rare earth tailings still has various disadvantages such as high energy consumption, low utilization ratio and serious pollution, which severely restricts the industrialization. As a result, it is difficult to solve the solid waste treatment problems of rare earth tailings fundamentally. To achieve bulk utilization in a way of energy conservation and environmental protection, a novel technology of dephosphorization using rare earth tailings-based slag was proposed to realize both dephosphorization and chromium retention of hot metal containing moderate amounts of chromium. To develop this new technology, a series of equilibrium experiments between slag and hot metal containing moderate amounts of chromium was carried out using a molybdenum disilicide resistance furnace at 1723 K. The effect of slag composition on the oxidation of phosphorus and chromium in hot metal was investigated, and the commercial software FactSage 7.2 was also utilized for analyses. The effective dephosphorization and recycle of rare earth tailings were realized
via
optimizing chemical composition of slag. In addition, the addition of Cr
2
O
3
inhibits the chromium loss significantly, resulting from increased activity of Cr
2
O
3
. When the CaO/Fe
2
O
3
ratio in the initial slag increases, the chromium loss ratio shows a continual declining tendency, while the dephosphorization efficiency first increases and then decreases. With the increase of rare earth tailings proportion (abbreviated as RETP), both the dephosphorization efficiency and chromium loss ratio fall. Both the dephosphorization efficiency and chromium loss ratio show a decreasing tendency with increasing CaF
2
content.</abstract><cop>New York</cop><pub>Springer US</pub><doi>10.1007/s11663-022-02536-z</doi><tpages>9</tpages></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 1073-5615 |
| ispartof | Metallurgical and materials transactions. B, Process metallurgy and materials processing science, 2022-08, Vol.53 (4), p.2377-2385 |
| issn | 1073-5615 1543-1916 |
| language | eng |
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| source | SpringerLink Journals - AutoHoldings |
| subjects | Characterization and Evaluation of Materials Chemical composition Chemistry and Materials Science Chromium oxides Dephosphorizing Earth Efficiency Electric resistance furnaces Energy consumption Environmental protection Materials Science Metallic Materials Molybdenum disilicides Nanotechnology New technology Original Research Article Oxidation Slag Solid wastes Structural Materials Surfaces and Interfaces Tailings Thin Films Utilization Waste treatment |
| title | Research on Rare Earth Tailings-Based Slag Used for Dephosphorization of Hot Metal Containing Moderate Amounts of Chromium |
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