Waste Slime of the V2O5 Production according to the Lime–Sulfuric Acid Technology as a Technical Raw Material for Vanadium Recovery
Representative samples of the waste slime of the vanadium pentoxide V 2 O 5 production from converter slags according to the lime–sulfuric acid technology are studied to develop its effective reclamation with vanadium recovery. The phase composition of the slime consists of gypsum, hematite, quartz,...
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| Veröffentlicht in: | Russian metallurgy Metally 2019-09, Vol.2019 (9), p.873-882 |
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| container_title | Russian metallurgy Metally |
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| creator | Sadykhov, G. B. Goncharov, K. V. Olyunina, T. V. Kashekov, D. Yu |
| description | Representative samples of the waste slime of the vanadium pentoxide V
2
O
5
production from converter slags according to the lime–sulfuric acid technology are studied to develop its effective reclamation with vanadium recovery. The phase composition of the slime consists of gypsum, hematite, quartz, cristobalite, pseudo-brookite, complex ferrite, and various calcium-containing silicates. The residual vanadium content in the waste slime that is based on V
2
O
5
is 2–7%, the major part of which is sealed (insoluble) vanadium and the minor part is acid-soluble vanadium. A high vanadium content in the slime is found to be related to the disadvantages of oxidizing roasting of a vanadium slag with a lime addition in a rotary kiln and sulfuric acid leaching of a cinder under industrial conditions. To study the vanadium recovery from the slime, we analyzed direct sulfuric acid leaching of the slime and its leaching after preliminary oxidizing roasting. The optimum parameters of oxidizing roasting and sulfuric acid leaching are determined. Oxidizing roasting of the slime in the temperature range 925–1050°C is shown to substantially increase the vanadium recovery during subsequent leaching of the roasting product by weak sulfuric acid solutions. To exclude the formation of aggressive compounds SO
2
and SO
3
in roasting, it is necessary to separate a fine gypsum-containing fraction from the slime before oxidizing roasting in order to perform acid leaching. |
| doi_str_mv | 10.1134/S0036029519090088 |
| format | Article |
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2
O
5
production from converter slags according to the lime–sulfuric acid technology are studied to develop its effective reclamation with vanadium recovery. The phase composition of the slime consists of gypsum, hematite, quartz, cristobalite, pseudo-brookite, complex ferrite, and various calcium-containing silicates. The residual vanadium content in the waste slime that is based on V
2
O
5
is 2–7%, the major part of which is sealed (insoluble) vanadium and the minor part is acid-soluble vanadium. A high vanadium content in the slime is found to be related to the disadvantages of oxidizing roasting of a vanadium slag with a lime addition in a rotary kiln and sulfuric acid leaching of a cinder under industrial conditions. To study the vanadium recovery from the slime, we analyzed direct sulfuric acid leaching of the slime and its leaching after preliminary oxidizing roasting. The optimum parameters of oxidizing roasting and sulfuric acid leaching are determined. Oxidizing roasting of the slime in the temperature range 925–1050°C is shown to substantially increase the vanadium recovery during subsequent leaching of the roasting product by weak sulfuric acid solutions. To exclude the formation of aggressive compounds SO
2
and SO
3
in roasting, it is necessary to separate a fine gypsum-containing fraction from the slime before oxidizing roasting in order to perform acid leaching.</description><identifier>ISSN: 0036-0295</identifier><identifier>EISSN: 1555-6255</identifier><identifier>EISSN: 1531-8648</identifier><identifier>DOI: 10.1134/S0036029519090088</identifier><language>eng</language><publisher>Moscow: Pleiades Publishing</publisher><subject>Brookite ; Chemistry and Materials Science ; Cristobalite ; Gypsum ; Hematite ; Lime ; Materials recovery ; Materials Science ; Metallic Materials ; Oxidation ; Phase composition ; Reclamation ; Roasting ; Silicates ; Slag ; Slime ; Steel converters ; Sulfur trioxide ; Sulfuric acid ; Sulfuric acid leaching ; Vanadium pentoxide</subject><ispartof>Russian metallurgy Metally, 2019-09, Vol.2019 (9), p.873-882</ispartof><rights>Pleiades Publishing, Ltd. 2019</rights><rights>Copyright Springer Nature B.V. 2019</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c353t-79b5b9f8971e3d59d1e8d9abaeae78d023f2f3c522075d7f6828e47a028c7fc3</citedby><cites>FETCH-LOGICAL-c353t-79b5b9f8971e3d59d1e8d9abaeae78d023f2f3c522075d7f6828e47a028c7fc3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://link.springer.com/content/pdf/10.1134/S0036029519090088$$EPDF$$P50$$Gspringer$$H</linktopdf><linktohtml>$$Uhttps://link.springer.com/10.1134/S0036029519090088$$EHTML$$P50$$Gspringer$$H</linktohtml><link.rule.ids>314,780,784,27924,27925,41488,42557,51319</link.rule.ids></links><search><creatorcontrib>Sadykhov, G. B.</creatorcontrib><creatorcontrib>Goncharov, K. V.</creatorcontrib><creatorcontrib>Olyunina, T. V.</creatorcontrib><creatorcontrib>Kashekov, D. Yu</creatorcontrib><title>Waste Slime of the V2O5 Production according to the Lime–Sulfuric Acid Technology as a Technical Raw Material for Vanadium Recovery</title><title>Russian metallurgy Metally</title><addtitle>Russ. Metall</addtitle><description>Representative samples of the waste slime of the vanadium pentoxide V
2
O
5
production from converter slags according to the lime–sulfuric acid technology are studied to develop its effective reclamation with vanadium recovery. The phase composition of the slime consists of gypsum, hematite, quartz, cristobalite, pseudo-brookite, complex ferrite, and various calcium-containing silicates. The residual vanadium content in the waste slime that is based on V
2
O
5
is 2–7%, the major part of which is sealed (insoluble) vanadium and the minor part is acid-soluble vanadium. A high vanadium content in the slime is found to be related to the disadvantages of oxidizing roasting of a vanadium slag with a lime addition in a rotary kiln and sulfuric acid leaching of a cinder under industrial conditions. To study the vanadium recovery from the slime, we analyzed direct sulfuric acid leaching of the slime and its leaching after preliminary oxidizing roasting. The optimum parameters of oxidizing roasting and sulfuric acid leaching are determined. Oxidizing roasting of the slime in the temperature range 925–1050°C is shown to substantially increase the vanadium recovery during subsequent leaching of the roasting product by weak sulfuric acid solutions. To exclude the formation of aggressive compounds SO
2
and SO
3
in roasting, it is necessary to separate a fine gypsum-containing fraction from the slime before oxidizing roasting in order to perform acid leaching.</description><subject>Brookite</subject><subject>Chemistry and Materials Science</subject><subject>Cristobalite</subject><subject>Gypsum</subject><subject>Hematite</subject><subject>Lime</subject><subject>Materials recovery</subject><subject>Materials Science</subject><subject>Metallic Materials</subject><subject>Oxidation</subject><subject>Phase composition</subject><subject>Reclamation</subject><subject>Roasting</subject><subject>Silicates</subject><subject>Slag</subject><subject>Slime</subject><subject>Steel converters</subject><subject>Sulfur trioxide</subject><subject>Sulfuric acid</subject><subject>Sulfuric acid leaching</subject><subject>Vanadium pentoxide</subject><issn>0036-0295</issn><issn>1555-6255</issn><issn>1531-8648</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2019</creationdate><recordtype>article</recordtype><recordid>eNp1kMtKAzEYhYMoWKsP4C7gejSXZpIsS_EGlUpb6nJIc2lTppOazCjdufEJfEOfxKkVXIirn8P5zvnhAHCO0SXGtHc1QYjmiEiGJZIICXEAOpgxluWEsUPQ2dnZzj8GJymtEOII5bID3p9Uqi2clH5tYXCwXlo4IyMGH2Mwja59qKDSOkTjqwWswzcwbOHPt49JU7omeg372hs4tXpZhTIstlAlqPbaa1XCsXqFD6q20bfChQhnqlLGN2s4tjq82Lg9BUdOlcme_dwumN5cTwd32XB0ez_oDzNNGa0zLudsLp2QHFtqmDTYCiPVXFlluTCIUEcc1YwQxJnhLhdE2B5XiAjNnaZdcLGv3cTw3NhUF6vQxKr9WBAiBeYiF72WwntKx5BStK7YRL9WcVtgVOzGLv6M3WbIPpNatlrY-Nv8f-gLL9eCJA</recordid><startdate>20190901</startdate><enddate>20190901</enddate><creator>Sadykhov, G. B.</creator><creator>Goncharov, K. V.</creator><creator>Olyunina, T. V.</creator><creator>Kashekov, D. Yu</creator><general>Pleiades Publishing</general><general>Springer Nature B.V</general><scope>AAYXX</scope><scope>CITATION</scope><scope>8BQ</scope><scope>8FD</scope><scope>JG9</scope></search><sort><creationdate>20190901</creationdate><title>Waste Slime of the V2O5 Production according to the Lime–Sulfuric Acid Technology as a Technical Raw Material for Vanadium Recovery</title><author>Sadykhov, G. B. ; Goncharov, K. V. ; Olyunina, T. V. ; Kashekov, D. Yu</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c353t-79b5b9f8971e3d59d1e8d9abaeae78d023f2f3c522075d7f6828e47a028c7fc3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2019</creationdate><topic>Brookite</topic><topic>Chemistry and Materials Science</topic><topic>Cristobalite</topic><topic>Gypsum</topic><topic>Hematite</topic><topic>Lime</topic><topic>Materials recovery</topic><topic>Materials Science</topic><topic>Metallic Materials</topic><topic>Oxidation</topic><topic>Phase composition</topic><topic>Reclamation</topic><topic>Roasting</topic><topic>Silicates</topic><topic>Slag</topic><topic>Slime</topic><topic>Steel converters</topic><topic>Sulfur trioxide</topic><topic>Sulfuric acid</topic><topic>Sulfuric acid leaching</topic><topic>Vanadium pentoxide</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Sadykhov, G. B.</creatorcontrib><creatorcontrib>Goncharov, K. V.</creatorcontrib><creatorcontrib>Olyunina, T. V.</creatorcontrib><creatorcontrib>Kashekov, D. Yu</creatorcontrib><collection>CrossRef</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><jtitle>Russian metallurgy Metally</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Sadykhov, G. B.</au><au>Goncharov, K. V.</au><au>Olyunina, T. V.</au><au>Kashekov, D. Yu</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Waste Slime of the V2O5 Production according to the Lime–Sulfuric Acid Technology as a Technical Raw Material for Vanadium Recovery</atitle><jtitle>Russian metallurgy Metally</jtitle><stitle>Russ. Metall</stitle><date>2019-09-01</date><risdate>2019</risdate><volume>2019</volume><issue>9</issue><spage>873</spage><epage>882</epage><pages>873-882</pages><issn>0036-0295</issn><eissn>1555-6255</eissn><eissn>1531-8648</eissn><abstract>Representative samples of the waste slime of the vanadium pentoxide V
2
O
5
production from converter slags according to the lime–sulfuric acid technology are studied to develop its effective reclamation with vanadium recovery. The phase composition of the slime consists of gypsum, hematite, quartz, cristobalite, pseudo-brookite, complex ferrite, and various calcium-containing silicates. The residual vanadium content in the waste slime that is based on V
2
O
5
is 2–7%, the major part of which is sealed (insoluble) vanadium and the minor part is acid-soluble vanadium. A high vanadium content in the slime is found to be related to the disadvantages of oxidizing roasting of a vanadium slag with a lime addition in a rotary kiln and sulfuric acid leaching of a cinder under industrial conditions. To study the vanadium recovery from the slime, we analyzed direct sulfuric acid leaching of the slime and its leaching after preliminary oxidizing roasting. The optimum parameters of oxidizing roasting and sulfuric acid leaching are determined. Oxidizing roasting of the slime in the temperature range 925–1050°C is shown to substantially increase the vanadium recovery during subsequent leaching of the roasting product by weak sulfuric acid solutions. To exclude the formation of aggressive compounds SO
2
and SO
3
in roasting, it is necessary to separate a fine gypsum-containing fraction from the slime before oxidizing roasting in order to perform acid leaching.</abstract><cop>Moscow</cop><pub>Pleiades Publishing</pub><doi>10.1134/S0036029519090088</doi><tpages>10</tpages></addata></record> |
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| subjects | Brookite Chemistry and Materials Science Cristobalite Gypsum Hematite Lime Materials recovery Materials Science Metallic Materials Oxidation Phase composition Reclamation Roasting Silicates Slag Slime Steel converters Sulfur trioxide Sulfuric acid Sulfuric acid leaching Vanadium pentoxide |
| title | Waste Slime of the V2O5 Production according to the Lime–Sulfuric Acid Technology as a Technical Raw Material for Vanadium Recovery |
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