Hydrometallurgical recovery of zinc from hot dip galvanizing ash
In this laboratory study a process has been developed for zinc recovery from chloride-containing zinc ash formed during hot dip galvanizing. The ash is leached with diluted H 2SO 4 and the main impurities, such as iron, copper, cadmium, and organic compounds are removed from leach liquors by pH-cont...
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| Veröffentlicht in: | Hydrometallurgy 2005-04, Vol.77 (1), p.29-33 |
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| container_title | Hydrometallurgy |
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| creator | DVORAK, P JANDOVA, J |
| description | In this laboratory study a process has been developed for zinc recovery from chloride-containing zinc ash formed during hot dip galvanizing. The ash is leached with diluted H
2SO
4 and the main impurities, such as iron, copper, cadmium, and organic compounds are removed from leach liquors by pH-controlled precipitation using ZnO as a neutralizing agent. The process is finished by active carbon and cementation precipitation. Chloride-free zinc hydroxy-carbonate is precipitated from purified leach solutions. Metallic zinc is obtained by the electrowinning process performed with zinc sulphate solution originating from dissolution of zinc hydroxy-carbonate prepared in diluted H
2SO
4. |
| doi_str_mv | 10.1016/j.hydromet.2004.10.007 |
| format | Article |
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2SO
4 and the main impurities, such as iron, copper, cadmium, and organic compounds are removed from leach liquors by pH-controlled precipitation using ZnO as a neutralizing agent. The process is finished by active carbon and cementation precipitation. Chloride-free zinc hydroxy-carbonate is precipitated from purified leach solutions. Metallic zinc is obtained by the electrowinning process performed with zinc sulphate solution originating from dissolution of zinc hydroxy-carbonate prepared in diluted H
2SO
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2SO
4 and the main impurities, such as iron, copper, cadmium, and organic compounds are removed from leach liquors by pH-controlled precipitation using ZnO as a neutralizing agent. The process is finished by active carbon and cementation precipitation. Chloride-free zinc hydroxy-carbonate is precipitated from purified leach solutions. Metallic zinc is obtained by the electrowinning process performed with zinc sulphate solution originating from dissolution of zinc hydroxy-carbonate prepared in diluted H
2SO
4.</description><subject>Applied sciences</subject><subject>Exact sciences and technology</subject><subject>H 2SO 4 leaching</subject><subject>Metals. Metallurgy</subject><subject>Precipitation of chloride-free zinc carbonate</subject><subject>Production of metals</subject><subject>Purification of sulphate leach liquors</subject><subject>Zinc ash</subject><subject>Zinc electrowinning</subject><issn>0304-386X</issn><issn>1879-1158</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2005</creationdate><recordtype>article</recordtype><recordid>eNqFkMFKAzEQhoMoWKuvIHvR267JZpNsbhVRKxS8KHgL2WS2TdluarIt1Kc3pRWPvWRg5vszw4fQLcEFwYQ_LIvFzga_gqEoMa5Ss8BYnKERqYXMCWH1ORphiquc1vzrEl3FuMQYcyrICE2mx6zuuk2YO6O7LIDxWwi7zLfZj-tN1iYiW_ghs26dzXW31b1Lg3mm4-IaXbS6i3BzrGP0-fL88TTNZ--vb0-Ps1xXpRhyA4SzWhIu24rIdBNpCU8P09QaCyCYaCRpMJSGSmFLqytZsqaxElgLgOkY3R_-XQf_vYE4qJWLBrpO9-A3UZWSlqyU7DRYMyJqLhLID6AJPsYArVoHt9JhpwhWe7Nqqf7Mqr3ZfT-ZTcG74wYdk6826N64-J_mnFJS08RNDhwkL1sHQUXjoDdgXVI8KOvdqVW_q2GS6w</recordid><startdate>20050401</startdate><enddate>20050401</enddate><creator>DVORAK, P</creator><creator>JANDOVA, J</creator><general>Elsevier B.V</general><general>Elsevier</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>8BQ</scope><scope>8FD</scope><scope>JG9</scope><scope>7TB</scope><scope>FR3</scope></search><sort><creationdate>20050401</creationdate><title>Hydrometallurgical recovery of zinc from hot dip galvanizing ash</title><author>DVORAK, P ; JANDOVA, J</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-a427t-ce16589169f4191581f1681f5a3dcdee757b91b0e2c397d2da4925bbd9e5fee03</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2005</creationdate><topic>Applied sciences</topic><topic>Exact sciences and technology</topic><topic>H 2SO 4 leaching</topic><topic>Metals. Metallurgy</topic><topic>Precipitation of chloride-free zinc carbonate</topic><topic>Production of metals</topic><topic>Purification of sulphate leach liquors</topic><topic>Zinc ash</topic><topic>Zinc electrowinning</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>DVORAK, P</creatorcontrib><creatorcontrib>JANDOVA, J</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><collection>Mechanical & Transportation Engineering Abstracts</collection><collection>Engineering Research Database</collection><jtitle>Hydrometallurgy</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>DVORAK, P</au><au>JANDOVA, J</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Hydrometallurgical recovery of zinc from hot dip galvanizing ash</atitle><jtitle>Hydrometallurgy</jtitle><date>2005-04-01</date><risdate>2005</risdate><volume>77</volume><issue>1</issue><spage>29</spage><epage>33</epage><pages>29-33</pages><issn>0304-386X</issn><eissn>1879-1158</eissn><coden>HYDRDA</coden><abstract>In this laboratory study a process has been developed for zinc recovery from chloride-containing zinc ash formed during hot dip galvanizing. The ash is leached with diluted H
2SO
4 and the main impurities, such as iron, copper, cadmium, and organic compounds are removed from leach liquors by pH-controlled precipitation using ZnO as a neutralizing agent. The process is finished by active carbon and cementation precipitation. Chloride-free zinc hydroxy-carbonate is precipitated from purified leach solutions. Metallic zinc is obtained by the electrowinning process performed with zinc sulphate solution originating from dissolution of zinc hydroxy-carbonate prepared in diluted H
2SO
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| fulltext | fulltext |
| identifier | ISSN: 0304-386X |
| ispartof | Hydrometallurgy, 2005-04, Vol.77 (1), p.29-33 |
| issn | 0304-386X 1879-1158 |
| language | eng |
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| source | Access via ScienceDirect (Elsevier) |
| subjects | Applied sciences Exact sciences and technology H 2SO 4 leaching Metals. Metallurgy Precipitation of chloride-free zinc carbonate Production of metals Purification of sulphate leach liquors Zinc ash Zinc electrowinning |
| title | Hydrometallurgical recovery of zinc from hot dip galvanizing ash |
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