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| RESEARCH OF HIGH-GRADE ZINC OXIDE PRODUCED FROM ZINC OXIDE DUST OF THE SMOKED STOVES |
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Received:March 15, 2006
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| DOI： |
| KeyWord:zinc oxide; ammonial leaching ; ammonium sulfate; dust |
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| Beijing General Research Institute of Mining and Metallurgy, Beijing 100044, China |
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| Abstract: |
| The paper introduces the ammonia process of producing high-grade zinc oxide from impurities zinc oxide dust which produced by the smoked stoves in a large internal smelter. The processes used ammonium sulfate- ammonia mixed system, zinc precipitation from leaching liquid purified by steamed the ammonia and salt precipitation method, which produced zinc hydroxide . Then the zinc hydroxide is calcined to high-grade zinc oxide that the content of zinc oxide is 99.7 % and the processes is simple. |
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