PRECIPITATION OF SILICA IN ZINC REFINING PROCESS

机译：锌精炼过程中的二氧化硅沉淀

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The source of high-quality zinc ore is decreasing, and thus zinc hydrometallurgy is increasinglyrndependent on zinc ores that contain increased levels of impurities. One of the impurities is silica, whichrnleads to the production of zinc silicate (Zn_2SiO_4) in the roasting process. Silica is easily leached fromrnZn_2SiO_4 and saturates the solution. As a result, silica polymerizes and turns into a gel, which makes thernsolid-liquid separation of impurities from zinc solution difficult. The purpose of this study is to examinernthe effects of temperature, pH, and the presence of inorganic impurities and silica seed on the precipitationrnof silica.

机译：高质量锌矿石的来源正在减少，因此锌湿法冶金越来越依赖于杂质含量增加的锌矿石。杂质之一是二氧化硅，这导致在焙烧过程中生成硅酸锌（Zn_2SiO_4）。二氧化硅很容易从ZnZn_2SiO_4中浸出并浸透溶液。结果，二氧化硅聚合并变成凝胶，这使得难以从锌溶液中固液分离杂质。这项研究的目的是检验温度，pH值以及无机杂质和二氧化硅种子对沉淀二氧化硅的影响。

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《PbZn 2010》|2010年|p.553-563|共11页
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N. Sogabe; S. Ikenobu; F. Nishiyama; Y. Sakata; M. Kawahara;
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Kamioka Mining Smelting Company Limited 1-1 Shikama, Kamioka-cho, Hida City, Gifu 506-1196 Japan n_sogabe@kms.mitsui-kinzoku.co.jp;

Mitui Mining Smelting Company Limited 1-11-1 Osaki, Shinagawa-ku, Tokyo 141-8584 Japan;

Mitui Mining Smelting Company Limited 1-11-1 Osaki, Shinagawa-ku, Tokyo 141-8584 Japan;

Department of Materials Science and Engineering Faculty of Engineering, Kumamoto Univerisity 2-39-1 Kurokami Kumamoto 860-8555 JAPAN;

Department of Materials Science and Engineering Faculty of Engineering, Kumamoto Univerisity 2-39-1 Kurokami Kumamoto 860-8555 JAPAN;

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正文语种 eng
中图分类锌;铅;
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2. Simulation of iron oxide/silica precipitation in the paragoethite process for the removal of iron from acidic zinc leach solutions [J] . Laurence G. Dyer, William R. Richmond, Phillip D. Fawell Hydrometallurgy . 2012,第Null期

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3. Precipitation and characterization of zinc borates from hydrometallurgical processing of zinc ash [J] . S. Gostu, D. Mishra, K.K. Sahu, Materials Letters . 2014,第nova1期

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4. PRECIPITATION OF SILICA IN ZINC REFINING PROCESS [C] . N. Sogabe, S. Ikenobu, F. Nishiyama Lead-Zinc Decennial Symposium . 2010

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5. DOMESTIC PROCESSING OF MINE OUTPUT IN CANADA, WITH CASE STUDIES ON ZINC AND COPPER REFINING. [D] . WITTUR, GLEN ERIC. 1974

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7. Precipitation of silica from zinc process solution [O] . Tuomas Vielma, Ulla Lassi, Justin Salminen 2017

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PRECIPITATION OF SILICA IN ZINC REFINING PROCESS

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