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投稿时间：2011-09-02 修订日期：2011-09-02 录用日期：2011-09-05 网络发布日期：2011-12-30
投稿时间：2011-09-02 修订日期：2011-09-02 录用日期：2011-09-05 网络发布日期：2011-12-30
中文摘要: 研究了以含锌废催化剂为原料，通过碱浸、净化、沉淀制备ZnS的新工艺。重点考察浸出温度、NaOH浓度、液固比（浸出剂质量/原料质量）和浸出时间等工艺参数对Zn浸出率的影响，最佳工艺条件是：NaOH浓度5 mol/L、液固比25:1、温度80 ℃、浸出时间2 h，在该条件下锌浸出率可达90%；浸出液经过锌粉1次净化后采用水热法可以获得纯度较高、结晶性好的ZnS，沉锌后滤液可以作为浸出剂循环利用。
Abstract:A new process for preparing zinc sulfide from waste catalyst containing zinc by alkaline-leaching, purification, precipitation process was studied. The influences of extraction temperature, NaOH concentration, liquid-solid ratio (mass ratio) and extraction time on zinc leaching rate were emphatically investigated. The recovery of Zn was up to 90% under the optimum conditions including concentration of NaOH of 5 mol/L, liquid-solid ratio of 25:1 and leaching at 80 ℃ for 2 hours. Zinc sulfide with high purity and better crystallinity was synthesized successfully by hydrothermal method after leaching solution’s one-stage purification with zinc dust, and the filtrate can be recycled to be used as leaching agent.
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基金项目:“973”国家重点基础研究发展计划资助项目(2007CB613601)；湖南省科技计划项目资助（2011FJ6005）
| Author Name | Affiliation |
| HU Hui-ping, XIE Li-fang, CHEN Qi-yuan, WANG Shu-bin | School of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China |
引用文本：
胡慧萍 谢丽芳 陈启元 王树宾.碱法浸出含锌废催化剂制备硫化锌[J].有色金属（冶炼部分）,2012(1):42-45.
HU Hui-ping, XIE Li-fang, CHEN Qi-yuan, WANG Shu-bin.Preparation of Zinc Sulfide from Waste Zinc-bearing Catalyst by Alkaline Leaching[J].Nonferrous Metals (Extractive Metallurgy),2012(1):42-45.
胡慧萍 谢丽芳 陈启元 王树宾.碱法浸出含锌废催化剂制备硫化锌[J].有色金属（冶炼部分）,2012(1):42-45.
HU Hui-ping, XIE Li-fang, CHEN Qi-yuan, WANG Shu-bin.Preparation of Zinc Sulfide from Waste Zinc-bearing Catalyst by Alkaline Leaching[J].Nonferrous Metals (Extractive Metallurgy),2012(1):42-45.
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