| 石膏渣热分解过程分析 |
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| 引用本文： | 林巧,陶超凡,王冬冬. 石膏渣热分解过程分析[J]. 铜业工程, 2021, 0(5): 63-65 |
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| 作者姓名： | 林巧 陶超凡 王冬冬 |
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| 作者单位： | 中国瑞林工程技术股份有限公司，江西 南昌 330038;江西铜业集团有限公司，江西 南昌 330096;黑龙江紫金铜业有限公司，黑龙江 齐齐哈尔 161000 |
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| 摘 要： | 石膏渣作为铜冶炼系统重要的副产物,属危险废物,处置成本高,堆存压力大。石膏渣高温煅烧分解得到的氧化钙在工业上有远大的应用前景,可作为溶剂返加侧吹熔炼炉,一方面改善渣型,另一方面可节约氧化钙购买成本。采用还原气氛下的高温煅烧法,探讨了分解温度、无烟煤加入量及分解时间对石膏渣热分解效果的影响。实验结果表明,石膏渣在还原气氛下,温度1300℃,恒温60min,基本完全分解。
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| 关 键 词： | 石膏渣；危险废物；还原气氛；高温煅烧法；热分解；氧化钙 |
| 收稿时间： | 2021-09-11 |
Analysis of Thermal Decomposition process of Gypsum Slag |
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| LIN Qiao,TAO Chao-fan,WANG Dong-dong. Analysis of Thermal Decomposition process of Gypsum Slag[J]. Copper Engineering, 2021, 0(5): 63-65 |
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| Authors: | LIN Qiao TAO Chao-fan WANG Dong-dong |
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| Affiliation: | China Nerin Engineering Co., Ltd., Nanchang 330038, Jiangxi, China;Jiangxi Copper Corporation Limited, Nanchang 330096,Jiangxi, China; Heilongjiang Zijin Copper Co., Ltd. ,Qiqihaer161000, Heilongjiang, China |
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| Abstract: | The gold sample with a purity of 99.99% is used as the matrix, and 12 impurity elements are added as required.Accurately weigh 11 kinds of high-purity standard materials (Ag, Pb, Cu, Fe, Sb, Bi, Pd, Sn, Ni, Cr, Mn) and magnesium alloys of corresponding quality, and adjust the frequency of the high-frequency furnace to change the temperature. According to the characteristics of high melting point, low melting point, easy oxidation and easy volatility, 3 master marks are casted separately. Then, by diluting the mother standard, a monitoring sample that meets the impurity element content required by the instrument and method is finally made. |
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