| 甘肃某难选含碳酸盐矿物白钨矿选矿工艺改进研究 |
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| 引用本文： | 罗良飞,胡宜斌,刘铭,程征,罗俊凯. 甘肃某难选含碳酸盐矿物白钨矿选矿工艺改进研究[J]. 矿产保护与利用, 2019, 39(4): 121. DOI: 10.13779/j.cnki.issn1001-0076.2019.04.018 |
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| 作者姓名： | 罗良飞 胡宜斌 刘铭 程征 罗俊凯 |
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| 作者单位： | 长沙矿冶研究院有限责任公司，湖南 长沙 410012 |
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| 摘 要： | 甘肃某白钨矿矿石WO3品位0.68%，矿石风化严重，碳酸盐矿物含量较高，褐铁矿和绿泥石等易泥化矿物较多，属于典型的难选矿石。原有生产流程处理该矿石时，存在生产不顺行和精矿WO3回收率严重偏低等问题。在工艺矿物学研究的基础上，进行了条件试验和脱泥关键技术开发。通过多流程对比试验，开发出了适合该矿的选矿工艺流程，采用原矿—磨矿分级—旋流器脱泥—沉砂浮硫—浮钨—加温解吸—精选流程，取得了产率2.75%、S品位10.02%、回收率81%的硫产品和产率0.81%、WO3品位68.80%、WO3回收率81.87%的钨精矿。该工艺可以解决生产操作顺行，并可提高生产指标。
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| 关 键 词： | 白钨矿 浮选 脱泥 旋流器 加温精选 |
| 收稿时间： | 2019-04-11 |
The Improvement Research on Dressing Process of Refractory Scheelite Ore Containing Carbonate Minerals in Gansu |
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| Affiliation: | Changsha Research Institute of Mining & Metallurgy Co. Ltd., Changsha 410012, China |
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| Abstract: | A scheelite ore with grade of WO3 0.68% in Ganshu, is typical refractory ore which is severely weathered ore containing limonite and carbonate. When the original production process was used to treat the ore, there were problems such as poor production and low recovery indicators. Based on the research of process mineralogy, conditional tests and key technologies for desliming were developed. through the multi-flow comparison tests, a beneficiation process suitable for the mine was developed. Adopting the ore-grinding classification-cyclone deslimimg -underflow flotation of sulfur-flotation of scheelite and heating- cleaning process, The sulphur product with syield of 2.75%, S grade 10.02% and S recovery of 81.00% and scheelite concentrate with yield of 0.81%, WO3 grade 68.80% and recovery of 81.87% were obtained. This technology can solve the operation along the line and can improve the production index. |
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