江西某钽铌尾矿中锂云母的浮选实验研究

李晓波; 许浩; 王航; 徐宝金; 徐莎莎; 毛玉辉

doi:10.3969/j.issn.1000-6532.2023.05.007

江西某钽铌尾矿中锂云母的浮选实验研究

doi: 10.3969/j.issn.1000-6532.2023.05.007

李晓波^{1, 2,},
许浩^{1, 2},
王航^{1, 2},
徐宝金^{1, 3},
徐莎莎³,
毛玉辉⁴

1.
江西理工大学资源与环境工程学院，江西　赣州　341099
2.
江西省矿业工程重点实验室，江西　赣州　341099
3.
马鞍山钢铁集团罗河矿业有限责任公司，安徽　马鞍山　231500
4.
宜春钽铌矿有限公司，江西　宜春　336024

基金项目: 江西省教育厅科学技术研究项目（GJJ190440）；创新创业训练计划项目（DC2022-020）；校创新创业训练计划项目（DC2018-004）

详细信息

作者简介:
李晓波（1979-），男，博士，副教授，主要从事矿物分选理论与工艺

中图分类号: TD954；TD913
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出版历程
- 收稿日期: 2021-11-04

Flotation Research on Recovery of Lithionite from Ta-Nb Tailing in Jiangxi

Li Xiaobo^{1, 2
,},
Xu Hao^{1, 2},
Wang Hang^{1, 2},
Xu Baojin^{1, 3},
Xu Shasha³,
Mao Yuhui⁴

1.
Faculty of Resource and Environmental Engineering, Jiangxi University of Science and Technology, Ganzhou, Jiangxi, China
2.
Jiangxi Province Key Laboratory of Mining Engineering, Ganzhou, Jiangxi, China
3.
Luohe Mining Company, LLC of Maanshan Iron and Steel Group, Maanshan, Anhui, China
4.
Yichun Tantalum & Niobium Mine Co., Ltd., Yichun, Jiangxi, China

摘要

摘要: 这是一篇矿物加工工程领域的论文。江西某钽铌尾矿中主要矿物为长石、石英、锂云母和黄玉，含少量的锂辉石、绢云母等，其中主要可利用矿物为锂云母。长期以来，该尾矿缺乏综合利用回收工艺。本次实验研究针对该尾矿中主要的可利用矿物锂云母进行浮选实验研究，确定合理的选矿回收工艺，为该尾矿的综合利用提供技术依据。针对该矿石的工艺矿物学性质，确定采用浮选工艺对锂云母进行回收。通过一系列浮选条件实验，采用HZ-00和十二胺作为组合捕收剂，Na₂CO₃为pH值调整剂，以水玻璃为抑制剂的条件下，采用“一粗一扫一精”的浮选工艺流程，浮选闭路实验可获得锂云母精矿Li₂O品位为3.02%、回收率为72.41%的实验指标，实验结果较为理想。
- 矿物加工工程 /
- 钽铌尾矿 /
- 锂云母 /
- 浮选药剂 /
- 浮选实验
Abstract: This is an essay in the field of mineral processing engineering. The main minerals in tantalum niobium tailings in Jiangxi Province are feldspar, quartz, lithionite and topaz, containing a small amount of spodumene and sericite, among which the main available minerals are lithionite. For a long time, the tailings lack a comprehensive utilization and recycling process. This test study studies the flotation test of the main available mineral lithium mica in the tailings, determines the reasonable beneficiation recovery process, and provides a technical basis for the comprehensive utilization of the tailings. According to the process mineralogy properties of the ore, the lithium mica was recovered. Through a series of flotation condition tests, HZ-00 and dodecylamine are used as the combination catcher, Na₂CO₃ is pH value adjustment agent, water glass as the inhibitor, the flotation process of "one coarse, one sweep and one fine", the flotation closed circuit test can obtain Li₂O grade of 4.3.02%, the recovery rate of 72.41%, and the test results are relatively ideal.
- Mineral processing engineering /
- Ta-Nb tailing /
- Lithionite /
- Flotation reagent /
- Flotation test

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图 1 探索实验流程

Figure 1. Flow sheet of exploratory tests

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图 2 捕收剂用量与锂云母精矿品位及其回收率的关系

Figure 2. Relationship between trap dosage and lithionite concentrate grade and its recovery

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图 3 碳酸钠用量对锂云母选别指标的影响实验结果

Figure 3. Effect of sodium carbonate dosage on flotation indexes of lithionite

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图 4 水玻璃用量对锂云母选别指标的影响实验结果

Figure 4. Effect of water glass dosage on flotation indexes of lithionite

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图 5 抑制剂用量与锂云母精矿品位及其回收率的关系

Figure 5. Effect of water glass dosage on flotation indexes of lithionite

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图 6 锂云母浮选闭路实验流程

Figure 6. Flowsheet of lithionite flotation closed-circuit test

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表 1 原矿多元素化学分析结果/%

Table 1. Chemical analysis results of raw ore

Li₂O	K₂O	Na₂O	CaO	MgO	SiO₂	Al₂O₃	Fe₂O₃	TiO₂	MnO	P₂O₅	烧失量	Ta₂O₅	Nb₂O₅
0.53	3.50	3.40	0.37	0.085	69.86	15.94	0.85	0.018	0.16	0.78	3.22	0.0039	0.0062

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表 2 锂云母矿物单体解离度

Table 2. Degree of mineral liberation of lithionite

粒级/mm	产率/%	单体/%	连生体/%
粒级/mm	产率/%	单体/%	1/4	2/4	3/4
+0.45	50.79	75.68	1.35	4.32	18.65
-0.45+0.15	24.08	92.52	0.15	0.62	6.71
-0.15+0.076	12.57	100.00	0	0	0
-0.076+0.045	5.23	100.00	0	0	0
-0.045	7.33	100.00	0	0	0
合计	100.00	—	—	—	—

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表 3 原矿样品粒度分布

Table 3. Grain size distribution of raw ore samples

粒级/mm	产率/%	累计产率/%	Li₂O品位/%	分布率/%
+0.25	13.71	13.71	1.39	27.08
-0.25+0.15	21.89	35.60	0.90	27.99
-0.15+0.096	20.36	55.96	0.69	19.96
-0.096+0.074	12.02	67.98	0.51	8.71
-0.074+0.045	26.73	94.71	0.36	13.67
-0.045+0.038	3.66	98.37	0.35	1.82
-0.038	1.63	100.00	0.33	0.76
原矿	100.00	—	0.70	100.00

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表 4 探索实验结果

Table 4. Results of exploratory tests

方案	产率/%	Li₂O品位/%	回收率/%
方案一	19.53	2.89	79.58
方案二	14.52	2.16	44.91
方案三	13.57	1.91	36.57

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表 5 开路实验结果

Table 5. Results of condition tests

产品名称	产率/%	Li₂O品位/%	回收率/%
锂云母精矿	10.35	3.10	67.04
精选中矿	3.98	0.99	5.63
扫选中矿	3.59	1.22	6.32
锂云母尾矿	82.08	0.18	21.01
给矿	100.00	0.70	100.00

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表 6 闭路实验结果

Table 6. Results of the closed circuit test

产品名称	产率/%	Li₂O品位/%	回收率/%
锂云母精矿	13.94		72.41
锂云母精矿	13.94	3.02	72.41
锂云母尾矿	86.06	0.14	27.59
给矿	100.00	0.71	100.00

下载: 导出CSV

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