云南卡房多型磁黄铁矿的矿物学特征及选矿实验

赵荣; 宋宝旭; 普久然; 吴杰; 陈明波; 孙晓妍

doi:10.12476/kczhly.202208050497

云南卡房多型磁黄铁矿的矿物学特征及选矿实验

1.
云南锡业股份有限公司卡房分公司，云南　个旧　661000

2.
辽宁科技大学矿业工程学院，辽宁　鞍山　114001

详细信息

作者简介: 赵荣（1983-），男，工程师，主要从事选矿理论再生产实践中的应用

通讯作者: 宋宝旭（1987-），男，副教授，研究方向为矿物加工工程。

中图分类号: TD952

收稿日期: 2022-08-25

刊出日期: 2025-06-25

Mineralogical Characteristics and Beneficiation Experimental Study on Polytype Pyrrhotite in Kafang Deposit, Yunnan Province

1.
Kafang Branch of Yunnan Tin Company Group Limited, Gejiu, Yunnan 661000, China

2.
School on Mining Engineering, University of Science and Technology Liaoning, Anshan, Liaoning 114001, China

More Information

Corresponding author: SONG Baoxu, songbaoxu@ustl.edu.cn

Received Date: 25 August 2022

Publish Date: 25 June 2025

摘要

摘要:
随着云南卡房铜钨矿磁黄铁矿含量的不断增加，如何减少磁黄铁矿对铜、钨选别过程的影响成为难题。查明了卡房矿床中磁黄铁矿的主要类型，既有易浮的单斜晶系磁黄铁矿，又有因铁含量高而具有磁性的六方晶系磁黄铁矿。选矿小型实验采用浮选和磁选的联合工艺流程，获得了硫品位大于32%、以单斜磁黄铁矿为主的硫精矿，脱除了产率23%左右、以六方磁黄铁矿和钙铁辉石为主的磁性脉石矿物，减少了磁黄铁矿对铜、钨浮选过程的干扰，相关方法可为国内外同类矿山企业提供借鉴。
- 工艺矿物学 /
- 磁黄铁矿 /
- 浮选 /
- 磁选
Abstract:
With the increase of pyrrhotite content in Kafang copper-tungsten deposit, how to reduce the effects of pyrrhotite on the beneficiation process of copper and tungsten has become a difficult problem. The main types of pyrrhotite in Kafang deposit are identified, including monoclinic pyrrhotite, which is easy to magnetize and float, and hexagonal pyrrhotite, which has great magnetic changes due to the fluctuation of iron content. Beneficiation experiments show that using combined technological process of flotation and magnetic separation, a sulfur concentrate assaying over 32% of sulfur content, mainly recovering monoclinic pyrrhotite pyrrhotite, was obtained, and magnetic gangue minerals with a yield of about 23%, mainly included by hexagonal pyrrhotite and hedenbergite, were discarded to tailings. The interference of pyrrhotite to the flotation process of copper and tungsten is reduced, and the related methods can provide references for similar mining enterprises at home and abroad.
- process mineralogy /
- pyrrhotite /
- flotation /
- magnetic separation

HTML全文

图 1 不同磨矿细度下主要矿物的单体解离度测定结果

Figure 1.

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图 2 磁黄铁矿的嵌布特征

Figure 2.

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图 3 铜浮选调整剂（左）和捕收剂（右）种类及用量实验结果

Figure 3.

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图 4 硫浮选活化剂种类及用量实验结果

Figure 4.

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图 5 硫浮选捕收剂戊基黄药用量实验结果

Figure 5.

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图 6 硫浮选时间实验结果

Figure 6.

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图 7 原矿磁选实验流程

Figure 7.

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图 8 硫化矿浮选尾矿磁选实验流程

Figure 8.

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图 9 全工艺流程

Figure 9.

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图 10 浮选精矿（左）和磁性脉石矿物中（右）磁黄铁矿的XRD

Figure 10.

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表 1 主要元素分析结果/%

Table 1. Main element analysis results

Cu	WO₃	S	SiO₂	CaCO₃	MgO	Al₂O₃	Fe
3.03	0.20	9.48	26.51	5.67	1.57	5.79	17.50

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表 2 铜钨物相分析结果

Table 2. Results of phase analysis of copper and tungsten

铜物相						钨物相
名称	自由氧化铜	结合氧化铜	次生硫化铜	原生硫化铜	总铜	钨华	白钨矿	黑钨矿	总钨
含量/%	0.01	0.02	0.05	2.85	3.03	0.007	0.167	0.022	0.20
占有率/%	0.34	0.67	1.67	97.32	100.00	3.58	85.20	11.22	100.00

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表 3 主要矿物组成测定结果

Table 3. Determination results of main mineral composition

矿物	含量/%	矿物	含量/%	矿物	含量/%
黄铜矿	9.410	钙铁辉石	5.425	方柱石	0.905
白钨矿	0.217	钙铁榴石	0.365	方解石	6.834
黄铁矿	0.096	钙铝榴石	0.302	褐铁矿	0.100
磁黄铁矿	18.447	绿帘石	0.132	赤铁矿	0.038
石英	30.169	黑云母	6.390	褐帘石	0.114
长石	14.513	绿泥石	1.793	菱铁矿	0.266

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表 4 主要矿物的嵌布粒度特性

Table 4. Disseminated grain size characteristics of main minerals

矿物名称	微粒 <0.01 mm	细粒 0.01～0.08 mm	中粒 0.08～0.32 mm	粗粒 >0.32 mm
黄铜矿	1.34	47.83	44.05	6.78
白钨矿	0.15	31.52	57.59	10.75
磁黄铁矿	0.03	17.49	56.67	25.81

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表 7 全工艺流程综合实验指标

Table 7. Comprehensive test indexes of the whole process

产品名称	产率/%	品位/%			回收率/%
产品名称	产率/%	Cu	S	WO₃	Cu	S	WO₃
铜精矿	12.30	23.92	31.05	0.04	97.10	40.29	2.28
硫精矿	15.18	0.40	33.96	0.03	2.00	54.38	1.97
磁性脉石矿物	23.68	0.03	2.01	0.15	0.24	5.02	17.81
硫化矿尾矿（给入钨浮选作业）	48.84	0.04	0.06	0.30	0.66	0.31	77.94
原矿	100.00	3.03	9.48	0.20	100.00	100.00	100.00

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表 5 原矿磁选实验结果

Table 5. Magnetic separation test results of the raw ore

产品名称	产率/%	品位/%			回收率/%
产品名称	产率/%	Cu	S	WO₃	Cu	S	WO₃
磁选产品1	3.52	1.13	33.27	0.04	1.34	11.79	0.74
磁选产品2	1.71	3.12	28.91	0.05	1.80	4.97	0.45
磁选产品3	16.16	2.60	23.04	0.21	14.15	37.48	17.33
磁选产品4	15.38	5.45	15.38	0.17	28.23	23.81	13.35
磁选产品5	6.34	10.35	12.75	0.22	22.10	8.14	7.12
非磁产品	56.89	1.69	2.41	0.21	32.38	13.80	61.01
给矿	100.00	2.97	9.93	0.20	100.00	100.00	100.00

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表 6 硫化矿浮选尾矿磁选实验结果

Table 6. Magnetic separation test results of sulfide ore flotation tailings

产品名称	作业产率/%	品位/%		作业回收率/%
产品名称	作业产率/%	WO₃	S	WO₃	S
磁选产品1	9.22	0.03	1.25	1.11	16.46
磁选产品2	10.03	0.20	2.01	8.02	28.80
磁选产品3	8.31	0.15	2.80	4.99	33.24
磁选产品4	5.09	0.22	2.16	4.48	15.72
非磁产品	67.35	0.30	0.06	81.40	5.77
给矿	100.00	0.25	0.70	100.00	100.00

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