不同矿浆温度下滑石表面甲基纤维素脱附行为研究

欧阳燎原; 陈渊淦; 汪惠惠; 冯博

doi:10.3969/j.issn.1000-6532.2022.02.012

不同矿浆温度下滑石表面甲基纤维素脱附行为研究

稀有稀土资源开发与利用省部共建教育部协同创新中心，江西理工大学资源与环境工程学院，江西理工大学江西省矿业工程重点实验室，江西　赣州　341000

基金项目: 国家自然科学基金（52174248）；江西省自然科学基金（20202ACBL214010）；江西省双千计划（jxsq2019201115）；江西省青年井冈学者奖励计划资助项目

详细信息

作者简介: 欧阳燎原（2000-），男，本科生

通讯作者: 冯博(1986-)，男，教授，博士生导师，主要从事矿物加工理论与工艺等方面的研究，E-mail：fengbo319@163.com

中图分类号: TD989

收稿日期: 2020-05-09

修回日期: 2020-05-20

刊出日期: 2022-04-25

The Desorption Behavior of Methylcellulose from Talc at Different Temperature of Pulp

Development and Utilization of Rare and Rare Earth Resources Collaborative Innovation Center of the Ministry of Education Jointly Established by the Ministry of Education, Jiangxi Provincial Key Laboratory of Mining Engineering, Jiangxi University of Science and Technology, School of Resource and Environmental Engineering, Jiangxi University of Science and Technology, Ganzhou, Jiangxi, China

More Information

Corresponding author: Feng Bo, fengbo319@163.com

Received Date: 09 May 2020

Revised Date: 20 May 2020

Publish Date: 25 April 2022

摘要

摘要:
通过浮选试验及脱附试验，研究不同矿浆温度下滑石表面上甲基纤维素脱附行为及其对滑石浮选的影响。结果表明，滑石天然可浮性较好，甲基纤维素对滑石具有一定的抑制作用，其抑制效果随矿浆温度升高而增强，水洗能够减弱甲基纤维素对滑石的抑制作用，使滑石浮选回收率升高，且低温水洗时滑石的浮选回收率增加更多。使用甲基纤维素能够实现黄铜矿和滑石的浮选分离。
- 滑石 /
- 抑制剂 /
- 甲基纤维素 /
- 脱附 /
- 矿浆温度
Abstract:
Through flotation tests and desorption tests, the desorption behavior of methylcellulose from the surface of talc at different temperatures and its influence on the flotation of talc were studied. The results show that the natural floatability of talc is good. The depressive effect on methylcellulose on talc is enhanced with the increase of pulp temperature. Washing can weaken the depressive effect on methylcellulose on talc, increase the flotation recovery of talc, and increase the flotation recovery of talc more at low temperature. The flotation separation of chalcopyrite and talc can be realized by using methylcellulose.
- Talc /
- Depressant /
- Methylcellulose /
- Desorption /
- Pulptemperature

HTML全文

图 1 滑石浮选回收率与pH值关系

Figure 1.

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图 2 不同温度下甲基纤维素对滑石浮选的影响 (MIBC=1×10^-4mol/L, pH=7)

Figure 2.

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图 3 不同温度下甲基纤维素用量对滑石浮选的影响 (MIBC=1×10^-4 mol/L, pH=7)

Figure 3.

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图 4 不同温度下水洗对甲基纤维素抑制效果的影响 (MIBC=1×10^-4mol/L, pH=7)

Figure 4.

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图 5 不同条件下甲基纤维素的解吸行为

Figure 5.

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表 1 甲基纤维素对黄铜矿-滑石混合矿浮选分离的影响

Table 1. Effect on methylcellulose on flotation separation of chalcopyrite-talc mixed ore

产品名称产率/% Cu品位/% Cu回收率/%

原矿 47.10 24.08 74.68
尾矿 52.90 7.27 25.32
原矿 100.00 15.19 100.00

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