烷基羟丙基胺作用下石英和赤铁矿的浮选行为

doi:10.12068/j.issn.1005-3026.2017.12.022

东北大学学报:自然科学版 ›› 2017, Vol. 38 ›› Issue (12): 1775-1779.DOI: 10.12068/j.issn.1005-3026.2017.12.022

烷基羟丙基胺作用下石英和赤铁矿的浮选行为

刘文宝¹，刘文刚^1,2，王鑫阳¹，张尧³

(1. 东北大学资源与土木工程学院，辽宁沈阳110819; 2. 北京矿冶研究总院矿物加工科学与技术国家重点实验室，北京100160; 3. 北方重工集团有限公司，辽宁沈阳110819)

收稿日期:2016-06-27 修回日期:2016-06-27 出版日期:2017-12-15 发布日期:2018-01-02
通讯作者: 刘文宝
作者简介:刘文宝(1988-)，男，山东临沂人，东北大学博士研究生；刘文刚(1981-)，男，山东潍坊人，东北大学教授，博士生导师.
基金资助:
矿物加工科学与技术国家重点实验室开放研究基金资助项目(BGRIMM-KJSKL-2016-01)；中央高校基本科研业务费专项资金资助项目(N160105001，N160106003)；国家自然科学基金资助项目(51374051).

Flotation Behavior of Quartz and Hematite in the Presence of Alkyl Hydroxypropyl Amine

LIU Wen-bao¹， LIU Wen-gang^1,2， WANG Xin-yang¹， ZHANG Yao³

1. School of Resources & Civil Engineering， Northeastern University， Shenyang 110819， China; 2. State Key Laboratory of Mineral Processing， Beijing General Research Institute of Mining & Metallurgy， Beijing 100160， China; 3. Northern Heavy Industries Group Co.， Ltd.， Shenyang 110819， China.

Received:2016-06-27 Revised:2016-06-27 Online:2017-12-15 Published:2018-01-02
Contact: LIU Wen-gang
About author:-
Supported by:
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摘要/Abstract

摘要： 通过浮选试验研究了新型捕收剂烷基羟丙基胺(NDIA)作用下石英和赤铁矿的浮选行为，并结合量子化学计算和zeta电位分析，考察了该捕收剂在矿物表面的吸附机理.单矿物浮选试验结果表明:当捕收剂用量为33.33mg/L，pH值为4.50~8.00时，石英的回收率在92%以上，赤铁矿的回收率在50%左右.人工混合矿分选试验结果表明:当捕收剂用量为33.33mg/L，淀粉用量为13.33mg/L，pH值为4.50~8.00时，NDIA均可实现石英和赤铁矿的有效分离.量子化学计算结果表明，与十二胺相比，NDIA对石英具有更好的捕收性能.zeta电位测试结果表明:NDIA在石英和赤铁矿表面均发生了吸附，且在石英表面的吸附作用强于赤铁矿.

关键词: 烷基羟丙基胺, 石英, 赤铁矿, 量子化学, 动电位

Abstract: Flotation behaviors of quartz and hematite in the presence of a new collector alkyl hydroxypropyl amine (NDIA) were investigated through flotation experiments. Combined with quantum chemical calculation and zeta potential analysis， the adsorption mechanism of NDIA on the mineral surface was studied. Flotation results of pure mineral showed that the flotation recovery of quartz was above 92% and the flotation recovery of hematite was around 50%， when the dosage of NDIA was 33.33mg/L， and pH value of the pulp was set from 4.50 to 8.00. Flotation results of artificial mixed mineral showed that quartz and hematite were effectively separated， when the dosage of NDIA was 33.33mg/L， the dosage of starch was 13.33mg/L and pH value of the pulp was set from 4.50 to 8.00. The results of quantum chemistry calculation indicated that NDIA had a better flotation performance than DDA to quartz. According to the results of zeta potential test，NDIA was adsorbed on both quartz and hematite surface， but the adsorption ability of NDIA on quartz surface was much stronger than that on hematite.

Key words: alkyl hydroxypropyl amine, quartz, hematite, quantum chemistry, zeta potential

中图分类号:

TD923.14

刘文宝，刘文刚，王鑫阳，张尧. 烷基羟丙基胺作用下石英和赤铁矿的浮选行为[J]. 东北大学学报:自然科学版, 2017, 38(12): 1775-1779.

LIU Wen-bao， LIU Wen-gang， WANG Xin-yang， ZHANG Yao. Flotation Behavior of Quartz and Hematite in the Presence of Alkyl Hydroxypropyl Amine[J]. Journal of Northeastern University Natural Science, 2017, 38(12): 1775-1779.

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烷基羟丙基胺作用下石英和赤铁矿的浮选行为

Flotation Behavior of Quartz and Hematite in the Presence of Alkyl Hydroxypropyl Amine

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