第18卷第3期 2018年6月
过程与工艺
过程工程学报
The Chinese Joumal of Process Engineering
Vol.18 No.3 June2018
DOI: 10.12034/j.issn.1009-606X.217409
滇东某多金属氧化铅锌矿高效回收选矿工艺蔡锦鹏，宋凯伟，申培伦，李健民，刘瑞增，刘殿文”
（昆明理工大学国土资源工程学院，复杂有色金属资源清洁利用国家重点实验室，云南昆明650093）
摘要：对滇东某多金属氧化铅锌矿采用先铅后锌的工艺浮选，浮选流程均为两粗一精一扫.结果表明，矿石中有价元素为铅，锌、银，铅主要赋存于白铅矿和铅矾中，锋主要赋存于菱锌矿和异极矿中，银以伴生形式存在，目的矿物嵌布粒度较细，浮选所得铅精矿铅品位为61.45%，铅回收率为86.41%，银品位为451.58g/t，银回收率为66.73%，含锌3.68%；锌精矿锌品位为42.32% 锌回收率为90.63%，含铅1.39%.两性捕收剂R144对锌的捕收能力和选择性比十二胺、十八胺和二者混合胺更好
关键词：氧化铅锌矿：优先浮选：两性捕收剂：捕收能力；选择性中图分类号：TD952
文献标识码：A
文章编号：1009-606X(2018)03-061206
High EfficientRecovery of Oxidized LeadZinc Minerals from a Multi-metal Ore in
theEasternRegionofYunnanProvince
Jinpeng CAI, Kaiwei SONG, Peilun SHEN, Jianmin LI, Ruizeng LIU, Dianwen LIU*
(FacultyofLand Resources Engineering,StateKey LaboratoryofComplexNon-ferrousMetal Resources Cleaning Utilization
Kunming University of Science and Technology, Kunming, Hinnan 650093, China)
Abstract: A selective flotation process of lead minerals was developed to a leadzinc oxide ore in the eastem region of Yunnan Province, China. The flotation process with two roughing, one cleaning and one scavenging was adopted in the recovery of lead and zinc. The results showed that the valuable elements in the ore were lead, zinc and silver. The main minerals of lead cerussite and anglesite, zinc were smithsonite and hemimorphite respectively, and silver minerals associated mostly with lead minerals. The dissemination of valuable mincrals was relatively fine. The lead concentrate grade was 61.45% with Pb recovery rate 86.41%, the grade of Ag was 451.58 g/t and the recovery rate was 66.73%, containing 3.68% Zn. The zinc concentrate grade was 42.32% and the recovery of Zn was 90.63%, containing 1.39% Pb. The amphoteric collector R144 showed better performance both in collecting ability and selectivity to zinc minerals than that of dodecylamine, octadecylamine and combined amines.
Key words: leadzinc oxide ore; preferential flotation; amphoteric collector; collecting ability; selectivity
1前言
我国已探明的铅锌矿产资源中，氧化铅锌矿占有相当的比重.随着硫化铅锌矿的不断开发和日益乏，铅锌资源加工面临着新的困难，高效回收氧化铅锌矿石中的铅锌矿物成为近年来选矿研究的重要内容之一[1-3]
浮选氧化铅锌矿比其它氧化矿更困难，原因是[4-10](1）氧化铅锌矿物常与其它氧化矿物紧密共生，嵌布粒度细，单体解离易过粉碎产生细泥，选择性差，有用矿物回收困难；(2）氧化铅矿中铅铁矾、菱铅矾等难选矿
物的解理面极性很强，强烈亲水，目前的技术浮选难以回收：(3）氧化锌矿在成矿过程中表面常被氧化铁污染，失去其原有的浮选性能：(4）氧化锌矿的有效捕收剂胺盐在浮选过程中易产生厚而黏的泡沫层，消泡困难。
本工作针对滇东某多金属氧化铅锌矿矿石高品位、矿物组成复杂、目的矿物嵌布粒度较细等特点，制定合理的浮选流程和药剂制度，并采用两性捕收剂R144选锌，在取得良好选别指标的同时解决了胺类捕收剂捕收能力弱、选择性差及消泡困难等问题，为该氧化铅锌矿的开发与利用提供技术依据
收稿日期：2017-12-12，修回日期：20180125
基金项目：国家自然科学基金资助项目(编号：51264019)：国家重点基础研究发展计划(973)基全资助项目(编号：2014CB643404)
作者简介：蔡锦聘(1993-），男，潮北省黄冈市人，硕土研究生，矿物加工工程专业，Tel:15587025760,E-mail:2314265915@q9-com；刘股文，通讯联系
人， E-mail: Idwkust126.com
引用格式：蔡锦鹏，宋凯伟，申培伦，等，滇东某多金属氧化铅锌矿高效国收选矿工艺，过程工程学报，2018,18(3)：612-617
Cai,SongK W,ShenP,et al.HighEficient RecoveryofOxidized LeadZinc Mineralsfrom aMulti-metalOre in theEastem Regionof Yunnan Province (in Chinese). Chin. J. Process Eng-, 2018, 18(3): 612617, DOl: 10.12034/j.issn.1009-606X.217409
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