矿产保护与利用2024，Vol.44Issue(1)：67-73,7.DOI:10.13779/j.cnki.issn1001-0076.2024.01.009
改性黑药类捕收剂强化浮选玉龙铅锌矿中伴生银的无碱工艺研究
Alkali-free Process for Enhancing the Flotation of Associated Silver in Yulong Lead-Zinc Ore with Modified Dithiophosphate-type Collector
摘要
Abstract
Aiming at the low recovery of associated silver minerals during the flotation process of Yulong lead-zinc ore,a study on an alkali-free lead-silver flotation process with a novel collector was conducted.The research results indicated that,at a grinding fineness of-74 μm accounting for 65%,using sodium sulfite and zinc sulfate as depressants,and adopting the modified dithiophosphate-type collector CY-1,significantly enhanced the silver recovery in lead-silver concentrate under alkali-free conditions.Closed-circuit experiment of this process obtained the lead-silver concentrate with a lead grade of 52.05%and a silver grade of 4 866 g/t.The recovery rates for lead and silver were 91.76%and 84.43%,respectively.Compared to the high-alkali process using sodium diethyldithiocarbamate and ammonium dibutyl dithiophosphate as collectors,the lead and silver recovery rates increased by 2.5 and 6 percentage points,respectively.This process eliminates the depression of lime on silver minerals during the flotation process,contributing to the comprehensive recovery of rare precious metals associated with lead-zinc ore and enhancing the overall resource utilization efficiency.关键词
浮选/铅锌矿/伴生金属/银/无碱工艺/捕收剂Key words
flotation/lead-zinc ore/associated metal/silver/alkali-free process/collector分类
矿业与冶金引用本文复制引用
江锋,何帅,唐鸿鹄,吴永安,韩英杰,许世明..改性黑药类捕收剂强化浮选玉龙铅锌矿中伴生银的无碱工艺研究[J].矿产保护与利用,2024,44(1):67-73,7.基金项目
国家重点研发计划课题(2022YFC2904501,2022YFC2904502) （2022YFC2904501,2022YFC2904502）
湖南省自然科学基金项目(2023JJ20071) （2023JJ20071）
湖南省科技创新计划项目(2023RC3067) （2023RC3067）
