摘要
针对白钨矿在低温高碱条件下粗选回收率低的难题,开发了一种新型捕收剂SCA,并在河南某白钨选矿厂进行了工业应用。结果表明,SCA比现场用捕收剂FX⁃6具有更优的白钨捕收性能和更强的耐低温、耐高碱性能;在抑制剂Y1用量30 g/t、温度10℃、pH值11.0、SCA用量220 g/t条件下,经一粗两扫闭路浮选,可获得WO3回收率79.95%的白钨粗精矿,相比FX⁃6,回收率提高了4.53个百分点;工业应用中,在捕收剂用量降低20.37 g/t条件下,使用SCA时的WO3回收率比使用FX⁃6时提高了2.76个百分点。SCA在低温高碱条件下对白钨矿的浮选指标较好,具有广阔的工业应用前景。
Aiming at the problem of low scheelite recovery from roughing at low temperature with high alkalinity, a new type of collector, SCA, was developed and commercially applied in a scheelite concentrator in Henan. The results show that, compared to the existing used collector(FX-6), SCA possesses higher WO3collecting capacity and better adaptability to low temperature and high alkalinity. Under the following conditions, including the dosage of depressant Y1 at an amount of 30 g/t, pulp temperature of 10 ℃, pH value of 11.0 and SCA dosage of 220 g/t, a closed-circuit process consisting of one-stage roughing and two-stage scavenging can produce a scheelite concentrate with a WO3recovery of 79.95%, 4.53 percentage points higher than that by using FX-6. An industrial practice shows that WO3recovery can be improved by 2.76 percentage points, and the collector dosage can be reduced by 20.37 g/t compared to the process with FX-6. It is concluded that SCA exhibits better performance in the scheelite flotation at low temperature with high alkalinity, and has broad prospect for industrial application.
作者
李卫
王旭
焦芬
张政权
覃文庆
周敬闽
张健
LI Wei;WANG Xu;JIAO Fen;ZHANG Zheng-quan;QIN Wen-qing;ZHOU Jing-min;ZHANG Jian(School of Minerals Processing and Bioengineering,Central South University,Changsha 410083,Hunan,China;Luoyang Yulu Mining Co Ltd,Luoyang 471500,Henan,China)
出处
《矿冶工程》
CAS
CSCD
北大核心
2022年第6期57-60,共4页
Mining and Metallurgical Engineering
基金
国家自然科学基金面上项目(51974364)。
关键词
白钨矿
捕收剂
低温
高碱
工业应用
scheelite
collector
low temperature
high alkalinity
industrial application
