矿产保护与利用2023，Vol.43Issue(6)：100-106,7.DOI:10.13779/j.cnki.issn1001-0076.2023.06.012
改性脂肪酸低温浮选宜昌某低品位磷矿
Low Temperature Flotation of a Low-grade Phosphate Rock in Yichang by Modified Fatty Acids
摘要
Abstract
In order to develop the low-grade colloidal phosphate ore resources with low magnesium and high sesquioxide in a mine in Yichang of Hubei Province,cotton oil fatty acid soap was used as raw material and compounded with polyoxyethylene ether nonionic surfactant to obtain a good selective anionic collector MON-135,which was used to conduct a pilot study of low temperature direct and reverse flotation.The experimental results showed that at a flotation pulp temperature of 14℃and a grinding fineness of-0.074 mm 93.7%,a process was adopted involving direct flotation with one roughing and one cleaning and one scavenging followed by one roughing and one scavenging in reverse flotation,the dosages of sodium carbonate,water glass and MON-135 for direct flotation roughing were 7.0 kg/t,3.0 kg/t and 1.4 kg/t,respectively;the dosage of MON-135 for positive flotation sweeping was 0.5 kg/t;the dosages of sulfuric acid and collector LAA-T for reverse flotation roughing were 9.0 kg/t and 0.9 kg/t,respectively;and the dosage of sulfuric acid for sweeping was 2.5 kg/t.the phosphate concentrate P2O5 grade of 32.61%and recovery of 92.67%were obtained in the closed circuit test.The results show that the use of low temperature collector can effectively flotation collophane ore at a lower flotation temperature,and can obtain a better beneficiation index.关键词
低品位胶磷矿/低温浮选/正反浮选/捕收剂MON-135Key words
low-grade collophane ore/low-temperature direct/reverse flotation/collector分类
矿山工程引用本文复制引用
刘宇桐,罗惠华,赵军,彭李情,刘菊,岑梅,李封元..改性脂肪酸低温浮选宜昌某低品位磷矿[J].矿产保护与利用,2023,43(6):100-106,7.基金项目
湖北省揭榜制项目(2021BEC029) （2021BEC029）
湖北省技术创新重大项目(2018ACA153) （2018ACA153）
武汉工程大学研究生教育创新基金项目(CX2022597) （CX2022597）
