黑龙江科技大学学报2025，Vol.35Issue(6)：902-906,914,6.DOI:10.3969/j.issn.2095-7262.2025.06.006
含氧官能团类药剂对宁东低阶煤浮选效果的影响
Effect of oxygen-containing functional group agent on flotation of low rank coal in Ningdong
摘要
Abstract
This paper seeks to explore the effect of oxygen-containing functional group agent on the flotation of the low-rank coal in Ningdong.The study performs the flotation experiments by taking dode-canone,dodecanol,oleic acid,dodecanal and methyl dodecanoate as the collectors,and characterizes and analyzes the effects of oxygen-containing functional group collectors on the surface structure and func-tional groups of the coal samples before and after flotation through contact angle,FTIR and Zeta poten-tial.The results show that the five reagents can enhance the flotation effect in different degrees in order of effectiveness with Methyl dodecanoate>Dodecanal>Dodecanone>Oleic acid>Dodecanol;all five reagents increase the contact angle of the coal samples by the best enhancement effect of methyl dode-canoate for flotation.Compared with the raw coal,the peak area of polar functional groups of the five treated coal samples decreases,and the hydrophobicity and floatability increase;the coal samples in the reagent system have higher C content and lower O content.关键词
低阶煤/含氧官能团/浮选/接触角/Zeta电位Key words
low rank coal/oxygen-containing functional group/flotation/contact angle/Zeta poten-tial分类
矿业与冶金引用本文复制引用
Li Mingming,Li Wencheng,Ding Shufang,Zhang Qian..含氧官能团类药剂对宁东低阶煤浮选效果的影响[J].黑龙江科技大学学报,2025,35(6):902-906,914,6.基金项目
山西工学院高层次人才科研启动金项目(022012) （022012）
黑龙江省自然科学基金项目(LH2020E124) （LH2020E124）
