1972年,我们从褐煤、泥煤或风化烟煤中制取腐植酸钠试验成功。腐植酸钠是一组高分子化合物的混合物,属于阴离子型的聚电解质。实验证明,腐植酸钠对于铁矿物具有良好的抑制作用和絮凝作用,如云锡、大厂、平桂和香花岭等矿在解决锡铁分选问题时,采用腐植酸钠抑制铁矿物,提高锡精矿品位,都取得了较好效果;腐植酸钠用于祁东铁矿做为铁矿物的选择性絮凝剂,也取得了满意结果。本试验系采用腐植酸钠作为抑制 In 1972, we successfully produced sodium humate from brown coal, peat or weathered bituminous coal. Sodium humate is a mixture of macromolecular compounds belonging to the anionic polyelectrolytes. Experiments show that sodium humate has a good inhibitory effect on iron minerals and flocculation, such as Yun-tin, Dachang, Pinggui and Xiang-hua Ridge and other mines in the solution tin-iron sorting problems, the use of sodium humate inhibition of iron minerals , Improve the quality of tin concentrate, have achieved good results; sodium humate for Qidong iron ore as a selective flocculant, also achieved satisfactory results. This test uses sodium humate as a suppressant