A sequentialselective chemical degradation was performed for the kerogen from the Nenjiang Formation of the southern Songliao Basin by using a series of mild chemical degradations.
Using sequentialselective flotation process and adding dextrin as main depressant obtain good separation result.
采用优先浮选工艺，糊精为主要抑制剂，获得了较好的分离指标。
3
The flowsheet of sequentialselective-flotation is suitable for the recovery of molybdenum and zinc sulfides from the tailings of magnetic separations treating Makeng iron ore.