The optimal molar ratio of TEPA to ECH was 1:1.5.In treating artificial oilfield wastewaters by laboratory samples of synthesized end products as floatation agents in amount of 2 ppm,deoiling rates of 87 -96% are determined.

• 四乙烯五胺与环氧氯丙烷的最佳摩尔比为1：1.；5； 用四乙烯五胺制得的浮选剂的浮选效果比用甲胺、二甲胺、二乙胺、二乙醇胺制得的要好。