Experimental Study on Low-temperature Reverse-flotation of Iron Ore with Anionic Collector

Using a self-developed anionic flotation collector,reverse flotation tests on Yuanjiacun,Jianshan and Qidong Iron Ores were carried out at low temperature.The results show that the dressing indexes achieved with this collector at temperature of 15 ℃ are close to that obtained at 30 ℃.The energy consumption can be dramatically saved and the cost of reverse flotation can be reduced when the flotation process of iron ore is conducted at low temperature.