胺类阳离子捕收剂的合成及现状研究

hina’s bauxite resources is abundant,But 98% is diaspore, which is high aluminum, high silicon, and low-Al-Si ratio. At present, the key of change China’s alumina industry from the high energy consumption and the combined method to the Bayer method is to improve the Al-Si ratio by flotation desilication. Compared with flotation, reverse flotation has more advantages, study from the charge properties and crystal structure of aluminum silicate minerals, we known that cationic collector is effective, therefore, amines as the preferred. This paper mainly describes the application of several amine cationic collector in reverse flotation, also described the synthesis principle and the review of the study on them.