Flotation techniques are applicable to direct disseminated finely particulate silica gel a calcium phosphate mineral. The method is to grind the phosphate rock once to the monomer dissociation, add the S series inhibitor to inhibit all the gangue minerals, and then add the collector to float the phosphorus mineral. The process has a simple process. The advantage of high impurity separation efficiency. This technology is the world's leading level. Has been adopted by the king set China's Hubei Province (scale of 1.5 million tons / year) and Meiyukou (1.5 million tons / year) two large phosphate beneficiation plant. When the ore P2O5 grade is 15-18%, MgO4-6%, the process can obtain P2O5=30～34%, MgO=1.5～2.O%, P2O5 recovery rate of 80% or more technical indicators. N-Butyl-N-Methylpyrrolidinium Bromide,N-Butyl-N-Methylpyrrolidinium Bromide 93457-69-3,Cas 93457-69-3,Pyrrolidine Ionic Liquids Henan Tianfu Chemical Co.,Ltd , https://www.tianfuchem.com