中文摘要：

利用新型复合捕收剂，采用正浮选的方法对贵州某高硅磷矿进行浮选试验，考察了抑制剂用量、捕收剂复配比例和增效剂用量对精矿产率、精矿P205品位和精矿P205回收率的影响。结果表明，当原矿P20s品位为24．64％，磨矿细度一0．074mm占86％，捕收剂用量0．92kg／t，捕收剂W01与W02复配比为2：1，抑制剂NazCO3用量11．54kg／t、Na2Si03用量3．0kg／t。增效剂用量0．75kg／t时，可获得P205品位30．16％、P205回收率90．25％的磷精矿。

英文摘要：

Flotation tests were conducted on a high silica phos- phate rock in Guizhou, using a new collector. The effects of dosa- ges of depressor and collector as well as proportion of synergists on the concentrate yield,grade and recovery of P2 05 in phosphate concentrate were examined. The results of the tests showed that the phosphate concentrate with P205 grade 30.16% and P2O5 re- covery of 90. 25% could be obtained as grade of raw ore was 24.64% ,grinding fineness of-- 0. 074 mm was 86%, dosage of synergist was 0. 75 kg/t,dosages of collector was 0. 92 kg/t,pro- portion of WO1 ： WO2 = 2 ： 1, dosages of depressors Na2CO3 and Na2SiO3 were 11.54 kg/t and 3.0 kg/t respectively.