论文部分内容阅读
The floatation of the minerals diaspore and kaolinite was investigated using dodecylamine as the collector.Separating diaspore and kaolinite in a neutral pH pulp is difficult since they then have similar floatability.A depressor consisting of an AlCl3/Na2SiO3 mixture is demonstrated to solve this problem.Diaspore sinking may be seen when the ratio of AlCl3 to Na2SiO3 is 3:1.We refer to this mixture as ATNO.The influence of Al/Si ratio in the feedstock and the grain size of fed minerals on separation was examined.An Al/Si ratio in the concentrate greater than 11 may be obtained when the Al/Si ratio of the feed is between 2.53 and 4.96.However,the grain size of the diaspore greatly influences the concentrate grade.Finer grain size of the diaspore(<40 μm) in pulp makes the flotation separation less than ideal,no matter what the kaolinite grain size.
The floatation of the minerals diaspore and kaolinite was investigated using dodecylamine as the collector. Sealing diaspore and kaolinite in a neutral pH pulp is difficult from then then similar floatability. A depressor consisting of an AlCl3 / Na2SiO3 mixture is demonstrated to solve this problem. Diaspore sinking may be seen when the ratio of AlCl3 to Na2SiO3 is 3: 1.We refer to this mixture as ATNO. The influence of Al / Si ratio in the feedstock and the grain size of fed minerals on separation was examined. An Al / Si ratio in the concentrate greater than than 11 may be obtained when the Al / Si ratio of the feed is between 2.53 and 4.96.However, the grain size of the diaspore predominating influences the concentrate grade. Finer grain size of the diaspore (<40 μm ) in pulp makes the flotation separation less than ideal, no matter what the the kaolinite grain size.