After four - stage cleaning flotation. 86.8 % of ash was rejected from coal.
经过四步浮选后，灰分的去除率可达到86.8％；
2
A review is made of the practice of technical transformation of copper sulfur flotation technology from bulk flotation into stage selective flotation and then iso flotation in Yongping copper Mine.
对永平铜矿铜硫浮选工艺从混合浮选变为分步优先浮选，再变为等可浮工艺的改造实践进行了评述。
3
Soap KL-S100 is an excellent collector chemical for flotation deinking and can be added to the pulper, at the flotation cell stage or as a split addition at both points.