The decolorization ratio of syrup in sulfitation process is higher through experiments with multiple-stage flotation of syrup than that with single-stage flotation.
实验证实，糖浆多级上浮清净法比普通单级上浮法更能使亚法糖浆获得较高的脱色率。
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％；
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。
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