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磷矿石的可选性,一般按如下顺序递减:硅质磷矿石>钙质磷矿石>硅(钙)—钙(硅)质磷矿石。然较难选别的钙质磷矿石,却占世界磷矿石储量的90％以上。因此,其选矿问题,普遍引起人们的关注。许多国家正在应用浮选、焙烧、化学选矿、重选、电选、光电选等方法进行广泛深入的研究。其中简单、易行、有效因而已付诸于工业生产的主要是浮选法和焙烧法。本文就此略加概述,以求正于读者。
Phosphate rock selectivity, generally decreasing in the following order: Silical phosphate rock> Calcium phosphate rock> Silicon (calcium) - calcium (silicon) phosphate rock. However, it is harder to choose other calcium phosphate rock, but account for more than 90% of the world’s phosphate rock reserves. Therefore, its beneficiation, the general cause for concern. Many countries are conducting extensive and in-depth research using methods such as flotation, roasting, chemical beneficiation, re-election, electricity election and photovoltaic election. Which is simple, easy and effective and has thus been put into industrial production, mainly flotation and roasting method. This article is a brief overview of this, in order to positive readers.