焦炭-磷矿石-钾长石体系同步提取磷和钾

Simultaneous Extraction of Phosphorus and Potassium From Coke-Phosphate Rock-Potassium Feldspar System

文章以钾长石与中低品位磷矿石资源的合理利用为目的,借鉴窑法磷酸生产原理,以焦炭、磷矿粉和钾长石为主要原料,在高温下焙烧,以磷的反应率和钾的溶出率为主要指标,考察了还原剂焦炭用量、焙烧温度、焙烧时间、钙硅比、助剂种类及助剂添加量对反应的影响。实现了焦炭-磷矿石-钾长石体系同步提取磷和钾。

In this paper, K-feldspar and low-grade phosphate rock rational use of resources for the purpose of draw kiln phosphoric acid production principle, coke, rock phosphate and＇ potassium feldspar as the main raw material, calcination at high temperatures, the reaction of phosphorusthe dissolution rate and potassium was the main indicator examines the amount of reductant coke calcination temperature, calcination time, calcium silicon, additives types and additives added to the reaction. Coke-rock phosphate-potassium feldspar system synchronization to extract the phosphorus and potassium.