PROCESS FOR PROCESSING OF LOW-QUALITY PHOSPHATE RAW MATERIAL

摘要

A process for processing of low-quality phosphate raw material comprises staged selective solving at first carbonate component of phosphate rocks. Selective solving is carried out in solutions of lactate or acetic acids, wherefore ground phosphate rock is mixed with solution of corresponding organic acid in ratio of solid and liquid phases 1:5 at temperature of 333 K for 30-60 minutes.