BENEFICIATION OF PHOSPHATE ROCK FOR THE SEGREGATION OF PHOSPHORUS CONTAINING HEAVY METAL FREE MINERALS

摘要

Beneficiation of Phosphate Rock for the segregation of phosphorus containing heavy metal free minerals relates to the novel method of separation of exclusive phosphorus-minerals from phosphate rock (PR) ore using crystalinity property in order to obtain heavy-metal free advance phosphorus based products, so that manufactured products and by-products are useful to industries engaged in phosphorus fertilizers and other phosphorus containing products, and products derived from raw materials like gypsum, dolomite, feldspars, apatites, and sepiolites or use them as such. The process consists of physical breakdown of large rock materials into sand size accompanied by screening, and followed by sink-or- float separation using chemical that does not dissolve phosphorous and can be used several times, thereby proving to be a step ahead from the state of the art.