عنوان مقاله [English]
Due to the widespread use of phosphate, there is a need for extensive studies and experiments in relation to its processing. In this research, flotation method was used to remove carbonate gang with the help of a collector made of G (j-mrap1). The grade of sedimentary ore of Charam phosphate mine used in this research is 13% P2O5 and it is considered as a low grade reserves and also its sub-minerals are 46% of calcite and 7% of silica. To achieve a commercial grade of 28% P2O5, a new collector with a hydroxamic acid operating group has been synthesized and used. By optimization by experimental design software (DX7), at pH equal to 6.2 and collector 1000 g / ton, the maximum recovery of 84.97% P2O5 with a grade of 27.71% P2O5 was achieved. By changing the pH to 6.5 and the amount of collector to 1200 g / ton, the concentrate with the highest grade was 29.47% P2O5 and 82.87% P2O5 was recovered. The use of plant-based synthesized collectors indicated that this type of collector could be a suitable alternative to chemical-based collectors.