Flotation study on low-grade antimony ore of qilla abdullah .The present study was mainly focused on development of a suitable process for beneficiation of antimony ore of. Qilla Abdullah. For this purpose, the ore was investigated by froth flotation technique to produce antimony concentrate at Mineral Processing Laboratory, PCSIR,. Lahore. An effort was made to study the effect of.flotation method for antimony,Selective froth flotation concentration of antimonite ore from a .the changes in concentrations of antimony, lead and arsenic during this research. Index Terms—antimonite, arsenic, froth flotation, lead. I. INTRODUCTION. The froth flotation process is used for ore concentration by utilizing the physio-chemical differences among mineral particles. The process comprises of chemical.