After the induction of High Pressure Grinding Rolls at rock Phosphate Beneficiation Plant, The belt Drum Filters (BDF's) performance rapidly deteriorated. This was mainly attributed to fine grinding i.e., about 85% < 25 microns. The phosphate cake produced by BDF was sloppy and posed problems in handling and transportation. The sloppier the product the more inefficient in loading and transportat-ion'. Thus the most daunting task was to reduce moisture
content of phosphate cake from about 22% to 13-15%. This paper discusses the most critical role played by nano-technology in tackling this problem
