Dear Explerts How to increase 45 micron residue in cement same blaine. We have ball mill cement grinding closed circuit. presently we are grinding 3000 blaine 9% residue on 45 micron. I want to increase 45 micron residue to 14% with same blaine of 3000. What action required to take in seperator and mill parameters. your expert advice will useful for me. Abdul Hadhi