The advanced treatment for the chips, industrial waste discharged from high speed grinding process (about 80ton/month), was investigated To confirm die separation technology of machine oil from chips, absorbing ahereateristics of kerosene for acetone vapor, absorption rate in bubbling layer and residence time in spray tower were measured Henry's constant and Sh-Re relations were calculated Residence time in spray tower of 200mm diameter and 2m height with three spraying nozzle was investigated
