The rubber filling oil was preparing using MEK dewaxedoil as raw material, adopting one stage serial connection hydrofining process with RJW-2 catalyst.
The new developed RFA6601 filter aid has superior abilities for low wax content deasphalted oil to increase filtration rate, dewaxedoil yield and wax drop melting point.
After using dewaxing aid, the filtration rate and the dewaxedoil yield were improved, the oil content in slack wax was decreased, and the dewaxedoil changed little in solidification point.