In this process slack wax feedstock is going through the sweating chamber. Sweating chamber is a insulated structure which contains rectangular trays and equipped with screen mesh.

Coils and elements are included for cooling and heating purposes. General process steps are as below:

First, fresh water is filled in each tray, and then feedstock will filled in each tray. Cooling water is circulated through the ducts in order to crystalize wax. Water will be removed and sweating process starts until the paraffin wax reaches the oil connect requirements.

The semi-finished paraffin wax will go through further purification process like Decoloring & Deodorizing to make fully refined paraffin wax.