Paraffin Wax

In the preparation of Paraffin Wax, Slack Wax is first chosen as the Feed Stock. Slack Wax is obtained as a by-product when lubricating oil is refined. It is a mixture of Oil and Wax. Slack Wax is first de-oiled or de-waxed. The separation of Oil from Slack Wax is usually performed through Crystallisation. Crystallisation process works by heating the Slack Wax and mixing it with a solvent like Ketone. It is then cooled. When it cools, the solution is separated into Oil and crystallized wax. The mixture is filtered into solid and liquid streams. The solid stream consists of wax with some amount of solvent. The liquid stream has Oil and Solvent. Next, Distillation recovers the solvent. Post Distillation, the resulting products are product wax and foots oil. The product wax is further processed to remove colours and odours. Finally, the wax is blended and certain properties like melt point and penetration are added to it. This blended wax is Paraffin Wax.