Process for the production of medicinal white oil using m41s and sulfur sorbent

Abstract From the Canadian patent

A four stage process for producing high quality white oils particularly food , or medicinal grade mineral oils from mineral oil distillates. The first reaction stage employs a sulfur resistant hydrotreating catalyst and produces a product suitable for use as a high quality lubricating oil base stock. The second reaction stage employs a hydrogenation/hydrodesulfurization catalyst. The third stage employs a reduced metal sulfur sorbent producing a product stream which is low in aromatics and which has substantially "nil sulfur". The final reaction stage employs a selective hydrogenation catalyst that produces a product suitable as a food or medicinal grade white oil.