The wax goes on to make candle wax and petroleum jelly even though the dewaxed oil purifies in to the attractive lube oil base stock. Challenges that come up from this process originate from selecting which sort of solvents to use. Most refineries use MEK While propane can be used https://ceiling-fan-with-remote-c09752.dreamyblogs.com/35832297/new-step-by-step-map-for-dongguang-tiancheng-machinery-factory