Lubricating oil is made using various methods in Indiana.
Indiana United States USA Date:1926 Duration:4 min 1 sec Sound:NO SOUND
The process of gaining lubricating oil from crude oil in steam and fire stills in Indiana, United States. Smoke from the chimneys. The distillation of the crude oil takes place. Animation shows the process. Steam is passed into the still to prevent the 'cracking' process. The lighter portion of the oil vaporize and condense first. Then the oil is treated chemically, freed from wax, filtered and sent to storage. The remainder called the 'bottom stock' is treated with chemicals to remove further impurities. The stillman performs the process. This oil contains petrolatum which is to be removed. It is mixed with naphtha and chilled in cold settling tanks. The petrolatum settles to the bottom of the tank due to this process.
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