The Science Behind Activated Bleaching Earth in Oil Purification

In the process of oil purification, activated bleaching earth plays a crucial role in removing impurities and color from the oil. This article will delve into the science behind activated bleaching earth and its effectiveness in oil purification.

Activated Bleaching Earth: Composition and Structure

Activated bleaching earth, also known as activated clay, is a type of clay that has been treated with strong acids to increase its adsorptive properties. It is composed of various minerals such as montmorillonite, bentonite, and attapulgite, which contribute to its high surface area and porosity.

Mechanism of Adsorption in Oil Purification

The science behind activated bleaching earth lies in its ability to adsorb impurities and color pigments from the oil. When the oil is mixed with activated bleaching earth, the clay particles attract and trap the impurities, allowing for the purified oil to be separated from the earth.