Bleaching earth or calleld "activated bleaching earth", "fullers earth", "Bleaching Clay", "Activated Clay", "Activated bleaching clay", " activated earth" was widely used for refining mineral oils, vegetable oils, edible oils and fats, lubricants, wax etc to remove the impurities and unwanted matter, such as colouring substance (carotenoids), soaps, proteins and so on
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