bleaching earth

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Noun1.bleaching earth - an adsorbent clay that will remove coloring from oils
mud, clay - water soaked soil; soft wet earth
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KeywordsTransformer oil; Acid treatment and Characterization; Bleaching earth clay
Colour pigment must be removed so as to produce oil of brighter colour acceptable to consumers and these pigments are removed from the oil with bleaching earth or fullers' earth (John, 1990) through a process known as bleaching.
The first facility to start operation at the new site is going to be a new bleaching earth plant for Clariant's Functional Minerals Business Unit.
Around 20,000 litres of oil, a lorry, a van, five bags of bleaching earth, a large quantity of cat litter and ancillary equipment were seized.
There has been a significant reduction in the amount of raw materials and utilities used; hexane consumption and the use of bleaching earth have been reduced by 25 per cent.
Calcium montmorillonites are referred to as fuller's earth in Great Britain and the term is used in the United States to describe any clay material that has sorbent and bleaching earth capability.
PT Sud-Chemie Indonesia operates the third bleaching earth factory in the country built at a cost of US$ 10 million with an annual capacity of 45,000 tons in the Medan Industrial Area.
The treated oil is then bleached under vacuum with 1-2% of bleaching earth, followed by filtration.
Tenders are invited for Supply of Acidic Bleaching earth
One of the plants was a mobile operation and used bleaching earth while the static plant, hidden in a container, used cat litter to launder the fuel.
Engelhard Corporation (NYSE:EC) announced that it will implement an energy surcharge, effective immediately, on all bleaching earth products.
5 tonnes of toxic waste, 11,000 litres of suspected illicit fuel, a quantity of bleaching earth and a cattle truck with a concealed tank.