Activated bleaching earth
1.bleaching earth characters:strong
decoloring-ability and good adsorption,low free
acid
2. bleaching earth
working: emerge and
separate some matters, such as pigment,colloid,impurity,dram heavy
metal in lipid which can cause oxidant and activator
toxic.
3. bleaching earth
usage: Broadly
speaking, activated bleaching earth finds use in following
fields: 1)
Refining of Vegetable oils like :
Cottonseed, Soyabean, Sunflower, Rapeseed, Mustard, Peanut,
Coconut, Corn, Olive, Ricebran, Palm, Linseed, Castor, tung oil and
so on.
2)Refining of
hydrogenated vanaspati ghee oils, Margarine &
shortening. 3)
Refining of Animal Fats like tallow oil, fish oil, lard
oil. 4)
Refining of Mineral Oils like:
- paraffin and waxes
- insulating oil
- rolling oil
- white oil
- waste oil (lubricating oil)-
vaseline-
olefin
