activated bleaching earth for tallow oil

1.bleaching earth characters:

1)strong decoloring-ability

2)good adsorption

3)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 :

棉籽、大豆abean, 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