bleaching powder forused oil:
1.bleaching powder characters:
1)strong decoloring-ability
2)good adsorption
3)low free acid
2. bleaching powder 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 powder usage:
Broadly speaking,bleaching powderfinds use in following fields:
1)Refining ofVegetable oilslike :
棉籽、大豆、向日葵、油菜籽、芥末, Peanut, Coconut,
Corn, Olive, Ricebran, Palm, Linseed, Castor, tung oil and so on.
2)Refining ofhydrogenated vanaspatighee oils, Margarine & shortening.
3)Refining ofAnimal Fatslike tallow oil, fish oil, lard oil.
4)Refining ofMineral Oilslike:
- paraffin and waxes
- insulating oil
- rolling oil
- white oil
- waste oil (lubricating oil)
- vaseline
- olefin
4. bleaching powder specs:
refining ability |
pct min 93 |
partical size(-2μm) |
pct min 95 |
free acid(NaOH) |
pct max 0.25 |
moisture |
pct max 9 |
PH |
4 |
specific surface area |
285m2/g |
density |
0.59g/ml |
heavy metal(pb) |
pct max 0.005 |
arsenic content |
pct max 0.0005 |