2018 new oil recycle activated bentonite fuller earth
Production Progress
Bentonite fuller earth:
Characters
1) High bleaching efficiency
2) Low oil retention
3) Fast filltration rate
4) Ability minimise the increase of free fatty acids
5) Removing impurities like soap & trace metals
w/o affecting appearance, flavour & nutritional properties of Oil
Application Fields
1)Decolorization of plant oils: soyabean oil,corn oil,palm oil,coconut oil, sunflower oil, peanut oil,cotton seed oil,olive oil, rice bran oil, castor oil, linseed oil, tung oil, rapeseed oil, etc.
2) Decolorization of mineral oils: Used lubricants oil,motor oil,engine oil,automative oil, paraffin wax,olefin,diesel, etc
3) Juice and wines’ clarifying.
4)medicine and environmental industries: Antidote and adsorbing materials, waste water treatment.
5) Enhance stability of the Refined Oil.
Physical specs (we can produce as per your request)
|
Partical size(-2μm) |
Min 95% |
|
Free acid(NaOH) |
Max 0.25% |
|
Moisture |
Max 9% |
|
PH |
4 |
|
Specific surface area |
285m2/g |
|
Density |
0.59 g/ml |
|
Heavy metal (pb) |
Max 0.005% |
|
Arsenic content |
Max 0.0005% |
|
Decoloring ability |
Min 92% |
important Points During Bleaching
1) Normally about 0.5%- 3% of earth is required for bleaching application of vacuum during process which results in less oxidation & improvement in oil colour.
2) Choice of bentonite fuller earth as per its characteristics.
3) Total acidity (titrable acidity) of clay is expressed as mg of KOH/g of clay on a hot water extract.
4) Moisture content of Earth is vital as activity of clay depends on the evaporation of moisture from earth after its admixture with oil (10 % max free moisture is desirable)
5) The Particle size of Earth affects filtration & oils retention as per type of earth used & determines losses during bleaching process.
6) Operations & maintenance of filters is very important during process.
7) Treatment with Acid Activated Bleaching Earth in post-bleaching step removes traces of Nickel from hydrogenated oils (0.25-0.5% of earth used).
Oil Loss Economics During Bleaching
Spent bentonite fuller earth carries around 30% of oil on dry basis by hot water washing of filter press, the oil content can be brought down to 22% on the average.
Customers’ area now
Europe: UK, Ireland, Netherlands, Czech Republic;
Middle-east: UAE, Saudi Arabia, Iran, Yemen, Egypt, Libya;
Asia: Bangladesh, Thailand, Viet Nam, Philippines, etc.
Packing and Loading Pictures
