bleaching earth for refining edible oil

Payment Terms: T/T,L/C
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Basic Info.
  • Min.Order: 20 Metric Ton
Highly activated bleaching earth
Product description 
ATL4 is a highly active bleaching earth used in a wide scope of applications. It is manufactured by acid activation of calcium bentonite.
ATL4 is well suitable for the removal of polar compounds like chlorophyll, carotinoids, phospholipids and peroxides, via chemisorption and acid catalysis. 
ATL4 is very suitable for refining vegetable and animal oils and fats, moreover for finishing and/or reprocessing numerous types of mineral oils, paraffins and waxes.
Physical/chemical characteristics (typical product data)
Apparent bulk density  g/l 600
Free moisture  (2 h, 110 °C) % ~ 12
Loss on ignition (predried, 2 h, 1.000 °C) % 7,4
pH (10% suspension, filtered) - 3,0 –4,5
Acidity  mg KOH/g 0,2
Chloride content mg Cl/g 0,01
Surface area  m²/g 171
Free acid(calcalated as H2SO4 )              %                  0.01                             Decolorization ability                      %                   96 
Filtration properties 
The filtration time remains below 50seconds.
Particle size distribution
The particle size of ATL-4 is determined by a sieve analysis of the dry powder. The following average values have been found for the various sieve fractions:
> 150 µm % 2
> 45 µm % 50
Chemical analysis
ATL-4 (dried at 110°C for 2 hours) has the following composition (average values):
SiO2 % 64,7
Al2O3 % 15,5
Fe2O3 % 4,1
CaO % 1,6
MgO % 2,7
Na2O % 0,8
K2O % 2,4

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Mr. David lee (Export Manager)
Tel: 86-755-26812580
Mobile: 15017935468
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Contact Method
Shenzhen AoHeng Science&Technology Co., Ltd
B&H Plaza, 27 Nanhai Ave., Shekou,, Shenzhen, Guangdong, China (Mainland) / 518067
Fax: 86-755-26682387
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