Activated Bleaching Earth

Chemical adsorption is through chemical linkage with a significant selectivity. The decoloration for fats and oils is by adsorbing and removing the pigment, which is in the state of the colloidal particles dispersed in the oil or dissolved in oil.

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Attapulgite Granular Activated Bleaching Earth

Product Description

The most important properties of activated clay are adsorption and decolorizing ability. Adsorption mainly means physical and chemical adsorption. Physical adsorption is attributed to Van Der Waal's forces. This force is commonly found both on the surface of the adsorbent and among molecules of adsorbate. As a result, the physical adsorption is non-selective but easy to reach equilibrium and has a better adsorption speed. Chemical adsorption is through chemical linkage with a significant selectivity. The decoloration for fats and oils is by adsorbing and removing the pigment, which is in the state of the colloidal particles dispersed in the oil or dissolved in oil.

Attapulgite Granular Activated Bleaching Earth

Specification

1.Physical/chemical characteristics (typical product data)

TEST ITEM	UNIT	STANDARD
Color	-	White or gray or light pink
Appearance	-	Power
Decoloring Rate	%	>98
Activity Degree	M.mol/kg	>210
Decolourization Capacity	-	>180
Specific Surface Area	M2/g	>200
Free Acid(as H2SO4)	%	<0.20
Moisture	%	<10
Particle size(200 Mesh)	%	>95
Filtering Rate	Ml/min	4
Bulk density	g/ml	0.5±0.10
PH value	(50g/L Suspension)	2.2-4.8

2.Heavy Metal Component (typical product data)

According to the standard method of "Determination of arsenic in food additives" issued by Standardization Administration of China and ICP Method

TEST ITEM	UNIT	INDEX
As	mg/kg	≦2
Pb	mg/kg	≦20
Cu	mg/kg	≦5
Hg	mg/kg	≦0.5

3. Chemical Component: (typical product data)

According to the standard method of "Chemical Analysis of refractory products by XRF" issued by Standardization

SiO2	77.39%
Al2O3	9.30%
Fe2O3	1.14%
CaO	0.19%
MgO	2.04%
K2O	1.15%
Na2O	0.14%
MnO	0.02%

4. Partical Size: (typical Product Data)

The particle size is characterized by a sieve analysis of the dry power, the following average values have been determined for the various sieve fractions: GB/T 25571-2011

+0.15mm	0.52%
+0.1mm~-0.15mm	2.08%
+0.075mm~-0.1mm	5.09%
+0.063mm~-0.075mm	27.27%
+0.045mm~-0.063mm	59.85%
+0.003mm~-0.045mm	4.82%

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Activated Bleaching Earth

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