Attapulgite Granular Activated Bleaching Earth

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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	INDEX
Color	-	White or gray or little yellow	accord
Appearance	-	Granular	Granular
Moisture	%	<3.0	0.5
Particle size	Mesh	30-60 Mesh 90% Min	95
		16-30 Mesh 90% Min	92
		40-120 Mesh 93% Min	95
Bulk density	g/ml	0.5-0.8	0.64
PH value	-	5.5-8.0	7.0
Loss on lgnition at 1000 ℃	wt%	5-10%	6.5

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	<3
Pb	mg/kg	<5
Cd	mg/kg	<0.75
Hg	mg/kg	<0.1

3. Chemical Component: (typical product data)

According to the standard method of “Chemical Analysis of refractory products by XRF" issued by Standardization Administration of China.

TEST ITEM	UNIT	INDEX
SiO2:	%	55.0 Min
Al2O3:	%	15Max
Fe2O3 :	%	8 Max
CaO:	%	3 Max
MgO:	%	14 Max
MnO:	%	1 Max

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Attapulgite Granular Activated Bleaching Earth

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