High purity alumina ceramic ball  corundum ceramic ball

Widely used in petroleum, chemical, natural gas, environmental protection and other industries, as the catalyst support covering the reactor material, its main role is to increase the gas or liquid distribution points, support and protection of low activity catalyst.

High purity alumina ceramic ball / corundum ceramic ball features

1, high purity Alpha alumina structure and low content of silica
2, good heat resistance and mechanical impact resistance
3, good chemical stability

High purity alumina ceramic ball / corundum ceramic ball range of applications

• Desulfurizer
• Dehydrogenation
• Catalytic reforming
• Catalytic isomerization
• Ethylene cracking and drying
• polymerization
• Low temperature conversion
• High temperature conversion
• Methane conversion
• Naphtha reforming
• Methanol and hydrogen production

Chemical Properties of High Purity Alumina Ceramic Balls / Corundum Balls

chemical composition	90% ceramic balls	99% ceramic balls	99.5% ceramic balls
Al2O3	>90%	>99%	>99.5%
SiO2	<7%	<0.2%	<0.15%
Fe2O3	<0.5%	<0.1%	<0.1%
Na2O+K2O	<1.0%	<1.0%	<0.4%
MgO+CaO	<1%	<0.2%	<0.2%

Physical Properties of High Purity Alumina Ceramic Balls / Corundum Balls

Item		90% ceramic ball	99%-1 ceramic ball	99%-2 ceramic ball	99.5% ceramic ball
The maximum working temperature		1500℃	1500℃	1600℃	1600℃
Water absorption		<5%	<2-6%	<1%	<1%
proportion		≥3.1g/cm3	≥3.3g/cm3	≥3.65g/cm3	≥3.68g/cm3
dulk density	≤38mm	1.8kg/L	2.0kg/L	2.0-2.16kg/L	2.0-2.16kg/L
	50mm	1.6-1.7kg/L	1.9-2.0kg/L	2.0kg/L	2.0kg/L
	70mm	1.6kg/L	1.9kg/L	1.9kg/L	1.9kg/L
Moh’s hardness		9 levels	9 levels	9 levels	9 levels
Impact resistance (free fall from 6 meters off 25mm thick steel plate without broken)		pass	pass	pass	pass
Single compressive strength (kN)	3mm	0.4	0.5	0.6	0.6
	6mm	1.3	1.5	1.6	1.6
	10mm	5	6	6	6
	13mm	7	8	8	8
	16mm	15	9	13	13
	19mm	17	18	19	19
	25mm	22	20	22	22
	38mm	35	37	40	40
	50mm	40	42	45	45
	76mm	50	55	60	60

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