High Alumina Ceramic Ball

High Alumina Ceramic Ball:   Ceramic Balls are widely used in many fields,including petrolerm chemical engineering,fertilizer production,natural gas and environmental protection .They are used as covering and supporting materials of catalysts in reaction vessels and as packing in towers.With stable chemical features and a low rate of water absorption ,they can resist high temperatures and high pressure.They can also resist the corrosion of acid,alkali and some other organic solvents,and are able to stand the change in temperature during the manufacturing process.The main role of these ceramic balls is to increase the distribution spots of gas or liquid ,and to support and protect the activating catalyst with low strength.

Specifications and varieties 
 

Diameter	3	6	8	10	13	16	20	25	30	38	50	65	75
Diameter permit difference	±1.0				±1.5				±2.0			±3.0

Physical feature

Item	Unit Index	Chemical compositionIndex
Specific gravity	G/cm3	2.3-3.5
Specific heat	Cal/goc	0.17-0.2
Compressive	Kg/cm2	≥1500
Hardness	Mohs grade	>7
Wear ability rate	%	<0.05
Water aborption rate	%	>1

Chemical compositions

Composition	Index
Al2O3	80-95%
SiO2	3-17%
MgO	0.5%
Fe2O	0.3%
CaO	0.2%
Na2O	0.1%
Other	Trace

Type

Variety	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17
Contents of Al2O3	<25	25	30	35	40	45	50	55	60	65	70	75	80	85	90	95	>95

Chemical composition

Name	Al2O3	SiO2	TiO2	Fe2O3	R2O3	MgO	Cr2O	Others
Content	60-99	48-62	1.6	<0.5	0.8	0.2	0.1	0.1
Remarks	The contents of Al2O3 and SiO2 are decided as per design requirements

  *Note: we can manufacture all kinds of ceramic ball according to customer's requirements.