17%~19% Ceramic ball 1/2inch support media

Product Description

17%~19% Ceramic ball 1/2" for support media

Description:

Inert alumina ball-17 is called ceramic ball 17%~19% Al2O3.

It is equal to Denstone® 57 Support Media.

They are the most widely used support media in the world.

It is made of high quality chemical-porcelain clay materials,

which has quite excellent stability, high mechanical strength

and resistance to thermal shock, This makes them all ideal

choice for support of all types of catalyst.

Technical Parameter:

Type				Inert Alumina Ball-17
Color				Light gray
Shape				Ball
Chemical composition				Min. %				Max. %			Usual %
	Al2O3			17				19			18
	SiO2			70				77			74.9
	Al2O3 + SiO2			90				96			93
	Fe2O3			/				1.0			0.9
	TiO2			/				0.5			0.46
	CaO			/				0.65			0.42
	MgO			/				0.5			0.38
	Na2O			/				2			1.12
	K2O			/				3.5			3.28
Physical properties	Leachable Iron (%)							≤0.1
	Apparent Porosity by Weight (%)			D≥10mm				≤0.4
				D=6mm				≤1.0
				D=3mm				≤3.0
	Water absorption (wt.%)							＜1.0
	Acid resistance (%)							＞99.8
	E-modulus(Gpa)							60
	Alkaline resistance (%)							＞85
	Bulk Density(Packing density)			(g/cm3)				1.35
				(lb/ft3)				84
	Specific density			(kg/m3)				2300
				(lb/ft3)				144
	Moh’s hardness (scale)							7
	Thermal conductivity (w/m2.k)							0.9-1.0
	Specific heat (30 degC to 100 degC, Kcal/Kg dec)							0.2
	Max. Operating Temperature			(℃)				1050
				(℉）				1922
	Thermal conductivity, 30 degC to 100 degC, W/mK							1.0
	Thermal Shock Stability (times) (500 ℃ then water cooling)							10
	Co-efficient of thermal expansion 30 degC to 600 deg C, 10^-6K^-1							4.7
Geometric properties	Nominal Size	(mm)	3		6	10	13		16	19		25	38	50
		(inch)	1/8		1/4	3/8	1/2		5/8	3/4		1	1.5	2
	Crush Strength Min.	(lbs)	77		176	234	572		726	1672		1870	2090	3476
		(kg)	35		80	106	260		330	760		850	950	1580
		(N/PC)	343		784	1039	2548		3234	7448		8330	9310	15484
	Surface area	m2/m3	1285		520	350	280		220	170		125	105	65
	Void Fraction	%	44		44	44	45		45	45		45	45	45

Application:

● Mainly used in the petroleum, chemical industry, fertilizers, natural gas, environmental

protection and other industries. As a catalyst in the reactor to cover support media and tower packing.

Package:

25kg plastic bag

1350kg super sack

250kg~280kg steel drum