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Excellent High Density Inert Alumina Balls 13mm Catalyst Support Media

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Excellent High Density Inert Alumina Balls 13mm Catalyst Support Media

Brand Name : WeiHang

Place of Origin : Jiangsu, China

MOQ : 1 Long Tons

Price : Negotiation

Supply Ability : 5000 Long Tons Per Month

Packaging Details : insert + polybag

Name : catalyst support ceramic ball

Acid resistance : >90%

Bulk density : 1300-1400 kg/m3

Al2O3 : 17-23%

Material : Alumina Ceramic

Usage : support media

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Excellent High Density Inert Alumina Ball 13mm Catalyst Support Media

Model 17%-19%Ordinary Ceramic Ball
Color Light gray
Shape Ball
Chemical composition Min. % Max. % Usual %
Al2O3 17 19 18
SiO2 70 77 74.9
Al2O3 + SiO2 90 94 93
Fe2O3 / 1.0 0.9
TiO2 / 0.5 0.46
CaO / 0.5 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.%) <0.5
Acid resistance (%) >99.8
Alkaline resistance (%) >85
Bulk Density (g/cm3) 1.35
(lb/ft3) 84
Specific density (kg/m3) 2300
(lb/ft3) 144
Moh’s hardness (scale) >6.5
Thermal conductivity (w/m2.k) 0.9-1.0
Specific heat (J/kg.℃) 628-837
Max. Operating Temperature (℃) 1050
(℉) 1922
Thermal expansion (%) (500℃) 0.20

Thermal Shock Stability (times)

(500 ℃ then water cooling)

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

Production Introduction

Inert alumina ceramic ball has the characteristics of high strength, low water absorption, high chemical stability, high thermal stability, resistance to high temperature and high pressure. It can not only resist the corrosion from the acid, alkali, salt and other organic solvent, but also the temperature change in production process.
Inert alumina ceramic ball is widely used in petroleum, chemical, fertilizer, natural gas and environmental protection industries, as the supporting and covering material of catalyst in reactors. Its main role is to increase the distributing spot of gas or liquid, also support and protect the activated catalyst with low strength.

Inert alumina ceramic ball characteristics and advantages

1. High mechanical strength (Monolithic spheres will not split, crack or spall in use)
2. High temperature resistance
3. Lower water absorption
4. Quite excellent chemical stability
5. Can resist corrosion of acid, alkali and other organic solvent
6. Excellent thermal shock resistance (can withstand the temperature urgent changes occurred in production process)
7. Trouble-free reactor filling due to high crush strength
8. Will not plug catalyst bed, optimizing the process efficiency by keeping the pressure drop low and catalyst activity high
9. No contaminate catalyst due to maximize resistance to attrition, extending the catalyst Activity life and reduce the operation cost

Packing and delivery:

Packing of Insulating brick: Standard export wooden pallet with cardboard.

Shipping of Insulating brick: By vessel or by train from any Chinese port,

Samples can be delivered by International express.


Q1 : How can you control your quality?

A1: Donghua company will conduct reburning test and chemical analysis test on the products after the completion of the products.

Q2: What is your lead time?

A2: If you are buying a finished product, Donghua guarantees to ship within one week; if it is a customized product, it will take about 15-20 days.

Q3: What is your payments terms?

A3: We can accept 30% deposit, 70% balance to be against the BL copy or by LC, or other payment terms.

Q4: Can we visit your company?

A4: We warmly welcome your arrival.

Product Tags:

aluminum oxide ceramic balls


alumina grinding media balls

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