Inert ceramic balls DURANIT® D-99, 5/8, VFF

Material

Ceramics

Nozzle type

Inert balls

Country of Origin

Germany

Specific surface area, m2/m3

220

Void factor, %

40-45

Analogue for

Pall Ring Company, MACH Engineering LLC, Munters, Christy Catalytics, Koch-Glitsch, AMACS, Ultimo Engineers, MTE, НКС DOLSIN

Producer

VFF

AL2O3 content

~ 99%

Diameter, mm

15-17

Max.temperature, C

1 800

All features

Pour density, kg/m3

2000-2200

Description

DURANIT®- ideal compressive strength for maximum operational reliability. Processes in which catalyst calipers are used in accordance with international specifications cover a whole range of thermal and catalytic transformations of the substance: Duranit® inert balls and other forms can also be used for other purposes, for example, in high-temperature filtration to separate solid and liquid particles from hot exhaust gases.
Applications: alkylation, catalytic reforming, dehydrogenation, hydrotreating, desulfurization, isomerization, catalytic cracking, power forming, catalytic conversion, thermal cracking, catalytic oxidation and other processes.

Chemical composition:
SiO2 99%
Fe2O3 ~ 0,1%
CaO + MgO ≤ 0,2%
K2O + Na2O ≤ 0,4%

Characteristics:
Specific surface area according to the BET method <0.1 m2 / g
Mohs hardness ~ 9
Specific heat: ~1.1 kJ•(kg * K)
Thermal conductivity: ~15 kJ / (M * h * K)
Thermal expansion: ~7•10-6 1/ K
Maximum temperature: ~1800°C
Water absorption (DIN EN 993-1): 2-6%