Print

Membranes

Ceramic membranes for micro-, ultra- and nanofiltration.

Competences

Competences

  • Manufacturing of ceramic supports and membranes
  • Supply of membrane elements and modules
  • Membrane and process engineering
  • Application-oriented membrane screening
  • Pilot and field tests from micro- up to nanofiltration
  • Product service

Membrane materials and pore sizes

Membrane materials and pore sizes

  Membrane Material Pore Size Cut-off* Porosity
Microfiltration
inopor® mikro
α-Al2O3 800 nm
600 nm
400 nm
200 nm
100 nm
70 nm
  40 % - 55 %
TiO2 800 nm
400 nm
250 nm
200 nm
100 nm
 
ZrO2 110 nm  
Ultrafiltration
inopor® ultra
γ-Al2O3 10 nm
5 nm
20 kDa 
7500 Da
30 % - 55 %
TiO2 30 nm
10 nm
5 nm
100 kDa
20 kDa
8.5 kDa
ZrO2 3 nm 2 kDa
Nanofiltration
inopor® nano
TiO2 1,0 nm
0.9 nm
LC**
750 Da
450 Da
200 Da
30 % - 40 %

Inopor offers microfiltration membranes designed for abrasive conditions:

Membrane material Pore Size Porosity
α-Al2O3 200 nm-S
100 nm-S
70 nm-S
40 - 55 %

The ceramic support is made out of α-Al2O3. Our membranes are available in lengths of 100 mm up to 1200 mm.

* Because of technological developments related to the products, systems, and/or services described herein, the data and procedures are subject to change without notice. Please consult your inopor representative or visit www.inopor.com to verify that this information remains valid.
** As end use conditions can vary, it is the users responsibility to verify compatibility with their specific use conditions.

Geometries

Geometries

  Outer
Diameter
Channel
Diameter
Channels spec.
Membrane
Area
Membrane Area
(1200 mm
length)
spec.
Crossflow
Velocity
item [mm] [mm] number [m2

m
]
[m2] [m3/h

m/s
]
aa AA 10.0 7.0 1 0.022 0.026 0.14
ab AB 20.3 15.5 1 0.049 0.058 0.68
ba BA 25.0 6.0 7 0.132 0.158 0.71
la LA 25.0 7x uni
1x 6
8 0.188 0.193 0.77
ca CA 25.0 3.5 19 0.209 0.251 0.66
cb CB 41.4 6.0 19 0.358 0.430 1.93
ga GA 25.0 3.0 31 0.315 0.351 0.85
mc MC 41.0 3.8 37 0.490 0.576 1.84
eb EB 26.4 2.0 61 0.426 0.512 0.85
ec EC 25.0 2.0 61 0.383 0.460 0.69
ee EE 41.0 3.4 61 0.722 0.867 2.43
ha HA 41.0 2.0 163 1.098 1.317 2.11

Depending on the type of end sealing the outer diameter might be bigger. Glass and ceramic could be chosen for end sealing of the ceramic support. The outer diameter will increase as followed:

  • glass: outer diameter + 0.3 mm
  • ceramic: outer diameter + 0.1 mm

Charts & Images

Charts & Images

Pore size distribution

Pore size distribution (Hg-porosimetry or N2-sorption resp.)

Fracture of membrane

Fracture of a TiO2-UF-membrane (SEM)