td ceramic membrane

SpinTek Ceramic™ Td Membrane

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tio2 membranes in flat sheet, disk,"half moon," and 1′ tubular
TiO2 Membranes in Flat Sheet, Disk,"Half Moon," and 1” Tubular

Unique Ceramic Membrane

The SpinTek Td ceramic membrane offers a new tool for the separation of micro-sized solids from liquid, gas and air influent. The unique Td membrane starts as a 185 micron thick stainless steel substrate and then a thin (15 micron) nanopowder coating of ceramic is bonded to the substrate. The ceramic coating has a smooth surface that resists fouling which occurs with conventional "depth" type ceramic membranes. The Td ceramic membrane is available in pore sizes as small as 0.07 microns and as large as 0.8 microns. The base ceramic of the Td membrane is titanium dioxide (TiO2) manufactured from nano-sized ceramic powders. This can be blended with either zirconia or with a composite of alumina and silica dioxide depending on the intended service.

ceramic membrane

Ceramic Membrane Sizes

The SpinTek Td ceramic membrane is available in square sheets 285 mm (11.2′) x 285 mm (11.2′). Larger sheets are available by precision welding standard Td sheets together. Standard circular and rectangular configurations are available and custom configurations can be laser cut to meet most needs. The Td ceramic membrane can also be rolled to a minimum dimension of 10 mm (3/8′) without damaging the membrane surface.

System Configurations

The Td ceramic membrane can be used in the SpinTek ST-II and Speedy rotary microfiltration applications. Our engineers can also custom design and fabricate specific membrane modules for most applications.

Key Benefits

  1. 0.07 to 0.8 micron pore sizes can be specified
  2. 100% membrane stability in highly alkaline and solvent environments
  3. Operationally stable to 300°C in air and up to 800°C in an inert or reducing atmosphere
  4. Smooth membrane surface resists fouling
  5. Tight mean pore diameter for precise filtration
  6. Excellent performance in oil/water separation applications
  7. Titanium substrate available
  8. Resistant to bacterial attack
  9. Can be sterilized with live steam

ceramic membrane magnified differential flow distribution
Scanning Electron Microscope (SEM) Image The Coulter Porometer II analysis demonstrates the tight pore distribution of the SpinTek Td 0.15 micron membrane with a maximum pore of 0.182 mm and a minimum of 0.123 mm with 34 x109 pores/cm2 between maximum/minimum.

SpinTek Ceramic™ Td Membranes

Pore Size Water Flow Gas Flow
l/h.m2 gpd/ft2 l/h.m2 scfm/ft2
0.07 1,000 590 75,000 4.1
0.10 2,200 1,300 140,000 7.7
0.15 2,500 1,475 160,000 8.7
0.20 3,800 2,240 190,000 10.4
0.40 5,500 3,250 200,000 10.9
0.80 7,000 4,125 250,000 13.7

Water flow rate is distilled water at 2.0 kg/cm2 (28.4 psig) TMP. Gas flow rate is Argon at 0.5 kg/cm2 (7.1 psig) TMP.

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