Membranes

Lines for the production of membranes. The area of membranes includes applications for filtration and separation. KROENERT makes exclusive use of flat diaphragms.

Membranes are used for the following purposes:

  • for drinking water production (osmosis membranes)
  • for the separation of impurities from liquids (dialysis for blood purification, filtration of beverages in the food industry)
  • for the separation of impurities from gases (catalytic converter in cars, gas filtration in gas extraction by fracking, waste gas purification in industry)
  • for the separation of ions in a power accumulator (lithium-ion battery) or a fuel cell

Depending on the application, there are different types of membranes, each of which requires a different manufacturing process.
 

Examples of applications

Battery separators

Coating of PE membranes with ceramic layers for battery separators as a heat-resistant protective layer

Gas filtration membranes

The permeable PET membrane is coated with a functional layer that can filter out certain chemical components when gases pass through

Osmosis membranes

A wet-chemically applied functional layer is precipitated in baths via coagulation processes, cross-linked and then dried. The membrane produced in this way can be used to separate salt from the water by ion exchange or one-sided diffusion of water through the membrane