DIAPHRAGM TECHNOLOGY

In the 1970’s, expandable anodes were introduced which produced the low voltage of a “diaphragm-gap” cell. Modified asbestos diaphragms were invented which give a much longer life with a stable efficiency. Over the years De Nora continued this tradition of innovation by evaluating each component of a diaphragm cell for better performance. In this way, De Nora has now developed new alternatives to the standard expandable anodes. The LVA™ offer real structural saving of 70mV in operation. ESA™ anodes have shown an additional power consumption savings when installed in combination with our non-asbestos technology.


De Nora, offer also advanced coating monitoring service. Each recoating local company throughout the world offers low cost and long life recoating options when required and offers a broad range of recoating options remesh, mesh recoating and mini-mesh recoating.


PMX® for Diaphragm

De Nora’s PMX® is a non-asbestos separator that can extend diaphragm cell life. PMX® provides many benefits in diaphragm cells and a key feature is the product carries reduced liability since it is not hazardous.

Removal is easy and disposal of the material poses no environmental hazards. De Nora is also working on several modifications that could dramatically extend the life of the diaphragm that would improve the economics for diaphragm plants.

De Nora is constantly evaluating new formulations that could provide significant economic benefit to many of the diaphragm plants using asbestos containing separators. This becomes more beneficial as energy prices become higher which assist plants in cash margin. PMX® Diaphragms Summary Direct replacement for asbestos and polymer modified diaphragms.

  • Direct replacement for asbestos and polymer modified diaphragms.
  • Non-polluting
  • Allows continuous operation of diaphragm plants without the problems inherent to asbestos
  • Chemically inert and ultra-stable
  • Can be reclaimed, in-situ, to original condition
  • Long operating commercial lives; averaging over three years, with over 11 years demonstrated
  • Requires only minor modifications to existing depositing systems.
  • Easy diaphragm removal
  • Over 1000 commercial diaphragms operated