AMALGAM CELL TECHNOLOGY
The widest application of dimensionally stable metal anodes is in the chlorine-caustic industry where mixed metal oxide DSA® coatings are used almost exclusively worldwide. Chlorine producers take advantage of the high current density operation that mercury cells attained.
- Anode structures are designed and fabricated specifically for the customers’ cell, based on dimensions and operating conditions
- The use of DSA® has resulted in significant reduction of power consumption as well maintaining high and constant faradic efficiency
- Additional savings are evident from stable and predictable cell voltages over the life cycle of DSA® and the ability to operate at higher current density than graphite anodes
- The ability to operate the DSA® anode at a very low electrodic gap over the long term particularly if the anodes are operated with Automatic Control Protection Device–ACPD
- The elimination of some hazardous plant operations associated with the use of graphite anodes, increased production, and product quality
- The longer life cycle reduced the frequency of interventions by maintenance personnel, decreasing mercury exposure to workers and to the environment
De Nora provides anodes for different types of mercury cells under a lease or purchase program. Services for the anode structures include repair work and renewal of the DSA® coating. Technical assistance is available to train and support customers in the installation, use and operation of cells and anodes.