Manufacturer of DSA® electrodes, electrolysis systems and water treatment technologies for industry and municipalities.
Industrie De Nora S.p.A.
Milan (headquarters) · Rodenbach · Stuttgart · Hanau · Concord, Ohio · Philadelphia · Tampa · Sugar Land · Sorocaba · Kundaim, Goa · Abu Dhabi · Dubai · Tamworth · Suzhou · Jinan · Shanghai · JakartaNew on Amplifa
About De Nora
Industrie De Nora S.p.A. is an Italian company headquartered in Milan and listed on the Euronext Milan stock exchange, active in the field of applied electrochemistry since 1923. The company manufactures catalytically coated electrodes (DSA® anodes and cathodes) based on titanium and nickel, electrolysers, skid-mounted systems, separators for chlor-alkali electrolysis as well as complete water treatment plants including electrochlorination, ozonation, UV disinfection and filtration. Production encompasses powder catalyst synthesis, catalytic coating, machining of metals, component assembly and system integration. Customer industries include chlor-alkali, electronics/printed circuit boards, mining and metal refining, municipal and industrial water treatment, marine/offshore and green hydrogen. De Nora operates 13 production sites in Germany, Italy, the USA, Brazil, Japan, China and India with more than 1,000 employees at the plants; all plants are certified to international quality standards and equipped with state-of-the-art coating lines and metalworking machinery. In Germany, sites are located in Rodenbach, Stuttgart and Hanau.
- Site
- Milan
- Processes
- DSA® electrodes for chlorine production (chlor-alkali electrolysis), Cathodes for caustic soda production, Electrode repair and recoating, Catalytic coating of electrodes / powder catalyst synthesis, Electrodes for Alkaline Water Electrolysis (AWE), Gas Diffusion Electrodes (GDE) with oxygen-depolarized cathode, Manufacture of electrolysers and skid-mounted systems / module assembly, Production of non-asbestos separators (diaphragms) for chlor-alkali
- Materials
- Titanium, Nickel, Copper, Nickel (electrolytic refining), Cobalt, Mixed metal oxides (insoluble anodes), Nano-ceramic filter media (BioGill), Mixed Metal Oxides
- Certificates
- International quality standards (all plants certified), International quality standards
- Founded
- 1923
- Employees
- 2000+
- Industries
- Chlor-alkali, Electronics/printed circuit boards (PCB), Mining & metal extraction/refining, Municipal water treatment, Industrial water treatment, Water reuse & resource recovery
- 01
Powder catalyst synthesis
- 02
Machining of metals (titanium, nickel)
- 03
Catalytic coating (DSA® mixed metal oxides)
- 04
Manufacture of separators (diaphragms)
- 05
Component and module assembly
- 06
Electrolysers and skid-mounted systems
- 07
Commissioning and lifecycle support
Materials & Processes
Titanium
Structural material for soluble electrodes in chlor-alkali and electrochlorination plants, also in the re-coating service.
Nickel
Base material for cathodes in caustic soda production and for regenerable electrode structures.
Copper
Material for applications in electrolytic refining and copper foil deposition.
Cobalt
Raw material for electrolytic metal extraction and refining of Cu, Ni and Co.
Mixed Metal Oxides
Insoluble catalyst coating for insoluble anodes (DSA® technology).
Sites
Milan
ITHeadquarters, several De Nora companies, R&D
- Materials
- Titanium, nickel
- Coating lines
- Metalworking machinery
Rodenbach
DEDe Nora Germany
Stuttgart
DEDe Nora Water Technologies – Germany
Hanau
DEShotec
Suzhou
CNDe Nora Elettrodi Suzhou
Concord, Ohio
USDe Nora Tech
Inside the production
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| DSA® electrodes for chlorine production (chlor-alkali electrolysis)Engineering | – | – | – | – | Titanium (structure, implied) |
| Cathodes for caustic soda productionEngineering | – | – | – | – | Titanium, Nickel |
| Electrode repair and recoatingSurface | – | – | – | – | Titanium, Nickel |
| Catalytic coating of electrodes / powder catalyst synthesisSurface | – | – | – | – | Titanium, Nickel, Mixed metal oxides |
| Electrodes for Alkaline Water Electrolysis (AWE)Engineering | – | – | – | – | – |
| Gas Diffusion Electrodes (GDE) with oxygen-depolarized cathodeEngineering | – | – | – | – | – |
| Manufacture of electrolysers and skid-mounted systems / module assemblyAssembly | – | – | – | – | – |
| Production of non-asbestos separators (diaphragms) for chlor-alkaliPlastics | – | – | – | – | – |
| Water treatment: electrochlorination from seawater/brine, ozone, UV, AOP, chlorine dioxide,Engineering | – | – | – | – | – |
| ClorTec® on-site sodium hypochlorite generation (5,000+ units)Engineering | – | – | – | – | – |
| CECHLO-MS on-site high-concentration hypochlorite generation (400+ installations)Engineering | – | – | – | – | – |
| Capital Controls® ozone generatorsEngineering | – | – | – | – | – |
| Capital Controls® UV disinfection systems / C3 Series UV / Sentinel® UV / RAYOX® AOPEngineering | – | – | – | – | – |
| Chlorine dioxide generators (Capital Controls® / OXICORE™)Engineering | – | – | – | – | – |
| Capital Controls® gas feed systems & scrubbersEngineering | – | – | – | – | – |
| DE NORA TETRA® media filtrationEngineering | – | – | – | – | – |
| Hydro-PAQ™ high-rate clarifierEngineering | – | – | – | – | – |
| BioGill® trickling filters for wastewater treatmentEngineering | – | – | – | – | nano-ceramic filter media |
| OMNIPURE™ electrolytic marine/offshore wastewater treatmentEngineering | – | – | – | – | – |
| SANILEC® / SEACLOR® seawater electrochlorinationEngineering | – | – | – | – | – |
| MIOX® on-site mixed oxidant generationEngineering | – | – | – | – | – |
| SORB systems for PFAS/arsenic removalEngineering | – | – | – | – | – |
| Desalination / UHPRO high-pressure reverse osmosis / demineralization (RO, ion exchange, EDI,Engineering | – | – | – | – | – |
| Demineralized water system / UPW ultrapure water systemsEngineering | – | – | – | – | – |
| Enso system for electrochemical salt splittingEngineering | – | – | – | – | – |
| Anodes for PCB vertical and horizontal plating lines, periodic pulse reverse plating,Surface | – | – | – | – | Copper (deposition) |
| Anodes for steel electrogalvanizingSurface | – | – | – | – | Steel, Zinc (galvanizing) |
| Anodes for trivalent chromium plating (GreenChrome™)Surface | – | – | – | – | Chromium (coating) |
| Anodes for metal extraction & refining (Cu, Ni, Co)Surface | – | – | – | – | Copper, Nickel, Cobalt |
| Anodes for chlorate production, hydrochloric acid electrolysis, cathodic corrosion protectionSurface | – | – | – | – | Mixed metal oxide anodes (insoluble) |
| Upgrade, refurbishment and retrofit services for existing installationsAssembly | – | – | – | – | – |
| Electrode recycling and recovery (circularity)Engineering | – | – | – | – | Titanium, Nickel |
2 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| Coating lines (state-of-the-art coating lines) | De Nora | – | – | – | 13 production sites (Germany, Italy, USA, Brazil, Japan, China, India) |
| Metalworking machinery | De Nora | – | – | – | Production sites |
Additional services
Quality
All De Nora plants are certified to international quality standards. Every electrode is 100% leak-tested to ensure mechanical integrity.
| Evidence | All production sites |
|---|---|
| International quality standards |
History
- 1923
Founded by engineer Oronzio De Nora in Italy
- 1969
Start of international expansion, initially Japan, later Singapore, Brazil, India, China, Germany
- 2015
Entry into the water treatment and filtration sector
- 2021
Joint venture with ThyssenKrupp: contract for electrolysis systems for the world's largest green hydrogen plant (Neom, Saudi Arabia)
- 2022
IPO on Euronext Milan; revenue €852.826 million, net income €89.665 million