Oxygen
All our Anodes sustaining processes resulting in a Cathode product belong to this family. In most cases the Anode reaction leads to oxygen development as the electrolysed solution is based on sulphuric acid and sulphates. This process is very diversified and often involves a higher level of technology and know-how which we have developed over the years. We provide coated Titanium Anodes for:
- Water Treatment
- Copper Foil
- Electro tinning
- Surface FinishingMetal electrowinning from Sulphates and/or Nitrates
- Continuous aluminum strip anodising liquid contact
- PCB via fill copper plating
- Steelcord plating for tyres
Case Studies
Development of MMO anodes for trivalent chromium plating processes
Chromium plating, which provide a bright, aesthetically pleasant protection from both corrosion and
mechanical wear, is certainly among the most widespread diffused surface finishing technologies. The
classical process is focused on the electrolytic reduction of hexavalent chromium ions. However, due to the
unambiguous recognition of the latter as a toxic and carcinogenic agent, its use is fading away due to the
way more stricter regulations. A greener alternative process based on trivalent Cr ions is currently gaining
more and more attention from both the scientific and industrial communities. Such a process has
promising perspectives but on the downsides it brings up a whole new series of scientific-technological
issues. At Chemical Newtech we are deeply committed in investigating the electrochemical mechanisms
which are involved in the Cr(III) plating process. The purpose is that of tuning all the single anode
manufacturing parameters in order to hinder to the best extent the side reactions that yield the toxic
hexavalent ions.
Documentation
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