MMO Ti Anode Electrode
Mixed Metal Oxide (MMO) Activated Ti Anodes / Electrodes are made by Coating titanium with a combination of metal oxides which are electrically conductive. The titanium undergoes multiple thermal treatments at elevated temperatures to gain good bonding properties with the coating elements. This increases the lifetime of anodes.
Possible applications of Titanium Anodes / Electrodes: Electroplating, Electrowinning, Electro Galvanizing, Electro Flocculation, Cathodic Protection, Water Electrolysis, Electrochlorination, Electrodialysis, Sea Water Chlorination, Sewage Treatment, Chloroalkali Cells – Diaphragm / Mercury / Membrane cells, Chlorate Cells, Hydrogen Cells, Iodate cells, Bromate Cells, Per Chlorate cells, Sodium Chlorate Cells, FUEL Cells.
Electroplating
Electroplating is the process of coating a metal object with a thin layer of another metal by means of electrolysis. Electroplating is used to give metal objects a better appearance or to protect them from corrosion, wear, or rust.
In the electroplating industry, titanium anodes are mostly used and it has become one the most important component in the field (Click To Find More Information About Titanium Anode For Metal Electroplating )
- Electro galvanizing (zinc plating), including steel strip plating
- Precious metal plating (gold, silver, palladium, etc.)
- Hard chromium plating
- Nickel plating
- Tin plating (steel strips)
- Copper plating, copper foil production, copper foil treatment, and PCB manufacturing
- Aluminum anodizing in liquid-contact-cell.
The principle of metal plating is almost identical for all applications. The metal to be plated is dissolved in the electrolyte and the object to be plated is cathodically polarised. With the anodically polarised anodes, the electrical loop is closed. The counter-reaction in the plating bath is oxygen evolution at the anode surface.
The advantage of Titanium anodes over non-inert anodes, such as Graphite anodes, is the constant anode-cathode distance (inter-electrode gap) throughout the lifetime of the anodes. Where the inter-electrode gap increases when Graphite anodes slowly dissolve, inert Titanium anodes keep both voltage and product quality constant.
Besides Titanium and Graphite, Lead anodes are also used. Lead dissolving in the electrolyte causes large problems from an environmental point of view, problems that can be avoided by using Titanium anodes.
Oxygen-evolving Titanium anodes also have lower anodic operating potentials and hence provide power savings.
Electrowinning Anodes
Our anodes are gaining acceptance in the electrowinning industry. Until recently, lead anodes were the accepted anodes of choice for electrowinning applications. However, as industries become more environmentally conscious, alternate technologies are being sought. To that end, YJTi developed a titanium Elade anode for Nickel and copper electrowinning. We also provide a practical alternative to lead anodes for zinc, and cobalt electrowinning. The advantages of YJTi’s technologies over conventional lead anodes are their long life, clean operation, and power savings.
Metal Recovery Anodes
In order to meet the environmental challenges that electroplaters face, YJTi developed a system to recover metals from wastewater streams. We continue to support the metal recovery industry and manufacture anodes for other metal recovery systems to meet customer-specific needs.
Electrolysis Systems
Increasing cost pressures in waste disposal services have led to the rapid development of processes with which the metal flux from heavy metals containing process and wastewater can be drastically reduced, thus contributing to a reduction in the amount of sludge containing heavy metals which have to be deposited, in turn reducing the burden on the environment.
Water Treatment
Our anodes are used in processes such as potable water treatment, and treatment of process water and wastewater, but also for recovery and separation of valuable or environmentally hazardous materials.
For instance:
Electrochemical recovery of metals (Ni, Cd, Cu, Zn, Sn, Ag, Au, etc.);
Direct or indirect oxidation and break-down of organic contamination or cyanide;
Removal of small solid particles by means of electro-flocculation;
Electrodialysis, desalination of process water, and recovery of several materials;
Softening of water, de-scaling;
Membrane processes.
The different anodes, used in these processes and systems, are very often designed and developed together with our customers or with specialized research institutes. Our engineers are more than happy to assist you with their knowledge and experience in your search for the ideal anode for your specific application.