1. Titanium anode concept
Titanium anodes are also called titanium-based metal oxide coated anodes (MMO), also called DSA anodes. They use titanium as a substrate (plates, rods, meshes, tubes, wires, etc.). The layer makes it have good electrocatalytic, electrical conductivity, oxidation resistance and other characteristics.
2. Classification and specific technical parameters of titanium anode coating:
A. Ru-Ir coatIng:
Coating material: RuO2 + IrO2 + X
Temperature range: <60 ℃
Current density: <2000A / m2
Fluoride content: <50mg / L
Precious metal content: 8g / m2-20g / m2
PH value: 1-12
Base metal: Gr1, Gr2 titanium
Titanium anode shapes: plates, tubes, nets, rods, wires, machined parts
B. Ir-Ta coating:
Coating material: IrO2 + Ta2O5 + X
Temperature range: <60 ℃
Current density: <12000A / m2
Fluoride content: <50mg / L
Precious metal content: 8g / m2-40g / m2
PH value: 1-12
Base metal: Gr1, Gr2 titanium
Titanium anode shapes: plates, tubes, nets, rods, wires, machined parts
C. Platinum coatIng:
Coating material: Pt
Temperature range: <80 ℃
Current density: <5000A / m2
Fluoride content: <50mg / L
Precious metal content: ≥20g / m2 / um
PH value: 1-12
Base metal: Gr1, Gr2 titanium
3. Application of titanium anode
Titanium anodes are widely used in chemical, metallurgy, water treatment, environmental protection, electroplating, electrolytic organic synthesis and other fields.
Ruthenium coating:
Sodium hypochlorite generator, cooling circulating water descaling, acidic oxidation potential water, sanitary disinfection of swimming pool water, electrolysis seawater for hydrogen production, electrocatalytic oxidation industrial wastewater treatment, hydrometallurgy, sterilization and disinfection of breeding water, electrophoretic coating, EDI, EDR electrodialysis , Sludge dehydration, etc.
Iridium coating:
Electroplating, hydrometallurgy, electrolytic copper foil, HHO energy storage battery, organic electrolytic synthesis, PS plate liquid conducting electrode, cathodic protection, etc.
4. The use of titanium anode:
Do not scratch the precious metal coating
The electrolyte does not contain fluoride ion, bromide ion, cyanide ion
Prevent short circuit
Discontinued microcurrent protection
The electrolysis temperature should not be too high
Excessive current density exacerbates the reaction and shortens anode life
Slowly load current when starting, the same as when stopping
Stable current and voltage
5. Advantages of using titanium anode
a. The anode size is stable, and the electrode spacing does not change during the electrolysis process, which can ensure that the electrolysis operation is carried out under the condition that the cell voltage is stable.
b. The working voltage is low, the power consumption is small, and the consumption can be reduced by about 20%.
c. It can overcome the problem of graphite anode and lead anode dissolution, avoid pollution of electrolyte and cathode products, and improve product quality.
d. Can increase the current density. For example, in the production of chlor-alkali by the diaphragm method, the current density of the graphite electrode is 8A / dm2, and the titanium anode can be doubled to 17A / dm2, so that the output can be doubled under the same conditions in the electrolytic plant and electrolytic cell.
e. Strong corrosion resistance, can work in many electrolytic media with strong corrosion and special requirements.
f. It can avoid the short circuit problem after the lead anode is deformed, thereby improving the current efficiency.
g. The base titanium material can be used repeatedly.
If you need to know more about the knowledge of titanium anodes, or looking for a manufacturer of titanium anodes, please contact us. Our titanium anode processing advantages: more than ten years of manufacturing and export experience, we can process titanium anodes with complex shapes according to drawings. The produced titanium anodes have strong electrocatalytic activity, high current, excellent design, firm welding, and corrosion resistance.
Website: www.bjhighstar.com
Email: anber@bjhighstar.com
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