Platinum Titanium Anode
1. The titanium electrode has a black surface after oxidation and sintering. The uncoated surface is blue and has no electrode performance. The black side corresponds to the cathode.
2. Once the titanium electrode substrate is pickled, all subsequent production, processing and use procedures must be carried out strictly and carefully. Wear clean hands when transporting
The sleeve is stuck at both ends or edges of the anode, preferably in contact with the uncoated part, and the coated surface is strictly
Any foreign objects are not allowed to scratch. Note: The titanium matrix itself is not conductive, its
The outer layer of precious metal oxide coating has electrocatalytic activity, electrical conductivity and oxidation resistance, but its thickness is only about 30 microns.
If it is damaged, in the electrolysis process, the electrode will first corrode from the damage, which will affect the use quality and effect of the entire electrode.
3. The electrolyte maintains stability, especially can not contain cyanide ions and fluoride ions, these impurities will seriously corrode the titanium matrix;
4. Add a filter device before the electrolyte enters the electrolytic cell, and cannot contain metal particles with a diameter greater than 0.1mm to prevent excessive aggregation and lead to anode and cathode.
short circuit.
5. When electrolytic recovery of copper, nickel, gold, silver, diamond and other metals, the cathode attachment should not be too thick to prevent the electrode spacing from being too small or the formation of sharp metal.
Cathode and anode short-circuit breakdown.
6. The distance between cathode and anode can be set according to actual production, generally 5-25mm. Generally speaking, the pole distance will increase the voltage drop, but it should not be too small, otherwise the negative
The cathode scale generated on the surface of the electrode is easy to cause the short circuit of the electrode plate;
7. Avoid using the reverse pole. Once the precious metal oxide coating is used as a cathode, the surface undergoes a reduction reaction and is easily converted into a metal element, which cannot be
The effective bonding of the titanium base causes the coating to peel off.
8. It is not advisable to soak in the solution in the power-off mode for a long time during shutdown, and it is best to load a small current of about 5A to protect the plate.
9. During shutdown or other maintenance conditions, add dilute acid or clean the surface of the electrode with clean water, and do not wash it with nylon or mechanical substances.
10. The temperature of the electrolyte should not be too high during operation, the ideal temperature is 25-40°C, and a heat exchange device can be added to maintain the best use environment for the electrode.
11. The normal working current density is 2000A/m2; if the current is too large, the reaction is too intense and the life of the anode is shortened.
12. When starting up, load the current to the electrolytic cell step by step, do not raise it to the position at one time, and the same is true when it is stopped.
13. Keep the anode clean during production and use, so as not to be contaminated with oil or other attachments, so as not to affect the electrolysis effect and the life of the electrode.
