KR20020061136A - a manufacturing of electrolytic arrangement for see water technigue - Google Patents

Abstract

PURPOSE: A method for manufacturing a platinum anode with decreased surface defects for seawater electrolysis facility is provided. CONSTITUTION: The method comprises the steps of material processing; supersonic degreasing; first rinsing with pure water for three times; pickling; second rinsing with pure water for three times; electrodegreasing; third rinsing with pure water for three times; drying; plasma coating; pulse platinum plating; forth rinsing with pure water for three times; drying; and heat treatment.

Description

Manufacturing method of the platinum anode for seawater electrolytic facility {a manufacturing of electrolytic arrangement for see water technigue}

The present invention relates to a method of manufacturing a platinum anode for seawater electrolysis equipment, and more specifically, to obtain cooling water in power plant equipment or other large facilities with seawater (sea water), a seawater electrolysis facility using platinum anode is required. Platinum anode used in electrolysis provides better quality platinum anode than existing products to maximize the efficiency of seawater decomposition and seawater electrolysis to maintain long life by reducing self-defect of expensive product, platinum anode The manufacturing method of the platinum anode for equipment.

The seawater electrolysis facility refers to a facility used for electrolyzing sodium hypochlorite used in seawater to remove cooling water using seawater, that is, marine life attached to a cooling water pipe. In general, a platinum-based catalyst is commonly used in the electrolysis.

Therefore, conventionally, a composite material is added to platinum to form a paste, and then a platinum group compound on paste is applied to Ti several times, followed by drying at high temperature.

However, such a conventional method causes a lot of cracks on the surface due to thermal stress, so that the seawater has a very limited ability to decompose, and it cannot decompose a large amount of seawater in a short time, and has a long lifespan. There was a problem.

Therefore, in the present invention, the invention has been devised to eliminate the above-mentioned problems, and the plating efficiency can be further maximized by applying the pulse plating method in the electroplating method, while reducing defects such as cracks by applying the plasma cleaning method in the pretreatment process. The main focus is on the manufacturing method of platinum anode, which can provide more excellent quality, and completed as the technical problem.

1 is a platinum anode manufacturing process chart of the present invention

2 is a property evaluation graph comparing the conventional paste method and the electroplating method of the present invention

Platinum anode manufacturing method for seawater electrolysis facility of the present invention to achieve the above technical problem is described in detail based on the accompanying manufacturing process chart and various measurement results table as follows.

First, prepare and process Ti in the form of plate, degrease by using ultrasonic wave in degreasing liquid at about 50 ℃ to remove foreign substances on the surface, and then rinse three times using pure water in the flow type washing tank. .

After washing with water, the surface is pickled using an acid of sulfuric acid and washed three times in a pure water washing tank, followed by electrolytic degreasing by applying a potential of several volts.

Then, in order to remove this substance from the surface, the degreaser was degreased using ultrasonic waves, and then plasma treated in a vacuum, and then surface treated. Then, the pulse rectifier modulated the current into pulses and plated in a platinum plating bath. Platinum is plated on the material by applying pulsed electricity between the material and platinum.

After the end of the electroplating is carried out three times pure water washing once again, and then dried the surface through a dryer, and finished by heat treatment at low temperature to improve surface modification and physical properties.

In the above process, platinum is plated on the material by applying pulse-type electricity, but instead of the pulse plating process, DC plating is used to electrically plate platinum on the material by hanging a cathode on a material to be plated and an anode on platinum. Even if the plating process is applied or the platinum is coated in the plasma atmosphere instead of the platinum plating process, it is compared with the existing method (preparation of platinum group compound, painting with the brush on the surface of the material and heating in the heat treatment furnace). It can have a significant effect.

Platinum anode manufacturing method for the seawater electrolytic facility of the present invention having the configuration and action as described above is taking a pulse type electroplating method in the platinum plating process, and plasma cleaning in the cleaning process while performing ultrasonic electrolytic degreasing in the pretreatment process. As a result, it is possible to provide a high quality platinum anode.

That is, because the plating is performed electrically, the plating layer is not only uniform, but the thickness of the plating layer can be adjusted, and all working conditions and material components can be converted into data to reproduce and adjust physical properties, as well as to develop new technologies in the future. It is expected to make a significant contribution.

In addition, a large amount of seawater can be processed quickly with excellent resolution, and the surface defects can be reduced to significantly increase the lifetime of the platinum anode, and due to the clear interface of the platinum layer, the use time is predicted and the time of replacement is correct. It can be very helpful in maintaining seawater decomposition facilities, and it can be reused and recycled by peeling off the plating layer to reduce the waste of materials and to suppress the generation of wastes. Invention.

Claims (3)

Material preparation / processing process, ultrasonic degreasing process, pure water washing process 3 times, pickling process, pure water washing process 3 times, electrolytic degreasing process, pure water washing process 3 times, drying process, plasma cleaning process, platinum plating process, pure water washing 3 A method for producing a platinum anode for seawater electrolytic installation, characterized in that each of the step, drying step, heat treatment step. The method of claim 1, The platinum plating process is a method of producing a platinum anode for seawater electrolytic installations, characterized in that the purls plating platinum plating method to apply a puls-type electricity between the material and the platinum. The method of claim 1, Platinum anode for seawater electrolytic installation, characterized in that the platinum plating process by the plasma coating method.