Q:Excuse me, why does the graphite electrode flake when electrolyzed salt water is used?

Aqueous solution electrolytic cell has no diaphragm and diaphragm. Two kinds of commonly used diaphragm electrolyzer. In chlorate production and mercury method to produce chlorine and caustic soda, with no diaphragm electrolyzer. Try to increase the surface area per unit volume, can improve the production strength of electrolytic cell. Therefore, the modern electrode diaphragm electrolyzer the vertical components due to internal electrolysis. The material and structure and installation of different performance and different characteristics.

Q:Synthesis techniques of carbon nanotubes

Carbon nanotube discharge using graphite electrode is one of the earliest studies in various synthetic techniques. The researchers did a lot of work in optimizing arc discharge for carbon nanotubes. In recent years, in addition to people by adjusting the current and voltage, pressure and velocity change, change the electrode composition, improved electrode feeding mode optimization of arc discharge process, but also through changes the arc medium, simplified arc device. In the process of preparing carbon nanotubes, arc method is mature by changing the arc discharge conditions, catalyst, electrode size, feed mode, the distance between the poles and the raw materials. The carbon nanotubes formed by arc method are straight and wall (multi wall or even single wall). But the production rate is low, the arc discharge process is difficult to control, and the preparation cost is too high. The industrial scale production needs to be explored.

Q:National standard for graphite electrodes

Page 7 the international standard specifies the shape, dimensions and tolerances, technical requirements, test methods, packaging, marking, storage, transportation and quality certificates of graphite electrodes. This standard applies to high quality petroleum coke, asphalt, coke as the main raw material, through molding, roasting, impregnation, graphitization and mechanical processing made of, power supply arc furnace as conductive material of ordinary power graphite electrode. Common power graphite electrode GB

Q:What is the difference between pyridine type nitrogen and graphite type nitrogen?

The fine structure graphite is the raw material used in the production of graphite electrode. The particle size is relatively small, generally below 0.5.

Q:What is the role of the Pt electrode? What is the difference between the graphite electrode and the graphite electrode?

Carbon electrodes, however, are less likely to be less controllable because of their microstructure, or have some effect on the electric field, if they are sensitive signals

Q:How can the graphite powder be processed into high quality carburizing agent? Thank you

So that impurities on the high, so basically can not be processed into so-called quality, and can leave a contact, discuss each other

Q:Use of graphite in steelmaking

Application of graphite electrode in smelting, alloy steel, iron alloy, graphite electrode, the strong current through the melting zone, the arc electrode into the electric furnace, the electrical energy into heat, the temperature rises to 2000 degrees Celsius, so as to achieve the purpose of melting or reaction.

Q:What is the composition of petroleum coke and what is its use?

Medium sulphur and common cooked coke; used in large quantities for aluminium smelting. High sulfur, ordinary coke is used in chemical production, such as the manufacture of calcium carbide, silicon carbide, etc., but also as a metal casting and other fuels. Most of the petroleum coke produced in China belongs to low sulfur coke, which is mainly used for smelting aluminium and making graphite.

Q:What's the use of carbon?

Oxidation resistant coating graphite electrode. A graphite electrode coated with an antioxidant protective layer is applied to form a protective layer that is conductive and resistant to oxidation at high temperature, thereby reducing electrode consumption during steelmaking.

Q:Do electroplating experiments, graphite as an electrode, graphite how to pre process to ensure that the coating will not fall, resulting in increased color of the solution

Use a tight filter cloth as an anode pack