Electrolytic smelting of active metal ?????

The superficiality upstairs!

The industrial method of electrolysis of AI2O3 does electrolyze Al2O3 and requires cryolite (Na3Alf6) as a flux in order to reduce the temperature required to melt Al2O3 and thus save energy.

As for why we didn't use alcl3, it's not like the guy upstairs said.

There are two reasons for this.

Not ionic compounds, but common-valent compounds. This is doomed to the fact that there is no Al3+ in the molten AlCl3, and the electrolysis of AlQ cannot be made.

2.There are no natural deposits of AlCl3 (this is the reason why Alcl3 is not made by electrolysis when AlCl3 is an ionic compound).

Most people only know that the electrolysis of Al2O3 produces AL and O2, but this is not the case.

Industrial electrolysis of Al2O3 requires a large C block.

So on the anode it is 2O(2-)+C-4E=CO2 and on the cathode it is Al(3+)+3E==Al

Since C is consumed during electrolysis, block C should be replenished regularly.

In industry, AI is produced by electrolysis of AI2O3 and cryolite (flux) fusion mixture, and AI (ACI3 volatile) anode is produced without electrolysis of AIO3. 2o(2-)-4e==o2↑

Cathode. ai(3+)+3e==ai

The metals smelted by electrolysis in industry are K, CA, NA, MG, AL.

The principle of extracting metal powder from electrolytic stool liquid residue is: direct current is used in the electrolyte solution to produce the migration of positive and negative ions, the positive ions move to the cathode, the negative ions move to the anode, the oxidation reaction occurs on the anode, the reduction reaction occurs on the cathode, and the metal positive ions in the electrolyte solution are reduced and deposited on the cathode plate at the cathode.

This is the basic process of electrolysis. Therefore, electrolysis is a process in which jujube quietly realizes a chemical reaction with the help of electric current, and it is also a process of transforming electrical energy into chemical energy.

The smelting of many non-ferrous metals (such as sodium, potassium, magnesium, aluminum, etc.) and rare metals (such as zirconium, hafnium, etc.) and the refining of metals (such as copper, zinc, lead, etc.), the preparation of basic chemical products (such as hydrogen, oxygen, caustic soda, potassium chlorate, hydrogen peroxide, ethylene diethylene buried nitrile, etc.), as well as electroplating, electropolishing, anodizing, etc., are all achieved through electrolysis.

k、baica、na、mg、al

The principle of electrolysis to prepare metal powder is: direct current is passed in the electrolyte solution to produce the migration of positive and negative ions, the positive ions move to the cathode, the negative ions move to the anode, the oxidation reaction occurs on the anode, the reduction reaction occurs on the cathode, and the metal positive ions in the electrolyte solution are reduced at the cathode and deposited on the cathode plate.

This is the basic process of electrolysis. Therefore, electrolysis is a process in which a chemical reaction is achieved with the help of electric current, and it is also a process in which electrical energy is converted into chemical energy.

Smelting: It is to extract the metals in the ore by electrolysis and the use of chemical agents.

The common ones are sodium, magnesium and aluminum, which are obtained by electrolysis of sodium chloride, magnesium chloride and alumina respectively, the electrolysis of copper is used for refining, and the blister copper of the positive electrode is dissolved by electrolysis, and the refined copper is reduced on the negative electrode. In addition, not all reactive metals are smelted by electrolysis, such as potassium is reduced with sodium, titanium is reduced with magnesium, and so on.