Traditional Culture Encyclopedia - Traditional culture - What is the method of manufacturing silicon in industry? Write the chemical equation.

What is the method of manufacturing silicon in industry? Write the chemical equation.

Preparation of crude silicon (reduction of quartz sand by coke)

Silicon dioxide +2c = silicon (coarse) +2CO

Purification method:

Silicon (crude)+carbon dichloride (gram) = silicon tetrachloride (liter)

Sicl4+2h2 = Si (pure) +4HCl

Finally, pure silicon is obtained.