Method for producing tetraalkoxysilane

A method for producing a tetraalkoxysilane, the method comprising:

• a first step of reacting an alcohol with a silicon oxide;
• and
• a second step of bringing a vaporized component of the reaction mixture obtained in the first step into contact with a molecular sieve;
• wherein:
• the first step is carried out in a reactor whose temperature (T1) is controlled within the range of 200° C.<T1<300° C.;
• the second step is carried out in a container whose temperature (T3) is controlled within the range of 10° C.≤T3≤150° C., and which includes the molecular sieve provided therein;
• the vaporized component moves from the reactor to the container through an outward flow path whose temperature (T2) is controlled within the range of 190° C.≤T2≤300° C.;
• and
• a component which has been brought into contact with the molecular sieve in the second step moves from the container to the reactor through an inward flow path.