Method for producing honeycomb structure

A method for manufacturing a honeycomb structure that includes partition walls partitioning a plurality of cells, the method comprising:

• molding a molded body from a mixture containing silicon carbide particles, an organic component, and a dispersion medium;
• removing the organic component included in the molded body to obtain a porous honeycomb body;
• and
• impregnating an inner portion of the partition walls of the porous honeycomb body with metal silicon,
• wherein in a state in which the porous honeycomb body is placed on a support inside a container containing solid metal silicon, said impregnating is performed by heating the inside of the container to a temperature higher than or equal to a melting point of the metal silicon so that the porous honeycomb body is impregnated with molten metal silicon through the support that is porous, and
• further comprising heating the porous honeycomb body at a temperature higher than or equal to 1800° C. between said removing and said impregnating.