Patent ID: 11883802
Assignee: NGK INSULATORS, LTD.
Field: Chemical engineering (Chemistry)
Classification: CPC B  C | IPC B  C

Claim 7:
8. A method for producing the honeycomb structure according to claim 1, comprising adding, to (A) a silicon carbide particle material, (B) at least one selected from the group consisting of metallic silicon, alumina, silica, mullite and cordierite, an organic binder and an inorganic binder and mixing them, then forming the mixture into a predetermined shape, calcining the resulting formed body in an oxygen-containing atmosphere to remove the organic binder in the formed body, and then firing it to produce amorphous and/or crystalline SiO2 or SiO on a surface(s) of the component (A) and/or the component (B),
wherein the method comprises controlling a content of sodium in the silicon carbide porous body after producing the amorphous and/or crystalline SiO2 or SiO to from 0.01 to 0.12% by mass in Na2O equivalent.