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|1. (WO2016052467) METHOD FOR PRODUCING HONEYCOMB FILTER|
|Applicants:||IBIDEN CO., LTD.
|Title:||METHOD FOR PRODUCING HONEYCOMB FILTER|
Provided is a method for producing a honeycomb filter, said method: making it possible, even when silicon carbide powder serving as a starting material is of low purity and a silicon compound is included, to promote the bonding of silicon carbide particles to each other by converting the silicon compound, which is an impurity, into another compound in a production step; and making it possible to produce a honeycomb filter having satisfactory properties as a filter. This method for producing a honeycomb filter is characterized by comprising: a molded article starting material preparation step in which a molded article starting material is prepared by mixing silicon carbide powder, which includes at least 3 wt% of impurities comprising a silicon compound, and an organic additive, which includes at least an organic binder; a molded article production step in which a honeycomb molded article is produced by extrusion molding the prepared molded article starting material; a degreasing step in which the produced honeycomb molded article is degreased in a perfect inert gas atmosphere; and a sintering step in which the degreased honeycomb molded article is sintered.