JP2014091653A5 - - Google Patents

Claims (8)

  A cellulose acetate lump or powder is contained in a container having an open top surface, and the cellulose acetate lump or powder is heated and fired while the container is conveyed horizontally in a continuous heating furnace. In the method for producing carbide, a lump or powder of cellulose acetate contained in a container is heated and melted to make a viscous liquid, and then the viscous liquid is converted into acetic acid vapor generated by thermal decomposition of the viscous liquid and its acetic acid vapor. A method for producing a carbide comprising heating and firing while suppressing droplets composed of a viscous liquid accompanying the liquid from scattering to the outside of the container.   The amount of cellulose acetate lump or powder contained in the container is such that the top of the cellulose acetate lump or powder contained in the container does not exceed 90% of the depth of the container. The method for producing carbide according to claim 1. The method for producing a carbide according to claim 1 or 2, wherein the cellulose acetate lump or powder is heated and fired at a temperature in the range of 300C to 450C .   The method for producing carbide according to any one of claims 1 to 3, wherein a container having a larger area of an opening surface than an area of a bottom surface is used as a container for storing a lump or powder of cellulose acetate.   The opening of the container containing the cellulose acetate lump or powder is provided with a removable lid with an exhaust port for acetic acid vapor, and then the cellulose acetate lump or powder contained in the container is heated and melted. The method for producing carbide according to any one of claims 1 to 3.   The manufacturing method of the carbide | carbonized_material in any one of Claims 1 thru | or 5 which heat-sinters, spraying an inert gas on the opening surface of the container which has accommodated the cellulose acetate used as the viscous liquid.   The method for producing a carbide according to any one of claims 1 to 6, wherein the cellulose acetate lump or powder is a cut product of cellulose acetate fiber or a pulverized product of cellulose acetate film. A method for producing activated carbon by subjecting a carbide produced by the production method according to any one of claims 1 to 7 to an activation treatment in the presence of water vapor and an inert gas.