| 摘要 |
PURPOSE:To produce a filter reducing the combustion temp. of a fine particle- shaped substance and preventing the deterioration of a catalyst by preventing a chemical reaction of a filter part with the catalyst during the combustion of the substance. CONSTITUTION:This filter consists of a filter part 1, a coating layer 2 contg. lithium oxide, chromium oxide, vanadium oxide, potassium vanadate, lithium aluminate, chromium aluminate or a multiple oxide consisting of an alkali metal or a rare earth metal and alumina disposed on the surface of the filter part 1 and a catalyst 3 carried on the coating layer 2. |
