| 摘要 |
PROBLEM TO BE SOLVED: To produce a carbide which gives more effective results in the cleaning of rivers, etc. SOLUTION: Kenaf is mixed with at least weeds, finely divided, further mixed with a viscous material and fired to obtain the objective carbide based on a material derived from the kenaf. The stock kenaf may further be mixed with agricultural products such as a rice plant, unhulled rice and a Japanese radish besides the weeds. |
