The ash deposition method of screening, washing in the waste SCR catalysts were completely removed by these and purging, and the SCR catalysts with no dust were ob- tained.The use of acid, alkali and other methods to remove the catalyst surface residual trace impurities, the waste SCR catalyst in the arsenic, aluminum, iron, sodium, potassium, sulfur, calcium, silicon and other harmful components decreased to the level of new prod- ucts.The catalysts for the above treatment were added to the vanadium experiment ,and the chemical composition of the waste SCR catalyst could reach the level of th...
