| abstract |
The present invention provides the method for removing iron in a kind of discarded SCR denitration regeneration powder preparation process, the method for removing iron is carried out in two steps: 1, discarding SCR denitration after over cleaning, broken, wet grinding are at slurry, iron is removed by electromagnetism iron remover for slurry, which mainly removes the solid-state Armco magnetic iron discarded in SCR denitration except iron；2, dilute sulfuric acid and reducing agent are added in regenerative response kettle by the ferrous iron of the ferric iron back of dissolution, is washed finally by filter press and cleans up ferrous iron；By two steps remove iron, finally by extra-fine grinding, drying, break up after regeneration powder iron content meet reuse standard.This method is easy to operate, low in cost, and de-ferrous effect is significant, is the deferrization process in the splendid discarded SCR denitration regeneration powder preparation process of one kind. |