Abstract: Using gravity dust and converter sludge as the main raw materials，the cold bonded pellets were formed with some reducing agents， binders and water. The experiments of self-reduction for pellets in high temperature were conducted. The results showed that mixing gravity dust and converter sludge and making them into cold bonded pellets can not only make up the inadequacy of briquetting characteristic by forming with single material， but also achieve the self-reduction of pellets and fully recycle the valuable substance such as Fe， C and CaO. Metallization and dezincification ratio of pellets all rise with the increase of reaction temperature and can reach 91.35 % and 99.25 % respectively. As reaction time increase， metallization and dezincification ratio also rise gradually and can reach 50.68 % and 75.82 % respectively when the reaction lasts for 5minutes. As carbon addition amount rise， metallization and dezincification ratio show the trend of decrease after the first increase， but the change is very small.

Key words: dust and sludge containing iron, resource utilization, cold bonded pellet, self-reduction, metallization ratio, dezincification ratio