Method for preparing copper-containing cast iron and slag cotton from molten copper slag

Method for preparing copper-containing cast iron and slag cotton from molten copper slag

  • CN 104,975,123 A
  • Filed: 07/06/2015
  • Published: 10/14/2015
  • Est. Priority Date: 07/06/2015
  • Status: Active Application
First Claim
Patent Images

1. molten copper slag prepares a method for cupric cast iron and slag wool, it is characterized in that, comprises the following steps:

  • (1) molten copper slag and reductive agent are added to electric furnace (1) to smelt, smelting temperature is 1400 ~ 1600 DEG C;

    (2) copper and ferro element in reductive agent reducing and smelting copper ashes, the recovery time is 30-50min;

    (3) after reduction treatment, melting tailings is slagged tap from slag notch, pours slag holding furnace (3) into and carries out homogenizing process, and the melting tailings after homogenizing carries out making cotton process, obtains slag wool;

    (4), after having slagged tap, reduction treatment gained cupric iron liquid flows into tundish through iron notch, and cupric iron liquid flows out through tundish and prepares cupric cast iron.

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