Method for separating metal iron from nickel slag

Method for separating metal iron from nickel slag

  • CN 104,451,136 A
  • Filed: 11/24/2014
  • Published: 03/25/2015
  • Est. Priority Date: 11/24/2014
  • Status: Active Application
First Claim
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1. the method for separating metal iron from nickel slag, is characterized in that, comprising:

  • (1) described nickel slag is carried out break process, to obtain nickel solid impurity particle;

    (2) described nickel solid impurity particle is carried out calcination process, to make the ferrosilicate contained in described nickel solid impurity particle be converted into ferric oxide, produce sulfurous gas simultaneously;

    (3) the nickel solid impurity particle after described calcination process and carbonaceous material and additive are carried out combination treatment, to obtain mixture;

    (4) described mixture is carried out forming processes, to obtain pelletizing material;

    (5) described pelletizing material is carried out drying treatment, to obtain the pelletizing material through super-dry;

    (6) the described pelletizing material through super-dry is carried out reduction treatment, to obtain metallized pellet;

    And(7) described metallized pellet and carbide slag are carried out molten divisional processing, to obtain metallic iron and slag.

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