TH63654A - Method for producing copper blister - Google Patents

Abstract

DC60 (12/12/45) The invention involves a method to produce high grade copper blister or matt in a machine. Reactor smelting directly from materials containing sulphidic copper concentrates and / or finely milled copper matt where oxygenated gas, copper concentrate and / or milled copper matt. The details are then fed into the reactor. According to fabrication, flux containing CaO and SiO2 are then fed into the smelting reactor with oxygen-rich gas, copper concentrates. And / or matt copper And the copper part in the concentrate and / or in the matt is oxidized Dized to form sludge where the CaO / SiO2 ratio is greater than 1.5 and where the load Copper in oxidized form And where the loading content of the lime calculated in the CaO + SiO2 + FeOx = 100 system is 20% higher, the invention involves a method to produce high grade copper blister or matt in the machine. Reactor smelting directly from materials containing sulphidic copper concentrates and / or finely milled copper matt where oxygenated gas, copper concentrate and / or milled copper matt. The details are then fed into the reactor. According to fabrication, flux containing CaO and SiO2 are then fed into the smelting reactor with oxygen-rich gas, copper concentrates. And / or matt copper And the copper part in the concentrate and / or night matt will be oxidized Dized to form sludge where the CaO / SiO2 ratio is greater than 1.5 and where the load Copper in oxidized form And where the loading content of the lime calculated in the CaO + SiO2 + FeOx = 100 system is 20% higher.

Claims (6)

1. A method for producing high-grade copper blister or matt in a smelting reactor directly from available materials. Sulfidic copper concentrate and / or finely milled copper matt. Where oxygen-rich gas, copper concentrates and / or finely milled copper matt are obtained. Input into the reactor It is characteristic that the CaO and SiO2 fluxes are fed into the smelting reactor together with the oxygen-containing gas, the copper concentrate and / or the copper matt and the copper part in the concentrate and / Or Nimatt will be oxidized to Forms a sludge where the CaO / SiO2 ratio is greater than 1.5 and where the copper content In an oxidized form And where the filling content of lime calculated in the CaO + SiO2 + FeOx = 100 system is 20% higher. 2. Method according to claim 1, which is characterized by the content of copper content in the smelting slag in Fig. It has been oxidized to at least 6 percent by weight. 3. Method for one of the claims of Clause 1 or Clause 2 that are characterized as being active. The value of lime in the sludge formed is high, increasing the crystallization of arsenic and antimony. 4. Method for one of the claims of Clause 1 or Clause 2 that are characterized as being active. The high content of silica in the slurry was formed to remove lead from copper blister. 5. Method for pursuant to any of the prior claims. That have the characteristics exactly how to get Achieving success in smelting units using gas containing oxygen 6. Procedure for any one of the preceding claims. That have the characteristics exactly how to get Finishing in a suspended smelting furnace