Abstract: Disclosed in the present application is a copper rotation-suspension smelting process comprising: mixing a flux and/or fume with dried copper-containing mineral powders to form a mixed material, which enters into a smelting furnace through a material channel; allowing a reaction gas to form a swirling flow under an action of a swirler, which enters into the smelting furnace through a Venturi channel under a guidance of a swirling gas channel; replenishing the reaction gas and/or a fuel to the smelting furnace through an auxiliary oxygen channel and an auxiliary fuel channel; subjecting the swirling flow which has been subjected to high-speed expansion through the Venturi channel and enters into the smelting furnace to a contact reaction with the mixed material; separating a melt generated by the reaction which falls into a settling tank into a residue layer and a copper-containing product layer.

Abstract: Disclosed in the present application is a copper rotation-suspension smelting process comprising: mixing a flux and/or fume with dried copper-containing mineral powders to form a mixed material, which enters into a smelting furnace through a material channel; allowing a reaction gas to form a swirling flow under an action of a swirler, which enters into the smelting furnace through a Venturi channel under a guidance of a swirling gas channel; replenishing the reaction gas and/or a fuel to the smelting furnace through an auxiliary oxygen channel and an auxiliary fuel channel; subjecting the swirling flow which has been subjected to high-speed expansion through the Venturi channel and enters into the smelting furnace to a contact reaction with the mixed material; separating a melt generated by the reaction which falls into a settling tank into a residue layer and a copper-containing product layer.

Abstract: Provided herein is a method for smelting high-arsenic copper sulfide concentrate, which comprises the steps of: mixing the high-arsenic copper sulfide concentrate with quartz sand and CaO-containing material to obtain a mixed material; mixing the mixed material with oxygen-containing reactant gas and heating for reaction to obtain matte, slag and SO2-containing flue gas. By the addition of CaO and SiO2 in the smelting process, the concentrate material, the CaO and the SiO2 are allowed to react in the furnace under high temperature. The arsenic sulfides in the concentrate are oxidized first and then chemically react with slagging flux CaO to enter the slag phase in the form of calcium-based compounds of arsenic, iron arsenates and etc., thus reducing the arsenic content in the copper matte.

Abstract: A method for producing blister copper directly from copper concentrate is provided, comprising: a) adding copper concentrate, copper matte, slagging material, oxygen enriched air, endothermic material to an upper segment of the reaction furnace; b) adding reducing agent to the lower segment space of the reaction furnace; c) directing the produced hot coke and liquid slag into an electric furnace, and adding copper concentrate into the electric furnace to generate an electric furnace slag and copper matte; d) the copper matte being granulated and finely ground, then re-fed into the reaction furnace.

Abstract: The present invention provides a method for producing blister copper directly from copper concentrate, comprising: a) adding copper concentrate, copper matte, slagging material, oxygen enriched air, endothermic material to a upper segment of the reaction furnace; b) adding reducing agent to the lower segment space of the reaction furnace; c) directing the produced hot coke and liquid slag into an electric furnace, and adding copper concentrate into the electric furnace to generate an electric furnace slag and copper matte; d) the copper matte being granulated and finely ground, then re-fed into the reaction furnace. The addition of reducing agent in the lower segment will not increase the heat load of the reaction furnace since the reducing agent does not burn.