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: A rotation-suspension smelting method, in which a powdered sulfide concentrate and an oxygen-containing gas are sprayed into a high-temperature reaction tower. The oxygen-containing gas is divided into two parts: the second oxygen-containing gas is sprayed in the form of an annular direct flow into the reaction tower and forms a bell-shaped wind curtain; and the first oxygen-containing gas is transformed into a rotation-jet and jetted into the center of the wind curtain. In the space between the gas flows, the concentrate entering in a direction deviated towards the center is drawn in the rotation-jet, and a high-temperature off-gas is sucked in, forming a gas-particle mixed two-phase rotation-jet. The sulfide concentrate is ignited, at the same time, a melt containing matte (or metal) and slag is formed; and the matte (or metal) is separated from the slag at the bottom of the reaction tower, completing the metallurgical process.

Abstract: The present invention provides a process for extracting noble metals from anode slime, comprising: mixing sodium carbonate, quartz and coke powder and impurity-removed anode slime, and subjecting the mixture to smelting and converting to obtain alloys of noble metals. The present invention avoids problem of lead pollution by using metallic bismuth to collect noble metals; meanwhile, metallic bismuth has low melting point, high specific gravity, and formation heat of bismuth oxide of 45.6 kcal/g atomic oxygen, thus it is easy to be reduced and the reduction temperature is low, which are beneficial for saving energy consumption and reduction time; the much smaller amounts of copper, nickel, antimony and arsenic entering noble bismuth in a slightly reductive smelting atmosphere than those entering noble lead make the converting of noble bismuth become simple, thereby decreasing smelting time and increasing the direct recovery rate of noble metals in anode slime.

Abstract: The invention discloses a parallel jet electrolytic process, wherein an electrolyte after being pressurized is jetted in parallel from a position at the bottom and near a surface of a cathode at a rate of 0.5-2.5 m/s into a gap between the cathode and an anode. During the production process, the pressurized electrolyte is jetted in parallel along the surface of the cathode, and the electrolyte flows from bottom to top at the cathode side and moves from top to bottom at the anode side simultaneously, which thus achieves a side cutting function on the cathode and the anode; and the side cutting flow of the electrolyte from top to bottom at the anode is able to greatly increase the settling rate of the anode slime and avoid its adhesion to the anode to form an anode slime layer. The invention also provides a parallel jet electrolytic device.

Abstract: A method and device for depleting copper smelting slag. The method comprises mixing copper smelting molten slag (1) with a reductant (2) and an inert gas (3) under pressure, and then depleting same. The device for depletion comprises a furnace body (4), which furnace body (4) is provided with a feed opening (413) and a slag discharge port (416), and gas nozzles (411) disposed on the side wall of the furnace body.

Abstract: A method and device for producing a crude copper. The method comprises: mixing and reacting copper smelting molten slag (1), a carbon-containing reductant (2) and an inert gas (3) under pressure, the pressure of the inert gas (3) being 100 kPa to 800 kPa. The device comprises: a furnace body (4) and gas nozzles (411) disposed on the furnace body (4), the gas nozzles (411) being located on the sidewall of the furnace body (4) and connected to the center of the molten pool.

Abstract: A floating entrainment metallurgical process includes injecting a reaction gas and powdery materials into a reaction furnace, aiming to obtain a controllable highly rotating and floating state and reach the ignition point under the high-temperature radiation of the reaction furnace to combust intensely. Meanwhile, a rotating fluid injected in the reaction furnace will drive the furnace gas, and forms a relatively low-temperature circular backflow protection area around the rotating fluid.