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.
The present invention provides a process for extracting noble metals from anode slime, comprising the steps of: 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 the problem of lead pollution by using metallic bismuth to collect noble metals; meanwhile, metallic bismuth has a low melting point, a high specific gravity, and a 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 that enter noble bismuth in a slightly reductive smelting atmosphere than those that enter 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. Additionally, the technique for collecting noble metals in anode slime with bismuth provided according to the present invention may implement reduction smelting and oxidation converting in one closed metallurgical furnace.
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.
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.
C22B 5/08 - Dry processes by sulfidesRoasting reaction processes
C22B 19/02 - Preliminary treatment of oresPreliminary refining of zinc oxide
F23L 7/00 - Supplying non-combustible liquids or gases, other than air, to the fire, e.g. oxygen, steam
F23C 7/00 - Combustion apparatus characterised by arrangements for air supply
F23D 1/00 - Burners for combustion of pulverulent fuel
F23D 14/32 - Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid using a mixture of gaseous fuel and pure oxygen or oxygen-enriched air
5.
A ROTATION-SUSPENSION SMELTING METHOD, A BURNER AND A METALLURGICAL EQUIPMENT
A rotation-suspension smelting method is provided, in which powdered sulfide concentrate and oxygen-containing gas are sprayed into a high-temperature reaction tower through an equipment. The gas is divided into two parts before entering the equipment: the second gas is sprayed as an annular direct flow into the tower and forms a bell-shaped wind curtain; and the first gas is transformed into a rotation-jet via the equipment and jetted into the curtain. The concentrate enters the space between the gas flows and is deviated towards the center. The rotation-jet draws in the concentrate and a high-temperature off-gas from the bottom of the tower, forming a gas-particle mixed two-phase rotation-jet. The concentrate is ignited, starting a combustion reaction with oxygen and releasing SO2-rich off-gas. Simultaneously, a mixed melt containing matte (or metal) and slag is formed. The matte (or metal) is finally separated from the slag at the bottom of the tower.
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.
A61K 51/10 - Antibodies or immunoglobulinsFragments thereof
C07K 16/18 - Immunoglobulins, e.g. monoclonal or polyclonal antibodies against material from animals or humans
C07K 16/28 - Immunoglobulins, e.g. monoclonal or polyclonal antibodies against material from animals or humans against receptors, cell surface antigens or cell surface determinants
A61K 45/06 - Mixtures of active ingredients without chemical characterisation, e.g. antiphlogistics and cardiaca
A61K 47/68 - Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additivesTargeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the non-active ingredient being a modifying agent the modifying agent being an antibody, an immunoglobulin or a fragment thereof, e.g. an Fc-fragment
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.
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.
A spin-suspension-entrainment metallurgical process. A reaction gas (12) and a powdered material are sprayed into a reaction furnace (13) to achieve a controllable highly dispersed spin suspension status, and reach the ignition temperature under the high-temperature radiation of the reaction furnace (13) to undergo an intense combustion reaction. Meanwhile, a spin fluid (15) sprayed into the reaction furnace (13) drives the furnace gas, so as to form a reflux protective layer (14) of a relatively low temperature around the spin fluid. The reaction gas (12) in multiple turnaround channels flows along the tangent to enter a swirl generator (2), to form a controllable rotating gas flow. A conical outlet wind speed controller (9) capable of moving vertically is used to control the area of the outlet of the swirl generator (2), and control the speed that the reaction gas (12) enters the reaction furnace (13). A powdered material flow (11) falls freely along the periphery of the reaction gas (12), and is entrained into the high-speed rotating gas flow, so as to form the spin fluid (15) rotating radially at a high speed and moving vertically along the axial direction where the powdered material is highly dispersed in the reaction gas. Also provided is a reactor for implementing the method and capable of stepless adjustment.
patents
