12 results about "Bullion" patented technology

The invention discloses a method for cooperatively treating a lead-copper anode slime mixture through a noble lead furnace and a top-blown furnace, which comprises the following steps: mixing copper-lead anode slime according to a certain proportion, conveying the copper-lead anode slime into the noble lead furnace for melting, dividing the copper-lead anode slime into a reducing slag layer and a noble lead layer in a reducing atmosphere in the furnace, conveying the slag material into a slag converter through a chute, precious lead is conveyed into the top-blowing silver separating furnace through a chute to be oxidized and refined, and reducing slag is subjected to slag material secondary sedimentation in the slag converter. Later-stage slag, tellurium slag, alloy cleaning slag and crude silver are produced through deep oxidation refining, the later-stage slag returns to a bismuth system for treatment, the tellurium slag returns to a tellurium system for treatment, the alloy cleaning slag returns to a refining furnace for treatment, and the crude silver returns to gold, silver, platinum and palladium for treatment. The bottom blowing smelting furnace, the antimony production system and the bismuth production system are organically combined for cooperative treatment, liquid lead slag material chute stepped closed conveying is achieved in the production process, the production period can be shortened, the metal amount occupation pressure is reduced, the gold and silver direct recovery rate is increased, the working environment is improved, the labor intensity is reduced, and the production cost is reduced.

The invention relates to a method for recycling valuable metals in lead-containing solid wastes and wet-process zinc smelting waste residues, belongs to the technical field of comprehensive recycling of metallurgy, industrial solid wastes and secondary resources, and cooperatively treats the lead-containing solid wastes and the waste residues produced in the smelting process. Through co-treatment with industrial lead-containing solid waste, valuable metals such as Cu, Pb, Zn and Ag in the jarosite slag and the lead-silver slag can be efficiently extracted and recycled, and the environmental risk caused by long-term stockpiling of the jarosite slag and the lead-silver slag is avoided; after the lead-containing solid waste and the zinc smelting slag are co-processed, the direct recovery rates of the metal lead and the zinc are 95% or above and 90% or above respectively, 85% or above of metal silver is enriched in a lead bullion phase, and the curing rate of the sulfur element is 95% or above; the slag mainly comprises CaO-FeO-SiO2 ternary slag, and can be directly used for producing building materials after water quenching; elemental sulfur in the material is cured in a sulfonium phase, so that the problem of SO2 flue gas pollution in the smelting process is avoided.

1. The name of the design product: packaging box (panda coin). 2. The use of the design product: used for storing panda gold and silver coins. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view 5. 5. The left view is omitted as it is embodied in the submitted views; the right view is omitted as it is embodied in the submitted views; the top view is omitted as it is embodied in the submitted views; the bottom view is omitted as it is embodied in the submitted views.

The utility model discloses a copper matte and lead bullion separating and pouring device, which belongs to the field of lead copper matte smelting and comprises a separating box and lead discharging pipes, a plurality of copper discharging pipes are fixedly arranged on the right side of the separating box, blanking pipes are fixedly arranged on the right sides of the copper discharging pipes, and a filter screen is fixedly arranged at the lower end in the separating box. A box cover is slidably clamped to the upper end of the separation box, a plurality of supporting legs are fixedly arranged at the lower end of the separation box, a lead discharging pipe is arranged at the lower end of the separation box, and a plurality of copper discharging pipes are arranged, so that a proper copper discharging pipe is conveniently opened according to the position of the lower end when copper matte floats, floating copper matte is conveniently discharged, and lead liquid is prevented from being discharged; and meanwhile, a clamping groove is formed in the bottom plate, the clamping groove is in sliding clamping connection with a clamping block, the collecting box is limited, the limiting stability of the collecting box is improved, and the situation that the collecting box deflects until the collecting box moves or is placed, and the collecting work is affected is avoided.

The invention discloses a lead bullion fire refining device which comprises a shell, a heat preservation barrel is fixedly mounted in the shell, a melting barrel is fixedly mounted in the heat preservation barrel, heating blocks are fixedly assembled on the two sides of the outer end of the melting barrel, a driving motor is fixedly assembled in the center of the top of the shell, and a lead bullion fire refining device is fixedly assembled in the shell. And a main shaft is fixedly assembled on the driving motor through an output end at the bottom of the driving motor. According to the lead bullion fire refining device, the first stirring fan blade, the second stirring fan blade, the third stirring fan blade and the additive containing pipe are additionally arranged in the melting barrel, so that lead bullion and an additive can be fully mixed in the melting process, and therefore the efficiency of removing harmful elements is improved. Due to the design of the stirring fan blades, the lead bullion and the additive can be forcibly mixed in the melting process, so that the contact area between the lead bullion and the additive is increased, the reaction speed is increased, and the removal efficiency of harmful elements is improved.

The present application belongs to the technical field of crude lead refining, and particularly relates to a process for expanding the contact interface of crude lead refining slag and gold and efficiently separating the refining slag, which comprises the following steps: step 1, heating crude lead to a molten state in a refining kettle and keeping constant temperature; step 2, adding a refining agent into the refining kettle, and the refining agent covers the surface of the lead liquid; step 3, immersing a supergravity composite stirring multifunctional device below the lead liquid surface and starting rotation, the lead liquid and the refining agent enter from the upper opening of the device, are dispersed in the device through stirring, the refining slag is generated and enriched on the inner wall of the device, and the lead liquid flows out from the lower opening gap of the device and returns to the refining kettle. The present application introduces the supergravity composite stirring separation into the refining process, significantly expands the contact area of the slag and gold, improves the efficiency of the impurity removal reaction, realizes the efficient separation of the refining slag and the lead liquid, the removal rate of the refining slag is more than 99.9%, the refining time is shortened, and the amount of the refining agent is reduced, which is superior to the existing refining process level.

The application discloses a method for preparing low-oxygen-content high-purity gold from regenerated crude gold, which comprises the following steps: (1) adding hydrochloric acid into the regenerated crude gold and blowing air into the regenerated crude gold to pre-leach impurities under certain conditions; (2) dissolving, diluting and filtering the gold material after pre-leaching of impurities by using hydrochloric acid and chlorine gas to obtain a chloroauric acid solution; (3) adding appropriate ferric chloride into the chloroauric acid solution, adjusting the pH value by using sodium hydroxide solution, standing, filtering and obtaining a pure gold solution; (4) reducing the gold solution after impurity removal by adding hydrogen peroxide solution, filtering and washing to obtain sponge gold; and (5) refining and deoxidizing the sponge gold in a smelting and refining device, and obtaining low-oxygen-content high-purity gold after cooling. The method has the advantages of simple technological process, good impurity removal effect and easy control of the reaction process, and the high-purity gold prepared by the method has a purity of greater than 99.999% and an oxygen content of not more than 1 ppm.

The invention discloses a treatment method of lead-arsenic-containing solid waste, which realizes efficient directional fixation of arsenic in arsenic-containing smelting waste (fixation rate gt; 95%) and the synchronous high-grade recovery of valuable metals (the purity of lead bullion is gt; the lead recovery rate is 93.11%, and the lead recovery rate is 98.7%. The invention discloses a double action mechanism of chemical stirring effect and viscosity effect of coke in a system, and solves the technical problem that high metal recovery rate is inevitably accompanied by high pollution risk in the traditional technology through accurate control of a coke addition amount window. According to the method, complex pretreatment such as pre-roasting is not needed, all-component resource utilization of the multi-source arsenic-containing waste can be achieved through a one-step method, the generated iron-rich sulfonium phase can serve as a weighting material to be sold, lead bullion can directly enter the refining procedure, the ton treatment cost is remarkably reduced, and technical support is provided for green and sustainable development of the non-ferrous metal smelting industry.

1. Name of the designed product: Commemorative coin (Jiyan flower gold and silver coin set). 2. Use of the designed product: commemorative coin for collection and appreciation. 3. Design points of the designed product: combination of shape and pattern. 4. Picture or photo that best shows the design points: design 1 front view. 5. The right view of the designed product is the same as the left view, and the right view is omitted; the top view is symmetrical with the left view, and the top view is omitted; the bottom view is symmetrical with the left view, and the bottom view is omitted. 6. Design 1 is designated as the basic design.

The utility model discloses a lead bullion continuous refining furnace, and relates to the technical field of lead bullion refining equipment, in particular to a lead bullion continuous refining furnace which comprises a furnace body and two filtering parts symmetrically arranged on the furnace body. Each filtering component comprises a driving assembly, a filtering assembly and an auxiliary supporting assembly, through matched arrangement of the driving assemblies and the filtering assemblies, the crude lead continuous refining furnace has the effect of taking the filtering assemblies out of the furnace body, two electric air cylinders in the driving assemblies are used for pushing the filtering assemblies to move, and therefore the filtering assemblies can be taken out from the furnace body. The filtering assembly is integrally moved out of the furnace body in a sliding mode, the filtering assembly is detachably connected with the driving assembly, sediment on the filtering plate can be conveniently cleaned in time, the purpose of conveniently disassembling and cleaning the filtering plate is achieved, the phenomenon that the filtering plate is blocked due to long-term non-cleaning is avoided, and therefore the filtering effect of the filtering plate is prevented from being reduced.