Antimony and arsenic substance flow analysis in antimony
Substance flow analysis was applied to an antimony pyrometallurgical system. By taking antimony and arsenic as the objective elements, the mass balance and substance flow charts based on the production system were established, and evaluating indicators such as the direct recovery rate, waste recovery rate, and resource efficiency were set up.
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An Analysis of Long-Process Ironmaking in a Reduction Smelting Furnace
The blast furnace and basic oxygen furnace (BF-BOF) is still the main process used for the production of iron and steel in China. With the approach of the "dual carbon" target, the iron and steel industry needs to transform and upgrade to "green" and "low-carbon" practices. At present, the low-carbon hydrogen metallurgy technology route based on hydrogen instead …
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Sulfur fixation and reduction roasting of stibnite for clean …
The direct sulfur fixation and reduction roasting of antimony sulfide (Sb 2 S 3) were investigated for antimony extraction, based on the combination of metallurgy and beneficiation.Zinc oxide (ZnO) and carbon, used as the sulfur-fixing agent and reductant, respectively, were roasted with Sb 2 S 3 to form Sb metal and zinc sulfide (ZnS). The products …
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REDUCTION SMELTING OF ANTIMONY CONCENTRATE …
The purpose of this study was to investigate the reduction smelting of antimony concentrate obtained in the course of lead production. The blend was prepared by mixing antimony …
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SELECTIVE EXTRACTION OF MERCURY AND ANTIMONY …
the ore and would permit possible recovery of antimony from the furnace calcine. Similar treatment is reported tp have been employed successfully on livingstonite ... preliminary studies were made of mineral dressing, furnace reduction, and hydrometallurgical treatments. The presentation of data and the dis-cussion of results from each type of ...
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A Review on Pyrometallurgical Extraction of Antimony from …
Blast furnace volatilization—reduction smelting is currently the most commonly used method for treatment of concentrates; capable of smelting a wide range of antimony …
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Cleaning of high antimony smelting slag from an oxygen …
AbstractCleaning of high antimony smelting slag from an oxygen-enriched bottom-blown was tested by direct reduction in a laboratory-scale electric furnace. The effects of added CaO, mass ratio of coal (experimental) to coal (theoretical) (ω) and the slag type on the reduction procedure were considered. The contents of Sb and Au were investigated. Iron contamination …
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Direct production of antimony by reduction and sulfur …
Blast furnace volatilizing (smelting) and reverberatory furnace process is the main reduction method in the current antimony smelting process, and it is associated with problems such as a long ...
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Antimony Metallurgy
This is mostly the volatilization smelting (roasting) – reduction smelting. Antimony sulfide is susceptible to volatilization and oxidation, so it can be used to produce crude antimony xide at a temperature above 1,200 °C. ... A small volume of antimony matte is also generated and flows together with antimony metal via the furnace base ...
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CN105333733B
Shaft reduction stove is produced the invention discloses a kind of high purity antimony, including vertically disposed feed pipe, charging aperture, reduction tube, gas-liquid separation discharging opening successively from top to bottom, wherein in feed pipe insertion charging aperture, what feed pipe was passed through turns on for trichloride antimony raw material, charging aperture …
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Development of a process for production high purity Antimony …
The reduction of antimony oxide is carried out at 625 0 C in a rectangular reduction furnace fabricated from stainless steel. The oxide is loaded in 20 x 10 x 4 cm graphite trays (16 nos) at a
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Kinetic studies for sulfur-fixing and roasting reduction of antimony …
Reduction roasting has been widely used to obtain antimony in recent decades [6–11]. However, the performance of this production method is barely satisfactory due to the high energy consumption and low production efficiency [9]. ... (Sb2O3) in a blast furnace, and then Sb2O3 is reduced to antimony metal in a reverberatory furnace (Hua et al ...
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The mechanism study and low-carbon analysis of biomass …
The reduction smelting technology most commonly utilizes the antimony oxide powder reduction in a reverberatory furnace. Here, antimony oxide powder, reduced coal, and solvent are …
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Preparation of Antimony Metal by Carbothermal …
antimony metal by microwave carbon thermal reduction so that the process can prepare high-quality antimony ingots and lay a foundation for further industrial applications.
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CN220339106U
The utility model relates to the technical field of blast furnaces and discloses an antimony lead semi-reduction semi-volatilization smelting blast furnace which comprises a bottom plate and a blast furnace body, wherein the blast furnace body is fixedly arranged on the upper surface of the bottom plate, a feed inlet is formed in the upper surface of the blast furnace body, a storage bin …
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ANTIMONY OXIDE LISTING BACKGROUND
U.S. Antimony Collected from drums of "Reduction furnace slag" that were designated as containing less than 5 percent antimony. AC-1-AO-06 U.S. Antimony Collected from drums of "Reduction furnace slag" that were designated as containing 5 to 10 percent antimony. LI-1-AO-01 Laurel Industries Collected from drums used to collect the material.
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Low-Temperature Microwave Carbothermic Reduction …
of antimony metallurgy at present.6 The pyromet-allurgy antimony smelting process involves the blast furnace volatilization smelting-reverberatory furnace reduction smelting process, but its special operating conditions make this process have high coking rate, high energy consumption, short furnace age, and high flue gas temperature.7 Owing to the
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Reduction smelting of antimony concentrate obtained in …
To wash the hearth, 60-190 tons of welding slag are introduced through the top of the furnace (60 tons for 1361-m 3 furnaces, 73 tons for 1386-m 3 furnaces, 86 tons for 1719-m 3 furnaces, 121 tons ...
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Recovery of Antimony: A Laboratory Study on the Thermal …
Industrially, reduction of antimony oxide to metallic antimony is achieved by heating and the addition of carbon in a reverberatory furnace. Volatilization of antimony can be reduced by the addition of an alkaline flux but it cannot be eliminated [ 20 ] and volatilized antimony oxide is recovered in flues, condensing pipes, bag houses ...
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The Recovery of Pb and Zn in Antimony Smelting Slag
The antimony ore mainly occurs as jamesonite (4PbS·FeS·3Sb 2 S 3). The process of sinter + blast furnace reduction—reverberatory refining—is utilized for metal antimony smelting. With regard to such process, amounts of smelting slag are produced during blast furnace reduction.
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Investigation into Oxygen-Enriched Bottom-Blown …
xide in a blast furnace, and carbon-based reduction of the xide to metallic antimony in a reverberatory furnace. In these processes, however, antimony smelting at a high temperature will cause (1) serious environ-mental pollution during roasting and smelting because abundant antimony sulfide and some relevant volatile
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The Process and Application of Oxygen-Enriched Air Side
The process flow diagram for processing of lead-bearing polymetallic materials by oxygen-enriched side blown oxidation, oxygen-enriched side blown reduction and fuming with fuming furnace is shown in Fig. 2.After proportioning, the lead-bearing polymetallic materials are mixed and granulated, with input charge particle size of around 15 mm, water controlled within …
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Antimony, a pollutant of emerging concern: A review on …
Metallic antimony (of purity 99.4%) is obtained by reduction of the antimony oxide (collected in the dust collector) in a reverberatory furnace operating at 1200 O C under reducing conditions. Any accompanying arsenic is removed, in the reverberatory furnace, by the addition of NaOH to obtain the AAR.
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Preparation of Antimony Metal by Carbothermal …
antimony metallurgical enterprises to achieve energy savings and cost reductions. To conduct a more in-depth study of microwave carbothermal reduction, the relationship between the parameters of carbothermal reduction and the reduction yield of antimony ingots under a microwave field was established using the response surface method (RSM). The
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CN111020206A
The Kaldo furnace smelting slag is produced in the process of recovering gold and silver by treating copper anode slime by adopting a Kaldo furnace main process in a precious metal smelting plant, mainly comprises elements such as lead, antimony, bismuth, tin and the like, also contains 4-5 kg/t of silver and 50-60 g/t of gold, and has extremely high value.
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Low-Temperature Microwave Carbothermic Reduction Roasting of Antimony
Antimony is a crucial strategic metal resource that is widely used in alloys, materials, flame retardants, and catalysts. 1,2 Stibnite is the most important mineral raw material for antimony beneficiation and smelting. 3 The main component of stibnite is antimony sulfide. Antimony sulfide concentrate can be obtained from stibnite after ore beneficiation, and various …
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Kinetic studies for sulfur-fixing and roasting reduction of …
In the reduction reaction of Sb 2 S 3 with ZnO as the sulfur-fixing agent, the main reactions are reaction (1) and reaction (2) [26]. They comprise a one-step reduction sulfur …
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Metallic antimony preparation by carbothermic reduction of …
In the process, high-grade stibnite is concentrated by blast furnace volatilization smelting to obtain high purity antimony xide, then the collected antimony oxide powder is …
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Antimony Smelting
C. Reduction furnaces, for the reducing of the xide or tetroxide, or for the direct smelting of crude or rich ore, to regulus. Fig. 7 shows a type of …
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CN109609773B
A smelting method for reduction dearsenification and volatilization dearsenification of high-antimony secondary smoke dust by using a multilayer tuyere and a high-coke column blast furnace is characterized in that the high-antimony secondary smoke dust, sodium carbonate and a low-temperature carbonization reducing agent are added with water for proportioning and then …
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