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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 reduction furnace used by most of the small smelters.
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The reverberatory furnace for reduction of antimony oxide was also enlarged: refining at lower temperatures and continuous mechanical casting into ingots gave a high-grade regulus. To enlarge the range of antimony products successful testwork was carried out on a technique characterized by fuel-free, self-oxidation volatilization capable of ...
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The utility model discloses a kind of antimony reduction furnace, comprise the reduction furnace furnace shell of quartz ampoule, resistance furnace and band peep hole, resistance furnace is placed in reduction furnace furnace shell, quartz ampoule is horizontally through the axis of reduction furnace furnace shell, and is positioned in …
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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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The reduction smelting technology most commonly utilizes the antimony oxide powder reduction in a reverberatory furnace. Here, antimony oxide powder, reduced …
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These furnaces produced 3,091 lbs of antimony trisulfide in Jan-Feb time period. Two additional electric furnaces have been ordered in anticipation of demand and also to reduce down-time for ...
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This paper reviews the current practices and evolving processes for extracting antimony from primary resources using pyrometallurgical methods. It covers …
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Reportedly, volatilization smelting in BFs and reduction smelting of the produced ATO in reverberatory furnaces have been the pyrometallurgical route for the production of >90% of total antimony ...
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Abstract. Blast furnace volatilizing (smelting) and reverberatory furnace process is the main reduction method in the current antimony smelting process, and it is …
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Antimony is classified as a critical/strategic metal. Its primary production is predominated by China via pyrometallurgical routes such as volatilization roasting—reduction smelting or direct ...
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• Reduction Furnace Baghouse Filters (RIN 5) • Reduction Furnace Slag (Sb < 5%) (RIN 3) • Reduction Furnace Slag (5% < Sb < 10%) (RIN 3) The following is a list of QA/QC samples collected at the U.S. Antimony Corporation facility: • MS/MSD • Field Duplicate • Equipment Blank • Temperature Blank 1.C Sample Collection
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furnace, and 45-60% antimony ores are treated by liquation or iron precipitation. A description of each of these, as well as oxide reduction, follows (Motoo, 1974, Vladislav, 1981, Young-Fu and
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Electrodeposited antimony can be treated with sulfuration–volatilization technology, which causes antimony to volatilize in the form of antimony sulfide. During this process, gold is enriched in the residue, thereby realizing the value-added use of antimony and the recovery of gold. In this study, the thermodynamic conditions of antimony …
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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 …
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Reduction: The antimony oxide is then reduced to metallic antimony by heating it with carbon or by reacting it with iron scrap in a blast furnace. Refining: The crude antimony is further refined to remove impurities. This is typically done through electrolytic refining or by treating the antimony with oxygen-rich air to remove remaining sulfur ...
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(4) reduction melting：The high antimony lead slag of liquid in step (3) enters oxygen-enriched reduction furnace by slag chute stream, and to carry out reduction molten Refining, the volumetric concentration of the oxygen-enriched air in wherein oxygen-enriched reduction furnace are 88～92%, the pressure in oxygen-enriched reduction …
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Antimonial dust is a by-product of lead smelting and an important material for extracting antimony. A new pyrometallurgical process for producing antimony white from the antimonial dust is reported. The process mainly consists of three steps, which are reduction smelting, alkaline refining, and blowing oxidation. First, the reduction …
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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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Metallurgical extraction of antimony (Sb) currently has the limitations of high energy consumption and adverse environmental impact. In this study, we proposed a cleaning process to extract Sb by metallurgy and beneficiation based on S-fixing and reduction roasting of Sb2S3. Metallic Sb can be obtained directly by using zinc oxide …
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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 …
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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 …
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Antimony is considered an important metal, and various antimony compounds are widely used in electronics, flame retardants, chemicals, alloys, and semiconductor materials. 1 Antimony exists mainly in the form of antimony sulfide, which is usually smelted by volatilization in the blast furnace. However, the process has some …
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The dominant production methods include blast-furnace smelting, volatilization roasting, liquation, reduction, ... including those bearing arsenic and mercury. Liquation is typically used for the production of antimony(III) sulfide, whereas reduction, precipitation, and leaching/electrowinning are more indicated for high-grade ...
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The reduction smelting is widely applied in the production of steel, ferroalloy, and heavy metals including nickel, lead, zinc, tin, antimony, bismuth, etc., such as blast furnace ironmaking or ferroalloy, saprolite laterite electric furnace reduction smelting to produce nickel-iron, Imperial smelting process (ISP) of lead-zinc sinter to ...
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The invention discloses a vertical reduction furnace for high-purity antimony production. The vertical reduction furnace comprises a feed pipe, a feed port, a reduction pipe and a gas-liquid separation discharge port, wherein the feed pipe, the feed port, the reduction pipe and the gas-liquid separation discharge port are sequentially and vertically …
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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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Reduction smelting in Ausmelt furnace produces crude tin, lean tin slag, and dust-bearing flue gas. The Ausmelt furnace tin smelting process is shown in Fig. 1. ... Aluminum reacts with arsenic and antimony to generate high melting point compounds whose density is less than that of tin. Then temperature is decreased and sawdust is …
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The raw material used in this study was noble antimony, obtained through the reduction smelting of antimony concentrate. ... The temperature of the furnace can be regulated by a control cabinet connected to the graphite heat generator and is measured in real time using a thermocouple (type b, platinum-rhodium thermocouple with an …
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Reportedly, volatilization smelting in BFs and reduction smelting of the produced ATO in reverberatory furnaces have been the pyrometallurgical route for the production of >90% of total antimony ...
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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 …
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