volatilization roasting techniques for antimony

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  • Volatizing Patents and Patent Applications (Class 423/88) .

    Further, in the roasting of antimony-containing phases (such as speiss) the presence of arsenic can enhance the volatility of the antimony. Type: Grant Filed: January 29, 1991

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  • antimony and arsenic flotation

    The technology of concentration of the sulfide antimony-arsenic gold-bearing ore containing 3.6 g/tn Au, 0.3% Sb, and 0.4% As is developed. This technology implies the flotation separation of antimonite and arsenopyrite into separate products and allows them to perform in various cycles, increasing production efficiency due to a decrease in consumption of sulfuric acid for bacterial oxidation .

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  • Behavior of Arsenic, Antimony and Bismuth at Roasting .

    The reaction mechanism for the volatilization of arsenic and antimony were discussed. Near 100% As and over 95% Sb volatilized in the oxidation of a mixture of pure minerals at 700 °C, 1% oxygen, while over 95% As, and 35% Sb volatilized at 600 °C in 1% oxygen atmosphere when using a copper concentrate containing 3.51% As, 0.14% Sb, and 0.01% Bi.

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  • removal antimony water

    Removal of arsenic, antimony and bismuth from copper may take place in the smelting operations by scorification, volatilization, or, under special treatment, by processes of concentration. Owing to the great variety of materials that are treated in economical metallurgy, it is rarely possible to obtain exact weights from any particular operation.

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  • antimony and arsenic flotation

    The technology of concentration of the sulfide antimony-arsenic gold-bearing ore containing 3.6 g/tn Au, 0.3% Sb, and 0.4% As is developed. This technology implies the flotation separation of antimonite and arsenopyrite into separate products and allows them to perform in various cycles, increasing production efficiency due to a decrease in consumption of sulfuric acid for bacterial oxidation .

    Get Price
  • Behavior of Arsenic, Antimony and Bismuth at Roasting .

    The reaction mechanism for the volatilization of arsenic and antimony were discussed. Near 100% As and over 95% Sb volatilized in the oxidation of a mixture of pure minerals at 700 °C, 1% oxygen, while over 95% As, and 35% Sb volatilized at 600 °C in 1% oxygen atmosphere when using a copper concentrate containing 3.51% As, 0.14% Sb, and 0.01% Bi.

    Get Price
  • antimony smelting process

    исследуем и производим высокоэффективную щековую дробилку серии HJ, на основе передовых ...

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  • Roasting Iron From Antimony Ore

    For roasting sulphide ores two methods are used, viz., simple roasting yielding mainly antimony tetroxide, and volatilisation roasting yielding mainly antimony trioxide. In the former, reverberatory furnaces are employed, the flue gases passing through a condensing plant for the recovery of any antimony trioxide that may be formed.

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  • Antimony Mining And Processing Methods

    antimony ore blocks the volatilization of roasting, (2) sulfide antimony ore... Read more Metals and Mining - Jewish Virtual Library Antimony is also mentioned. The metals are referred to in various contexts, including methods of mining, metallurgical ...

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  • Control Techniques for Lead Air Emissions, Volume II: .

    Roasting dries the concentrate and volatilizes some impurities, About 1 Mg (1.1 tons) of the concentrate is treated with addition of 150 kg fluxes (330 Ib) and 740 kg of air (1630 Ib) to produce 900 kg of calcined product (1980 Ib).7 In the roasting of copper sulfide

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  • Roasting - an overview | ScienceDirect Topics

    Oxidation roasting is often used in sulfide ore smelting. It is used to remove the sulfur ore, arsenic, antimony, and other harmful impurities in ore. In oxidation roasting, the sulfide ore is first decomposed into low-valence sulfide and sulfur, and then the oxide is

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  • Roasting Iron From Antimony Ore

    For roasting sulphide ores two methods are used, viz., simple roasting yielding mainly antimony tetroxide, and volatilisation roasting yielding mainly antimony trioxide. In the former, reverberatory furnaces are employed, the flue gases passing through a condensing plant for the recovery of any antimony trioxide that may be formed.

    Get Price
  • Antimony Mining Techniques

    antimony mining techniques-- China Mining Equipment CO.,Ltd. minor metals trends i antimony 2008 try mining it yourself . 3 jan 2008 when possible, they are mined by open pit methods. underground antimony mines are typically ...

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  • Gold Ore Roasting Techniques

    In the case of many complex gold and silver ores roasting before cyanidation is essential if satisfactory extraction of the precious metals is to be obtained. In such cases no practical amount of grinding or prolonged contacting of the raw ore with cyanide solution will affect more than a certain low extraction; in other cases, while the extractions may be acceptable, the consumption of ...

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  • Antimony Mining Techniques

    antimony mining techniques-- China Mining Equipment CO.,Ltd. minor metals trends i antimony 2008 try mining it yourself . 3 jan 2008 when possible, they are mined by open pit methods. underground antimony mines are typically ...

    Get Price
  • A simple method for the recovery of selenium from copper anode slime sample using alkaline roasting .

    antimony that present in anode slimes dissolved in 0.4 M KOH. Then, the alkaline roasting of anode slimes in the presence of Na 2 CO 3 solubilized selenium. Various parameters such as time and temperature of alkaline roasting were studied. The results

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  • Roasting Iron From Antimony Ore

    For roasting sulphide ores two methods are used, viz., simple roasting yielding mainly antimony tetroxide, and volatilisation roasting yielding mainly antimony trioxide. In the former, reverberatory furnaces are employed, the flue gases passing through a condensing plant for the recovery of any antimony trioxide that may be formed.

    Get Price
  • mining process antimony china china

    A Brief History of Antimony in China Amspec The Herrenschmidt process was an improvement to volatilization roasting techniques known at the time. Once they successfully acquired the Herrenschmidt process, Wah Chang applied for and received a Chinese ...

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  • mining process antimony china china

    A Brief History of Antimony in China Amspec The Herrenschmidt process was an improvement to volatilization roasting techniques known at the time. Once they successfully acquired the Herrenschmidt process, Wah Chang applied for and received a Chinese ...

    Get Price
  • Antimony | Amspec

    Unfortunately for Wah Chang, a new fireclay Chinese volatilization roaster was soon developed by smelter operators with experience in volatilization roasting techniques. It suddenly became feasible for other companies to produce high quality antimony using low-grade ore as the raw material.

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  • Roasting - an overview | ScienceDirect Topics

    Oxidation roasting is often used in sulfide ore smelting. It is used to remove the sulfur ore, arsenic, antimony, and other harmful impurities in ore. In oxidation roasting, the sulfide ore is first decomposed into low-valence sulfide and sulfur, and then the oxide is

    Get Price
  • Improved Smelting and Refining Processes for Production .

    The long-established Herrenschmidt shaft furnace has been enlarged and modified into a Chinese-style antimony oxide furnace for volatilization roasting with use of high-temperature volatilization. Lower fuel consumption, reduced smelting costs and a higher-grade product have resulted.

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  • Environmental Code of Practice for base metals smelters .

    Roasting to completion eliminates the sulphur and produces the metal oxide for reduction by carbon or carbon monoxide or for leaching in a sulphuric acid solution followed by electrowinning. Incomplete roasting is used to remove excess sulphur in copper and nickel sulphides in preparation for the matte smelting process.

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  • WO2013120132A1 - Process for zinc oxide production .

    A process for recovering zinc oxide from a zinc ore, the process including the steps of: leaching the zinc ore with an alkaline lixiviant comprising an aqueous mixture of NH 3 and NH 4 Cl, or ionic equivalent, having a NH 4 Cl concentration of between about 10 g/L ...

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  • Control Techniques for Lead Air Emissions, Volume II: .

    Roasting dries the concentrate and volatilizes some impurities, About 1 Mg (1.1 tons) of the concentrate is treated with addition of 150 kg fluxes (330 Ib) and 740 kg of air (1630 Ib) to produce 900 kg of calcined product (1980 Ib).7 In the roasting of copper sulfide

    Get Price
  • Antimony Mining Methods

    antimony mining techniques-- China Mining Equipment CO.,Ltd. minor metals trends i antimony 2008 try mining it yourself . when possible, they are mined by open pit methods. underground antimony .

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  • roasting antimony sulfides - AnnaSweetHome

    In roasting the ore or ore concentrate is treated with very hot air This process is generally applied to sulfide minerals During roasting the sulfideis converted volatilization roasting techniques for antimony

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  • The metallurgy of antimony - ScienceDirect

    17/7/2012· The oxide volatilization process to recover additional antimony usually treats the residue, containing 12–30% antimony. The liquated product, called crude, liquated or needle antimony, is sold as such for applications requiring antimony sulfide, or is converted to metallic antimony by iron precipitation or careful roasting to the oxide followed by reduction in a reverberatory furnace.

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  • Antimony Recovery from End-of-Life Products and .

    These techniques lead to a strong concentration of the antimony, which can then be used as a source of antimony, when renewing or regenerating the sorbent or filter. The most common treatment techniques for antimony removal are flocculation–coagulation followed by filtration or sedimentation, or the use of adsorbents [ 182 ].

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  • Antimony Ore Melting Furnance - Benjamin Wallinger

    Antimony roasting plant antimony trioxide amspec antimony trioxide amspec kr amspec the herrenschmidt process was an improvement to volatilization roasting techniques a number antimony plants were antimony roasting furnace plant design pdf crude ...

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