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2023年7月1日 The results show that the resource efficiency of antimony is 89.21%, and the recovery rates of antimony in volatilization smelting, reduction smelting, and refining are 78.79%, 91.00%, 96.06%, respectively. At the same time, for 1 t of antimony produced,
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2024年2月3日 Line 2, is called the refining line, is intended for the production of high-quality antimony trioxide. In this line, approximately 3 t/day of “crude oxide” with an
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2022年2月1日 One promising raw material for the efficient production of antimony is sodium antimonate, a product of alkaline refining of crude lead. During the Soviet period,
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2016年2月8日 This product is called crude, liquated, or needle antimony. The liquation residue (12–30 % Sb) can be treated to further improve the recovery of antimony. The
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2021年8月1日 Antimony finds use in many industrial applications such as in fire-retardant plastics, lead acid batteries, Polyethylene Terephthalate (PET) production (as
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2022年8月12日 Abstract. 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 reduction
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2021年12月10日 Thus, this method also has the potential to recover Sb from CATO and AS. However, the reduction reactions of other oxides (e.g., As 2 O 3, PbO and FeO) are
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2006年7月15日 Refining and fine purification techniques are used for production of pure antimony metal. There is growing demand for extremely pure antimony. Antimony oxide
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2022年2月1日 Antimony. Article. Fire Refining of Rough Antimony from Impurities for Obtaining High-Grade Antimony. February 2022. Metallurgist 65 (S4):1-9. DOI:
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2016年7月7日 A new process for one-step extraction of antimony in low temperature from stibnite concentrate by reductive sulfur-fixation smelting in sodium molten salt, using iron oxide as sulfur-fixing agent, was presented.
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2016年4月18日 The main purpose of this study was to separate lead from crude antimony through an oxidation pyro-refining process and by using sodium metaphosphate as a lead elimination reagent. The process parameters that will affect the refining results were optimized experimentally under controlled conditions, such as the sodium
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2016年2月8日 Antimony has become an increasingly critical element in recent years, due to a surge in industrial demand and the Chinese domination of primary production. Antimony is produced from stibnite ore (Sb2O3) which is processed into antimony metal and antimony oxide (Sb2O3). The industrial importance of antimony is mainly derived from its use as
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1991年9月15日 Our process involves chlorination of commercial grade Sb metal, distillation of crude SbCl3 with 6N HCl, conversion to oxide , reduction of antimony oxide to metal with hydrogen and zone refining.
خبير الاتصال2006年7月15日 Refining and fine purification techniques are used for production of pure antimony metal. There is growing demand for extremely pure antimony. Antimony oxide is being used as flame retardant in increasing quantities. Antimony is a component of many lead and tin alloys, which are important materials for making bearings and solders.
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2021年8月1日 1. Antimony – general aspects. Antimony comes under group 15 of the periodic table with ground state electronic configuration [Kr]4d 10 5s 2 5p 3. 121 Sb (57.21% abundance) and 123 Sb (42.7% abundance) are the two stable isotopes of antimony. Antimony can possess different oxidation states (such as +5, +3, 0, −3 and −5), but
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2006年7月15日 Refining and fine purification techniques are used for production of pure antimony metal. There is growing demand for extremely pure antimony. Antimony oxide is being used as flame retardant in increasing quantities. Antimony is a component of many lead and tin alloys, which are important materials for making bearings and solders.
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Antimony electrorefining aqueous electrolysis refining and molten salt electrolysis refining two methods, aqueous electrolysis refining is often used in refining crude antimony containing precious metals, to recover gold and silver. Molten salt electrolysis refining since the 1970 s, has been at the industry and industrial test stage, is a kind ...
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2022年2月1日 As a result of research, a method for fire refining of rough antimony was developed to obtain a high-grade metal with a content of not less than 99.65% Sb and not more than 2000 ppm Pb versus (1.4 ...
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2018年4月5日 Nowadays, the Sb-content in the lead storage batteries is approximately 0.5–3 wt%. However, there are few specific reports about the method of removing antimony from high-antimony lead bullion. Generally, removal of antimony from high-antimony lead bullion was treated in reference to the refining process of crude lead with lower antimony
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Fire Refining of Rough Antimony from Impurities for Obtaining . 202221Tin is oxidized in the system to form refining compounds and slagged in the oxide form. A loss of antimony with the slag phase was determined to be a consequence of complex phosphate...
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2023年2月27日 In this work, a two-step vacuum metallurgy method was proposed to produce Sb2S3 from complex lead-antimony sulfide ore. As revealed from the experimental results, jamesonite (Pb4FeSb6S14) is overall decomposed into PbS, Sb2S3 and FeS at 750 °C. The first step vacuum distillation was performed at 650 °C for 80 min, by which the
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2020年7月1日 Section snippets Materials. The raw material used in this study was crude As 2 O 3 recovered from arsenic-alkali residue in an antimony smelting plant in Hunan, and its related chemical content by ICP and chemical analysis is given in Table 1. As can be seen from Table 1, the purity of crude As 2 O 3 is 93.6 wt.%, which is lower than the
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2022年11月1日 The antimony diversity of supply of both mining and refining is low. • Almost 70% of Sb is mined as by- or co-product. • Companion metals can both have higher and lower resilience. • An additional 25% of Sb production comes from post-consumer recycling. • Stockpiling has played a role in dampening and exacerbating supply disruptions.
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Refining Crude Antimony Oxide The saturated vapour pressure of antimony and its sulphide and oxide at different temperatures are shown in figAs can be seen from fig2, as the temperature increases, the saturated vapour pressure of sb 2 s 3, sb 2 o 3 and sb increases gradually, and the growth trend of sb 2 s 3 is the most rapidWhen the ...
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a process for the removal of arsenic antimony and tin impurities from the crude copper comprising: (a) adding to molten copper 4 to 12% calcium oxide bases on the weight of said crude copper and a substance which tends to become demixed from copper oxide in addition to its fluxing properties consisting essentially of flusrspar and forming a ...
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2015年1月1日 Thermogravimetric researches of process of recovery melting of the furnace charge consisting of an antimony concentrate, lead oxide and coke as a result of which it is established that process of ...
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2021年6月23日 Refining of crude nickel by the Mond carbonyl process is based on this principle. During extraction of nickel, a sulfide ore [pentlandite (NiFe) 9 S 8 ] containing about 1–3% Ni and some Co, Cu, and Fe is processed to obtain Ni 3 S 2 , which is dead roasted to nickel oxide.
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2023年6月7日 This includes three processes: pre-smelting treatment of tin concentrate, reduction smelting, and crude tin refining. Pre-Smelting Treatment of Tin Concentrate. The processes such as roasting, magnetic separation, leaching, and sintering are used to reduce or remove the impurities such as sulfur, arsenic, antimony, lead, iron, and tungsten.
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2020年4月1日 Lead oxide could be used as an effective reagent of arsenic removal in aqueous chloride solution. ... Arsenic-alkali residue is a hazardous waste produced by the refining process of crude antimony ...
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