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2022年2月1日 Results of an investigation aimed at optimizing the fire refining process for purification and extraction of antimony into a high-grade commercial metallic product are presented. Various refining agents were used for refining from lead, tin, iron, and arsenic.
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2024年11月1日 The existence of Pb in crude antimony oxide powder(CAOP) hinders the further smelting and recovery of Sb and leads to some environmental problems. Therefore, the
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Antimony oxide was precipitated from the PLS via the hydrolysis process. The product composed of 81.43% Sb, 16.23% O, and 2.34% Fe. This study aimed to investigate the recovery of
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2024年1月1日 The X-ray diffraction (XRD) of crude antimony show that the primary phase is antimony (Fig. 1 (b)). Inductively coupled plasma mass spectrometry (ICP-MS) was used to
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2014年9月1日 This work uses a nitric acid leaching method to remove As from crude antimony trioxide. Arsenic oxide and antimony oxide are respectively converted to soluble H3AsO4 and
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2022年2月1日 Results of an investigation aimed at optimizing the fire refining process for purification and extraction of antimony into a high-grade commercial metallic product are
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2023年6月7日 The powdery crude antimony trioxide is reduced by a carbonaceous reductant in a reverberatory furnace at 1,000–1,200 °C to produce crude antimony. Crude antimony can be
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2019年10月30日 The main purpose of meltings the antimony raw materials is the transfer of the main substance of ore – antimony in a less contaminated by iron metal. Durcrudeing melting,
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2024年2月3日 The process of obtaining antimony trioxide from Unified Mining Company S.A. (EMUSA) has two production lines. The refining slag from the second production line was
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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.
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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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2006年7月15日 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. Preparation, properties, and usage of the antimony halides, oxides, sulfides, and other compounds, as well as organometallic compounds are described.
خبير الاتصال2020年5月1日 The pyrometallurgical routes consist of roasting, oxide volatilization and then carbothermic reduction of Sb 2 O 3 or ... Method for removal of lead and arsenic in crude antimony vacuum refining process. CN104328289A (2014) Google Scholar [10] Y. Dai, B. Yang. Vacuum metallurgy for nonferrous metals and materials.
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2023年7月1日 Trans. Nonferrous Met. Soc. China 33(2023) 2216−2230 Antimony and arsenic substance flow analysis in antimony pyrometallurgical process Ke WANG, Qin-meng WANG, Yuan-lin CHEN, Zhong-chen LI, Xue-yi GUO School of Metallurgy and Environment, Central South University, Changsha 410083, China Received 23 February 2022; accepted 31 July
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2014年9月1日 This work uses a nitric acid leaching method to remove As from crude antimony trioxide. Arsenic oxide and antimony oxide are respectively converted to soluble H3AsO4 and insoluble antimony(III ...
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This involves initially producing Sb 2 O 3, followed by reduction smelting to yield crude antimony, and culminating in the alkaline refining of crude antimony to produce refined antimony. The reduction smelting technology most commonly utilizes the antimony oxide powder reduction in a reverberatory furnace.
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2023年12月1日 Currently, the electro-refining process of crude lead employs fluosilicic acid (H 2 SiF 6) [10], fluoboric acid [11], perchloric acid [12] and alkaline system [13] — among which the H 2 SiF 6 system (Betts method) is the most mature and widely deployed [10].But the H 2 SiF 6-based lead electro-refining is suffering environmental burden.This is attributed to the high
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Additionally, there is a study focusing on the characterization of crude products containing high levels of As and Pb obtained from an antimony smelting plant, which contains about 82–82.5 % Sb [48]. The removal of As in the crude product is achieved through HNO 3 leaching [49]. Unlike previous studies, the use of a different residue source ...
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L.G. Ye et al./ JMM 51 (1) B (2015) 97 - 103 temperature and does not cause volatilization of antimony because no water vapor generated. The reaction mechanism was studied by TG-DSC and
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2022年1月5日 Arsenic-alkali residue is a hazardous waste produced by the refining process of crude antimony in antimony smelting, and contains highly toxic sodium arsenate and a large number of residual alkali ...
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2015年1月1日 Conventional antimony metallurgy had the problems of low-concentration SO2 pollution and high energy consumption. This work proposed a new clean metallurgy method for antimony extraction.
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2017年11月1日 the antimony losses in the form of antimonate sodium compounds. The refining agent pre-dewatering decreased the evolution of gases during refining and the loss of antimony with gases. The certain amount of refining reagent or flux was added to 200 g of crude antimony containing 3.46% of lead and 1.48 % of tin. The mixture was placed
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2021年8月1日 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 generally found to exist in the +3 and + 5 oxidations states (Herath
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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 flame
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2021年12月10日 The carbothermal reduction method has been used to produce antimony metal from Sb 2 O 3-rich materials such as crude antimony oxide and antimony dust (Liu et al., 2014; Ye et al., 2019). Thus, this method also has the potential to recover Sb from CATO and AS. ... PbO and FeO) are inevitable, suggesting the reduced metal will be crude antimony ...
خبير الاتصالThis involves initially producing Sb 2 O 3, followed by reduction smelting to yield crude antimony, and culminating in the alkaline refining of crude antimony to produce refined antimony. The reduction smelting technology most commonly utilizes the antimony oxide powder reduction in a reverberatory furnace.
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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 content.
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2018年4月5日 Generally, removal of antimony from high-antimony lead bullion was treated in reference to the refining process of crude lead with lower antimony content. At present, lead produced by the pyrometallurgical refining process accounts for about 70% of the refined lead in the world and only some of countries, such as Canada, Peru, Japan and China ...
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2022年2月1日 First, the reduction smelting of antimonial dust is carried out in an oxygen-rich bottom blow furnace to enrich antimony and lead in the crude alloy. The antimony and lead contents in the slag can ...
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