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, antimony-containing raw materials were processed in Kyrgyzstan at the Kadamzhai
خبير الاتصال2023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.
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
خبير الاتصال2016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
خبير الاتصال2023年7月1日 Smelting slag, antimony matte, and crude antimony are obtained from the melt produced in the volatilization smelting process through forehearth treatment. The
خبير الاتصال2021年12月10日 This paper reports a complete characterization of three typical Sb-containing metallurgical residues, namely crude antimony trioxide, lead softening slag,
خبير الاتصالIn order to solve the problem of lead removal from crude antimony in the traditional antimony refining process,NaPO 3 was introduced as a lead elimination reagent to generate
خبير الاتصال2022年8月12日 Antimony trioxide (ATO or antimony white) is now the most important antimony compound. Commercial grade is typically a fine and white powder, containing
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
خبير الاتصال2023年7月1日 Smelting slag, antimony matte, and crude antimony are obtained from the melt produced in the volatilization smelting process through forehearth treatment. The crude antimony is then treated in a cupellation furnace to produces Sb−Au alloy, antimony oxide, and ash slag. The Sb−Au alloy is sent to the gold production system.
خبير الاتصال2014年6月6日 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 smelting
خبير الاتصال2024年2月3日 In line 1 of antimony oxide production shown in Fig. 1, the operating temperature is 1000 \(^\circ {\text{C}}\) for the removal of sulfur and obtaining the volatile “crude oxide” from a concentrate with an average grade of 55% Sb that avoids a higher frequency of slag bleeding. Line 2, is called the refining line, is intended for the
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.
خبير الاتصال2016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
خبير الاتصال2021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
خبير الاتصال2020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 ...
خبير الاتصال2022年1月15日 In summary, the synthesized crude antimony trioxide mainly contains antimony arsenic oxide, senarmontite and cervantite. A new compound with a chemical formula of Fe 2 O 3 4(Pb, Cu)Sb 2 O 4 was identified in the sample, and this is probably formed through the reaction between Fe 2 O 3 and (Pb, Cu)Sb 2 O 4 during the process
خبير الاتصال2021年10月1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.
خبير الاتصال1991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 الاتصالa 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 ...
خبير الاتصالAntimony 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 ...
خبير الاتصال2020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
خبير الاتصالtemperature reaction NaPO3 content and NaNO3 at 1023K (750oC) for of lead in at 60% and 3% respectively. 20 min, dosage of. and 98.85% conditions, meet of refined antimony the requirements were ...
خبير الاتصال2019年1月2日 The carbothermal reduction method has been used to produce antimony metal from Sb 2 O 3rich materials such as crude antimony oxide and antimony dust Ye et al., 2019). Thus, this method also has ...
خبير الاتصالcrude antimony oxide refining – Crusher South Africa (crude antimony oxide), it’s a refining step. Copper refining Jaw Crusher. Impact Crusher. Jaw Crusher – copper refining machinery for sale. jaw crusher is one of the main type of primary crusher in ore proessing plants. It can be used for processing aggregate, asphalt ...
خبير الاتصال2014年6月6日 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 smelting
خبير الاتصال2018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
خبير الاتصال2022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 ...
خبير الاتصال2019年2月13日 The saturated vapour pressure of antimony and its sulphide and oxide at different temperatures are shown in Fig. 2.As can be seen from Fig. 2, 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 rapid. When the temperature is below 1201
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