In this study, vacuum displacement reaction technology, a new process for removing antimony from high-antimony lead melts, was investigated. During this process, lead oxide was added to the system and antimony from lead melts was converted into antimony trioxide, which easily was evaporated under vacuum so that antimony was removed from lead melts.
The continuous process of the present invention is designed so that tin can be removed from lead in the presence of antimony without becoming contaminated with substantial quantities of antimony. Removal of tin is conventionally effected on a batch basis by providing a pool of molten lead at about 500° C., stirring in air and possibly also ...
2017-11-1 · simultaneous removal of tin and lead from the crude antimony. X-ray phase analysis on the skimmed slags showed the presence of antimony and lead in the form of phosphate compounds, and tin in the form an oxide. In view of the high affinity for oxygen, tin oxidizes at the beginning the process and passes into a slag
Antimony dross containing 8.2% antimony, obtained from the refining section of a lead plant was studied on a bench scale for the recovery of antimony oxide and subsequent synthesis of potassium ...
2014-5-18 · Pure lead produced in secondary lead smelter from battery scrap which contains different level of alloying elements (S, Cu, Ni, As, Sb, Bi, Ag, Au, etc.), purification of lead in this research means mainly removing antimony Sb, arsenic As and tin Sn by oxidation process. The research gets antimony as …
2018-5-24 · Antimony-bearing dust, a byproduct of the lead-smelting process, is an important secondary resource of antimony. A clean production process for producing NaSb(OH) 6 by oxidation in an NaOH solution has been proposed to solve the difficulties of recovering antimony from antimony-bearing dust. First, antimony trioxide in the dust was leached into a sodium hydroxide solution.
2018-4-5 · In this study, vacuum displacement reaction technology, a new process for removing antimony from high-antimony lead melts, was investigated. During this process, lead oxide was added to the system and antimony from lead melts was converted into antimony trioxide, which easily was evaporated under vacuum so that antimony was removed from lead melts.
US2335569A US435148A US43514842A US2335569A US 2335569 A US2335569 A US 2335569A US 435148 A US435148 A US 435148A US 43514842 A US43514842 A US 43514842A US 2335569 A US2335569 A US 2335569A Authority US United States Prior art keywords antimony lead slag bath litharge Prior art date 1942-03-18 Legal status (The legal status is an assumption and is not a legal …
Refining dross is the result of lead refining process where impurities like copper, tellurium, arsenic-antimony-tin, silver, zinc and bismuth in sequence from lead bullion. Composition of each type of dross varies and is subjected to specific refining steps and raw material contents.
2021-10-20 · In this study, vacuum displacement reaction technology, a new process for removing antimony from high-antimony lead melts, was investigated. During this process, lead oxide was added to the system and antimony from lead melts was converted into antimony trioxide, which easily was evaporated under vacuum so that antimony was removed from lead melts.
We claim: 1. In a process for removing tin, arsenic and antimony from molten lead by means of oxygen or oxygen-containing gas mixtures blown into the molten lead from at least one oxygen gas nozzle, the improvement being in supplying an inert gas which does not react with the lead melt and flowing the inert gas along to oxygen nozzle to create an inert gas sheath at the oxygen nozzle outlet ...
US1535743A US514658A US51465821A US1535743A US 1535743 A US1535743 A US 1535743A US 514658 A US514658 A US 514658A US 51465821 A US51465821 A US 51465821A US 1535743 A US1535743 A US 1535743A Authority US United States Prior art keywords antimony lead bath bullion dross Prior art date 1921-11-12 Legal status (The legal status is an assumption and is not a legal …
2015-2-2 · In order to solve the shortcomings when removing lead from crude antimony in the traditional antimony smelting, a new process was provided using NaPO3 as lead elimination reagent to yield phosphate slag, and it was removed by floating on the surface of the liquid antimony. Reaction mechanism was clarified by using the TG-DTA and XRD techniques ...
Refining process for removing antimony from lead bullion, Jan 10, 1984· Conventional methods of refining lead bullion containing antimony have included the use of refining reagents such as air, oxygen-enriched air, lead oxides, nitre and caustic, and aluminum, at high temperatures in excess of 1100° F …
2020-2-27 · Antimony Arsenic a b s t r a c t When classifying impurities in commercial pure antimony (Sb, 99.8%), arsenic (As) and lead (Pb) should be brought to the forefront consideration. Due to the known difficulty of As removal through zone refining, it is meaningful to investigate its separation tendency
Antimony-bearing dust, a byproduct of the lead-smelting process, is an important secondary resource of antimony. A clean production process for producing NaSb(OH) 6 by oxidation in an NaOH solution has been proposed to solve the difficulties of recovering antimony from antimony-bearing dust. First, antimony trioxide in the dust was leached into a sodium hydroxide solution.
Refining process for removing antimony from lead bullion, Jan 10, 1984· Conventional methods of refining lead bullion containing antimony have included the use of refining reagents such as air, oxygen-enriched air, lead oxides, nitre and caustic, and aluminum, at high temperatures in excess of 1100° F …
2021-8-3 · In this study, vacuum displacement reaction technology, a new process for removing antimony from high-antimony lead melts, was investigated. During this process, lead oxide was added to the system and antimony from lead melts was converted into antimony trioxide, which easily was evaporated under vacuum so that antimony was removed from lead melts.
The presented research examined five adsorbents, i.e., zeolite 4A, a mixture of three zeolites (4A, 13X, and ZSM-5), natural zeolite (tuff), activated carbon, and peat, and their potential capability for removal of exceeded ions of lead (Pb), antimony (Sb), sulphates (SO42−), and fluorides (F−) from real wastewater generated in the crystal glass industry, which was previously treated in ...
An improved process for refining lead bullion containing antimony, in which the bullion is initially heated in a refining vessel to about 25° F. (14° C.) above the bullion melting point, and is thereafter kept molten primarily by exothermic process reactions. The process includes the steps of melting the lead-antimony bullion, agitating the bullion, adding caustic soda and metallic sodium to ...
2021-5-15 · 1. Introduction. With the most abundant reserves, China is the most important antimony (Sb) producer in the word during the past decades, accounting for above 80% of the world''s share .Meanwhile, antimony is widely used in kinds of products, including fire retardants, ceramics, batteries and plastics evitably, the mining-smelting activities of Sb and relevant industries in China bring ...
2016-5-24 · Antimony metal is used as a hardener in lead alloys such as the lead electrodes in lead-acid (LA) batteries [1, 7]. The average antimony content of automotive battery alloys has declined from 7 to 1.6 % in recent years, as Ca, Al, and Sn alloys have been used as replacements. However, the increasing car sales partly compensate for the declining use
2016-2-8 · The removal of antimony from antimony dust captured during the direct lead smelting process has been studied by Liu et al. They proposed a pyrometallurgical process based on reduction smelting, alkaline refining, and oxidation to extract …
The aim of this work is to investigate the feasibility of the removal of antimony from model acid solutions simulating copper electrorefining and spent lead/lead oxide acid battery solutions by an ...
2018-8-27 · The lead recovered by electrolysis is free of antimony and suitable for producing maintenance-free batteries. In previous bench-scale studies lead was recovered from grids and lugs by electrorefining and from battery sludge by leaching …
Refining process for removing antimony from lead bullion . United States Patent 4425160 . Abstract: An improved process for refining lead bullion containing antimony, in which the bullion is initially heated in a refining vessel to about 25° F. (14° C.) above the bullion melting point, and is thereafter kept molten primarily by exothermic ...
2021-7-6 · Material Characterization. Arsenic-containing lead concentrate sample was obtained from Asia Zarin Madan Co., Zanjan province, Iran. The chemical compounds including NaOH, H 2 SO 4, and Na 2 S.xH 2 O used as pH adjuster and leaching agent were obtained in analytical grade and purchased from MERCK Co. and ACROS Co., respectively. For the precipitation process, ferric sulfate (Fe 2 (SO 4) 3) …
2014-6-6 · 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 of antimonial dust is carried out in an oxygen-rich ...
2018-4-5 · 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.
· Dec 2007. Location. soda springs Id. Posts. 28,089. if it''s just antimony you can swage it and still retain the softness. you might could use a borate to capture and remove the antimony from the alloy. but to do it at home would take about 30 pounds of borate to clean 15 pounds of …
2004-6-15 · Electrical energy requirement for the whole process is reported to be 0.5 kWh kg −1. Recently, work has been done for antimony removal from spent lead/lead oxide batteries using divided and undivided cells and carbon cloth, lead, platinum, titanium, copper and graphite particle electrodes . The best results have been achieved in divided cell ...
2021-10-29 · 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 …
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