Practice of Antimony Smelting in China BY CHUNG YU WANG E M A M HANKOW CHINA Methods of Smelting A Treatment of Poor Ore from 20 to 35 Per Cent Sb —The process of volatilizing roasting is always adopted to roast these products to the volatile trioxide in shaft furnaces as shown in Figs 1 3 and 5 the trioxide being
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 The influences of molten salt addition and composition ferric oxide dosage smelting temperature and duration on extraction efficiency of antimony were
Antimony Sb is a toxic metalloid that belongs to group 15 of the Periodic Table of the Elements Gebel 1997; Scheinost et al 2006 Sb III and Sb V are the most prevalent oxidation states of Sb in the natural environment and biota Filella et al 2002a Antimony is geochemically categorized as a strong chalcophile occurring with sulfur and some heavy
Antimony ranks among the top ten non ferrous metals and is a vital basic material in the national economy Its applications span the automobile equipment manufacturing aerospace and military industries [3] Currently antimony smelting predominantly relies on the pyrometallurgical method specifically the volatile smelting reduction smelting
The chemical properties of antimony and arsenic are similar so they are often associated in ores Li et al 2016 Wilson et al 2004 In the process of antimony smelting arsenic in antimony ores can enter crude antimony
Antimony Sb is a naturally occurring metalloid capable of forming toxic products is a suspected carcinogen Gebel 1997; ATSDR 2019 and has been classed as a priority substance ATSDR 2017 Antimony can be enriched in soils as a result of the mobilization of antimony from minerals and waste antimony ore and activities including mining mineral
Due to its chronic toxicity and carcinogenicity the enrichment of antimony Sb in the environment is harmful to humans and organisms [67] Smelting activities in mining areas are the main source of Sb pollution [27] [5] Because Sb and arsenic As have similar geochemical properties and often co occur in ore deposits the Sb smelting sites are also
Antimony Sb is a metalloid element with potential toxicity and carcinogenicity and is mainly in the form of 27°44′47′N 111°28′47′E Sample was collected by chessboard sample method to ensure that it was mixed evenly and then it was kept at 4 °C in dark The Sb rich smelting slag was pulverized and sieved to less than <
The separation of lead and antimony via two methods namely multi step condensation and one step multi stage condensation was developed The results show that the initial decomposition temperature of jamesonite is higher than 600 °C in argon and about 500 °C at 10 Pa The final decomposition products are antimony trisulfide lead sulfide and
In this work we studied the evaporation of antimony trioxide Sb 2 O 3 from an antimony slag by bubbling nitrogen gas in the temperature range 1000 1300 ° were carried out at gas flow rates of 20 60 l/h for 70 min The slag evaporation ratio and Sb recovery were evaluated by a gravimetric method
In this study a combined process of acidic oxidation leaching and SO 2 reduction was proposed to purify crude As 2 O 3 recovered from antimony smelting arsenic alkali residue The effects of various process factors on crude As 2 O 3 leaching were investigated based on the thermodynamic analysis The results showed that the leaching efficiency of arsenic was %
7] As the world s largest antimony Sb producer China produces on average 80% of global Sb annually [8] Xikuangshan XKS in Hunan the world s largest Sb mine is reported to produce 25% of the world s total The XKS mine has been mining and smelting for almost 120 years Its longtime and large scale mining and smelting
DOI / Corpus ID 218960660; Sustainable phase conversion method for antimony extraction and sulfur conservation and waste treatment at low temperature
The feasibility of a new method for separating arsenic from arsenic—antimony bearing dusts using CuS was put forward in which Sb was transformed into Sb 2 O 4 and Sb 2 S 3 that stayed in the roasted calcine while As was volatilized in the form of As 4 O factors such as roasting temperature and CuS addition amount were studied using XRD EPMA and
A strategy for the efficient recovery of highly pure copper and antimony metals from electronic waste e waste was implemented by the combination of hydrometallurgical and electrochemical processes The focus is on copper recovery as the main component in the leached solution whereas the antimony recovery process was established as a purification step in order to
There are two main types of modern antimony production methods—pyrometallurgy and hydrometallurgy [1 2 3] At present the former is the main The vast majority of antimony smelting enterprises have been using the traditional blast furnace volatile reverberatory furnace reduction process which is of low environmental protection high
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 % Sb and not more than 2000 ppm Pb versus
Antimony has two stable isotopes 121 Sb and 123 Sb with an average abundance of % and % respectively in the natural environment Rouxel et al 2003 With a Multicollector Inductively Coupled Plasma Mass Spectrometer MC ICPMS Aston 1923 first reported the abundance of Sb isotopes and then Rouxel et al 2003 performed precise
Methods for chemical analysis of antimony concentrates Part 8 Determination of sulfur content conbustion neutralization titrimetric method Non ferrous metals industry standards YS/T 2009 Google Scholar Mihajlovic et al 2007 I Mihajlovic N Strbac Z Zivkovic R Kovacevic M Stehernik
This study aimed to introduce a comprehensive process for separating and recovering antimony from a complex stibnite concentrate Antimony is first leached through a chlorination oxidation procedure to obtain SbCl 3 solution Antimony is then recovered in the forms of cubic crystal Sb 2 O 3 % high purity cathode antimony % crude cathode
Antimony production involves hydrometallurgy and pyrometallurgy the latter being still dominant The conventional extraction of antimony from stibnite and jamesonite involves a two step pyrometallurgical process comprising volatilization roasting and carbothermal smelting Ouyang et al 2019; Tian et al 2016 The sulfide antimony ore is first volatilized and
The results demonstrate that the sulfuration rate was the highest namely % when the molar ratio of sulfur to antimony was 3 1 the sulfur source temperature was 400 °C the antimony source
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