No. 1688, Gaoke East Road, Pudong new district, Shanghai, China.
No. 1688, Gaoke East Road, Pudong new district, Shanghai, China.
The main objectives of this study are: (1) to assess the soil resilience level at the XKS antimony smelting site using the modified NPI method based on the MDS model, which is obtained from the total data set (TDS) containing diverse microbial indicators; (2) to evaluate the soil contamination level represented by the content of heavy metals ...
The principal component analysis (PCA) and positive matrix factorization (PMF) methods differed by more than 20% in the analysis of the contribution of antimony smelting activities and solid waste pollution sources, suggesting the differences in the models themselves and in the uncertainty parameters chosen during the application.
The mercury smelting method widely used in China is to roast the mercury concentrate in a rotary distillation furnace below the melting temperature of the charge, so that the mercury sulfide in it can be oxidized to produce mercury vapor and separated from gangue. The production process is adaptable and the process is relatively stable.
zinc, lead, arsenic, antimony, and coal (Fan et al. 2004). The antimony ore was introduced into the carbonaceous rocks of the Middle Devonian-age Shetian Formation. These rocks contain 15–35 ppm of antimony, compared to the average Sb content of 0.2–0.5 ppm in the earth's crust, while the rocks of the broad region around Xikuangshan ...
Smelting slag is a byproduct produced in the smelting process of the blast furnace in the blast furnace volatilization smelting method. Crude antimony and antimony matte are mainly obtained by this process. Table 3 shows the composition of typical melting slag.
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 …
Antimony is a rare strategic metal, and stibnite (Sb 2 S 3) is its primary smelting material.The existing smelting process is basically pyrometallurgy, accounting for > 95%. 1 At present, the process of oxidative volatilization of antimony sulfide in blast furnace and reductive smelting of antimony oxide in reverberatory furnace is mainly used to separate sulfur from the …
Arsenic-alkali residue (AAR) is produced by antimony refining with soluble arsenic and other valuable components contents, indicating its hazardous and resource value. …
The antimony smelting techniques that have been developed in Xikuangshan are typical of smelters in China. Traditional smelting methods have been improved since the 1940s, but several novel achievements have been introduced in recent years. The long-established Herrenschmidt shaft furnace has been enlarged and modified into a Chinese-style ...
Therefore, lead and antimony in jamesonite cannot be completely separated by physical beneficiation. Instead, smelting technology is generally used for their separation. Metallurgical researchers have developed various of crafts for the separation of lead and antimony, such as smelting, chlorination hydrolysis and sodium sulfide leaching method ...
Semantic Scholar extracted view of "Development of Antimony Smelting Technology in China" by Wei-feng Liu et al. ... A facile method for removing As through the destruction of the As–Sb solid solution structure from the dust using CaO under an oxidizing atmosphere was processed and the volatilization of arsenic was promoted.
Arsenic is a hazardous pollutant that has garnered considerable attention because of its potential for resource recovery and safe use. Arsenic and antimony have similar physico-chemical properties and are usually endowed in nonferrous metal ores (such as copper, zinc, lead, and tin) [14, 15], which enter a smelting system through mining and are enriched in soot, …
The loss and enrichment of heavy isotopes in the 0–10 cm and 10–25 cm layers of the antimony from smelting source in the polluted soil profile may be controlled by the adsorption process, while the enrichment of light isotopes in the 25–80 cm layer may be related to the reductive dissolution process. ... and help design more reasonable ...
The invention relates to a smelting production method of antimony xide. The method includes the following steps of: raising the furnace temperature of a smelting furnace to 700DEG C-900DEG C, pushing an antimony ingot into the furnace by a mechanical arm and then stopping heating, and introducing air into the furnace body, letting the oxygen in the air and the …
"Antimony resources are rich in china, its reserves and productions are ranking the first in the world. The Chinese antimony mineral resources are mainly existed in the form of three types, such as stibnite, antimony-gold ores andjamesonite. The antimonial dust that produced from lead smelting process is an important secondary antimony resource. The different …
The main process routes, that have been used at industrial scale, for antimony smelting from different ore types and grades are listed in Table 9. According to the literature, …
A large amount of solid waste has been produced by the smelting processes in the Xikuangshan area. Specifically, the antimony smelting activities have historically produced 2 × 10 5 tons of arsenic-alkali residue (AAR), the majority of which has not yet been properly handled (Li and Liang, 2010).Currently, the amount of AAR in the Xikuangshan area is increasing by 5 × …
The lack of advanced technology in antimony mining and smelting has resulted in unprocessed tailings, smelting slag, and residues being indiscriminately dumped. ... The article provides a comprehensive overview of the sources, hazards, and remediation methods of antimony-contaminated wastewater in antimony mining areas. It is found that the ...
The main methods, technological process, technological parameters and achievements in recent years are introduced of recovering arsenic, antimony and bismuth from by-products of copper smelting. In this paper, the impurity elements such as arsenic, antimony and bismuth in the copper smelting process were used as research objects.
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 xide in shaft furnaces, as shown in Figs. 1, 3, and 5, the xide being ...
The antimony smelter, when he wishes to determine the value of any parcel of ore—usually the sulphide—that may be offered for sale, practically has recourse to the smelting operation. That is, a quantity of 2 or 3 cwts. taken by his sampler having been obtained, he treats it under the immediate supervision of the foreman smelter as if it ...
This was because the slight isotope evaporated into the air in the smelting process. 3.4. Mixing process. ... Efficient removal method of antimony should be further study, and it important to note that bioremediation will be a promising method for removal of Sb in environmental systems (Li et al., 2013, ...
Smelting processes involve producing crude bismuth or bismuth alloys from bismuth-bearing materials, while refining processes involve removing impurities from crude bismuth to produce refined bismuth. Experts broadly divide the methods of bismuth separation and purification into two categories—pyrometallurgy and hydrometallurgy.
Lastly, antimony raw materials, such as antimony sulfide-Sb 2 S 3 containing 45–60% antimony, are liquefied by heating at 550–600 °C after which it is reduced to pure antimony metal. Historically, SO 2 release has been a major concern when smelting sulfidic ores, especially those containing antimony and arsenic as they are easily ...
Noble antimony is the carrier of precious metals in the antimony smelting system and has a very high added value. This study proposes a novel, green, and effective vacuum gasification process for purifying antimony and recovering precious metals from noble antimony. Saturated vapor pressure and separation coefficients (β) were used to qualitatively analyze …
The aim of the study was an assessment of the pollution level and identification of the antimony sources in soils in areas subjected to industrial anthropopressure from: transport, metallurgy and electrical waste recycling. The combination of soil magnetometry, chemical analyzes using atomic spectrometry (ICP-OES and ICP-MS), Sb fractionation analysis, …
Jamesonite is a significant complex mineral containing antimony, lead, iron and other elements. At present, the traditional smelting method has high sulfur dioxide pollution and low metal recovery. This paper puts forward a method of …
Antimony smelting is done through the pyrometallurgical process or the hydrometallurgical process, but mostly the pyrometallurgical process. This is mostly the …
Conventional cyanidation technology achieves low gold recovery when used to process refractory gold concentrate. Based on the geochemical characteristics of gold deposit mineralization, a new method is proposed herein for gold enrichment in antimony matte by smelting of refractory gold concentrate. The effects of the FeO/SiO2 and CaO/SiO2 ratios, …
Arsenic and antimony are separated during the copper smelting, laying the foundation for the subsequent recovery of arsenic from dust and antimony from slag, …
