by products from roasting antimony

Low-Temperature Microwave Carbothermic Reduction Roasting of

2022.1.25  The experimental results indicated that the reduction course of antimony was Sb2S3 → Sb2O3 → Sb and sulfur was fixed in the form of ZnS. The optimum conditions were roasting temperature of 500°C, 1.5 times the amount of ZnO, 30% carbon powder,

Direct preparation of micro and nano antimony trioxide using

2022.8.15  Antimony sulfide (Sb 2 S 3) concentrate is the main source for the production of antimony oxides and metallic antimony. Few researches have focused on

Recovery of antimony from antimony-bearing dusts

2018.8.13  Abstract. This paper mainly investigated the antimony recovery from antimony-bearing dusts through reduction roasting process after the dust firstly

Kinetic studies for sulfur-fixing and roasting reduction of

2019.1.1  The composition of the roasting product at 900 °C has shifted to antimony and ZnS, and antimony is spherical. The metal antimony is melted because the

Separation of arsenic and antimony from dust with high

2018.5.1  The separation of arsenic and antimony from dust with high content of arsenic was conducted via a selective sulfidation roasting process. The factors such as

Antimony Metallurgy SpringerLink

2023.6.7  Antimony metallurgy is the technology that extracts antimony metal from antimony ores or produces antimony compounds. Antimony was discovered in the

Direct production of antimony by reduction and sulfur-fixing

2018.11.1  This new plant is producing electrolytic lead, bismuth, antimony, and precious metals as final products and copper sulfide, cement copper, zinc hydro-oxide

Separation of Arsenic from the Antimony-Bearing Dust through

2017.1.11  The factors, including roasting temperature, roasting time, and CuO addition amount, play important roles in the separation of arsenic and antimony, and the

Arsenic pre-removal from antimony oxide powder by

This transfer of arsenic poses a huge threat to the environment. Decreasing the As transfer, a new process is proposed in this paper including two stages of roasting with pyrite

A Review on Pyrometallurgical Extraction of Antimony

2022.8.12  Antimony is classified as a critical/strategic metal. Its primary production is predominated by China via pyrometallurgical routes such as volatilization roasting—reduction smelting or direct reduction

Enrichment of Gold in Antimony Matte by Direct Smelting of

2018.4.10  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

A New Pyrometallurgical Process for Producing Antimony

2014.9.1  Industrial treatment and antimony recovery Remediation efforts have increased over the years to recover antimony from a variety of sources, primarily from intermediate smelter products such as ...

Antimony recovery from antimony-rich slag by top blowing

2022.11.1  We study the evaporation of antimony trioxide from an antimony-rich slag by bubbling nitrogen gas through a submerged top lance at 1000–1300 °C. Experiments are carried out with 300 g slag at gas flow rates of 20–60 l/h with the lance height of 1.5 and 10 mm. Slag samples are taken and analyzed to identify changes in the antimony trioxide

An Overview of the Behavior of Concentrates with Arsenic, Antimony

2023.7.14  of antimony, Moosavi et al. [13] carried out a review on its development through history. The authors focused on the pyrometallurgical route as well as the technologies used to obtain antimony-based products. Compared to arsenic and antimony, the literature on the processing of bismuth is scarce. The present paper is

How to Recover Mercury from Cinnabar Stibnite Ore - 911

2021.2.16  Because of the narrow limits of temperature and air supply necessary for selective roasting of mercury-antimony concentrate, fluidized-bed roasting was adopted for this phase of the investigation. This process, noted for the ease with which temperature and atmosphere can be controlled, has found widespread use in the metallurgical field

Antimony - Wikipedia

Antimony is a chemical element; it has symbol Sb (from Latin stibium) ... A vial containing the metallic allotrope of antimony Native antimony with oxidation products Crystal structure common to Sb, ... The sulfide is converted to an oxide by roasting. The product is further purified by vaporizing the volatile antimony(III) ...

Partial Roasting of High-Arsenic Copper Concentrates

2020.7.6  The partial roasting of high-arsenic copper concentrates at 973 K/998 K (700 °C/725 °C) under controlled atmosphere can remove > 95 pct of the arsenic contained in the concentrates, leaving a calcine with 52 to 68 wt pct bornite, 10 to 13 wt pct chalcopyrite and 2 to 5 wt pct magnetite, with 8 to 24 wt pct remnant chalcocite. The

Selection on the Process of Enriching Gold by Smelting from

2017.2.7  The melting products are antimony oxide, crude antimony, antimony matte and slag. Crude antimony can be viewed as a significantly material to enrich gold. Above 90% of antimony can be volatilized and recovered in the form of antimony oxide in smelting process. The crude antimony contains 88.0–92.0% Sb, 3.0–7.0% Fe and

Selective removal of arsenic from high arsenic dust in the NaOH

2021.6.1  Separation of arsenic and antimony from dust with high content of arsenic by a selective sulfidation roasting process using sulfur. Trans. Nonferrous Metals Soc ... Due to the depletion of high-grade antimony resources, more complex antimony-bearing ores and by-products have been exploited for NaSb(OH)6 preparation [13–15 ...

by products from roasting antimony

Direct production of antimony by reduction and sulfur 2018.11.1 This new plant is producing electrolytic lead, bismuth, antimony, and precious metals as final products and copper sulfide, cement copper, zinc hydro-oxide as by-products,

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Preliminary Report on the Application of Roasting Technology to

2013.12.20  The Company's objective is to become the leading integrated antimony metal and products manufacturer to western economy consumers utilising an environmentally advanced 20,000 tonnes per annum name ...

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Antimony and Antimony Compounds - Grund - Wiley Online

2006.7.15  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. Other important aspects are recycling, economics, and

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Direct preparation of sodium stannate from lead refining dross

2019.11.15  Sodium stannate (Na 2 SnO 3 3H 2 O) has been widely applied in the field of electroplating and flame retardants preparation. In general, Na 2 SnO 3 3H 2 O is mainly prepared from cassiterite or metallic tin, which has the problems of high production costs and natural mineral shortage. This study investigated a combined process of

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Importance of roasted sulphide concentrates characterization

2008.1.1  The roasting step plays an important role in zinc extraction due to the transformation from sulphide to oxide structure which provides more reactivity in presence of acid solutions. Incomplete particle roasting and presence of highly stable zinc ferrite (ZnFe 2 O 4 ) formed in the pyrometallurgical step are the two major obstacles in the

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A selective process for extracting antimony from refractory gold ore

2017.5.1  To avoid the adverse effects of antimony on the cyanide leaching process used for the recovery of gold from refractory gold ore, a cleaner production process was proposed that would selectively remove antimony as sodium pyroantimonate. The process included three steps: 1) leaching of antimony from the refractory gold ore with sodium

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Selective removal of arsenic from crude antimony trioxide by leaching ...

2022.1.15  The presence of arsenic (As) in crude antimony trioxide (Sb 2 O 3) impedes the Sb recovery and results in an environmental issue.Selective As removal from crude antimony trioxide would therefore enable using this residue in commercial Sb 2 O 3 production. This work uses a nitric acid leaching method to remove As from crude

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A novel approach to synthesizing sodium antimonate and

2023.2.1  Introduction. Sodium antimonate (NaSb(OH) 6) is a white cubic crystal having a density of 3.7 g/cm 3 (Zhao, 1988). Being a deep–processed product of antimony, sodium antimonate is widely used for its excellent physical and chemical properties as clarifiers for imaging tube glass, optical glass and high–grade glass, flame retardant for

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Full article: Stabilization and encapsulation of arsenic-/antimony ...

2021.7.30  1. Arsenic and antimony: Sources and toxicity. Arsenic (As) and antimony (Sb) are trace elements with metalloid properties, showing a wide distribution in the environment (Kabata-Pendias Mukherjee, Citation 2007).Both are chalcophile elements and usually co-occur in hydrothermal sulfide ores (Johnston et al., Citation

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A novel production method of antimony trioxide from stibnite ...

2021.9.1  As the roasting process of antimony sulfide (Sb 2 S 3), harness the high volatile feature of antimony trioxide (Sb 2 O 3), control on the extent of oxidative roasting is a key issue. So as to evaluate the extent of Sb 2 S 3 oxidation with different desulfurizers, verification experiments were conducted with additives proportion being 1.5 times the

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