Direct production of antimony by reduction and sulfur-fixing …

Direct production of antimony by reduction and sulfur-fixing roasting from stibinite concentrate. November 2018. 10.13374/j.issn2095-9389.2018.11.006. Authors: …

An Overview of the Behavior of Concentrates with …

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 …

Antimony Stocks List Ranked for 2024 | Canadian

The industrial methods for refining antimony are roasting and reduction with carbon or direct reduction of stibnite with iron. ... are prominent additives for chlorine and bromine-containing fire retardants found in many commercial and domestic products. An emerging application is the use of antimony in microelectronics. More about Antimony.

An Overview of the Behavior of Concentrates with …

Keywords: arsenic; antimony; bismuth; roasting; pyrometallurgy; volatilization; encapsulation; capture 1. Introduction Copper concentrates are currently …

Regents Chemistry Exam Explanations August 2015

To obtain antimony, stibnite is roasted (heated in air), producing oxides of antimony and sulfur. The unbalanced equation below represents one of the reactions that occurs during the roasting. Sb 2 S 3 (s) + O 2 (g) → Sb 2 O 3 (s) + SO 2 (g) 66 Determine the percent composition by mass of antimony in stibnite (gram-formula mass = 340. g/mol).

Antimony Trioxide Production and Uses

Antimony trioxide can be produced by roasting antimony trisulfide, burning antimony in an oxygen-rich environment, or hydrolyzing antimony halides or antimony trisulfide. ... Sb2O3 is used in HIPS for products like television backs, domestic electrical appliances, and housings for electrical equipment, including computers (PCs).

Direct preparation of micro and nano antimony trioxide using antimony …

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 preparing Sb 2 O 3 crystals and Sb 2 O 3 nanomaterials from minerals directly. In this research, a clean, short, direct preparation of Sb 2 O 3 crystals and nanomaterials via …

Behavior of Arsenic, Antimony and Bismuth at Roasting

The reaction mechanism for the volatilization of arsenic and antimony were discussed. Near As and over 95% Sb volatilized in the oxidation of a mixture of pure minerals at 700 °C, 1% oxygen, while over 95% As, and 35% Sb volatilized at 600 °C in 1% oxygen atmosphere when using a copper concentrate containing 3.51% As, 0.14% Sb, and …

Recovery of antimony from antimony-bearing dusts …

This paper mainly investigated the antimony recovery from antimony-bearing dusts through reduction roasting process after the dust firstly oxidation roasted. CO—CO2 mixture gas was used as reducing agent, and the antimony-containing phase was reduced into Sb4O6, volatilized into smoke, and finally recovered through the …

A Review on Pyrometallurgical Extraction of Antimony from …

Abstract. Antimony is classified as a critical/strategic metal. Its primary production is predominated by China via pyrometallurgical routes such as volatilization …

Enrichment of Gold in Antimony Matte by Direct Smelting …

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 …

Separation of Arsenic from the Antimony-Bearing Dust …

Three steps were conducted in the roasting tests. First, the antimony-bearing dust and CuO were mixed fully. Second, mixtures of antimony-bearing dusts and CuO were roasted in the tube furnace for 25 to 125 minutes at 623 K to 723 K (350 °C to 450 °C) under N 2 atmosphere when the temperature reached a constant value. The off …

Recovery of antimony from antimony-bearing dusts through …

Da-peng Zhong ( ), Lei Li ( ) & Cheng Tan ( ) 186 Accesses. 8 Citations. Explore all metrics. Abstract. This paper mainly investigated the antimony …

Roasting in Metallurgy

Roasting to Eliminate Arsenic and Antimony. H. M. Howe, in explaining how this is effected, distinguishes three horizontal zones in the ore: the upper surface, where oxidation is only slightly hindered by …

roasting by products of antimony

by products from roasting antimony Prominer Antimony and Gold Tri Star The clean roasting antimony technology developed by TriStar sold to joint venture com. Toggle navigation. Home; About Us; Products; Cases; Solutions; ... roasting by products of antimony T01:12:14+00:00 Who we are > Products > Cases > Solutions > …

How to Remove Arsenic, Antimony & Bismuth from …

The products, refined copper and refinery-slag, together contain quantities of arsenic, antimony and bismuth equal to those present in the blister-copper subjected to the operation. In the tables on p. 663 the products of refining are calculated from the working-results on 100 tons of blister-copper.

Antimony Metallurgy | SpringerLink

In 1604, a process was invented to extract antimony and antimony sulfide as described by B. Valentine of Germany. In 1850, people started using lead-antimony alloy as the polar plate of the acid battery. In 1884, A. Bobierre and others proposed for the first time the volatilization roasting method for antimony regulus extraction.

Selection on the Process of Enriching Gold by Smelting from …

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 …

Separation of arsenic from arsenic—antimony-bearing dust …

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 6.The factors such as roasting temperature and CuS addition amount …

An Overview of the Behavior of Concentrates with Arsenic, Antimony…

Depending on the type of roasting, the behavior of arsenic, antimony, and bismuth species during the experiments is analyzed. It is well-known that the mining industry in Chile and the world is searching for eco-friendly, highly efficient mineral treatments. This is because the content of toxic elements such as arsenic, antimony, …

Kinetic studies for sulfur-fixing and roasting reduction of …

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 …

Direct preparation of micro and nano antimony trioxide …

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 …

Volatilization of Arsenic and Antimony from …

The findings obtained from this study can be summarized as follows: (1) In nitrogen atmospheres, maximum volatilization of arsenic and antimony achieved 95% and 90% for 60 minutes of roasting at 700°C and 1200°C, respectively. Under the roasting conditions, antimony volatilization did not took place at 700°C.

(PDF) Phase and Morphology Transformations in Sulfur-Fixing …

Under the optimum conditions, the direct recovery rate of antimony can reach 91.48%, and crude antimony with a purity of 96.00% has been achieved. 95.31% of sulfur is fixed in form of FeS in the ...

Kinetic studies for sulfur-fixing and roasting reduction of antimony …

The XRD patterns of the roasting products of Sb2S3-ZnO-C mixture at different temperature were investigated in our previous report [23], and the results proved that Sb2O3 and Sb were yielded after ...

Antimony and Antimony Compounds

Introduction 2. Physical Properties 3. Chemical Properties 4. Occurrence 5. Beneficiation 6. Recovery of the Metal 6.1. Roasting 6.2. Reduction of ... Skip to Article Content; Skip to Article Information; Search within. Search term ... Antimony Alloys and Intermetallic Compounds. 11. Antimony Compounds. 11.1. Antimony Chlorides. 11.2. …

An Overview of the Behavior of Concentrates with Arsenic, Antimony…

In this paper, a review on the fundamentals of the current treatments aimed at removing arsenic, antimony, and bismuth from copper concentrates under roasting conditions is presented.

Oxidation transformation and vacuum separation for

The separation of antimony using the wet method relies on the differences in redox properties of the metal elements and the solubility of the products. This is achieved by …

[PDF] Antimony Recovery from End-of-Life Products and …

Antimony has become an increasingly critical element in recent years, due to a surge in industrial demand and the Chinese domination of primary production. Antimony is produced from stibnite ore (Sb2O3) which is processed into antimony metal and antimony oxide (Sb2O3). The industrial importance of antimony is mainly derived from …

Low-Temperature Microwave Carbothermic Reduction Roasting of Antimony …

Antimony sulfide concentrate can be obtained from stibnite after ore beneficiation, and various antimony-containing products can be obtained by further mineral processing. 4 Antimony metallurgy is divided into two main processes: ... W 2 is the mass of the roasting products, g; C 1 is the Sb content in the raw mixture, %; ...

Sulfur fixation and reduction roasting of stibnite for clean …

The in-situ X-ray diffraction and TG–MS analysis of the Sb2S3-ZnO-C system indicated that the roasting process was initially conducted as a sulfur-fixing reaction to generate antimony oxide ...