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Antimony Smelting - Mineral Processing & Metallurgy

The history of the antimony industry of China dates back to 1897 when the Tai Shing Co. was formed, under contract with the Hunan Bureau of Mines, for the smelting of the ore to crude; and in 1908 the Wah Chang Mining & Smelting Co. was formed for the smelting and refining of …

Extraction of Antimony

Antimony is extracted mainly from ores containing antimony trisulphide in the form of stibnite. Rich ores are first subjected to liquation, whereby the fusible sulphide is removed from the gangue and concentrated. The concentrate is then reduced to metal by smelting with wrought iron in pots, in reverberatory furnaces or sometimes in blast ...

ATSDR - ToxFAQs™: Antimony

Mar 03, 2011· However, there are companies in the United States that produce antimony as a by-product of smelting lead and other metals. Antimony isn't used alone because it breaks easily, but when mixed into alloys, it is used in lead storage batteries, solder, …

REDUCTION SMELTING OF ANTIMONY CONCENTRATE …

The purpose of this study was to investigate the reduction smelting of antimony concentrate obtained in the course of lead production. The blend was prepared by mixing antimony concentrate with coke acting as a reducing agent. The reduction smelting was carried out in alundum crucibles in a shaft furnace with silicon carbide heating elements.

Viscosity Property of Gold-Antimony Smelting Slags by ...

In this paper, the viscosities of gold-antimony ore smelting slags of different composition have been studied by the rotating cylinder method. The results showed that, for a slag of 38.95% SiO 2, 16.17% CaO, 25.97% FeO, 10.25% Al 2 O 3, 5.17% MgO, the viscosity can be decreased by reducing 3.24%–8.5% SiO 2 or

The Metallurgy of Antimony | Request PDF

The effects of the main variables influencing the yield and content of antimony in the smelting slag were investigated in detail for the content-optimized slag, and the following optimum smelting ...

The metallurgy of antimony - ScienceDirect

1. Background. Antimony is a silvery, white, brittle, crystalline solid that exhibits poor conductivity of electricity and heat. It has an atomic number of 51, an atomic weight of 122 and a density of 6.697 kg/m 3 at 26 °C. Antimony metal, also known as 'regulus', melts at 630 °C and boils at 1380 °C.

One-Step Extraction of Antimony in Low Temperature from ...

process [7] of antimony, most of antimony smelteries in China use traditional volatilization smelting process in blast furnace to volatilize the resultant antimony trioxide, and then reduce the trioxide with carbon to metallic antimony in reverberatory furnace. However, this process has its obvious

USAC Metallurgy - us antimony

printer friendly copy. METALLURGY. LIQUATION: Liquation is the melting of stibnite into "crudum" or "needle antimony". It is carried out between 550 and 600 …

Antimony Smelting at Mikuni Smelter - J-STAGE Home

The smelting method of the sulphide ore is the iron precipitation method and oxide ore or poor ore may also be treated by the other methods. High purity antimony (99.98% Sb) is made by electrolysis. Reverberatory furnace is used for the iron precipitation method and cottrell electric apparatus was set to catch the flue dust.

Secondary Lead Smelting: National Emissions Standards for ...

The secondary lead smelting industry consists of facilities that recycle lead-bearing scrap material, typically lead acid batteries, into elemental lead or lead alloys. The final rule applies to owners and operators of secondary lead smelters.

Antimony | Article about antimony by The Free Dictionary

Antimony combines with metals to form antimonides. Production. Antimony is obtained by the pyrometallurgical and hydrometallurgical treatment of concentrates or from ore containing 20–60 percent Sb. The pyrometallurgical methods include precipitation smelting and reduction smelting.

How to melt antimony - Gunloads.com

Nov 25, 2018· The trick is to submerge the antimony chunks in the melt or it just floats on the surface. I perforated the bottom of a can that fits the pot and made a wire handle to move it up and down for agitation while dissolving. I wouldn't mess with antimony dust. To melt antimony I've used a charcoal furnace with blower - more trouble than it was worth.

US2330307A - Process of smelting antimony ore - Google Patents

US2330307A US434775A US43477542A US2330307A US 2330307 A US2330307 A US 2330307A US 434775 A US434775 A US 434775A US 43477542 A US43477542 A US 43477542A US 2330307 A US2330307 A US 2330307A Authority US United States Prior art keywords crucible trioxide antimony slag carbon Prior art date 1942-03-14 Legal status (The legal status is an assumption and is not a …

Melting pure antimony - castbulletassoc.org

Jan 02, 2014· The antimony-rich ingots readily snap apart when struck with a hammer. I would then use 1 ingot of the antimony-enriched metal and 1 pound of 50-50 solder to a 20-lb. pot topped off and fluxed with wheelweights or ran ge backstop scrap, and the resulting mix performed very much like commercial 92-6-2 "hardball" alloy.

Antimony smelting process generating solid wastes and dust ...

Xikuangshan Flash-Antimony Industry Limited Liability Company is a smelting plant in the Xikuangshan area with an annual production of 4 × 10 4 tons of antimony. The wastes produced in the smelting processes in the Xikuangshan area mainly include water-quenched slag (WQS), desulfurized slag (DS), arsenic-alkali residue (AAR) and blast furnace ...

CN102787246A - Smelting production method and device of ...

The invention relates to a smelting production method of antimony trioxide. 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 ingot undergo an ...

Antimony smelting process generating solid wastes and dust ...

A large amount of solid waste has been produced by the antimony smelting process in the "World Capital of Antimony", Xikuangshan area in China. This study comprehensively investigated the physical and chemical characteristics of the various solid wastes, as well as the leaching behavior of the solid wastes, which included water-quenched slag ...

[PDF] One-Step Extraction of Antimony in Low Temperature ...

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 investigated in details ...

How to Remove Arsenic, Antimony & Bismuth from Copper

Removal of arsenic, antimony and bismuth from copper may take place in the smelting operations by scorification, volatilization, or, under special treatment, by processes of concentration. Owing to the great variety of materials that are treated in economical metallurgy, it is rarely possible to obtain exact weights from any particular operation.

CDC - Antimony Smelters (Antimony Exposure) - NIOSH Study ...

Exposure to Antimony. The Occupational Safety and Health Administration's (OSHA) standard for antimony is 0.5 mg/cubic meter averaged over 8 hrs. In 1975 and 1976, some smelter workers were exposed to levels higher than this. The current owner of the smelter, reports that the levels now are lower.

MIT's accidental smelting discovery unlocks the potential ...

Nov 28, 2016· The traditional method of producing antimony metal is through heat smelting. However, researchers at MIT claim to have accidentally stumbled upon a new method of smelting using electrolysis rather than heat. Research was funded by the US Department of Energy, the Advanced Research Projects-Energy (ARPA-E), and French energy company Total SA.

Antimony process - American, Smelting Refining

The process for treating antimonial lead which comprises softening the lead, reducing and smelting the antimony slag therefrom to metal, removing tin and arsenic from said metal, concentrating same into a high antimony product and euitectic metal, treating the high antimony product in a fuming furnace thereby yielding antimony oxide, an ...

A New Pyrometallurgical Process for Producing Antimony ...

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.

Antimony Trioxide - CAREX Canada

General Information. Antimony trioxide (Sb 2 O 3) is a slightly soluble, white crystalline powder. [] It is produced by smelting antimony-containing ores [] or reacting antimony trichloride with water. [] Antimony is not abundant in the earth's crust. [] Antimony trioxide may also be referred to as diantimony trioxide (DAT), antimony oxide, or in manufacturing as antimony white. []

Arsenical bronze - Wikipedia

Arsenical bronze is an alloy in which arsenic, as opposed to or in addition to tin or other constituent metals, is added to copper to make bronze.The use of arsenic with copper, either as the secondary constituent or with another component such as tin, results in a stronger final product and better casting behavior.. Copper ore is often naturally contaminated with arsenic; hence, the term ...

Lead smelting - Wikipedia

This process also keeps the lead from oxidizing. The molten lead flows from the blast furnace into holding pots. Lead may be mixed with alloys, including antimony, tin, arsenic, copper and nickel. It is then cast into ingots. Lead exposure. Humans have been smelting lead for thousands of years, poisoning themselves in the process.

Antimony- Drinking Water Contaminants, Facts/Removal Methods

From 1987 to 1993, according to the Toxics Release Inventory antimony and antimony compound releases to land and water totaled over 12 million lbs. These releases were primarily from copper and lead smelting and refining industries.

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