antimony sulfide refining

MINING

Antimony Sulfide | AMERICAN ELEMENTS

The most common source of antimony is the sulfide mineral known as stibnite (Sb 2 S 3) although it sometimes occurs natively as well. Antimony has numerous applications most commonly in flame-retardant materials it also increases the hardness and strength of lead when combined in an alloy and is frequently employed as a dopant in ...

EP0806487A1 - Extraction of antimony from sulfide ores by ...

From the solution of antimony sulfur salts pure Sb 2 S 3 is precipitated by acidification and this sulfide separated from the solution by filtration is leached with a ferric fluoborate based...

Antimony Trisulfide - an overview | ScienceDirect Topics

Antimony metal and various antimony compounds (such as antimony trioxide and trisulphate) are produced from the ore. Exposure to antimony dust occurs during the mining crushing and processing of the ore; however the highest exposures to both antimony dust and fumes are likely to occur in smelting and refining processes.

Separating lead–antimony alloy by fractional crystallization ...

The lead–antimony components in jamesonite exist as solid solution of antimony sulfide and lead sulfide in the ore. Since it is of great difficulty to separate lead and antimony from jamesonite by mineral methods metallurgical methods must be taken to utilize the ore more effectively [1] .

(PDF) Processing of Antimony at the Sunshine Mine

Since antimony is commonly found in precious metal refractory ore bodies extraction is essential. The Sunshine Mine in KeIlogg Idaho has recovered antimony from its precious metal tetrahedrite ...

Antimony: Chemical reactions | Pilgaard Elements

Antimony is dissolved in hot concentrated sulphuric acid H 2 SO 4 or nitric acid HNO 3 forming Sb(III) solutions.The sulphuric acid reaction produces SO 2.Antimony does not react with hydrochloric acid in the absence of oxygen.

Antimony Recovery from End-of-Life Products and Industrial ...

Complex antimony minerals often require adapted flowsheets in order to ensure the recovery of antimony and the other main metal constituents. The last primary producer of antimony in the U.S.A. (Sunshine Mining & Refining Company) was mining the complex copper-silver-antimony sulfide: freibergite (CuAg) 12 Sb 4 S 13 . This mine produced both silver and antimony concentrates until its closure in 2001.

Electrowinning of antimony from model sulphide alkaline ...

More than 100 minerals of antimony have been found in nature and the most important and abundant one is stibnite an antimony sulfide (Sb 2 S 3 ) exploited for the recovery of antimony and ...

Antimony Smelting - 911metallurgist.com

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 the ore and crude to regulus.

THE ALKALINE SULFIDE HYDROMETALLURGICAL SEPARATION RECOVERY ...

2.4. Alkaline Sulfide Hydrometallurgical Treatment of Lead Softening Skims The formation of arsenic and antimony skims in lead refining is commonly encountered. An example of the application of the alkaline sulfide hydrometallurgical treatment follows. Table X. Lead Softening Skims Head Sample Assay Pb% Sb% As% 52.9 31.7 3.3

Antimony - Wikipedia

Most antimony is mined as the sulfide; lower-grade ores are concentrated by froth flotation while higher-grade ores are heated to 500–600 °C the temperature at which stibnite melts and separates from the gangue minerals. Antimony can be isolated from the crude antimony sulfide by reduction with scrap iron: Sb 2 S 3 + 3 Fe → 2 Sb + 3 FeS

Antimony Compounds - US EPA

Antimony is a silvery-white metal that is found in the earth's crust. Antimony ores are mined and then either changed to antimony metal or combined with oxygen to form antimony oxide. (1) Antimony trioxide is a white powder that is very slightly soluble in water. (1) Antimony metal is a very brittle moderately hard metal. (1)

United States Antimony Corporation

USAC operates the only significant antimony smelter in the United States and it is in a "sold out" condition. The Company has proven experience in underground and open pit mining flotation and gravimetric milling crushing and screening dry grinding cyanide leaching precious metal refining pyro-metallurgy and marketing.

Lead smelting - Wikipedia

Galena the most common mineral of lead is primarily lead sulfide (PbS). The sulfide is oxidized to a sulfite (PbSO 3 ) which thermally decomposes into lead oxide and sulfur dioxide gas. (PbO and SO 2 ) The sulfur dioxide (like the carbon dioxide in the example above) is expelled and the lead oxide is reduced.

US20150259216A1 - Method for producing antimony trisulfide ...

A method for producing antimony trisulfide can inexpensively produce antimony trisulfide that has a relatively low content of lead arsenic and crystalline silica (i.e. impurities). The method...

Antimony - Assignment Point

The industrial methods for refining antimony are roasting and reduction with carbon or direct reduction of stibnite with iron. Occurrences Production and Properties of Antimony Antimony is a silvery-white brittle solid found in the earth’s crust estimates of the amount of antimony in the crust are between 0.2 and 0.5 ppm.

CAS 1315-04-4 Antimony(V) sulfide - Alfa Chemistry

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antimony sulfide refining