pyrometallurgical technique for antimony

NOV 10 2011

Antimony metal is recovered from ore primarily by pyrometallurgical techniques. liquation (metallurgy) — Britannica Online Encyclopedia It was formerly used for extracting antimony minerals from ore and for separating silver from copper with the use of lead as a solvent.

Pyrometallurgical Routes for the Recycling of Spent ...

shipping weight. Furthermore, it is essential that the antimony and arsenic should be removed by a technique which minimises pollution control problems and produces arsenic as a waste product suitable for landfill while antimony is recovered as a marketable products; and consequently upgrades the ore concentrates for pyrometallurgical treatment.

US2446656A

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.

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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 …

antimony refining technique

Dec 01, 2019· 1. Introduction. Antimony is a critical basic material used for the preparation of flame retardants, alloys, pigments, brake pads and catalysts .The average abundance of Sb in the earthcrust is 0.2 ppm, which is lower than that of most nonferrous metals and approaches the abundance of silver at 0.07 ppm ; Sb is deposited in more than 100 ores.It is economical to …

US2446656A

BACKGROUND OF THE INVENTION AND PRIOR ART. The most important source of antimony is ores containing the mineral stibnite, antimony trisulfide (Sb 2 S 3).In deposits where stibnite has been exposed to oxidation, a number of oxide minerals may be formed; these include stibiconite (Sb 3 O 6 (OH)), cervantite (Sb 2 O 4 or Sb 2 O 3-- Sb 2 O 5), valentenite (Sb 2 O …

Hydrometallurgical Upgrading of a Tetrahedrite

Jun 06, 2014· 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 …

Copper and Antimony Recovery from Electronic Waste by ...

The antimony content of commercial ores ranges from 5 to 60%, and determines the method of treatment, either pyrometallurgical or hydrometallurgical. In general, the lowest grades of sulfide ores, 5-25% antimony, are volatilized as oxides; 25-40% antimony ores are smelted in a blast furnace; and 45-60% antimony ores are liquated or treated by ...

in Acidic Media, at Ambient Temperature and Atmospheric ...

Pyrometallurgical Cleaning Pyrometallurgical techniques (called drying in the industry) use heat to separate aluminum from contaminates and other metals. ... general secondary aluminum plant emissions have been found to include HAPs such as antimony, cobalt, selenium, cadmium, and arsenic, but specific emission factors for these HAPs are not ...

Lead Refining Plant:(Pyrometallurgical techniques)

Dec 01, 2019· 1. Introduction. Antimony is a critical basic material used for the preparation of flame retardants, alloys, pigments, brake pads and catalysts .The average abundance of Sb in the earthcrust is 0.2 ppm, which is lower than that of most nonferrous metals and approaches the abundance of silver at 0.07 ppm ; Sb is deposited in more than 100 ores.It is economical to …

Hydrometallurgical process for the production of antimony ...

pyrometallurgical technique for antimony. antimony refining from lead. the antimony percentage reduced by dilution with refined lead to the requisite quantity for marketable shrapnel lead, and moulded into dumpy hundredweight bars Get Price, Lead Refining Plant:(Pyrometallurgical techniques) The Lead Bullion is fed into a refining kettle Lead ...

smelting process for antimony

Chemical techniques for gold recovery Pyrometallurgy Pyrometallurgical processes include roasting, in which compounds are converted at temperatures just below their melting points, and smelting, which involves higher tempera-tures to completely melt the material which is then separated into two liquid layers, one of which contains the metals for

A New Pyrometallurgical Process for Producing Antimony ...

pyrometallurgical techniques or hydrometallurgical processes.3 The recovery of precious metals such as gold and palladium,13,14 copper,15,16 and rare earths17 through pyrolysis methods has the disadvantage of using high temperatures and only partial separation, whereby further processing and refining

Challenges and opportunities in the recovery of gold from ...

use of pyrometallurgical techniques." 40 C.F.R. § 63.1459. 5. A NESHAP "major source" is defined as "any stationary source or group of stationary sources located within a contiguous area and under common control that emits or has the potential to emit considering controls, in the aggregate, 10 tons per year or more of

Selective separation of antimony from a Sb

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. A New Pyrometallurgical Process for Producing Antimony ...

A New Pyrometallurgical Process for Producing Antimony ...

Lead Refining Plant:(Pyrometallurgical techniques) The Lead Bullion is fed into a refining kettle. Lead bullion contains many other metallic impurities including antimony, arsenic, copper, tin and zinc. Refining Process of Lead in Detail: a. Removal …

Antimony And Oxides A Review PDF

Different types of metal-bearing wastes, such as WEEE (Waste Electrical and Electronic Equipment), are important urban minerals in modern society, and the efficient recycling and reuse of their metal values is of key interest. Pyrometallurgical copper smelting is one of the most prominent ways of treating WEEE, however, more accurate experimental data is needed …

Waste Management & Research An effective separation ...

A hydrometallurgical process for pollution-free recovery of metallic antimony from stibnite and other antimony-containing materials by (a) reduction of ferric chloride by such materials to produce ferric chloride and antimony (III) chloride, (b) recovery of metallic antimony, preferably by electrolysis, (c) regeneration of the ferric chloride, and (d) purge of impurities.

BACKGROUND REPORT PRIMARY ZINC SMELTING Prepared …

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.

liquidation of antimony ore | worldcrushers

A strategy for the efficient recovery of highly pure copper and antimony metals from electronic waste (e-waste) was implemented by the combination of hydrometallurgical and electrochemical processes. The focus is on copper recovery as the main component in the leached solution, whereas the antimony recovery process was established as a purification step in order to …