1. The metallurgy of antimony - ScienceDirect

    In ancient times, in extracting antimony from sulfide ore by the addition of iron, a starlike fern shaped crystalline pattern appeared during the course of solidification. This was dubbed the “Philosopher's Signet Star” in 1610 and until recently the shape of these stars had commonly served to indicate the grade of the metallic antimony.

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  2. REDUCTION SMELTING OF ANTIMONY CONCENTRATE …

    the coke consumption on the antimony recovery rate and the impurities behavior. The latter refer mainly to lead, tin and iron. These metals oxides may also be present. The smelting reduction comprises a reaction of melted antimony with the carbon-containing reducing agent. In fact the melt contains sodium salts of antimony oxide.

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  3. How to Remove Arsenic, Antimony & Bismuth from Copper

    Arsenic and antimony are often present in considerable proportions in the slags from reverberatory furnaces smelting calcined ores. The conditions are different in the blast-furnace when smelting calcined ores, as the gases are of a reducing character.

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  4. MIT’s accidental smelting discovery unlocks the potential ...

    Nov 28, 2016· Antimony has a melting point of 631°C compared with copper’s 1,085°C and iron’s 1,540°C melting points. The ‘holy grail’ would be steel production as it is the number one industrial source of carbon dioxide, the main greenhouse gas.

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  5. New method developed for producing some metals | MIT News

    Aug 24, 2016· The MIT researchers were trying to develop a new battery, but it didn’t work out that way. Instead, thanks to an unexpected finding in their lab tests, what they discovered was a whole new way of producing the metal antimony — and potentially a new way of smelting other metals, as well.

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  6. 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 the ore and crude to regulus.

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  7. Working with antimony question (total noob) - Smelting ...

    Jan 16, 2013· Antimony is used in lead bullet alloys - IIRC, linotype is about 84% lead, 12% antimony and the balance is tin. One issue with melting and casting is that when the metal does finally melt, it does so immediately and you can have a potentially dangerous situation if you aren't prepared for that event.

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  8. Improved Smelting and Refining Processes for Production of ...

    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.

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  9. Smelting Process For 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.

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  10. Lead smelting - Wikipedia

    Concentrated lead ore is fed into a sintering machine with iron, silica, limestone fluxes, coke, soda ash, pyrite, zinc, caustics or pollution control particulates. Smelting uses suitable reducing substances that will combine with those oxidizing elements to free the metal. Reduction is the final, high-temperature step in smelting.

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