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roasting by products of antimony


In some cases, partial roasting is used to remove almost all unwanted elements – such as arsenic and antimony – before further treating the calcine. Special equipment is used for cooling and precipitating arsenic trioxide, which can be produced to a very high purity. Most of our sulfating roasting plants are used for copper/

Roasting - an overview | ScienceDirect Topics

Oxidative roasting is the process of converting metallic compounds in waste materials into oxides using oxidants. The aim is to obtain oxides to facilitate the next step of smelting. Oxidation roasting is often used in sulfide ore smelting. It is used to remove the sulfur ore, arsenic, antimony, and other harmful impurities in ore.

Antimony - Element information, properties and uses .

Antimony is not an abundant element but is found in small quantities in over 100 mineral species. It is most often found as antimony(III) sulfide. It is extracted by roasting the antimony(III) sulfide to the oxide, and then reducing with carbon. Antimony can also be found as the native metal.

US4808221A - Process for the recovery and separation of .

Fume generated by roasting speiss is contacted with an oxygen-containing gas at an elevated temperature for a sufficient time to produce arsenic and antimony products which may be separated from.

Preliminary Report on the Application of Roasting Technology .

In developing its antimony roasting project (the "Roaster Project"), Tri-Star has created technology and knowhow that it believes can be applied to the processing of refractory gold ores with.

Study on sulphidization roasting and flotation of cervantite .

The roasting time was varied from 15 to 75 min at intervals of 15 min space with a fixed sulfur to antimony molar ratio of 0.9 and roasting temperature of 723 K. According to the experimental results in Fig. 4 , the flotation recovery of treated product increases with increase of roasting time from 15 min to 30 min, and thereafter decreases.

Antimony - Wikipedia

The industrial methods for refining antimony are roasting and reduction with carbon or direct reduction of stibnite with iron. The largest applications for metallic antimony are an alloy with lead and tin and the lead antimony plates in lead–acid batteries.

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