Separation of minerals

B - Operations – Transporting – 03 – B

Patent

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B03B 5/28 (2006.01) B01D 21/00 (2006.01) B01D 21/28 (2006.01) B01D 37/02 (2006.01) B01J 19/10 (2006.01) B03B 5/62 (2006.01) B09C 1/00 (2006.01) B09C 1/02 (2006.01) C02F 1/36 (2006.01) C22B 43/00 (2006.01)

Patent

CA 2177555

The separation of different minerals based on differences in density, surface tension effects and general relative settling rates of the different media over a range of particle sizes is effected in a unique hydraulic mineral separator system. The system and process are particularly useful in the separation of mercury from mercury contaminated soils, sands, gravels, clays and process sludges, (such as chlor-alkali sludges) . Sonic vibrations are used to enhance recovery of finely divided mercury and conditioning agents are also used to advantage to reduce surface tension effects and further enhance recovery.

La séparation de minéraux divers, en fonction des différences de densité, d'effets de tension superficielle et de taux généraux de sédimentation relative des différents milieux pour une gamme granulométrique, est effectuée dans un système unique de séparation hydraulique des minéraux. Ce système et le procédé sont particulièrement utiles pour l'extraction du mercure dans les sols, les sables, les graviers, l'argiles et les boues d'exploitation (comme les boues de chlore et de soude caustique) qui sont contaminés par le mercure. Le recours aux vibrations acoustiques améliore la récupération du mercure finement divisé. Des agents modificateurs sont également utilisés pour réduire les effets de tension superficielle et favoriser davantage la récupération.

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