Microwave treatment of ores

Details Microwave treatment of ores Microwave treatment of ores

C - Chemistry, Metallurgy

22

B

C22B 1/00 (2006.01) C22B 15/00 (2006.01) C22B 23/00 (2006.01) C22B 60/02 (2006.01)

Patent

CA 2487743

A method of treating ore particles to facilitate subsequent processing of the ore particles to recover valuable components from the ore is disclosed. The method includes exposing the ore particles to microwave energy and causing structural alteration of the ore particles. In one embodiment structural alteration is achieved without significantly altering the mineralogy, ie composition, of the ore. In another embodiment structural alteration is achieved with minimal change to the sizes of the ore particles. In another embodiment the method includes exposing the ore particles to short duration, high energy pulses of microwave energy.

L'invention concerne un procédé de traitement de particules de minerai destiné à faciliter un traitement ultérieur des particules de minerai afin de récupérer des composants précieux du minerai. Ce procédé consiste à exposer lesdites particules de minerai à une énergie micro-ondes et à provoquer une altération de celles-ci. Dans un mode de réalisation, l'altération structurale est obtenue sans altération significative de la minéralogie, c'est-à-dire de la composition du minerai. Dans un autre mode de réalisation l'altération structurale est obtenue par un changement minimal des tailles des particules de minerai. Dans un autre mode de réalisation ledit procédé consiste à exposer lesdites particules de minerai à des impulsions élevées d'énergie micro-ondes de courte durée.

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