The acid dissolution of sulfide mineral samples under pressure in a microwave oven |
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| Authors: | F Smith B Cousins J Bozic W Flora |
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| Institution: | Chemistry Department, Laurentian University, Sudbury, Ontario P3E 2C6 Canada;INCO, Ltd; Copper Cliff, Ontario Canada |
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| Abstract: | A system for the rapid dissolution of sulfide samples from mines, mills and smelters is described. The samples and an acid mixture are placed in sealed teflon-PFA vessels, which are then heated in a microwave oven for 3 min. Following the dissolution, metals of interest (copper and nickel) are quantified by atomic absorption spectrometry. The system described produces significant savings in time and materials and increased output and efficiency in comparison with traditional methods; it is also much cleaner. Results are similar to those obtained with a more conventional dissolution method |
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