Gold ore concentration

19.05.2012

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phone: + 375 17 259-06-90, fax: + 375 17 313-45-40
e-mail: info@npo-center.com

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Gold ore concentration

In the flow-sheets to prepare auriferous ores for beneficiation the air classifiers are applied not only for size-separation of the material but for a prior concentration as well: the extraction of coarse gold into concen-trate at the stage of comminuting, extracting into tails of small fractions of ground ore with waste content of useful components. As a consequence the necessity to install nugget traps stands no longer and besides the quantity of the material entering for beneficiation is going down.
The studies carried out on gold-quartz and gold-sulfide-quartz ores showed that the application of im-pact-centrifugal crushers permits the share of the opened gold in the ground product to be increased from 5 up to 25% (relatively) as compared with the conventional crushers and mills. At the same time there is a cut-ting of capital and operational costs.
There was also a research on dry concentration of auriferous ores of some deposits. Thus, for example, the analysis of the end products of concentration of Beriozovsky deposit (the Ural, Russia) by dry methods showed that the content of gold in the obtained concentrate came to 100 – 120 g/t at 95 – 98% extraction (the content of gold in source products - 8,3 g/t).

Developed by - Dew Point

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phone: + 375 17 259-06-90, fax: + 375 17 313-45-40, e-mail: info@npo-center.com