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FLOTATION OF A REFRACTORY MARMATITE ORE BY USING AMMONIACAL COPPER (II) SOLUTION AS ACTIVATOR

BROWSE_DETAIL_CREATION_DATE: 2013

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BROWSE_DETAIL_TYPE: Article

BROWSE_DETAIL_PUBLISH_STATE: Published

BROWSE_DETAIL_FORMAT: PDF Document

BROWSE_DETAIL_LANG: English

BROWSE_DETAIL_SUBJECTS: TECHNOLOGY, Chemicals: Manufacture, use, etc.,

BROWSE_DETAIL_CREATORS: RAO, FENG (Author), SONG, SHAOXIAN (Author), TONG, XIONG (Author), XIE, XIAN (Author), LOPEZ, ALEJANDRO (Author),

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BROWSE_DETAIL_PUBLISHER: Atılım Üniversitesi BROWSE_DETAIL_PUBLICATION_NAME: The International Journal Of Mineral Resources Engeering BROWSE_DETAIL_PUBLICATION_LOCATION: Ankara BROWSE_DETAIL_PUBLICATION_DATE: 2008 BROWSE_DETAIL_PUBLICATION_NUMBER: 1 BROWSE_DETAIL_PUBLICATION_VOLUME: 13 BROWSE_DETAIL_PUBLICATION_PAGE: 41-48


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The flotation of a refractory marmatite ore in China has been studied by using

ammoniacal copper (II) solution as the activator in this work, in order to improve the Zn

recovery of the marmatite flotation. The experimental results have shown that the ACS

could increase the Zn recovery of 9%, compared with copper sulphate (a commonly

used activator for sphalerite and marmatite). The marmatite flotation with the ACS as

the activator consume much less lime because it was realized at pH 9, while that with

copper sulphate as the activator is carried out around pH 12. The less lime consumption

not only leads to savings on operation costs, but also reduces the corrosions of flotation

cells and stirring tanks, etc. The mechanism by which the ACS acts as activator in

marmatite flotation has been found to be attributed to the chemical adsorption of copper

(II)-ammonia complexes (CuNH32 and Cu(NH3)22) on marmatite surfaces, leaving to

active sites on the surfaces for the adsorption of xanthate ions.


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