Electrochemical mechanism and flotation of chalcopyrite and galena in the presence of sodium silicate and sodium sulfite

Zhang, Ye; Sun, Wei; Wang, Li; Dong, Yong; Wang, Chang-Tao

doi:10.1016/s1003-6326(20)65280-3

Cited by 32 publications

(2 citation statements)

References 30 publications

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“…In the electrochemical mechanism that is involved in the selective separation between galena and chalcopyrite, sodium sulfate and sodium silicate are used respectively as single depressant and their mixture as combined depressant. [16] Hydrophilic species are formed on galena surface due to the high affinity of depressants.…”

Section: Overall Reactionmentioning

confidence: 99%

Froth flotation process and its application

Mondal

Acharjee

Mandal

et al. 2021

Vietnam Journal of Chemistry

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The paper is about the froth flotation process and its application. It is a metallurgical process for the extraction of metals in a pure state from their ores: especially for sulfide ores. Froth flotation is one of the steps which is generally performed before roasting and it deals with the surface chemistry of liquids and of the minerals to be separated. This process requires a particular setup to be performed which contains different components. Surfactants play the most important role here. Different types of surfactants are used in different ways and each of them plays a crucial role like, collectors, frothers, froth stabilizers, depressants and activators, pH regulators etc. The sulfide ore flotation process can be studied by both chemical and electrochemical phenomena considering the interfacial energies. A broad application of this process in industrial field is the flotation of iron ores which is of two types: direct and reverse flotation. The later one is again based on two different types as cationic and anionic reverse flotation. In all these processes different types of flotation reagents are used. Another application is separation of malachite and azurite ore using sulfidization flotation.

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Section: Overall Reactionmentioning

confidence: 99%

Froth flotation process and its application

Mondal

Acharjee

Mandal

et al. 2021

Vietnam Journal of Chemistry

View full text Add to dashboard Cite

show abstract

“…Although the use of Na2SO3 has been studied, its application in saline environments has not yet been thoroughly investigated, perhaps constituting an alternative that has not yet been considered. The findings of (Zhang et al, 2020) indicated that this depressant allows working at a pH below 10, essential for processes that use seawater without desalination, as at pH over 10, there is an excessive consumption of lime.…”

Section: Introductionmentioning

confidence: 99%