Quantum-chemical method for selection of a collecting agent to recover zinc and copper(II) cations in flotation of mine waste waters

Abstract

The authors set forth the well-grounded selection of effective agents: terephthalic esters, distinguished for the optimal set of quantum-chemical parameters of the agent reactivity to recover zinc and copper(II) from the process waste water, propose a new-developed complex collecting agent ROL and report the investigation into the mechanism for recovery of zinc and copper(II) by this agent. The resourcerenewable process flow sheet is proposed to treat mine-and-processing waste waters, rich in copper and zinc content to produce a concentrated product.

The Removal of Rare-Earth Metals from Water-Salt Systems – An Innovative Aspect of the Modern Industry

“…At that, the decrease of REE toxicity, and the risk of damaging the environment, is presumed. In papers [18,20,22] the ion flotation method is proposed for REE removal from apatite sulphuric acid processing products.…”

“…According to data [22] the ion flotation method is used for removal of rare-earth and radioactive metal cations from residential wastewaters. Besides, this method can be used for removal from wastewaters of oil admixtures and petroleum contained in the system [23].…”

“…A special feature of Russian raw material sources is the REE low content and complex chemical and mineralogical composition. The processing of such raw materials in unprofitable [20][21][22][23][24][25][26][27][28]. Besides, ore mined at Kola peninsular (a fairly developed Arctic Region in Russia) are used for production of up to 25 concentrates that are different in terms of their composition and properties [29].…”

Ion Flotation of Ytterbium Water-Salt Systems—An Innovative Aspect of the Modern Industry

“…A special feature of Russian raw material sources is the low REE content and complex chemical and mineralogical composition. The processing of such raw materials is unprofitable [19][20][21][22][23][24][25][26][27]. Furthermore, ore mined at the Kola peninsula (a fairly developed Arctic region in Russia) is used for production of up to 25 concentrates that are different in terms of their composition and properties [28].…”

“…According to data [21], the ion flotation method was used for removal of rare-earth and radioactive metal cations from residential wastewaters. Additionally, this method was used for removal of oil admixtures and petroleum contained in the system from wastewaters [22].…”