The characterisation and origins of interphase substances (cruds) in the rhenium solvent extraction circuit of a copper smelter

Zagorodnyaya, A. N.; Абишева, З. С.; Sadykanova, S.E.; Bobrova, V.V.; Sharipova, A. S.

doi:10.1016/j.hydromet.2010.05.013

Cited by 21 publications

(15 citation statements)

References 4 publications

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“…A typical schematic flow‐diagram developed for the commercial processing of the sulfuric acid wash from copper smelter off‐gases is shown in Fig. . The appearance of an interphase substance called ‘crud’ is identified as a major problem during continuous operation of SX in commercial practice.…”

Section: Liquid–liquid Extraction Of Rheniummentioning

confidence: 99%

Complexation chemistry in liquid–liquid extraction of rhenium

Srivastava

Lee

Kim

2015

J of Chemical Tech & Biotech

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This review addresses the dearth of knowledge about the interaction of rhenium species with organic solvents during the liquid–liquid extraction of rhenium. To describe such interactions, the aqueous chemistry of rhenium in unlike media, the extraction mechanism and the salient role of thermodynamic properties are also discussed. Formation of a rhenium‐complexed species inorganic phase and competition between the extracted species during extraction is described by inner and outer sphere coordination. Emergence of a stabilized complex in a hydrophobic environment is greatly affected by the interaction of electrostatic and/or H‐bonding. The chemistry of liquid–liquid extraction of rhenium that can further assist future studies in this area is also relevant to other metal ion systems. © 2015 Society of Chemical Industry

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Section: Liquid–liquid Extraction Of Rheniummentioning

confidence: 99%

Complexation chemistry in liquid–liquid extraction of rhenium

Srivastava

Lee

Kim

2015

J of Chemical Tech & Biotech

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“…Typically, copper or molybdenum sulphide concentrates recovered from flotation circuits contain 50-100 g/t (ppm) Re (Abisheva et al, 2011). Rhenium then deports during Cu smelting or molybdenite roasting mainly in slimes, flue dusts, or wet scrubbing acid solutions (Kang et al, 2013;Lan et al, 2006;Seo et al, 2012;Shariat and Hassini, 1998;Singh Gaur et al, 2015;Zagorodnyaya et al, 2010).…”

Section: Introductionmentioning

confidence: 99%

“…Cao et al (2009) used a mixture of 20% trioctyl amine (TOA) and 30% tributyl phosphate (TBP) to selectively extract 97% Re and 1.7% Mo from a (15 g/L Mo + 0.1 g/L Re) solution, leaving 4 mg/L Re in the raffinate. Other extractants were also used, including 2,20-(imino)bis(N,N0-dioctylacetamide) (IDOA), di-isododecylamine (DIDA), tri-alkyl (C8-10) amine (Zagorodnyaya et al, 2010), TOA (Ali et al, 2012;Iatsenko Gerhardt et al, 2001;Lou et al, 2010), and tributyl phosphate, TBP (Alamdari et al, 2012;Hydrometallurgy 156 (2015) …”

Section: Introductionmentioning

confidence: 99%

Recovery of rhenium from a molybdenite roaster fume as high purity ammonium perrhenate

et al. 2015

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“…Of the many extractants used for rhenium-SX, the solvation and amine-based extractants have been widely reported (Sato and Sato, 1990;Xiong et al, 2010;Zhan-fang et al, 2009). Difficulties in the appropriate backextraction from Aliquat 336 and loss of solvent (tri-alkyl amine) caused by the appearance of a sticky interphase substance during the extraction process are major drawbacks of amine-based extractants (Churchward, 1966;Zagorodnyaya et al, 2010). The high solubility of TBP, 1 mL/165 mL of water (0.4 g·L − 1 at 25°C); the presence of TOPO in solid form; and its ability to freeze or back-solidify at lower temperatures (at~10°C) have also limited their commercial application (Velavendan et al, 2013;www.cytec.com).…”

Section: Introductionmentioning

confidence: 99%