Selective iron sorption for on-line reclaim of chromate electroplating solution at highly acidic condition

Wei, Lanping; Liu, Po-Yi; Lin, Kaifeng; Yi, Je-Ming; Liou, Cyuan-Wun; Yang, Guo-Chuan; Hsu, Hsi-Yen; Tsai, Tseng-Chang

doi:10.1016/j.cej.2015.06.080

Cited by 8 publications

(2 citation statements)

References 31 publications

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“…Several methods have been used for this purification process, such as precipitation, extraction, , membrane separation, adsorption, or ion exchange. − Among them, the ion exchange by synthetic resin has the greater potential in the removal of metal ions from the acidic solution. , With this method, the metal ion impurities can be first adsorbed from the mother liquor to the fresh resin and then be eluted from the saturation resin into the regeneration solution. Through the consecutive adsorption and elution processes, the separation unit of metal ions using the resin can achieve easily the recycling operation.…”

Section: Introductionmentioning

confidence: 99%

Removal of Iron(III) and Aluminum Ions from Phosphoric Acid–Nitric Acid Solutions by S957 Chelation Resin: Kinetics, Dynamic Adsorption, and Elution

Jia

et al. 2019

Ind. Eng. Chem. Res.

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Removal of iron(III) and aluminum ions from phosphoric acid–nitric acid (PA-NA) solutions including their batch adsorption kinetics on the sulfonic/monophosphonic acid chelation resin (S957) and the dynamic adsorption–elution process at the different operating parameters is studied. The results reveal that Fe(III) and Al(III) ions in PA-NA solutions on S957 resin present the slow batch adsorption rate. Their adsorption equilibriums are reached at 60 and 40 min contact times, respectively. The dynamic adsorption process of Fe(III) and Al(III) ions is dependent on the feed flow rate through the fixed-bed column, and at the 0.5 mL·min–1 flow rate, Fe(III) and Al(III) ions can be greatly removed from PA-NA solutions. In the dynamic elution process, the flow rate shows a little effect on the elution process of Fe(III) and Al(III) ions. The better regeneration solution for the dynamic elution process is HCl solution, and the optimized concentration of HCl solution is 8 mol·L–1.

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Section: Introductionmentioning

confidence: 99%

Removal of Iron(III) and Aluminum Ions from Phosphoric Acid–Nitric Acid Solutions by S957 Chelation Resin: Kinetics, Dynamic Adsorption, and Elution

Jia

et al. 2019

Ind. Eng. Chem. Res.

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“…Cr (VI) could be reduced to Cr (III) by either biological or chemical ways [3][4][5][6][7][8][9]. In spite of the extensive application in practice, chemical reduction requires energy input and large quantities of chemicals, resulting in the high cost but the low efficiency [10].…”

Section: Introductionmentioning

confidence: 99%

Direct Cr (VI) bio-reduction with organics as electron donor by anaerobic sludge

Qian

Zhou

Wang

et al. 2017

Chemical Engineering Journal

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Industrial activities produce lots of Cr (VI)-containing wastewater. This study presented a detailed work on direct Cr (VI) bio-reduction (i.e. Cr (VI) is reduced with organics as electron donor directly) by anaerobic sludge through both batch and long-term experiments. Effects of pH and initial Cr (VI) concentrations on direct Cr (VI) bioreduction activity were evaluated. The highest direct Cr (VI) bio-reduction rate was

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Removal of Fe3+ and Al3+ ions from phosphoric acid–nitric acid solutions with chelating resins

Jia

et al. 2019

Hydrometallurgy

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Selective iron sorption for on-line reclaim of chromate electroplating solution at highly acidic condition

Cited by 8 publications

References 31 publications

Removal of Iron(III) and Aluminum Ions from Phosphoric Acid–Nitric Acid Solutions by S957 Chelation Resin: Kinetics, Dynamic Adsorption, and Elution

Removal of Iron(III) and Aluminum Ions from Phosphoric Acid–Nitric Acid Solutions by S957 Chelation Resin: Kinetics, Dynamic Adsorption, and Elution

Direct Cr (VI) bio-reduction with organics as electron donor by anaerobic sludge

Removal of Fe3+ and Al3+ ions from phosphoric acid–nitric acid solutions with chelating resins

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