Solvent Extraction of Nickel and Cobalt from Ammonia-Ammonium Carbonate Solution by Using LIX 84-ICNS

Mubarok, Mohammad Zaki; Yunita, Fariza Eka

doi:10.4236/ijnm.2015.43003

Cited by 13 publications

(9 citation statements)

References 12 publications

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“…It is a very difficult and uneconomical task to maintain the NiSO 4 solution pH during the test. Thus, in this work, NiSO 4 solution pH refers to the initial pH rather than the equilibrium pH, which is different from many other researchers' work …”

Section: Experiments and Methodsmentioning

confidence: 87%

“…Thus, in this work, NiSO 4 solution pH refers to the initial pH rather than the equilibrium pH, which is different from many other researchers' work. [68][69][70][71][72][73] Emulsion Zeta Potential Measurement Zeta potential (z) is usually used to measure the electric potential of the double layers of colloidal dispersions. Since emulsion droplets are usually charged, surrounded by a cloud of ions, the voltage difference between droplet surface and the liquid beyond the charge cloud can be obtained through the zeta potential measurement.…”

Section: Design Of Experimentsmentioning

confidence: 99%

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The extraction of nickel by emulsion liquid membranes using Cyanex 301 as extractant

Kökkılıç

Marion

et al. 2018

Can J Chem Eng

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The removal of nickel ions from waste streams discharged from mining and metal plating industries has become a popular research topic over the past few decades. In this work, the emulsion liquid membrane (ELM) technique was used to remove nickel ions from synthetic aqueous solutions using bis(2,4,4‐trimethylpentyl)dithiophosphinic acid (Cyanex 301) as the extractant. Sulphuric acid was selected as the internal stripping agent. Central composite design methodology was used to obtain the optimum conditions, with the factors selected in the design being extractant concentration, stripping agent concentration, NiSO4 solution pH, and NiSO4 solution/emulsion volume ratio. It was found that the extractant concentration, stripping agent concentration, and NiSO4 solution/emulsion volume ratio had a significant effect on nickel removal. Optimum operating conditions achieved a maximum nickel removal of more than 99 %. Validation tests confirmed the good agreement between the predicted and experimental data. The emulsion was successfully broken afterwards and the oil phase was re‐tested. The effects of kinetics, loading capacity, and pH variation tests between the emulsion phase and organic phase were investigated. Zeta potential measurements suggest a final pH of around 2.0 is desirable for the post‐reaction treatment of the emulsion droplets.

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Section: Experiments and Methodsmentioning

confidence: 87%

Section: Design Of Experimentsmentioning

confidence: 99%

The extraction of nickel by emulsion liquid membranes using Cyanex 301 as extractant

Kökkılıç

Marion

et al. 2018

Can J Chem Eng

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“…Изучены процессы экстракции меди и сорбции рения из модельных растворов переработки медных некондиционных концентратов [32]. Определены экстракционные характеристики извлечения меди с применением экстрагента LIX 84-I [25] и сорбционные характеристики извлечения рения с применением сорбента Purolite PPA100 [23]. Показана эффективность данных процессов при извлечении меди и рения из аммиачных растворов сложного солевого состава [11,17,29].…”

Section: записки горного института J Ournal Of MI Ni Ng Insti T Ut Eunclassified

Study on hydrometallurgical recovery of copper and rhenium in processing of substandard copper concentrates

Lutskiy

Ignatovich

2021

PMI

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Over the past decade, there has been a steady growth in demand for rare metals, with rhenium being one of the most highly demanded, but also one of the most expensive and difficult to obtain. The high demand for rhenium is due to its use as a key component of metallurgical alloys or as a component of catalysts used in the oil refining industry. The aggregate of facts causes profitability of processing of the rhenium-containing mineral resources, which also are the copper substandard concentrates obtained at processing of the Zhezkazgan sandstones. The study focuses on the processes of extraction of copper and sorption recovery of rhenium from solutions of ammonia leaching of copper substandard concentrates. Model solutions similar in the elemental composition to solutions of ammonia leaching solutions of copper substandard concentrates obtained during the processing of Zhezkazgan sandstones were used as an object of the study. The paper estimates extraction characteristics of copper recovery using LIX 84-I solution in kerosene, as well as sorption characteristics of the rhenium recovery process using the Purolite PPA100 anion exchanger. Based on the obtained characteristics the possibility of hydrometallurgical processing of ammonia leaching solutions of substandard copper-sulfide concentrates, and recovery of the obtained commercial products is shown.

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“…Untuk mengetahui jenis reaksi yang terjadi pada proses ekstraksi tembaga apakah bersifat eksotermis atau endotermis, dilakukan pengaluran log D terhadap 1/T (K). Hubungan tersebut didapat dari persamaan Van't Hoff sebagai berikut [11] : dimana R adalah konstanta gas ideal dengan nilai 8,314 J/mol.K, T temperatur dalam derajat Kelvin, sementara K Tegangan sel teoritik adalah sebesar 0,89 volt, sementara tegangan sel aktual yang terukur adalah sebesar 2,4 volt. Tegangan sel aktual yang signifikan lebih tinggi ini karena adanya over potensial evolusi oksigen di anoda, over potensial karena hambatan pada elektrolit, dan over potensial karena hambatan pada anoda, katoda dan kontak kelistrikan yang ada.…”

Section: F Pengaruh Temperatur Terhadap Persen Ekstraksi Logamunclassified

Studi Recovery Tembaga dari Limbah Elektrolit Pemurnian Perak Menggunakan Proses Ekstraksi Pelarut Electrowinning dengan Mextral 5640H Sebagai Ekstraktan [Study of Copper Recovery from Spent Electrolyte Silver by Solvent Extraction – Electrowinning Using Mextral 5640 H]

Fathoni¹,

Mubarok²

2017

metal.

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IntisariPenelitian mengenai recovery logam berharga dari limbah cair telah banyak dilakukan. Salah satu caranya adalah melalui proses ekstraksi pelarut -electrowinning. Dalam paper ini didiskusikan proses recovery tembaga dari limbah elektrolit electrorefining perak dengan proses ekstraksi pelarut, stripping dan electrowinning. Serangkaian percobaan ekstraksi pelarut tembaga dengan Mextral 5640H dilakukan terhadap dua jenis sampel larutan limbah elektrolit. Sampel pertama merupakan limbah elektrolit electrorefining perak dengan matriks nitrat tanpa pengolahan terlebih dahulu, sementara sampel kedua merupakan limbah elektrolit yang sudah mengalami proses pengendapan perak dengan penambahan garam klorida sehingga mempunyai matriks klorida. Percobaan ekstraksi pelarut dengan menggunakan sampel pertama tidak memberikan ekstraksi tembaga yang memadai dan tidak selektif terhadap perak, dimana dengan menggunakan konsentrasi ekstraktan 15% (v/v) ko-ekstraksi Ag mencapai 10%, sementara ekstraksi Cu hanya 32%. Percobaan ekstraksi pelarut dengan menggunakan sampel limbah elektrolit kedua mencapai ekstraksi Cu tertinggi sebesar 97% yang diperoleh pada konsentrasi ekstraktan 25% (v/v), pH kesetimbangan 2, nisbah volume organik/aqueous (O/A)2/1 dan temperatur 25 °C. Hasil analisis menunjukkan bahwa proses ekstraksi Cu dalam larutan klorida dengan Mextral 5640H bersifat eksotermis dengan nilai ΔH sebesar -2,97 kJ/mol. Recovery proses stripping Cu tertinggi yang diperoleh sebesar 87,1% yaitu pada konsentrasi asam sulfat 200 gpl, nisbah O/A 2/1 dan temperatur 46 °C dengan konsentrasi tembaga dalam larutan hasil stripping mencapai 50 gpl. Efisiensi arus proses electrowinning sebesar 98,7%, dengan tegangan sel 2,4 volt dan konsumsi energi listrik 2077 kWh/ton-tembaga.

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Solvent Extraction of Nickel and Cobalt from Ammonia-Ammonium Carbonate Solution by Using LIX 84-ICNS

Cited by 13 publications

References 12 publications

The extraction of nickel by emulsion liquid membranes using Cyanex 301 as extractant

The extraction of nickel by emulsion liquid membranes using Cyanex 301 as extractant

Study on hydrometallurgical recovery of copper and rhenium in processing of substandard copper concentrates

Studi Recovery Tembaga dari Limbah Elektrolit Pemurnian Perak Menggunakan Proses Ekstraksi Pelarut Electrowinning dengan Mextral 5640H Sebagai Ekstraktan [Study of Copper Recovery from Spent Electrolyte Silver by Solvent Extraction – Electrowinning Using Mextral 5640 H]

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