A study of cerium extraction from Bangka tin slag using hydrochloric acid
| Autor: | Kurnia Trinopiawan, Zaki Mubarok, Kurnia Setiawan Widana, Budi Yuli Ani, Yarianto Sugeng Budi Susilo, Riesna Prassanti, Iwan Susanto, Sulaksana Permana, Johny Wahyuadi Soedarsono |
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| Rok vydání: | 2020 |
| Předmět: |
Materials science
020209 energy 0211 other engineering and technologies Energy Engineering and Power Technology chemistry.chemical_element Hydrochloric acid Sodium silicate 02 engineering and technology hcl water leaching Industrial and Manufacturing Engineering chemistry.chemical_compound bangka tin slag Management of Technology and Innovation lcsh:Technology (General) 021105 building & construction 0202 electrical engineering electronic engineering information engineering lcsh:Industry Electrical and Electronic Engineering Dissolution optimum conditions Applied Mathematics Mechanical Engineering alkaline fusion Computer Science Applications cerium Cerium chemistry Control and Systems Engineering lcsh:T1-995 lcsh:HD2321-4730.9 Particle size Leaching (metallurgy) Inductively coupled plasma Tin Nuclear chemistry |
| Zdroj: | Eastern-European Journal of Enterprise Technologies, Vol 4, Iss 6 (106), Pp 24-30 (2020) |
| ISSN: | 1729-4061 1729-3774 |
| DOI: | 10.15587/1729-4061.2020.210530 |
| Popis: | Bangka Tin Slag (BTS) was a tin-smelting waste containing high silica and other elements that have high economic value, including cerium, which is a rare earth element. Silica and Ce2O3contents in BTS were 32.86% and 1.35% respectively. Other elements that have high concentrations in BTS include 15.46% of CaO, 10.88% of Al2O3, and 9.20% of Fe2O3. The objective of this study was to determine the optimum conditions for cerium extraction using HCl, which includes HCl concentration, temperature, particle size, stirring speed, and dissolution time. In addition, the effect of these parameters on Ce extraction was also studied. The one-factor-at-time method was used to determine the optimum conditions. Pretreatment of BTS with the alkaline fusion method and water leaching was done to reduce both the silica content and increasing its porosity. Alkaline fusion carried out at 700℃ using NaOH converts the silica into water-soluble sodium silicate. Characterization of the slag structure before and after the pretreatment process was completely carried out by using X-ray diffraction (XRD), X-ray fluorescence (XRF), Scanning electron microscope (SEM), and optical microscope. Furthermore, measurement of Ce content in the filtrate of the dissolution process was performed with inductively coupled plasma – optical emission spectrometry (ICP-OES). The results showed that the optimum of 75.16% Ce was extracted by using some parameter conditions, namely by 2.5M of HCl concentration, at the temperature of 40℃, with the particle size of –325mesh, stirring speed of 150rpm, and dissolution time of 180minutes. Each parameter gives a significant effect on Ce extraction, wherein the initial stage, the increase in the value of each parameter gives an increase in Ce extraction and begins to decrease when equilibrium occurs |
| Databáze: | OpenAIRE |
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