Nurhidayati, Wulan (2024) Recovery Skandium Dari Larutan Hasil Sulfation Roasting-Water Leaching Red mud Dengan Metode Solvent Extraction Menggunakan Ekstraktan D2EHPA. S1 thesis, Fakultas Teknik Universitas Sultan Ageng Tirtayasa.
![[img]](https://eprints.untirta.ac.id/style/images/fileicons/text.png) |
Text (Fulltext)
Wulan Nurhidayati_3334200006_Fulltext.pdf Restricted to Registered users only until 13 September 2034. Download (3MB) |
|
Text (Bab 1)
Wulan Nurhidayati_3334200006_01.pdf Restricted to Registered users only until 13 September 2034. Download (1MB) |
|
Text (Bab 2)
Wulan Nurhidayati_3334200006_02.pdf Restricted to Registered users only until 13 September 2034. Download (775kB) |
|
Text (Bab 3)
Wulan Nurhidayati_3334200006_03.pdf Restricted to Registered users only until 13 September 2034. Download (715kB) |
|
Text (Bab 4)
Wulan Nurhidayati_3334200006_04.pdf Restricted to Registered users only until 13 September 2034. Download (508kB) |
|
Text (Bab 5)
Wulan Nurhidayati_3334200006_05.pdf Restricted to Registered users only until 13 September 2034. Download (11kB) |
|
Text (Daftar Referensi)
Wulan Nurhidayati_3334200006_Ref.pdf Restricted to Registered users only until 13 September 2034. Download (115kB) |
|
Text (Lampiran)
Wulan Nurhidayati_3334200006_Lamp.pdf Restricted to Registered users only until 13 September 2034. Download (1MB) |
Abstract
Currently, rare earth elements (REEs), especially scandium (Sc), are getting a lot of attention because of their versatile applications in the high-tech world. The increase in demand for Sc metal from 2021 to 2022 is 38.5 tons to 50 tons per year with an estimated 910 tons of Sc demand in 2033. The main potential source of Sc is red mud. Red mud is waste from the extraction of alumina from bauxite through the Bayer process. The largest red mud resource in Indonesia is located in West Kalimantan with red mud deposits reaching 17.55 million tons. Sc as the main REE can be extracted from red mud. Sc cannot be extracted directly from red mud because Sc is associated with impurities (Al, Fe, Ti). Recovery of Sc from red mud is carried out using the hydrometallurgical method, namely sulfation roasting-water leaching followed by solvent extraction (SX) to separate Sc from its impurities. Sulfation roasting-water leaching was carried out to decompose impurities at various temperatures (550, 650, 750, 850oC), followed by variations in sulfuric acid concentrations (70, 80, 90%). The SX method was chosen because it is able to selectively separate valuable metals with a high percent recovery. SX was carried out in two stages, namely single extraction of D2EHPA with various concentrations (0.05; 0.10; 0.15; 0.20; 0.3 M), followed by synergistic solvent extraction using D2EHPA and 1-Decanol with various concentrations (10, 20, 30, 40, 50% v/v). The best sulfation roasting-water leaching process at 650oC; 80% H2SO4 because it produced the highest Sc extraction percentage of 1.50% with low impurities of 0.39% Fe and 0.15% Ti. The sulfation roasting-water leaching method is not effective in extracting Sc from red mud, but is effective in removing Fe and Ti. Direct extraction methods such as direct acid leaching and water leaching produce Sc extraction percentages of 3.85% and 0.02% respectively, thus proving to be ineffective for Sc extraction. The best SX results were obtained under synergistic conditions of 0.10 M D2EHPA and 40% v/v 1-Decanol, producing 98.23% Sc, co-extraction of 3.47% Ti, producing a stripping extraction percentage of 97.80% Sc.
| Item Type: | Thesis (S1) | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Contributors: |
|
|||||||||
| Additional Information: | Saat ini, unsur logam tanah jarang (LTJ) khususnya skandium (Sc) mendapat banyak perhatian karena penerapannya serba guna di dunia teknologi tinggi. Peningkatan permintaan logam Sc dari 2021 hingga 2022 yaitu 38,5 ton hingga 50 ton pertahun dengan perkiraan pada 2033 jumlah permintaan Sc mencapai 910 ton. Sumber potensial Sc utama ialah red mud. Red mud ialah limbah hasil ekstraksi alumina dari bauksit melalui proses bayer. Sumber daya red mud terbesar di Indonesia terletak di Kalimantan Barat dengan timbunan red mud mencapai 17,55 juta ton. Sc sebagai LTJ utama dapat diekstraksi dari red mud. Sc tidak dapat diekstraksi secara langsung dari red mud karena Sc berasosiasi dengan pengotor (Al, Fe, Ti). Recovery Sc dari red mud dilakukan dengan metode hidrometalurgi yaitu sulfation roasting-water leaching yang dilanjutkan solvent extraction (SX) untuk memisahkan Sc dari pengotornya. Sulfation roasting-water leaching dilakukan untuk mendekomposisi pengotor pada variasi temperatur (550, 650, 750, 850oC), dilanjutkan variasi konsentrasi asam sulfat (70, 80, 90%). Metode SX dipilih karena mampu memisahkan logam berharga secara selektif dengan persen recovery yang tinggi. SX dilakukan dua tahap yaitu ekstraksi tunggal D2EHPA variasi konsentrasi (0,05; 0,10; 0,15; 0,20; 0,3 M), dilanjutkan dengan synergistic solvent extraction menggunakan D2EHPA dan 1-Decanol variasi konsentrasi (10, 20, 30, 40, 50%v/v). Proses sulfation roasting-water leaching terbaik pada 650oC; H2SO4 80% karena menghasilkan persen ekstraksi Sc paling tinggi yaitu 1,50% dengan pengotor yang rendah yaitu 0,39% Fe dan 0,15% Ti. Metode sulfation roasting-water leaching tidak efektif mengekstraksi Sc dari red mud, namun efektif untuk menghilangkan Fe dan Ti. Metode ekstraksi langsung seperti direct acid leaching dan water leaching menghasilkan persen ekstraksi Sc berturut-turut yaitu 3,85% dan 0,02% sehingga terbukti tidak efektif untuk ekstraksi Sc. Hasil SX terbaik pada kondisi sinergis D2EHPA 0,10 M dan 40%v/v 1-Decanol yang menghasilkan 98,23% Sc, co-extraction Ti 3,47% menghasilkan persen ekstraksi stripping yaitu 97,80% Sc. | |||||||||
| Subjects: | Q Science > QD Chemistry T Technology > TN Mining engineering. Metallurgy |
|||||||||
| Divisions: | 03-Fakultas Teknik 03-Fakultas Teknik > 27201-Jurusan Teknik Metalurgi |
|||||||||
| Depositing User: | Ms Wulan Nurhidayati | |||||||||
| Date Deposited: | 30 Oct 2024 16:00 | |||||||||
| Last Modified: | 30 Oct 2024 16:00 | |||||||||
| URI: | http://eprints.untirta.ac.id/id/eprint/43435 |
Actions (login required)
 |
View Item |