Jurnal
Cerium, Neodimium, and Lanthanum Leaching from Rare Earth Oxides (REO) using Hydrochloric Acid
Indonesian Journal of Chemical Science · Vol. 10 No. 2 (2021) · hlm. 82–87
- ISSN
- 2502-6844, 2252-6951
- Terbit
- 2021-09-01
- Penerbit
- Universitas Negeri Semarang
- Bahasa
- eng
Abstrak
Rare earth metal hydroxide (REOH) is a mixture of the elements lanthanide, yttrium, and scandium produced from the processing of monazite sand. This mixture has benefits in the modern technology industry, especially elements of Ce, La, and Nd. Separation of Ce, La, and Nd from the mixture has been carried out, but it has several drawbacks with the large use of chemicals that have an impact on the environment from the results of their processing waste and the length of time it takes, so the best solution is needed to overcome it. The perfect solution in the process of separating Ce, La, and Nd from REOH is leaching. Leaching is the extraction of acids with bases to form salt and water. This research begins with the REOH calcination process at a temperature of 1000⁰ C for 2 hours to evaporate volatiles and decompose the compounds. The results of calcination were leached using hydrochloric acid with a concentration variation of 0.3-1.2 M, temperature 30-75 ° C, a ratio of REO and solvent 1:5, and time variation of 5-20 minutes to optimize leaching efficiency. The results of leaching in residues were analyzed by XRF. The optimum leaching of the variation of the concentration of hydrochloric acid 1,2 M for 20 minutes resulted in the leaching efficiency of La and Nd respectively 33,297% dan 26,503%, and the leaching efficiency of Ce was 10,153% of the concentration of hydrochloric acid 0,9 M for 20 minutes. At a temperature variation of 75⁰ C and a time of 10 minutes, the leaching efficiency La and Ce were 55,87% dan 0,04%, respectively. The efficiency of Nd at 45⁰C for 20 minutes was 26,93%.
Jaringan kolaborasi para penulis
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- State University of Semarang
- Universiti Teknologi MARA
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- Organisasi berbeda
- Organisasi sama
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Tampilkan sebagai tabel
| Rekan penulis | Organisasi | Artikel bersama |
|---|---|---|
| F. Widhi Mahatmanti | Afiliasi tidak diketahui | 4 |
| Harjono Harjono | Afiliasi tidak diketahui | 3 |
| Sri Wardani | State University of Semarang | 3 |
| Endang Susilaningsih | State University of Semarang | 2 |
| M. Dhiyaulkhaq | State University of Semarang | 1 |
| Nanik Wijayati | State University of Semarang | 1 |
| Kasmui Kasmui | State University of Semarang | 1 |
| D. Nasekhah | Afiliasi tidak diketahui | 1 |
| M. H. Ismail | Universiti Teknologi MARA | 1 |
| Nuni Widiarti | State University of Semarang | 1 |
| Budi Astuti | State University of Semarang | 1 |
| Sungkowo Sungkowo | State University of Semarang | 1 |
| Yuan Maylia Rosanti | State University of Semarang | 1 |
| Rojja Maysa Rohmah | State University of Semarang | 1 |
| Shinta Hilda | State University of Semarang | 1 |
| Syiva Zakia Aulia | State University of Semarang | 1 |
| Devitri Sulistyaningrum | State University of Semarang | 1 |
| Sri Nurhayati | State University of Semarang | 1 |
| Eko Budi Susatyo | State University of Semarang | 1 |
| Sri Susilogati Sumarti | State University of Semarang | 1 |
| Siti Nurfaijah | Afiliasi tidak diketahui | 1 |
| Woro Sumarni | Afiliasi tidak diketahui | 1 |
| Sri Haryani | State University of Semarang | 1 |
| Siti Marfu'ah | Afiliasi tidak diketahui | 1 |
| Sudarmin Sudarmin | State University of Semarang | 1 |
| Delfris Ariya Pratama Ladjidji | Afiliasi tidak diketahui | 1 |
| Dimas Gilang Ramadhani | Afiliasi tidak diketahui | 1 |
| Agung Ade Yulianto | Afiliasi tidak diketahui | 1 |
| Kris Massora | Afiliasi tidak diketahui | 1 |
| Holifiled Widastra | Afiliasi tidak diketahui | 1 |
| Hoirun Nisa | Afiliasi tidak diketahui | 1 |
| Eko Budi Susatyo | Afiliasi tidak diketahui | 1 |
| Aris Wijayanti | Afiliasi tidak diketahui | 1 |
| Sukarjo Sukarjo | Afiliasi tidak diketahui | 1 |
| Irawati Irawati | Afiliasi tidak diketahui | 1 |
| Indri Rakhmawati | Afiliasi tidak diketahui | 1 |
| Dinar Alghifari Ramadhan | Afiliasi tidak diketahui | 1 |
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