eprintid: 58824 rev_number: 27 eprint_status: archive userid: 21347 dir: disk0/00/05/88/24 datestamp: 2026-02-27 01:40:23 lastmod: 2026-02-27 01:40:23 status_changed: 2026-02-27 01:40:23 type: thesis metadata_visibility: show contact_email: rizkiindraf29@gmail.com creators_name: Fadilah, Rizki Indra creators_id: 3334210062 contributors_type: http://www.loc.gov/loc.terms/relators/THS contributors_type: http://www.loc.gov/loc.terms/relators/THS contributors_name: Kambuna, Bening Nurul Hidayah contributors_name: Supriyatna, Yayat Iman contributors_id: 199008292020122013 contributors_id: 198704022009122001 corp_creators: FAKULTAS TEKNIK UNIVERSITAS SULTAN AGENG TIRTAYASA title: PENGARUH VARIASI ARUS DAN RASIO REDUKTOR PADA REDUKSI NEODIMIUM OKSIDA (Nd₂O₃) MENJADI LOGAM NEODIMIUM MURNI MENGGUNAKAN METODE ALUMINOTERMIK ispublished: pub subjects: TN divisions: Metalurgi full_text_status: restricted keywords: Reduksi Metalotermik, Aluminotermik, Neodimium note: Proses reduksi neodimium oksida (Nd₂O₃) menjadi logam neodimium dilakukan melalui metode reduksi aluminotermik menggunakan furnace Vacuum Arc Melting (VAM) dengan variasi kuat arus listrik dan rasio reduktor alumunium. Penelitian ini bertujuan untuk mengetahui pengaruh variasi arus dan rasio reduktor terhadap kemurnian dan recovery neodimium, serta menentukan kondisi proses yang memberikan hasil terbaik. Reduksi dilakukan pada arus 150 A, 200 A, dan 250 A dengan rasio alumunium terhadap Nd₂O₃ sebesar 1, 2, dan 3 berdasarkan perhitungan stoikiometri. Karakterisasi bahan baku dilakukan menggunakan XRD dan FTIR, sedangkan produk hasil reduksi dianalisis menggunakan FTIR dan SEM-EDS untuk mengamati perubahan ikatan dan komposisi unsur. Hasil penelitian menunjukkan bahwa kemurnian neodimium tertinggi sebesar 83,52% diperoleh pada arus 150 A dengan rasio reduktor 1, sementara recovery tertinggi sebesar 74,00% dicapai pada arus 250 A dengan rasio reduktor 3. Variasi rasio alumunium berpengaruh terhadap efektivitas pengikatan oksigen dari Nd₂O₃, sedangkan variasi arus listrik memengaruhi energi panas yang berperan dalam peningkatan recovery selama proses reduksi. Kata kunci: Neodimium Oksida, Reduksi Aluminotermik, Kuat Arus, Kemurnian, Recovery. abstract: Proses reduksi neodimium oksida (Nd₂O₃) menjadi logam neodimium dilakukan melalui metode reduksi aluminotermik menggunakan furnace Vacuum Arc Melting (VAM) dengan variasi kuat arus listrik dan rasio reduktor alumunium. Penelitian ini bertujuan untuk mengetahui pengaruh variasi arus dan rasio reduktor terhadap kemurnian dan recovery neodimium, serta menentukan kondisi proses yang memberikan hasil terbaik. Reduksi dilakukan pada arus 150 A, 200 A, dan 250 A dengan rasio alumunium terhadap Nd₂O₃ sebesar 1, 2, dan 3 berdasarkan perhitungan stoikiometri. Karakterisasi bahan baku dilakukan menggunakan XRD dan FTIR, sedangkan produk hasil reduksi dianalisis menggunakan FTIR dan SEM-EDS untuk mengamati perubahan ikatan dan komposisi unsur. Hasil penelitian menunjukkan bahwa kemurnian neodimium tertinggi sebesar 83,52% diperoleh pada arus 150 A dengan rasio reduktor 1, sementara recovery tertinggi sebesar 74,00% dicapai pada arus 250 A dengan rasio reduktor 3. Variasi rasio alumunium berpengaruh terhadap efektivitas pengikatan oksigen dari Nd₂O₃, sedangkan variasi arus listrik memengaruhi energi panas yang berperan dalam peningkatan recovery selama proses reduksi. Kata kunci: Neodimium Oksida, Reduksi Aluminotermik, Kuat Arus, Kemurnian, Recovery. date: 2026-02-27 date_type: published pages: 108 institution: Fakultas Teknik Universitas Sultan Ageng Tirtayasa department: Teknik Metalurgi thesis_type: sarjana thesis_name: sarjana official_url: https://metalurgi.untirta.ac.id/ related_url_url: https://brin.go.id/ornm related_url_type: pub referencetext: DAFTAR PUSTAKA [1] A. Jordens, Y. P. Cheng and K. Waters, "A review of the beneficiation of rare earth element bearing minerals," Mineral Engineering, 2013. 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