blackmetИзвестия высших учебных заведений. Черная МеталлургияIzvestiya. Ferrous Metallurgy0368-07972410-2091National University of Science and Technology "MISIS"10.17073/0368-0797-2022-7-471-478blackmet-2340Research ArticleМЕТАЛЛУРГИЧЕСКИЕ ТЕХНОЛОГИИMETALLURGICAL TECHNOLOGIESТермическое обогащение никеля из лимонита методом селективного восстановленияThermal upgrading of nickel from limonite by means of selective reductionhttps://orcid.org/0000-0003-3460-469XБахфиФ.BahfieF.

Фатхан Бахфи, научный сотрудник, Научно-исследовательский центр горных технологий, Национальное агентство исследований и инноваций Индонезии; аспирант, Университет Индонезии

Индонезия, 35361, Лампунг, Южный Лампунг

Индонезия, 16424, Западная Ява, Депок, Беджи

Fathan Bahfie, Researcher, Research Center of Mining Technology, National Research and Innovation Agency of Indonesia; Postgraduate, University of Indonesia

Jalan Ir. Sutami Km. 15, South Lampung, Lampung 35361, Indonesia

Pondok Cina, Beji, Depok City, West Java 16424, Indonesia

fathanbahfie@gmail.comhttps://orcid.org/0000-0002-6142-3918МанафА.ManafA.

Азвар Манаф, д.н., профессор кафедры физики, факультет математики и естественных наук

Индонезия, 16424, Западная Ява, Депок, Беджи

Azwar Manaf, Dr., Prof. of the Chair of Physics, Faculty of Mathematics and Science

Pondok Cina, Beji, Depok City, West Java 16424, Indonesia

azwar@ui.ac.idhttps://orcid.org/0000-0001-9364-4291АстутиВ.AstutiW.

Види Астути, д.т.н., научный сотрудник

Индонезия, 35361, Лампунг, Южный Лампунг

Widi Astuti, Dr. Eng, Researcher

Jalan Ir. Sutami Km. 15, South Lampung, Lampung 35361, Indonesia

widi.mineral@gmail.comhttps://orcid.org/0000-0002-1329-5296НурджаманФ.NurjamanF.

Фаджар Нурджаман, д.н., научный сотрудник

Индонезия, 35361, Лампунг, Южный Лампунг

Fajar Nurjaman, Dr., Researcher

Jalan Ir. Sutami Km. 15, South Lampung, Lampung 35361, Indonesia

nurjaman_80@yahoo.comhttps://orcid.org/0000-0002-8254-839XПрасетиоЭ.PrasetyoE.

Эрик Прасетио, к.т.н., научный сотрудник, Научно-исследовательс­кий центр горных технологий, Национальное агентство исследований и инноваций Индонезии; постдокторант кафедры химичес­кой технологии, Норвежский университет науки и технологии

Индонезия, 35361, Лампунг, Южный Лампунг

Норвегия, Тронхейм, Глосхауген, N-7491, Кьеми, 4

Erik Prasetyo, PhD, Researcher, Research Center of Mining Technology, National Research and Innovation Agency of Indonesia, Postdoctorate of the Chair of Chemical Engineering, Norwegian University of Science and Technology

Jalan Ir. Sutami Km. 15, South Lampung, Lampung 35361, Indonesia

4 Kjemi Gløshaugen, Trondheim 7491, Norway

erik_exploreur@yahoo.comhttps://orcid.org/0000-0001-6023-5619СумардиС.SumardiS.

Сламет Сумарди, научный сотрудник

Индонезия, 35361, Лампунг, Южный Лампунг

Slamet Sumardi, Researcher

Jalan Ir. Sutami Km. 15, South Lampung, Lampung 35361, Indonesia

slametsumardi99@gmail.comНаучно-исследовательский центр горных технологий, Национальное агентство исследований и инноваций Индо­незии; Университет ИндонезииИндонезияResearch Center of Mining Technology, National Research and Innovation Agency of Indonesia; University of IndonesiaIndonesiaУниверситет ИндонезииИндонезияUniversity of IndonesiaIndonesiaНаучно-исследовательский центр горных технологий, Национальное агентство исследований и инноваций Индо­незииИндонезияResearch Center of Mining Technology, National Research and Innovation Agency of IndonesiaIndonesiaНаучно-исследовательский центр горных технологий, Национальное агентство исследований и инноваций Индо­незии; Норвежский университет науки и технологииИндонезияResearch Center of Mining Technology, National Research and Innovation Agency of Indonesia; Norwegian University of Science and TechnologyIndonesia202227072022657471478Copyright © Бахфи Ф., Манаф А., Астути В., Нурджаман Ф., Прасетио Э., Сумарди С., 20222022Бахфи Ф., Манаф А., Астути В., Нурджаман Ф., Прасетио Э., Сумарди С.Bahfie F., Manaf A., Astuti W., Nurjaman F., Prasetyo E., Sumardi S.Данная работа распространяется под лицензией Creative Commons Attribution 4.0.This work is licensed under a Creative Commons Attribution 4.0 License.https://fermet.misis.ru/jour/article/view/2340

Для изучения минералогического состава и параметров лимонитовых руд из Индонезии применялись методы рентгеновской дифракции (XRD), рентгеновской флуоресценции (XRF), энергодисперсионного микроанализа на растровом электронном микро­ско­пе (SEM–EDS) и дифференциального термического анализа (DTA). Полученные данные указывают на наличие сложного внутреннего ядра в латеритной руде. Содержание Ni, Fe, Mg, Al и Si в лимоните составляет 1,4; 50,5; 1,81; 4,86 и 16,5 % (вес.) соответственно, оксидов/гид­роксидов железа – 94,4 %, силикатов – 5,6 %. Термический анализ показывает, что при низкой температуре (200 – 300 °C) в лимоните происходит фазовый переход, при этом гетит замещается гематитом. Эта фаза является оптимальным вариантом для диффузии никеля в железо. Более того, для данного лимонита в качестве подходящего метода было выбрано термическое обогащение.

X-ray diffraction (XRD), X-ray fluorescence (XRF), scanning electron microscopy energy dispersion spectroscopy (SEM–EDS), and differential thermal analysis (DTA) measurements were used to investigate the mineralogical characteristics and distribution of data set in limonite soil from Indonesia. The findings point to a complicated inner core in laterite ore. Ni, Fe, Mg, Al, and Si levels in limonite are 1.4, 50.5, 1.81, 4.86 and 16.5 wt %, respectively. The iron oxide/oxyhydroxide content of limonite is 94.4 and 5.6 % silicate. DTA shows that limonite has a phase transition in the low temperature (200 – 300 °C) with the goethite transformation to hematite. This phase is good optimalization for nickel diffusion in the iron. Moreover, for this limonite, the thermal upgrading was used as a good method.

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The authors declare that there are no conflicts of interest present.