Alumina Extraction from Red Mud by Magnetic Separation
Alumina extraction from red mud has been investigated by magnetic separation with three-step treatment. First, the addition of red mud with Na2CO3 (12 wt%) and heated at 110 °C for 4 h. The second step was carbon reduction using coal with mass ratio of (red mud+Na2CO3) : coal was 1:3 then roasted at...
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doaj-109851e6f865407196b5b92d5d4ffb1d2020-11-25T02:49:35ZengUniversitas Gadjah MadaIndonesian Journal of Chemistry1411-94202460-15782018-05-0118233133610.22146/ijc.2510221112Alumina Extraction from Red Mud by Magnetic SeparationSuprapto Suprapto0Zahrotul Istiqomah1Eko Santoso2Ahmad Anwarud Dawam3Didik Prasetyoko4Department of Chemistry, Faculty of Science, Institut Teknologi Sepuluh Nopember, Keputih, Sukolilo, Surabaya 60111, IndonesiaDepartment of Chemistry, Faculty of Science, Institut Teknologi Sepuluh Nopember, Keputih, Sukolilo, Surabaya 60111, IndonesiaDepartment of Chemistry, Faculty of Science, Institut Teknologi Sepuluh Nopember, Keputih, Sukolilo, Surabaya 60111, IndonesiaDepartment of Chemistry, Faculty of Science, Institut Teknologi Sepuluh Nopember, Keputih, Sukolilo, Surabaya 60111, IndonesiaDepartment of Chemistry, Faculty of Science, Institut Teknologi Sepuluh Nopember, Keputih, Sukolilo, Surabaya 60111, IndonesiaAlumina extraction from red mud has been investigated by magnetic separation with three-step treatment. First, the addition of red mud with Na2CO3 (12 wt%) and heated at 110 °C for 4 h. The second step was carbon reduction using coal with mass ratio of (red mud+Na2CO3) : coal was 1:3 then roasted at temperature of 850, 950, and 1050 °C for 1, 2, and 3 h. The third step was magnetic separation. The magnetic separation was carried out in order to remove magnetite produced during roasting process. Magnetic and non-magnetic phases obtained were characterized by XRD and SEM-EDX techniques. The non-magnetic phase obtained was leached using HCl 6 M, and then aluminum content was determined by Inductively Coupled Plasma (ICP). The result revealed that the highest aluminum oxide extracted from the red mud was 20.66 wt% obtained by roasting at temperature of 1050 °C for 2 h.https://jurnal.ugm.ac.id/ijc/article/view/25102red mudmagnetic separationalumina |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Suprapto Suprapto Zahrotul Istiqomah Eko Santoso Ahmad Anwarud Dawam Didik Prasetyoko |
spellingShingle |
Suprapto Suprapto Zahrotul Istiqomah Eko Santoso Ahmad Anwarud Dawam Didik Prasetyoko Alumina Extraction from Red Mud by Magnetic Separation Indonesian Journal of Chemistry red mud magnetic separation alumina |
author_facet |
Suprapto Suprapto Zahrotul Istiqomah Eko Santoso Ahmad Anwarud Dawam Didik Prasetyoko |
author_sort |
Suprapto Suprapto |
title |
Alumina Extraction from Red Mud by Magnetic Separation |
title_short |
Alumina Extraction from Red Mud by Magnetic Separation |
title_full |
Alumina Extraction from Red Mud by Magnetic Separation |
title_fullStr |
Alumina Extraction from Red Mud by Magnetic Separation |
title_full_unstemmed |
Alumina Extraction from Red Mud by Magnetic Separation |
title_sort |
alumina extraction from red mud by magnetic separation |
publisher |
Universitas Gadjah Mada |
series |
Indonesian Journal of Chemistry |
issn |
1411-9420 2460-1578 |
publishDate |
2018-05-01 |
description |
Alumina extraction from red mud has been investigated by magnetic separation with three-step treatment. First, the addition of red mud with Na2CO3 (12 wt%) and heated at 110 °C for 4 h. The second step was carbon reduction using coal with mass ratio of (red mud+Na2CO3) : coal was 1:3 then roasted at temperature of 850, 950, and 1050 °C for 1, 2, and 3 h. The third step was magnetic separation. The magnetic separation was carried out in order to remove magnetite produced during roasting process. Magnetic and non-magnetic phases obtained were characterized by XRD and SEM-EDX techniques. The non-magnetic phase obtained was leached using HCl 6 M, and then aluminum content was determined by Inductively Coupled Plasma (ICP). The result revealed that the highest aluminum oxide extracted from the red mud was 20.66 wt% obtained by roasting at temperature of 1050 °C for 2 h. |
topic |
red mud magnetic separation alumina |
url |
https://jurnal.ugm.ac.id/ijc/article/view/25102 |
work_keys_str_mv |
AT supraptosuprapto aluminaextractionfromredmudbymagneticseparation AT zahrotulistiqomah aluminaextractionfromredmudbymagneticseparation AT ekosantoso aluminaextractionfromredmudbymagneticseparation AT ahmadanwaruddawam aluminaextractionfromredmudbymagneticseparation AT didikprasetyoko aluminaextractionfromredmudbymagneticseparation |
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