Indonesian Journal of Pure and Applied Chemistry
Vol 4, No 3 (2021)

KOMPOSISI UNSUR DAN KARAKTERISASI MINERAL MAGNETIK DALAM RED MUD, RESIDU BAUKSIT DI PT. INDONESIA CHEMICAL ALUMINA (ICA) KALIMANTAN BARAT (ELEMENTAL COMPOSITION AND MINERAL CHARACTERISTICS OF MAGNETIC RED MUD, BAUXITE RESIDUE AT PT. INDONESIA CHEMICAL ALUMINA (ICA), WEST KALIMANTAN)

Titin Anita Zaharah (Department of Chemistry, Tanjungpura University, Pontianak, Indonesia)
Wanda Rossalina (Department of Chemistry, Tanjungpura University, Pontianak, Indonesia)
Imelda Hotmarisi Silalahi (Department of Chemistry, Tanjungpura University, Pontianak, Indonesia)

Article Info

Publish Date
15 Nov 2021

Abstract

Red mud or commonly called bauxite residue is solid waste generated from the purification of bauxite into alumina through the Bayer process. The red mud was initially dried under the sun then was magnetically separated to give magnetic sand. The magnetic sand was neutralized using copious of water, refined and then characterized using XRF and XRD methods. The results show that the main elements contained in the magnetic sand from the red mud are silicon, aluminum, iron, titanium, and magnesium. XRD analysis using Search-Match followed by the calculation using Rietveld refinement showed that the sand consisted of ferrosillite (55.3%), hematite (33.9%) and ilmenite (10.7%). Elemental analysis using XRF showed the percentage of Fe 29.15%, Si 22.49%, Ca 3.19%, and Ti 2.92%, followed by other elements with low percentages.

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Journal Info
Indonesian Journal of Pure and Applied Chemistry
Website

Abbrev

IJoPAC

Publisher

Universitas Tanjungpura

Subject

Biochemistry, Genetics & Molecular Biology Chemistry

Description

Indonesian Journal of Pure and Applied Chemistry (IJoPAC) was first established in 2018 as a scientific journal that accommodates researchers and education practitioners to publish scientific work and research results which are the results of experiments or literature studies in the field of ...