@inproceedings{4355afea0b064c99917945d140353283,
title = "Reducing impurities of silica sand by one step and two step leaching",
abstract = "The demand of high purity quartz sand is increasing for various needs such as solar cells, semiconductor chips, optical fibers, catalytic chemicals, and flat panel displays. One of the most widely used processes for this purpose is the one step or two step leaching method. This study investigated purification process to increase the silica content of quartz sand using the one step leaching method using dilute hydrochloric acid and comparing to two step leaching using dilute hydrochloric acid and sodium bicarbonate as solvent. The effectiveness of the process of removing impurities from quartz sand was studied based on the results of analysis using XRF, XRD, and SEM-EDX. The results showed that two step leaching with dilute HCl and Na2CO3 was effective in reducing the level of impurities in quartz sand after the one step leaching using very low concentrations of hydrochloric acid. Dilute Na2CO3 can improve impurities removal. SiO2 concentration increased from 96.3% in raw material to 98.3 and 98.8% after one-step and two-step leaching, respectively. Effectiveness of removing impurities increased from 54% by one step leaching method to 67.6% by two step leaching method.",
author = "Eni Febriana and Wahyu Mayangsari and Prasetyo, {Agus Budi} and Januar Irawan and Eko Sulistiyono and Murni Handayani and F. Firdiyono and Soedarsono, {Johny Wahyuadi}",
note = "Publisher Copyright: {\textcopyright} 2024 Author(s).; 5th International Seminar on Metallurgy and Materials, ISMM 2022 ; Conference date: 22-11-2022 Through 23-11-2022",
year = "2024",
month = feb,
day = "28",
doi = "10.1063/5.0186247",
language = "English",
series = "AIP Conference Proceedings",
publisher = "American Institute of Physics",
number = "1",
editor = "Yudanto, {Sigit Dwi} and Akbar, {Ari Yustisia} and Fendy Rokhmanto and Dwijaya, {Made Subekti} and Hasbi, {Muhammad Yunan} and Wahyu Mayangsari and Thaha, {Yudi Nugraha}",
booktitle = "AIP Conference Proceedings",
address = "United States",
edition = "1",
}