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4708

Up-grading of Locally Produced Metallurgical Grade Silicon (MG-Si)

Article

Last updated: 01 Jan 2025

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Subjects

-

Tags

Inorganic chemistry

Abstract

Locally produced metallurgical grade silicon (MG-Si ~ 97%) was upgraded by using wet-milling process. This is including milling of MG-Si in presence of 2M HCl solution for different time periods up to 60 min. The effect of milling time in HCl solution was studied. Soaking of the milled products (at optimum milling time 15 min) with continuous stirring in the same solution of 2M HCl for interval time up to 240 min also were investigated. Finally, the effect of addition of 2M HF to the milled product was discussed. The leached samples were investigated by X-ray fluorescence (XRF), and scanning electron microscope (SEM). It was found that, 99.92% purity of MG-Si was achieved after 15 min milling time with 2M HCl followed by addition 2M HF for 240 min with continuous stirring. About 97 % removal efficiency of the impurities was obtained.

DOI

10.21608/ejchem.2017.2074.1171

Keywords

MG-Si, up-grading of MG-silicon, purification of silicon, acid leaching

Authors

First Name

Heba

Last Name

Ali

MiddleName

Hussein

Affiliation

Minerals Technology Department – Pyrometallurgy Lab., Central metallurgical Rsearch & Development Institute (CMRDI)

Email

hebahma@yahoo.com

City

-

Orcid

-

First Name

Mohamed

Last Name

El-Sadek

MiddleName

Hussein

Affiliation

Minerals Technology Department – Pyrometallurgy Lab., Central metallurgical Rsearch & Development Institute (CMRDI)

Email

mhmdelsadek@yahoo.com

City

-

Orcid

-

First Name

Mohamed

Last Name

Morsi

MiddleName

-

Affiliation

Minerals Technology Department – Pyrometallurgy Lab., Central metallurgical Rsearch & Development Institute (CMRDI)

Email

dr_morsi2002@hotmail.com

City

-

Orcid

-

First Name

Kamilia

Last Name

El-Barawy

MiddleName

-

Affiliation

Minerals Technology Department – Pyrometallurgy Lab., Central metallurgical Rsearch & Development Institute (CMRDI)

Email

kamilia48@hotmail.com

City

-

Orcid

-

First Name

Rabab

Last Name

Abou-Shahba

MiddleName

-

Affiliation

Physical Chemistry , Faculty of Science(Girls), Al-Azhar University

Email

mmbel_sabbah@hotmail.com

City

-

Orcid

-

Volume

61

Article Issue

1

Related Issue

936

Issue Date

2018-02-01

Receive Date

2017-11-28

Publish Date

2018-02-01

Page Start

155

Page End

161

Print ISSN

0449-2285

Online ISSN

2357-0245

Article File

EJCHEM_Volume 61_Issue 1_Pages 155-161.pdf

PDF . 1.4MB

Link

https://ejchem.journals.ekb.eg/article_4708.html

Detail API

https://ejchem.journals.ekb.eg/service?article_code=4708

Order

14

Type

Original Article

Type Code

297

Publication Type

Journal

Publication Title

Egyptian Journal of Chemistry

Publication Link

https://ejchem.journals.ekb.eg/

MainTitle

Up-grading of Locally Produced Metallurgical Grade Silicon (MG-Si)

Details

Type

Article

Created At

22 Jan 2023