Role of hydrazine and hydrogen peroxide in aluminium hydroxide precipitation from sodium aluminate solution

N.K. Sahu; C.K. Sarangi; B. Dash; B.C. Tripathy; B.K. Satpathy; D. Meyrick; I.N. Bhattacharya

doi:10.1016/S1003-6326(15)63644-5

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Role of hydrazine and hydrogen peroxide in aluminium hydroxide precipitation from sodium aluminate solution

Journal article

Peer reviewed

Role of hydrazine and hydrogen peroxide in aluminium hydroxide precipitation from sodium aluminate solution

N.K. Sahu, C.K. Sarangi, B. Dash, B.C. Tripathy, B.K. Satpathy, D. Meyrick and I.N. Bhattacharya

Transactions of Nonferrous Metals Society of China, Vol.25(2), pp.615-621

2015

DOI: https://doi.org/10.1016/S1003-6326(15)63644-5

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Abstract

Aluminium hydroxide precipitation from synthetic sodium aluminate solution was studied in the presence of hydrazine or hydrogen peroxide. The addition of low concentration of hydrazine is found to be effective, while higher amount of hydrogen peroxide is required to generate similar effect. XRD data confirm the product phase to be gibbsitic by nature. The scanning electron micrographs (SEM) show that agglomerated products form in the presence of hydrazine while fine discrete particles are produced with hydrogen peroxide. The probable mechanism of precipitation in the presence of hydrazine and hydrogen peroxide is also discussed.

Details

Title: Role of hydrazine and hydrogen peroxide in aluminium hydroxide precipitation from sodium aluminate solution
Authors/Creators: N.K. Sahu (Author/Creator)
C.K. Sarangi (Author/Creator)
B. Dash (Author/Creator)
B.C. Tripathy (Author/Creator)
B.K. Satpathy (Author/Creator)
D. Meyrick (Author/Creator)
I.N. Bhattacharya (Author/Creator)
Publication Details: Transactions of Nonferrous Metals Society of China, Vol.25(2), pp.615-621
Publisher: Nonferrous Metals Society of China
Identifiers: 991005541890507891
Copyright: © 2015 The Nonferrous Metals Society of China.
Murdoch Affiliation: School of Engineering and Information Technology
Language: English
Resource Type: Journal article

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Collaboration types: Domestic collaboration; International collaboration
Citation topics: 7 Engineering & Materials Science; 7.229 Mineral & Metal Processing; 7.229.2385 Red Mud Valorization
Web Of Science research areas: Metallurgy & Metallurgical Engineering
ESI research areas: Materials Science