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Publication detail
Zhakupova, G., Sadenova, M.A., Varbanov, P.S.
Original Title
Possible Alternatives for Cost-Effective Neutralisation of Fluoroanhydrite Minimising Environmental Impact
Type
journal article in Scopus
Language
English
Original Abstract
This article discusses the options for neutralising the waste fluoroanhydrite also containing residues of sulphuric acid. A process is proposed by which all reagents provide a neutral or alkaline environment with pH ≥ 7 which remains unchanged for more than 28 d. This indicates that complete and irreversible neutralisation of the toxic fluorine-containing waste materials was ensured. The used reagents were CaO, CaCO3, KOH, Na2CO3 and Ca(OH)2. The most efficient reagents, also resulting in stability of the product are CaO and Ca(OH)2. The obtained results lead to proposing the use of the process output as a component for the production of ceramic products for the construction industry. This will allow obtaining additional benefits from replacing primary natural materials and the associated emissions for their sourcing and production.
Keywords
fluoroanhydrite minimising; fluoroanhydrite; neutralisation; neutralisation of fluoroanhydrite; environmental impact;
Authors
Released
30. 10. 2019
Publisher
Italian Association of Chemical Engineering - AIDIC
ISBN
2283-9216
Periodical
Chemical Engineering Transactions
Number
76
State
Republic of Italy
Pages from
1069
Pages to
1074
Pages count
6
URL
https://www.aidic.it/cet/19/76/179.pdf
BibTex
@article{BUT163320, author="Petar Sabev {Varbanov}", title="Possible Alternatives for Cost-Effective Neutralisation of Fluoroanhydrite Minimising Environmental Impact", journal="Chemical Engineering Transactions", year="2019", number="76", pages="1069--1074", doi="10.3303/CET1976179", issn="2283-9216", url="https://www.aidic.it/cet/19/76/179.pdf" }