Publication detail

Possible Alternatives for Cost-Effective Neutralisation of Fluoroanhydrite Minimising Environmental Impact

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

Zhakupova, G., Sadenova, M.A., Varbanov, P.S.

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"
}