The Effect of Grinding on Tremolite Asbestos and Anthophyllite Asbestos
The six commercial asbestos minerals (chrysotile, fibrous actinolite, crocidolite, amosite, fibrous tremolite, and fibrous anthophyllite) are classified by the IARC as carcinogenic to humans. There are currently several lines of research dealing with the inertisation of asbestos minerals among which...
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doaj-a58290b2917446c9aecb7f19e94a0f342020-11-25T01:04:47ZengMDPI AGMinerals2075-163X2018-06-018727410.3390/min8070274min8070274The Effect of Grinding on Tremolite Asbestos and Anthophyllite AsbestosAndrea Bloise0Robert Kusiorowski1Alessandro F. Gualtieri2Department of Biology, Ecology and Earth Sciences, University of Calabria, via Pietro Bucci, I-87036 Rende, CS, ItalyInstitute of Ceramics and Building Materials, Refractory Materials Division in Gliwice, ul. Toszecka 99, 44-100 Gliwice, PolandDepartment of Chemical and Geological Sciences, University of Modena and Reggio Emilia, I-41125 Modena, ItalyThe six commercial asbestos minerals (chrysotile, fibrous actinolite, crocidolite, amosite, fibrous tremolite, and fibrous anthophyllite) are classified by the IARC as carcinogenic to humans. There are currently several lines of research dealing with the inertisation of asbestos minerals among which the dry grinding process has received considerable interest. The effects of dry grinding on tremolite asbestos and anthophyllite asbestos in eccentric vibration mills have not yet been investigated. Along the research line of the mechanical treatment of asbestos, the aim of this study was to evaluate the effects of dry grinding in eccentric vibration mills on the structure, temperature stability, and fibre dimensions of tremolite asbestos from Val d’Ala, (Italy) and UICC standard anthophyllite asbestos from Paakkila mine (Finland) by varying the grinding time (30 s, 5 min, and 10 min). After grinding for 30 s to 10 min, tremolite asbestos and anthophyllite asbestos showed a decrease in dehydroxylation and breakdown temperatures due to the increase in lattice strain and the decrease in crystallinity. Moreover, after grinding up to 10 min, tremolite and anthophyllite fibres were all below the limits defining a countable fibre according to WHO.http://www.mdpi.com/2075-163X/8/7/274asbestostremoliteanthophyllitegrinding |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Andrea Bloise Robert Kusiorowski Alessandro F. Gualtieri |
spellingShingle |
Andrea Bloise Robert Kusiorowski Alessandro F. Gualtieri The Effect of Grinding on Tremolite Asbestos and Anthophyllite Asbestos Minerals asbestos tremolite anthophyllite grinding |
author_facet |
Andrea Bloise Robert Kusiorowski Alessandro F. Gualtieri |
author_sort |
Andrea Bloise |
title |
The Effect of Grinding on Tremolite Asbestos and Anthophyllite Asbestos |
title_short |
The Effect of Grinding on Tremolite Asbestos and Anthophyllite Asbestos |
title_full |
The Effect of Grinding on Tremolite Asbestos and Anthophyllite Asbestos |
title_fullStr |
The Effect of Grinding on Tremolite Asbestos and Anthophyllite Asbestos |
title_full_unstemmed |
The Effect of Grinding on Tremolite Asbestos and Anthophyllite Asbestos |
title_sort |
effect of grinding on tremolite asbestos and anthophyllite asbestos |
publisher |
MDPI AG |
series |
Minerals |
issn |
2075-163X |
publishDate |
2018-06-01 |
description |
The six commercial asbestos minerals (chrysotile, fibrous actinolite, crocidolite, amosite, fibrous tremolite, and fibrous anthophyllite) are classified by the IARC as carcinogenic to humans. There are currently several lines of research dealing with the inertisation of asbestos minerals among which the dry grinding process has received considerable interest. The effects of dry grinding on tremolite asbestos and anthophyllite asbestos in eccentric vibration mills have not yet been investigated. Along the research line of the mechanical treatment of asbestos, the aim of this study was to evaluate the effects of dry grinding in eccentric vibration mills on the structure, temperature stability, and fibre dimensions of tremolite asbestos from Val d’Ala, (Italy) and UICC standard anthophyllite asbestos from Paakkila mine (Finland) by varying the grinding time (30 s, 5 min, and 10 min). After grinding for 30 s to 10 min, tremolite asbestos and anthophyllite asbestos showed a decrease in dehydroxylation and breakdown temperatures due to the increase in lattice strain and the decrease in crystallinity. Moreover, after grinding up to 10 min, tremolite and anthophyllite fibres were all below the limits defining a countable fibre according to WHO. |
topic |
asbestos tremolite anthophyllite grinding |
url |
http://www.mdpi.com/2075-163X/8/7/274 |
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