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Title: FLOTATION AND MAGNETIC SEPARATION PROCESSES FOR A MINERAL OF WOLLASTONITE
FLOTATION AND MAGNETIC SEPARATION PROCESSES FOR A MINERAL OF WOLLASTONITE

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Surracco Marco; Tilocca Maria Caterina
10.5593/sgem2024/1.1/s04.56
10.5593/sgem2024/1.1
1314-2704
978-619-7603-67-5
English
24
1.1
•    Prof. DSc. Oleksandr Trofymchuk, UKRAINE 
•    Prof. Dr. hab. oec. Baiba Rivza, LATVIA
4.Mineral Processing
This paper presents the results of laboratory processing tests conducted to explore the potential for beneficiation of a wollastonite mineral (calcium metasilicate, CaSiO3). The ore studied comes from a mineralized body located in the southern part of Sardinia (Italy), which has been studied in the past with geological surveys and sampling. In the investigated area the mineralization was very irregular. The encasing rocks consist of schist and the mineralized body is composed of wollastonite associated with limestone, garnets and silica. The sample used for treatment tests was taken from this area and underwent various tests, including grinding, froth flotation, and magnetic separation. Finally, we conducted an overall treatment test using the beneficiation techniques that yielded the best results in the previous experiments. The treatment scheme followed in the overall test utilized simple techniques such as grinding, calcite flotation and magnetic separation. As a result, the concentrate contained 80% wollastonite and met the pollutant element specifications. The final grinding stage was necessary to meet the market's required particle size specifications. The flotation tests were conducted in a Denver laboratory cell, while a Jones wet high-intensity magnetic laboratory scale separator was used for the magnetic separation tests. The effectiveness of the various steps of testing was verified by comparing the results obtained with the specifications required by the wollastonite market, which impose minimum quantities of contaminants, such as iron, titanium and magnesium, while being less severe with regard to SiO2 and CaO contents.
[1] Surracco Marco, Tilocca Maria Caterina, “Beneficiation of a Wollastonite Mineral”, in XXIInd International Multidisciplinary Scientific GeoConference Surveying, Geology and Mining, Ecology and Management, SGEM 2022, Conference proceedings, pp. 457-465, 2-11 July, Albena (Varna), Bulgaria.
[2] Development of Exploration and Industrial Technology to Exploit New Sources of Wollastonite in Europe. Brite-Euram II Project No. 5058-Syntesis Report. Project Funded by the European Community Under the Brite/Euram Programme.
[3] Kvyatkovskaya, K.K., Meitina, V.A., Enrichability of wollastonite rocks and the properties of wollastonitic wall tiles, Society for Mining Metallurgy and Exploration Inc. (ISSN 0361-7610), Glass and Ceramics #10, 25, pages 613-615, Springer, translated from Stekloi Keramika, No. 10, pp. 27-30, October 1968.
[4] Maxim L.D. and Mc Connell E.E., A Review of the Toxicology and Epidemiology of Wollastonite, Inhal. Toxicol., 2005, 17, pp. 451-466.
[5] V. V. Marchevskaya, S. V. Tereshchenko , A. F. Baranovsky, E. V. Beluzhenko , and E. D. Rukhlenko, Wollastonite Concentrate Production from Raw Material of Tyrnyauz Deposit, ISSN 1062-7391, Journal of Mining Science, 2017, Vol. 53, No. 3, pp. 585–590. © Pleiades Publishing, Ltd., 2017. Original Russian Text © V.V. Marchevskaya, S.V. Tereshchenko, A.F. Baranovsky, E.V. Beluzhenko, E.D. Rukhlenko, 2017, published in Fiziko-Tekhnicheskie Problemy Razrabotki Poleznykh Iskopaemykh, 2017, No. 3, pp. 175–181.
[6] Bulatovic S.M., Handbook of flotation reagents – Flotation of industrial minerals, Vol. III, Cap. 30 – Wollastonite, Elsevier, 2015.
[7] R. Sivamohan and F. Huang, Processing of the finely and complexly interlayered calcite rich wollastonite ore from northern Sweden, Minerals & Metallurgical Processing, May 1989, pp. 69-72.
[8] Robert L. Virta, U.S. Geological Survey, Industrial Minerals of the United States, Wollastonite – A Versatile Industrial Mineral, USGS Fact Sheet FS-002-01, February 2001.
[9] L. Daniel Maxim, Ron Niebo, Mark J. Utell, E. E. McConnell, Salvatore LaRosa and Alan M. Segrave, Wollastonite toxicity: an update, Inhal Toxicol, 2014; 26(2): 95–112.
[10] Gulay Bulut, Elif Suna Akcin, Murat Olgac Kangal, Value added industrial minerals production from calcite-rich wollastonite, Gospodarka Surowcami Mineralnymi – Mineral Resources Management, 2019, 35(1), 43–58.
[11] Bauer, R.R., Copeland, J.R., and Santini, K., (1994), Wollastonite, in Carr, D.D., Ed. Industrial Minerals and Rocks, 6th Edition: Littleton, Colo., Society for Mining, Metallurgy, and Exploration, Inc., p. 1119–1128.
[12] La wollastonite: une substance minerale recherchee (gouv.qc.ca) at URL https://gq.mines.gouv.qc.ca/documents/examine/MB8812/MB8812.pdf
conference
https://doi.org/10.5593/sgem2024/1.1/s04.56
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Proceedings of 24th International Multidisciplinary Scientific GeoConference SGEM 2024
24th International Multidisciplinary Scientific GeoConference SGEM 2024, 1 - 7 July, 2024
Proceedings Paper
STEF92 Technology
International Multidisciplinary Scientific GeoConference Surveying Geology and Mining Ecology Management, SGEM
SWS Scholarly Society; Acad Sci Czech Republ; Latvian Acad Sci; Polish Acad Sci; Russian Acad Sci; Serbian Acad Sci and Arts; Natl Acad Sci Ukraine; Natl Acad Sci Armenia; Sci Council Japan; European Acad Sci, Arts and Letters; Acad Fine Arts Zagreb Croatia; Croatian Acad Sci and Arts; Acad Sci Moldova; Montenegrin Acad Sci and Arts; Georgian Acad Sci; Acad Fine Arts and Design Bratislava; Russian Acad Arts; Turkish Acad Sci.
433-440
1 - 7 July, 2024
website
9883
wollastonite, froth flotation, grinding, magnetic separation.

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