Grenades of Ukraine as perspective abrasive raw material

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Authors:

Ye.N. Mostyka, Cand. Sci. (Tech.), Associate Professor, State Higher Educational Institution “National Mining University”, Senior Lecturer of the Department of Geology and Exploration of Mineral Deposits, Dnipropetrovsk, Ukraine

Abstract:

Purpose. To carry out the comparative analysis of abrasive properties of garnets produced in Ukraine at Ivanovskoye and Zavalyevskoe deposits and in the USA at Barton’s deposit on the basis of description of geological structure of the deposits and composition, and technological properties of the extracted garnet.

Methodology. Chemical composition of the garnets and their microhardness were determined in the Central Laboratory of KP “Yuzhukrgeologiya” in Dnepropetrovsk. Minal composition of the garnet was calculated using standard formulas of minerals and their indices of reflection. The abrasive properties were tested on the “3IM” grinding-and-polishing machine produced at OOO “Zaporozhabrasive”. The testing method was developed for study of abrasive properties of electro-corundum with the granularity of M28 (GOST 3647-80) and polirit with the granularity of F240. Granularity М28 of garnet extracted from Ivanovskoye and Zavalyevskoe deposits is identical to granularity W2 of garnet from Barton Mines by its granular structure. Polishing qualities of garnet were tested in the range of granularity of M28 and F240 on grade of glass C 95-3.

Test results confirmed similarity of grinding and polishing properties of garnet from Ivanovskoye, Zavalyevskoe deposits and garnet produced by Barton International.

Comparing composition and structure of the deposits it is possible to draw a conclusion that the garnets are similar by composition. Pyrope-almandine and almandine-pyrope garnets with the highest abrasive properties appear among the rocks of both basic and acid composition. The conducted work showed that as for screens treatment the garnets extracted from Ivanovskoye and Zavalyevskoe deposits are equal by abrasive properties to the garnets produced in the USA, but comparing to electro-corundum they are 1.5–2 times less effective. It is possible to use garnet instead of polirit with 1.5–2 times increase of expenses of garnet.

The results of our researches confirmed good prospects of Ukrainian garnet as an abrasive raw material and its competitiveness at the world market.

References:

1. Andersen, D.E. and Olimpio J.C. (2007), “Progressive homogenization of metamorphic garnets. South Morar, Scotland: evidence for volume diffusion”, Canad. Miner, vol.15, no.9, pp. 205–216.

2. Неметалічні корисні копалини, Том ІІ / [Д.С. Гурський, К.Ю. Єсипчук, В.І. Калінін та ін.] / К. – Львів: Центр Європи, 2006, С. 106–111.

Gurskiy, D.S., Esipchuk, K.Yu. and Kalinin, V.I. (2006), Nemetalichni korysni kopalyny [Non-metal Minerals], Tom II, Tsentr Yevropy, Kyiv-Lviv, Ukraine pp. 106–111.

3. Кореляційна хроностратиграфічна схема раннього докембрію Українського щита (схема та пояснювальна записка) / Єсипчук К.Ю., Бобров О.Б., Степа-нюк Л.М., Щербак Н.П.– К.: УкрДГРІ, 2004.

Yesypchuk, K.Yu., Bobrov, O.B., Stepaniuk, L.M. and Scherbak, N.P. (2004), Korreliatsiina khronostratyhrafichna schema rannoho dokembriiu Ukrainskoho shchyta [Chronological and Stratigraphic Scheme Early Precambrian Ukrainian Shield (scheme and explanatory note)], UkrDGRI, Kyiv, Ukraine

4. Мостыка Е.Н. Условия образования гранатсодержащих пород Орехово-Павлоградской полосы / Мостыка Е.Н. // Геолого-мінералогічний вісник, КТУ–Кривой Рог: 2005.– №1(13).– С. 80–84.

Mostyka, Ye.N. (2005), “Grenades-containing rocks of the Orekhovo-Pavlograd stripe formation conditions”, Heoloho-mineralohichnyi visnyk, no.1(13), pp. 80–84.

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ISSN (print) 2071-2227,
ISSN (online) 2223-2362.
Journal was registered by Ministry of Justice of Ukraine.
Registration number КВ No.17742-6592PR dated April 27, 2011.

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