Washability and Thermal Properties of Oltutaşı Wastes

Date

2019-11-02

Author

Bawani, Muhammad Raheel
Arol, Ali İhsan
Tozsin, Gülşen
Akbulak, Bora
Torun, Abdülvahit

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Oltutaşı (Jet Stone), also known as black amber, is a fossilized, organic and natural material formed as a result of the transformation of certain trees under high pressure. It is called Oltutaşı because its occurrences are mostly located in the Oltu district of Erzurum. Generally, it is mined by small miners from nearby villages using rather primitive methods. After a rough sorting at the mine site, Oltutaşı is mostly used in the manufacturing of worry beads (tespih) and to a lesser extent, certain ornamental goods. The results of the research have shown that only 5-10 percent of Oltutaşı mined is converted to sellable end products. The rest is either burnt or disposed of, causing economic losses. In order to reduce the waste and produce higher economical values from this stone, the wastes of Oltutaşı should be converted to products. It is a well-known fact that this type of wastes, especially of amber, has been converted to sellable products by agglomeration under heat and pressure. In order to be able to also convert Oltutaşı wastes to valuable products by this method (agglomeration), it must be washed (cleaned) first and characterized to determine if the waste material is a suitable for agglomeration. In this paper, the results of the washability and thermal properties of the Oltutaşı are given.

Subject Keywords

Oltutaşı, Amber, Dense medium separation, Cumulative ash, Thermogravimetric

URI

https://hdl.handle.net/11511/79864

Conference Name

IMPC Eurasia Conference

Collections

Department of Mining Engineering, Conference / Seminar

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Citation Formats

M. R. Bawani, A. İ. Arol, G. Tozsin, B. Akbulak, and A. Torun, “Washability and Thermal Properties of Oltutaşı Wastes,” presented at the IMPC Eurasia Conference, Antalya, TURKEY, 2019, Accessed: 00, 2021. [Online]. Available: https://hdl.handle.net/11511/79864.