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A comparative study on interactions of ionic collectors with orthoclase

Ozun S., Atalay M. U.

Physicochemical Problems of Mineral Processing

2016

Vol. 52, iss. 2

955--972

Flotation and adsorption characteristics of the most commonly used cationic and anionic collectors with high grade orthoclase were investigated through the electrokinetic potential measurement, microflotation, Fourier transform infrared spectroscopy (FTIR) and atomic force microscopy (AFM) studies. According to the obtained results, orthoclase had high flotation recovery with amine and oleic acid based (OAB) collector at certain pH ranges no flotation response was observed with petroleum sulfonate at different pHs. In contrast to the flotation recovery differences, the electrokinetic potential measurements, FTIR and AFM analyses presented similar adsorption characteristics for all collectors. The results of electrokinetic potential tests showed that amine had a strong influence on the zeta potential of orthoclase. While amine turned the zeta potentials of orthoclase from negative to positive, sulfonate and OAB collector provided slightly more negative zeta potentials at certain pHs. In the case of FTIR and AFM analyses, each collector-treated orthoclase (CTO) sample displayed similar characteristic FTIR bands of CH2 group and micro topographical collector coated patches with different intensities. However, the interactions of each collector with orthoclase surfaces were altered by rinsing with acetone indicating that the interactions were mostly through the electrostatic forces and/or hydrogen bonding.

Investigation on possibility of opaque minerals removal from foid bearing rock

Ozun S., Atalay U., Kadioglu Y. K.

Górnictwo i Geoinżynieria

2009

R. 33, z. 4

269-276

Foid bearing rocks are one of the most major felsic intrusive rocks of Central Anatolian Crystalline complex (CACC) which are observed at the inner part of central Anatolia, Kirsehir, Turkey. Foid bearing rocks are mainly constituted from three different subunits: nepheline syenite, nepheline diorite and nepheline gabro. Nepheline syenite is represented the abundant lithological composition of alkaline magmatic rocks in the region. In this study the removal of mica, (ilmenite) iron-titanium oxide and magnetite minerals in Nepheline Syenite rocks from Central Anatolian Crystalline Complex, Turkey is investigated by flotation at alkali condition following to this high intensity wet magnetic seperation (HIWMS) was applied. The best results were obtained from - 106 + 38 microns particle sizes nepheline syenite feed. A concentrate with 7.84% K2O, 11.22% Na2O, 0.22% Fe2O3 and 0.01% TiO2 content was produced with of 62.5% recovery by weight.

Skały plutonowe są jednymi z najbardziej intruzyjnymi skałami w Centralnym Kompleksie Krystalicznym Anatolii (CACC), które są obserwowane w wewnętrznej części centralnej Anatolii, Kirsehir, Turcja. Są one złożone głównie z trzech głównych podjednostek: sjenitu nefelinu, diorytu nefelinu oraz gabra nefelinu. Sjenit nefelinu jest reprezentowany licznie przez związki litologiczne zasadowych skał magmowych w regionie. W pracy, zbadano procent usunięcia miki, tlenku żelazowo-tytanowego (ilmenitu) oraz minerałów magnetycznych w skałach sjenitu nefelinu z regionu CACC, za pomocą flotacji przeprowadzanej w środowisku zasadowym oraz intensywnej separacji magnetycznej na mokro (HIWMS). Najlepsze wyniki otrzymano dla nadawy sjenitu nefelinu o uziarnieniu od - 106 + 38 mikronów. Koncentrat o zawartości 7,84% K2O, 11,22% Na2O, 0,22% Fe2O3 oraz 0,01% TiO2 został wyprodukowany przy 62,5% uzysku wagowego.