Investigation of kinetics of agglomerate growth in oil agglomeration process☆

Recovering molybdenite from ultrafine waste tailings by oil agglomerate flotation

“…As the agglomeration time increased, larger agglomerates were obtained due to an increase of particle-particle, particle-microagglomerate, and microagglomerate-microagglomerate contact (Cebeci, 2003). With the increase of agglomerates size, more and more ultrafine molybdenites are collected to form large agglomerates.…”

“…Therefore, column flotation, carrier flotation, selective flocculation and oil agglomeration methods have been developed to recover fine particles (Subrahmanyam and Forssberg, 1990;Cebeci, 2003;Sadowski and Polowczyk, 2004). In these methods, oil agglomeration has some advantages, i.e.…”

“…The basic principles of oil agglomeration and effects of various operating parameters have been investigated by many researchers, and the technique has been used in the mineral industry for the purification of coal from sulphur and ashes (Mehrotra et al, 1983;Laskowski and Yu, 2000;Gray et al, 2001;Aktas, 2002;Alonso et al, 2002;Cebeci andSönmez, 2002, 2006;Sahinoglu and Uslu, 2008), recovery of fine sized gold from ores (Moses and Petersen, 2000;Sen et al, 2005;Valderrama and Rubio, 2008), agglomeration of oxide such as barite Cebeci, 2003a, 2004), calcite (Sönmez and Cebeci, 2003b;Cebeci and Sönmez, 2004a) and celestite (Cebeci and Sönmez, 2004b) for the separation process, improving the quality of waste-derived char (Hwang et al, 2008), removal of impurities from wastewater (Huang and Fang, 2001;Kang and Shin, 2006) and de-inking of paper (Azevedo and Miller, 2000).…”

Progress of Fossil Fuel Science

“…Turkish researchers investigated the miscellaneous properties of Turkish coal, lignite, coke and semicoke, crude oil, natural gas, and bituminous coal (Simsek et al, 2001;Karacan and Okudan, 2001;Karaca et al, 2001;Ercin et al, 2001;Unal and Aktas, 2001;Yazici and Demirbas, 2001;Atesok et al, 2002;Cebeci and Sonmez, 2002;Simsek et al, 2002;Kok, 2002b;Kadioglu and Varamaz, 2003;Cebeci, 2003;Onal and Akol, 2003;Atimtay and Topal, 2004;Ozturk and Hepbasli, 2004a;Ozturk and Hepbasli, 2004b;Boylu et al, 2005). The floatability improvement of Yozgat Ayridam lignite using various collectors was also investigated (Cebeci, 2002), as was the co-firing of coal and biomass blends (Surmen and Demirbas, 2003;Demirbas, 2003a;Demirbas, 2003b).…”

Role of recovery sieve size in upgrading of fine coal via oil agglomeration technique

“…First group includes kinetic studies undertaken for determining the kinetics of agglomerate growth [8][9][10][11]. Kinetic studies generally revealed that kinetics of the agglomerate can be defined by second order rate expression and evaluation of d 50 is important in determination of size distribution of agglomerates.…”