A survey of oil agglomeration in wet fine coal processing

Taguchi Deneysel Tasarım Metodu Kullanılarak Karadon (Zonguldak) Kömürünün Yağ Aglomerasyonu Davranışının İncelenmesi

“…İnce boyutlu kömür tanelerinin kazanımında, tane boyutuna bağlı olarak farklı yöntemler kullanılmaktadır [1−5]. Bu yöntemler arasında sayılan yağ aglomerasyonu, çok ince kömür tanelerine (5 µm) [6] rahatlıkla uygulanılabilmesinin yanı sıra, tane boyutunun büyütülmesi nedeniyle kazanımın kolay olması ve kömürün kalorifik değerinin de artması bakımından [2] ön plana çıkmaktadır. Yağ aglomerasyonu işleminde, hidrofobik özellikteki kömür tanelerinin yağ ile bir araya getirilmesi, dolayısıyla tane boyutlarının büyütülmesi ve sonrasında eleme ile inorganik kısımdan ayrılması söz konusudur [7].…”

Investigation of spherical oil agglomeration properties of celestite

“…Size enlargement processes to upgrade fine particles are assuming ever-increasing importance today because of their relevance to waste treatment, environmental protection, and the efficient recovery and beneficiation of ores and coals [1,2]. From these methods, oil agglomeration, which advantages due to the simplicity of the process and mineral beneficiation with high recovery, gains importance [1,2,8].…”

“…In mineral processing, fine and ultrafine particles are inevitable because of mechanized mining methods, comminution processes, and greater size reduction needed to liberate the minerals [1][2][3][4][5]. These particles cause numerous problems in both concentration stages and other handling stages such as dewatering, transporting, and dust control.…”

“…In this process, hydrophobic particles in water are agglomerated by the action of the bridging liquid, which is immiscible with the suspending liquid and must preferentially wet the hydrophobic particles. The agglomerated product can be separated from the suspension by floating, skimming, and screening [1,2,[8][9][10]. Apart from hydrophobic particle agglomeration, oil agglomeration of salt-type minerals has two more stages, namely hydrophobic coagulation and agglomeration of flocs [9].…”

Micro-agglomerate flotation for deep cleaning of coal. Final report

“…A reduction in the oil consumption from about 30% (oi1:coal) in the Trent process was achieved in the Convertol process which used only -3 to 10% oil (Lemke, 1954;Brisse and McMoms, 1958). Further developments in oil agglomeration occurred in the early 1960's at the NationaI Research Council of Canada where the emphasis was on the use of a combination of agitator cells for the production of compact, spherical pellets (Capes and Darcovich, 1984 …”