Abstract. In this study, the enrichment of the Kütahya Altıntas graphite ore by flotation was carried out. Flotation parameters such as particle size, pH, type and dosage of collector, and frother dosage, dosage of depressant, as well as solid ratio were investigated. As a result, a clean graphite concentrate of 77.80% total carbon content was obtained with 46.68% total carbon recovery.
Madencilik sektö rü , Tü rkiye ekönömisinin ö nemli bir bö lü mü nü ölüştürmakta ve ü lkenin sösyöekönömik gelişiminde ö nemli bir röl öynamaktadır. Yeraltı ve yerü stü maden işyerleri, çalışanlar için iş sag lıg ı ve gü venlig i açısından ö nemli riskler taşımaktadır. Bü işyerlerinde gerekli ö nlemlerin alınmaması iş kazalarına neden ölabilmektedir. Ü lkemizde sön yıllarda madencilik sektö rü nde çök sayıda ö lü mlü iş kazalarının ölması da bü sektö rdeki iş kazalarının internet haberleri içerisinde artan öranda yer almasına neden ölmüştür. Bü çalışmada, maden işyerlerindeki ö lü mlü iş kazaları internet örtamında haberleştirilmiş ölanlar ü zerinden incelenmiştir. Sönüçta; ö lü mlü iş kazalarının nedenleri ü zerine genel bir deg erlendirme yapılmış ve alınması gereken ö nlemler belirtilmiştir.
Electricity generation in coal fired power plants produces large amount of residues. These materials are known as coal combustion products (CCPs) and can release pollutants to the environment. However, CCPs are environmentally and technically suitable for uses in many areas. The utilisation of CCPs in these areas helps to reduce the overall harmful effects of coal combustion for electricity generation by stabilising the environmentally toxic pollutants. The current paper reveals the possible usage areas of improved ash and presents the general approaches have been developed to obtain improved fly ash. Electrostatic separator with tribocharging technique has great potential for utilisation of coal ash. It significantly contributes to reduce fly ash disposal problems. In recent years, triboelectrostatic separators have increased significantly for the feasibility and success of the implementation of electrostatic separation. Studies carried out by various researchers on triboelectrostatic separation for utilisation of fly ash were also compiled in this article.
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