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It is estimated that useful life of world’s well known petroleum reserves will last 40 years, natural gas will last 61 years and coal reserves will be exhausted in 227 years. Decrease in fossile fuel reserves due to fast consuming and environmental damages due to increasing environmental pollution makes it necessary to orient towards new and renewable energy resources. Natural thorium comprising blend of completely radioactive isotopes was first discovered by Berzelius in 1828 and its radioactivity was revealed by...

A summary of abundance, quality and usage areas of the known bentonite occurrences in Turkey has been explained for this study. Bentonite that is one of the most important and abundant clays of Turkey has lower cost in comparison to other raw materials. Turkey has significant resources of bentonite that have been reported approximately 370 million tons base reserve. Also Turkey is one of the leading producers with 950 000 tons per year. Lower cost of bentonite in comparison to other raw materials for various usage...

In this study, dissolution kinetics of iron leaching by sulphuric acid under atmospheric pressure from Karacam (Eskisehir-Turkey) lateritic ore was studied. The effects on the iron reaching rate of stirring speed, sulphuric acid concentration, temperature, particle size, and solid/liquid ratio were investigated. In order to investigate the effects of leaching temperature range of 40–90 °C the shrinking core model was applied by using the results of experiments. Kinetics analysis showed that the iron dissolution fr...