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Kurnia Trinopiawan,Zaki Mubarok,Kurnia Setiawan Widana,Budi Yuli Ani,Yarianto Sugeng Budi Susilo,Riesna Prassanti,Iwan Susanto,Sulaksana Permana,Johny Wahyuadi Soedarsono
Pág. 24 - 30
Bangka Tin Slag (BTS) was a tin-smelting waste containing high silica and other elements that have high economic value, including cerium, which is a rare earth element. Silica and Ce2O3 contents in BTS were 32.86 % and 1.35 % respectively. Othe...
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Thiago J. T. Cruz, Mariele I. S. Melo and Sibele Pergher
The synthesis of zeolites using waste as a source of Si and Al is well known, and light coal ash has been studied to minimize the problems of waste management and mitigate environmental effects. The residue used in this work was supplied by Coal Workers ...
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Rolf Kilian,Ernst Hegner,Steven Fortier,Muharrem Satir
Pág. 203 - 218
ABSTRACT. Miocene to Holocene volcanic rocks of Chimborazo and associated volcanoes in the Western Cordillera of Ecuador range in composition from basaltic andesite to rhyolite. They were erupted through Cretaceous accretionary mafic basement. Three calk...
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