Browsing by Author "Ríos Reyes, Carlos Alberto"
A comparative study on conversion of industrial coal by-products in low sio2 zeolite of faujasite type
Ríos Reyes, Carlos Alberto; Oviedo Villamizar, Jenny Andrea; Henao Martínez, José AntonioColombian industrial coal by-products were evaluated as raw materials in the synthesis at laboratory scale of low SiO2 zeolite of faujasite type using an alkaline fusion step followed by the hydrothermal treatment under ...Universidad Nacional de Colombia Revistas electrónicas UN Dyna.
A new interpretation for the garnet zoning in metapelitic rocks of the silgará formation, southwestern santander massif, colombia
Ríos Reyes, Carlos Alberto; Castellanos Alarcón, Oscar Mauricio; Takasu, AkiraA Barrovian sequence of the Silgará Formation at the southwestern Santander Massif, Colombian Andes, contains zoned garnets in which major and trace element zoning correlates with distribution of mineral inclusions, which ...Universidad Nacional de Colombia Revistas electrónicas UN Earth Sciences Research Journal.
An integrated remediation system using synthetic and natural zeolites for treatment of wastewater and contaminated sediments
Ríos Reyes, Carlos Alberto; Appasamy, Danen; Roberts, CliveThe major sources of water pollution can be classified as municipal, industrial, and agricultural. Different types of polluted aqueous effluents and sediments may be produced, which contain relatively high levels of heavy ...Universidad Nacional de Colombia Revistas electrónicas UN Dyna.
Ríos Reyes, Carlos Alberto; Denver Williams, CraigA kaoliniterich raw material was treated hydrothermally with 1.33 and 3.99M KOH solutions at 100 and 175 °C during different reaction times ranging from 24 to 528 h. The synthesis products were characterized by Xray ...Universidad Nacional de Colombia Revistas electrónicas UN Dyna.
Synthesis and characterisation of sod-, can-and jbw-type structures by hydrothermal reaction of kaolinite at 200oc
Ríos Reyes, Carlos Alberto; Denver Williams, Craig; Roberts, CliveLow-silica zeolitic materials like SOD, CAN and JBW crystallized after hydrothermal transformation of kaolinite in the system Na₂O–Al₂O₃–SiO₂–H₂O at 200oC, with or without the addition of a structure-directing agent. The ...Universidad Nacional de Colombia Revistas electrónicas UN Dyna.