Results 1 to 10 of about 381 (148)
Consumo de cianuro de concentrado de pirita aurifera, empleando ozono como pretratamiento
Epistemus, 2022 La pirita (FeS2) es el segundo mineral huésped más común de las especies de oro. Esta asociación presenta una complejidad diversa, ya que el oro puede encontrarse finamente diseminado ó incluido a tamaño muy fino (0.1 a 1.0 µm), por lo que requieren ...
Carolina de Jesús Rodriguez-Rodriguez +4 more
doaj +2 more sources
Revista de la Academia Colombiana de Ciencias Exactas, Físicas y Naturales, 2023 En este trabajo, fueron oxidadas secciones pulidas de muestras relativamente puras de pirita y calcopirita, tomadas de las minas de oro San Antonio (Marmato, Caldas) y La Chorrera (Cisneros, Antioquia).
Marco Antonio Márquez Godoy +3 more
doaj +1 more source
Adsorção de xantatos sobre pirita [PDF]
Química Nova, 2001 This paper presents a study of adsorption of xanthate with alkyl chain of two (C2XK), four (C4XK) and eight (C8XK) atoms of carbon, on pyrite from Santa Catarina, Brazil. The results showed that pyrite surface changes from hydrophilic to hydrophobic when xanthate is adsorbed increasing the contact angle to 35o for C2XK, and to 90o for C4XK and C8XK ...
Penha, Fábio Garcia +2 more
openaire +3 more sources
Organising a Digital Storytelling workshop in a HEI setting
Il Capitale Culturale: Studies on the Value of Cultural Heritage, 2023 Organising a Digital Storytelling (DST) workshop in a heigher education institution (HEI) setting does not require specialised digital media labs or professional video editing software, but it does need careful planning and experienced workshop ...
Pirita Juppi
doaj +1 more source
OTEPÄÄ PIISKOPILINNUSE HÄVIMISDAATUMIST KIRJALIKE JA ARHEOLOOGILISTE ALLIKATE VALGUSES; pp. 72–78 [PDF]
Eesti Arheoloogiaajakiri, 2010 On antud ülevaade keskaegse Otepää linnuse hävimisdaatumi kohta püstitatud hüpoÂteeÂsidest ja vaadeldud kriitiliselt Otepää piiskopilinnuse uurijate esitatud teooriaid kirjalike allikate ning arheoloogiliste leidude valguses.
Jaak Mäll
doaj +1 more source
Mida kõnelevad arheoloogilised leiud Pirita kloostri raamatukultuurist?
Vana Tallinn, 2023 Archaeological finds related to book culture from medieval and early modern periods are not numerous in Estonia. This is perhaps also the reason why this material has received only little attention from the researchers. The main aim of this paper is to explore the potential of applying the archaeological approach to book fittings found in Estonia. This
Kurisoo, Tuuli, Kolk, Kaspar
openaire +1 more source
Boletín de Ciencias de la Tierra, 2022 Se realizó una caracterización geomecánica de un túnel guía para la explotación de oro en la mina Yaraguá (Continental Gold Limited) en el Municipio de Buriticá (Antioquia).
Jheyson S. Acosta-Luna +3 more
doaj +1 more source
Digital Storytelling as a narrative approach to identity and career construction
Il Capitale Culturale: Studies on the Value of Cultural Heritage, 2023 Digital Storytelling (DST) is a participatory, narrative, and art-based practice that has been applied for various purposes and in various institutional contexts. In higher education institutions, it has many uses.
Pirita Juppi
doaj +1 more source
Cinética da flotação de pirita I
Ecletica Quimica, 1988 .
Newton Luiz Dias Filho +2 more
openaire +2 more sources
Ciência Rural, 2010 A mineração de carvão a céu aberto envolve a remoção superficial do solo e de camadas geológicas, os quais devem ser repostos visando à reabilitação das áreas mineradas.
Alberto Vasconcellos Inda +5 more
doaj +1 more source