Now showing items 1-9 of 9

  • An improved high-pressure roll crusher model for tungsten and tantalum ores 

    Anticoi Sudzuki, Hernán Francisco; Guasch Cacalló, Eduard; Hamid, Sarbast; Oliva Moncunill, Josep; Alfonso Abella, María Pura; Bascompta Massanes, Marc; Sanmiquel Pera, Lluís; Escobet Canal, Teresa; Escobet Canal, Antoni; Parcerisa Duocastella, David; Peña Pitarch, Esteve; Argelaguet Isanta, María Rosa; Felipe Blanch, José Juan de (2018-10-25)
    Article
    Open Access
    An improved approach is presented to model the product particle size distribution resulting from grinding in high-pressure roll crusher with the aim to be used in standard high-pressure grinding rolls (HPGR). This approach ...
  • Caracterització mineralògica dels materials dels dipòsits de tungstè de Mittersill i Morille per el seu processament 

    Call Espinalt, Joan (Universitat Politècnica de Catalunya, 2016-01)
    Master thesis
    Restricted access - author's decision
    La mineralogia dels dipòsits de tungstè de Mittersill (Àustria) i Morille (Espanya) han estat caracteritzats. L’objectiu d’aquest treball és caracteritzar dipòsits de tungstè per que es pugui desenvolupar una metodologia ...
  • Identificació de la wolframita a partir de pixels mitjançant Machine Learning 

    Abril Soler, Toni (Universitat Politècnica de Catalunya, 2017-07)
    Bachelor thesis
    Restricted access - author's decision
    Cada vegada més, es persegueix aconseguir millores d’eficiència i l’abaratiment de qualsevol tasca a realitzar dins d’una empresa, amb l’objectiu de ser més competitiu al mercat i sobretot, anar per davant a la teva ...
  • Mineria del tàntal i del tungstè. Present i perspectives de futur 

    Sánchez Cornet, Ricard (Universitat Politècnica de Catalunya, 2016-03)
    Bachelor thesis
    Restricted access - author's decision
  • Nonlinear effects of electrode and bragg reflector materials in BAW resonators 

    García Pastor, David; González Rodríguez, Marta; Hueltes Escobar, Alberto; Collado Gómez, Juan Carlos; Mateu Mateu, Jordi; González Arbesú, José María; Kreuzer, Susanne; Aigner, Robert (Institute of Electrical and Electronics Engineers (IEEE), 2017)
    Conference lecture
    Restricted access - publisher's policy
    This work presents a broadband characterization and modeling of the second harmonic nonlinear response in Bulk acoustic wave (BAW) resonators. The proposed circuit model is based on the constitutive equations describing ...
  • Optimisation of tungsten ore processing through a deep mineralogical characterisation and the study of the crushing process 

    Bascompte Vaquero, Jordi (Universitat Politècnica de Catalunya, 2017-07)
    Bachelor thesis
    Open Access
    Covenantee:  Chalmers tekniska högskola
    The unstoppable increasing global demand for metals calls for an urgent development of more efficient extraction and processing methods in the mining industry. Comminution is responsible for nearly half of the energy ...
  • Potential of tungsten tailings as glass raw materials 

    Alfonso Abella, María Pura; Tomasa Guix, Oriol; García-Vallès, Maite; Tarragó Aymerich, Mariona; Martínez Manent, Salvador (2018-10-01)
    Article
    Restricted access - publisher's policy
    Glasses from different types of tungsten mine tailings were obtained and studied to determine their ability to be used as raw materials of commercial glass. Tailings of granitic composition from Barruecopardo, of calc-silicate ...
  • Recycling of tailings from the Barruecopardo tungsten deposit for the production of glass 

    Alfonso Abella, María Pura; Castro López, David; García-Vallès, Maite; Tarragó Aymerich, Mariona; Tomasa Guix, Oriol; Martínez Manent, Salvador (Springer, 2016-02-26)
    Article
    Open Access
  • The development of flotation and its laboratory testing based on scheelite mineral sample 

    Chugunova, Marina (Universitat Politècnica de Catalunya, 2016-07)
    Master thesis
    Restricted access - author's decision
    Development of flotation plant comprises the accomplishment of various tasks. Such tasks account for the plant equipment selection based on different calculations of equipment parameters and flotation flowsheet. In order ...