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Mostrando ítems 1-10 de 12
Artículo
Immobilization of heavy metals (Cd, Ni or Pb) using aluminate geopolymers
(Elsevier, 2018-09)
In the present study, a waste aluminate solution from the anodizing industry was used to synthesize coal fly ash- and blast furnace slag-based geopolymers as metal-immobilizing matrixes. Different alkali-activating agents ...
Artículo
Demonstration Plant Equipment Design and Scale-Up from Pilot Plant of a Leaching and Solvent Extraction Process
(MDPI, 2015-05-28)
Germanium recovery from coal fly ash by hydrometallurgical procedures was studied at the pilot scale (5 kg of fly ash/h). Results were used to design the equipment of a demonstration-sized plant (200 kg of fly ash/h). ...
Artículo
Environmental risks and mechanical evaluation of recycling red mud in bricks
(Elsevier, 2020-07)
More and more by-products are being used in certain materials, especially in the construction industry. Natural construction materials contain amounts of heavy metals and radionuclides, but when by-products are used in ...
Artículo
Coal Combustion and Gasification Products
(University Kentucky, 2010)
The valorization of a coal gasification fly ash was studied by leaching the fly ash using different aqueous solutions followed by the subsequent precipitation of the germanium solubilized from the ash. Experimental ...
Artículo
Application of biomass gasification fly ash for brick manufacturing
(Elsevier, 2011)
Biomass gasification technology offers an attractive way to use low-grade fuels in energy production with high efficiency and low environmental impact. However, an issue calling for further development is the volume and ...
Artículo
Low environmental impact process for germanium recovery from an industrial residue
(Elsevier, 2018-11)
This paper focused on the germanium recovery from an Integrated Gasification with Combined Cycle fly ash (IGCC FA). The global process comprised the leaching of the IGCC fly ash with an aqueous solution containing tartaric ...
Artículo
Development of fly ash-based geopolymers using powder sodium silicate activator
(Elsevier, 2022-08)
Geopolymer manufacturing by means a ready-mix procedure using powder sodium silicate as activator is described in this paper. Its characteristics are compared with conventional geopolymers using aqueous sodium silicate. ...
Patente
Procedimiento para la recuperación de germanio en disolución mediante complejación y utilización de resinas de intercambio iónico
(Oficina Española de Patentes y Marcas , 2009-08-31)
Procedimiento para la recuperación de germanio en disolución mediante complejación y utilización de resinas de intercambio iónico.La presente invención describe un procedimiento para la recuperación de germanio en disolución ...
Tesis Doctoral
Patente. Invención
Procedimiento para la recuperación del germanio presente en cenizas de carbón
(Oficina Española de Patentes y Marcas (OEPM), 2008-11-12)
Procedimiento para la recuperación del germanio presen te en cenizas de carbón. El objeto de la presente invención se refiere a un procedi miento hidrometalúrgico para la recuperación del germa nio presente en cenizas de ...