Zobrazeno 1 - 10
of 18
pro vyhledávání: '"Armando Rojas Vargas"'
Autor:
Armando Rojas Vargas, Liudmila Pérez García, Crispin Sánchez Guillen, Forat Yasir AlJaberi, Ali Dawood Salman, Saja Mohsen Alardhi, Phuoc-Cuong Le
Publikováno v:
Heliyon, Vol 9, Iss 11, Pp e21345- (2023)
The lateritic ore drying in the Cuban nickel producing industry is realized within flighted rotary dryers. In this investigation, performance indicators in regards to transfer of momentum, heat and mass were evaluated. The dryers operate in a concurr
Externí odkaz:
https://doaj.org/article/8e457639188c46a8ad406a5345b3df10
Autor:
Armando Rojas Vargas, Margarita Penedo Medina, Alba González Vives, Noureddine Barka, Aymara Ricardo Riverón
Publikováno v:
Acta Chimica Slovenica, Vol 69, Iss 3, Pp 536-551 (2022)
This study reports nickel removing by electrocoagulation of Ni(II)-NH3-CO2-SO2-H2O system at laboratory scale. Experiments were done using Al/Al pair electrodes at initial nickel concentration between 293 and 1356 mg·L-1 and under operation paramete
Externí odkaz:
https://doaj.org/article/52ff7673a99742509c70d87d67386ab3
Autor:
Armando Rojas Vargas, Crispin Sánchez Guillen, María Elena Magaña Haynes, Forat Yasir AlJaberi
Publikováno v:
Results in Engineering, Vol 17, Iss , Pp 100961- (2023)
In the nickel and cobalt production plant located in Punta-Gorda Cuba, an effluent liquor is obtained with several pollutants species of Ni(II)–NH3–CO2–SO2–H2O system. In previous studies the performance of electrocoagulation (EC) for the nic
Externí odkaz:
https://doaj.org/article/fba723e2691b4d87a08494078e0942a6
Autor:
Armando Rojas Vargas, María Elena Magaña Haynes, Crispin Sánchez Guillen, Forat Yasir AlJaberi
Publikováno v:
Journal of Electrochemical Science and Engineering (2022)
The nickel removing by electrocoagulation of Ni(II)-NH3-CO2-SO2-H2O system was studied in a batch reactor of 50 L useful volume, with stirring, and two pairs of aluminum electrodes. The operating parameters were nickel concentration between 255 and 3
Externí odkaz:
https://doaj.org/article/17a360970a6542e5b6fa81e68e5e3307
Publikováno v:
Acta Chimica Slovenica, Vol 67, Iss 4, Pp 1239-1249 (2020)
The distillation process in the Ammoniacal Carbonate Leaching technology was studied at bench-scale and on industrial scale. The dissolved sulfur effect in the Product-liquor that feeds to the columns, on the Basic Nickel Carbonate (BNC) properties a
Externí odkaz:
https://doaj.org/article/493cad298f344ed1b1c9b2d8aca1c36c
Publikováno v:
Revista de Metalurgia, Vol 55, Iss 3, Pp e149-e149 (2019)
Se identificaron los factores que inciden en el incremento de la concentración del níquel disuelto en la suspensión de carbonato básico de níquel, de la tecnología de lixiviación de carbonato amoniacal. Se propuso un modelo estadístico para d
Externí odkaz:
https://doaj.org/article/241fe528f03e4b539cca1313fef24b58
Publikováno v:
Minería y Geología, Vol 29, Iss 1, Pp 1-16 (2013)
El propósito del artículo fue fundamentar experimentalmente la optimización del flujo de aire específico, para las condiciones de la prueba QT, a partir del contenido de Fe (II) en el mineral reducido, aportado por la medición de los potenciales
Externí odkaz:
https://doaj.org/article/1064fa1bcccc4173bdfabae128a0cf91
Publikováno v:
Tecnología Química, Vol 38, Iss 1, Pp 24-35 (2017)
In the present work, the filtration of nickel carbonate was studied experimentally to laboratory scale, to evaluate the effects of suspension pH, chemical composition and fineness of the salt over of specific cake resistance and the medium resistance
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doajarticles::6661ea5afc7df310f57672fae058ee63
http://revistas.uo.edu.cu/index.php/tq/article/view/3213
http://revistas.uo.edu.cu/index.php/tq/article/view/3213
Publikováno v:
Revista de Metalurgia; Vol. 55 No. 3 (2019); e149
Revista de Metalurgia; Vol. 55 Núm. 3 (2019); e149
Revista de Metalurgia
Consejo Superior de Investigaciones Científicas (CSIC)
Revista de Metalurgia, Vol 55, Iss 3, Pp e149-e149 (2019)
Revista de Metalurgia; Vol. 55 Núm. 3 (2019); e149
Revista de Metalurgia
Consejo Superior de Investigaciones Científicas (CSIC)
Revista de Metalurgia, Vol 55, Iss 3, Pp e149-e149 (2019)
The factors that incise in the increment of the nickel dissolved concentration, in the basic nickel carbonate suspension, of the ammoniacal carbonate leaching technology were identified. A statistical model was proposed to estimate the nickel in func
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::2ef5992b79769f6fdf3cfc5263a68346
https://revistademetalurgia.revistas.csic.es/index.php/revistademetalurgia/article/view/1468
https://revistademetalurgia.revistas.csic.es/index.php/revistademetalurgia/article/view/1468
Autor:
Yarilys Gaínza-Delgado, María Elena Magaña-Haynes, Armando Rojas-Vargas, Crispin Sánchez-Guillén
Publikováno v:
Tecnología Química, Vol 36, Iss 3, Pp 407-416 (2016)
This work presents the results obtained in carrying out the mass and energy balances in the calcining kiln of the company commander Ernesto Che Guevara, for determining the consumption index of petroleum used for obtaining nickel oxide through therma
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doajarticles::3ed35157d39b7ab51aca9f5e0d56cfc3
http://revistas.uo.edu.cu/index.php/tq/article/view/1453
http://revistas.uo.edu.cu/index.php/tq/article/view/1453