Zobrazeno 1 - 10
of 21
pro vyhledávání: '"Alejandro López-Valdivieso"'
Autor:
Yi Fang, Ke Yang, Yipeng Zhang, Changsheng Peng, Aurora Robledo-Cabrera, Alejandro López-Valdivieso
Publikováno v:
Water Science and Technology, Vol 84, Iss 9, Pp 2304-2317 (2021)
Activated carbon has been widely used to remove hazardous Cr(VI); however, the impact of Cr2O3 precipitate on gradually declining removal ability as pH increases has received little attention. Herein, to investigate the effect of Cr2O3, SEM-EDX (scan
Externí odkaz:
https://doaj.org/article/7f533ca915324cbc83cb9226b1a5d0a9
Autor:
Catalina Soto, Norman Toro, Sandra Gallegos, Edelmira Gálvez, Aurora Robledo-Cabrera, Ricardo I. Jeldres, Matías Jeldres, Pedro Robles, Alejandro López-Valdivieso
Publikováno v:
Materials, Vol 15, Iss 3, p 1136 (2022)
Current challenges in froth flotation are the presence of complex gangues and the use of low-quality waters, such as seawater. In this scenario, the recovery of molybdenum minerals is difficult, mainly due to the hydrophobic faces’ physicochemical
Externí odkaz:
https://doaj.org/article/8923c1a0019f48da8bb93118b128ebc8
Autor:
César I. Castellón, Eder C. Piceros, Norman Toro, Pedro Robles, Alejandro López-Valdivieso, Ricardo I. Jeldres
Publikováno v:
Metals, Vol 10, Iss 2, p 239 (2020)
The application of guar gum for pyrite depression in seawater flotation was assessed through microflotation tests, Focused Beam Reflectance Measurements (FBRM), and Particle Vision Measurements (PVM). Potassium amyl xanthate (PAX) and methyl isobutyl
Externí odkaz:
https://doaj.org/article/85f8dbf4cacd46d9abc001e461ed1579
Publikováno v:
TecnoLógicas, Vol 18, Iss 35, Pp 71-81 (2015)
In this research three methodologies to convert the hydrophilic surface of kaolinite into a hydrophobic surface are proposed, this condition is required to recover this mineral by means of froth flotation. Taking into account the anisotropy, zeta pot
Externí odkaz:
https://doaj.org/article/3b0826bb52c843489666f7aed71d870b
Publikováno v:
Minerals, Vol 9, Iss 5, p 301 (2019)
Malachite fines are easily produced in the grinding process, leading to low malachite flotation recovery. Floc-flotation of malachite fines with an octyl hydroxamate and kerosene mixture was studied to improve the flotation recovery, using microflota
Externí odkaz:
https://doaj.org/article/eba5a3964dc04c5192cf883fdc979b87
Autor:
Zhang, Guowei, Hou, Lei, Chen, Peng, Zhang, Qi, Chen, Yu, Zainiddinovich, Nasriddinov Zamoniddin, Wu, Chunhui, Alejandro, López Valdivieso, Jia, Feifei
Publikováno v:
In Minerals Engineering April 2024 209
Publikováno v:
Surfaces and Interfaces. 33:102199
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::774a0a9350576f7afb48d44bcbb965b3
https://doi.org/10.1016/j.surfin.2022.102199
https://doi.org/10.1016/j.surfin.2022.102199
Autor:
Yesica L. Botero, Andrés Canales-Mahuzier, Rodrigo Serna-Guerrero, Alejandro López-Valdivieso, Mostafa Benzaazoua, Luis A. Cisternas
Publikováno v:
SSRN Electronic Journal.
Publisher Copyright: © 2022 Elsevier B.V. The adsorption mechanisms of the collectors O-isopropyl-N-ethyl thionocarbamate (IPETC) and potassium amyl xanthate (PAX) on a covellite surface were studied through microflotation tests, Fourier-transform i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e7edc13b33be0ba3d5464b267fd10def
https://doi.org/10.2139/ssrn.3976789
https://doi.org/10.2139/ssrn.3976789
Autor:
Jinbo Zhu, Shaoxian Song, Shao Shanmin, Fanfei Min, Hongzheng Zhu, Alejandro López Valdivieso, Huang Dianqiang
Publikováno v:
Powder Technology. 338:586-590
Bubble aspect ratios and rising velocities of dodecylamine (DDA), methyl isobutyl carbinol (MIBC), sec-octyl alcohol (2-octanol), DDA-MIBC blend, and DDA-2-octanol blend were investigated for different concentrations. The bubble aspect ratio of these
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ab8616dc530488761ee3d67cc3d7e953
https://doi.org/10.1016/j.powtec.2018.07.031
https://doi.org/10.1016/j.powtec.2018.07.031
Autor:
Shaoxian Song, Mario Alberto Corona Arroyo, Fanfei Min, Alejandro López Valdivieso, Jinbo Zhu, Hongzheng Zhu
Publikováno v:
Chemical Engineering Research and Design. 137:461-466
The Sauter mean diameter (d32) of bubbles was characterized for a gas–liquid system in a laboratory Jameson-type flotation cell with focus on the size variation in the uprising path of the bubbles in the riser of the flotation cell. Methyl isobutyl
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3a595c2183a34d7d102f23891284224e
https://doi.org/10.1016/j.cherd.2018.08.005
https://doi.org/10.1016/j.cherd.2018.08.005