Results 11 to 20 of about 15,173 (194)

Effect of the Extractant Properties on Extraction Performance of Coal Liquefied Oil Residue

open access: yesTaiyuan Ligong Daxue xuebao, 2023
To solve the problem of efficient extraction of coal liquefied oil residue, the extractants with different properties, such as aliphatic hydrocarbon, aromatic hydrocarbon, oxygen-containing compounds, and simulated coking benzene, were selected for the ...
Yang LIU   +9 more
doaj   +1 more source

Eficiência de extratores de potássio disponível em solos do estado da Paraíba com graus de desenvolvimento pedogenético diferentes Efficiency of available potassium extractants in soils of Paraiba State with different degrees of pedogenetic development

open access: yesRevista Brasileira de Ciência do Solo, 2010
A disponibilidade de potássio (K) às plantas depende dos teores das formas de K nos solos (K não trocável, K trocável e K solúvel), os quais variam com o grau de desenvolvimento pedogenético dos solos.
Jailma dos Santos de Medeiros   +4 more
doaj   +1 more source

A review of acid recovery from acidic mining waste solutions using solvent extraction [PDF]

open access: yes, 2018
This is the peer reviewed version of the following article: Uchenna Kesieme, Andreas Chrysanthou, Maurizio Catulli, and Chu Yong Cheng, ‘A review of acid recovery from acidic mining waste solutions using solvent extraction’, Journal of Chemical ...
Catulli, Maurizio   +3 more
core   +2 more sources

Influência da escória silicatada na acidez do solo e na produtividade de grãos do arroz de terras altas Influence of calcium silicate slag on soil acidity and upland rice grain yield

open access: yesCiência e Agrotecnologia, 2004
Apesar dos elevados teores de SiO2 total geralmente encontrados nos solos brasileiros, o teor na solução do solo pode ser baixo, em conseqüência do processo de dessilicificação que ocorre durante a intemperização dos solos.
Morel Pereira Barbosa Filho   +2 more
doaj   +1 more source

The optimal use of tris-2-ethylhexylamine to recover hydrochloric acid and metals from leach solutions and comparison with other extractants [PDF]

open access: yes, 2018
This document is the Accepted Manuscript version of the following article: Uchenna Kesieme, Andreas Chrysanthou, Maurizio Catulli, and Chu Yong Cheng, ‘The optimal use of tris-2-ethylhexylamine to recover hydrochloric acid and metals from leach solutions
Catulli, Maurizio   +3 more
core   +2 more sources

Extractants Based on Coordinating Liquid Polar Solvents for Removal of Sulfur Compounds from Diesel Fuels

open access: yesApplied Sciences, 2018
To remove sulfur-containing compounds (SCC) from the diesel fraction 200–360 °C extraction systems have been created based on coordinating organic solvents—dimethylformamide and dimethylsulfoxide, metal chlorides (CoCl2, CuCl2, CdCl2 ...
Natalia Stanislavovna Kobotaeva   +4 more
doaj   +1 more source

Chiral separation by enantioselective liquid–liquid extraction [PDF]

open access: yes, 2011
The literature on enantioselective liquid–liquid extraction (ELLE) spans more than half a century of research. Nonetheless, a comprehensive overview has not appeared during the past few decades.
Feringa, Ben L.,   +5 more
core   +3 more sources

To extract or not to extract? [PDF]

open access: yesJournal of Dentofacial Anomalies and Orthodontics, 2015
Address for correspondence: sorelolivier@wanadoo.fr Our training in dental surgery or stomato­ logy has taught us everything we need to know about teeth: their life and works. We afford them care and protection and, as od­ ontologists, reorganization. Faced by the failure of long­term results for expansion, C.
openaire   +1 more source

Review on the Comparison of the Chemical Reactivity of Cyanex 272, Cyanex 301 and Cyanex 302 for Their Application to Metal Separation from Acid Media

open access: yesMetals, 2020
Cyanex extractants, such as Cyanex 272, Cyanex 301, and Cyanex 302 have been commercialized and widely used in the extraction and separation of metal ions in hydrometallurgy.
Viet Nhan Hoa Nguyen   +2 more
doaj   +1 more source

Salicylaldehyde hydrazones: buttressing of outer sphere hydrogen-bonding and copper-extraction properties [PDF]

open access: yes, 2017
Salicylaldehyde hydrazones are weaker copper extractants than their oxime derivatives, which are used in hydrometallurgical processes to recover ~20 % of the world’s copper.
Bauer, Heiko   +7 more
core   +1 more source

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