Zobrazeno 1 - 10
of 50
pro vyhledávání: ''
Publikováno v:
Hydrometallurgy. 188:73-80
This work aims to improve the extraction performance of organophosphorus acid extractants (di-(2-ethylhexyl) phosphoric acid (P204), 2-ethylhexyl phosphoric acid mono-2-ethylhexyl ester (P507, H2A2), di-(2-ethylhexyl) phosphinic acid (P227, H2B2) and
Publikováno v:
Hydrometallurgy. 185:12-22
A microwave-assisted method for the synthesis of Re(VII)-selective anion exchange resins is proposed within this paper. The procedure involved (1) the copolymerization of vinylbenzyl chloride (VBC) and divinylbenzene (DVB), followed by (2) the modifi
Publikováno v:
Hydrometallurgy. 183:199-206
In this study, the removal effect of arsenic(V) was compared with different lead-containing substances, and the process of arsenic(V) removal with lead oxide was optimized. The results showed that As(V) removal efficiencies with lead powder, lead oxi
Publikováno v:
Hydrometallurgy. 183:207-212
An aromatic ethereal compound, 1-methoxy-2-octoxybenzene, was recently found to be a good extractant for Au(III) from hydrochloric acid media. The present study therefore investigated the structural factors of ethereal compounds for the extraction of
Publikováno v:
Hydrometallurgy. 180:104-112
The acidic ferric sulphate system is the industrial standard for the acid leaching of uranium ores. Alternatives such as ferric chloride/hydrochloric acid have been investigated, but never used industrially. Selected ferric sulphate leaching experime
Publikováno v:
Hydrometallurgy. 180:58-64
A separation process was developed to recover Au(III) from the chloride leach solution of anode slime using selective extraction and stripping step. The anode slime contained Ag, Au, Cu, Ni, Sn and Zn. The extraction with Cyanex 272 in kerosene was c
Publikováno v:
Hydrometallurgy. 180:49-57
In Part 1 of this paper, gold(III) and Sn(II) were recovered from the chloride leach solution of anode slimes by extraction with Cyanex 272 and stripping with (NH4)2S2O3 and NaOH solutions for gold(III) and Sn(II), sequentially. In this work, solvent
Publikováno v:
Hydrometallurgy. 178:176-180
Ethereal compounds act as good extractants for Au(III) from hydrochloric-acid media. We developed a novel aromatic ethereal compound 1-methoxy-2-octoxybenzene (o-MOB) as an extractant for Au(III). Au(III) extraction using o-MOB in hydrochloric-acid m
Autor:
Koen Binnemans, Nagaphani Kumar Batchu
Publikováno v:
Hydrometallurgy. 177:146-151
The effect of different types of diluents on the extraction of neodymium(III) from a chloride aqueous feed solution by the acidic extractant bis(2-ethylhexylphosphoric) acid (D2EHPA) was investigated. A total of 11 aliphatic, mixed aliphatic-aromatic
Publikováno v:
Hydrometallurgy. 175:144-149
Respirable sintering dust was an abundant and hazardous waste arrested by electrostatic precipitators from iron and steel industry. In this study, this waste was first found to contain 0.3% Rb, existing in the form of chloride and making it a promisi