2015
DOI: 10.1016/j.jct.2014.08.011
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Measurement and modeling for vanadium extraction from the (NaVO3+H2SO4+H2O) system by primary amine N1923

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Cited by 25 publications
(8 citation statements)
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“…However, it seriously pollutes the environment, and has difficulties in comprehensive utilization of the leaching residue and in the recycling of wastewater, which contains high concentration of sodium. Consequently, some novel processes for cleaner vanadium extraction have been proposed, like roasting without adding salt [4], submolten salt extraction [5][6][7], alkali decomposition enhanced by electrochemistry [8], direct acid leaching [9][10][11], sulfating roasting [12] and calcified roasting followed by dilute acid leaching [13,14]. Vanadium extraction with calcium salt roasting is increasingly concerned these years due to its lower cost of roasting additive, no emission of pollutional gas, like HCl, Cl 2 , SO 2 and SO 3 , and no sodium contained in subsequent leaching residual and wastewater.…”
Section: Introductionmentioning
confidence: 99%
“…However, it seriously pollutes the environment, and has difficulties in comprehensive utilization of the leaching residue and in the recycling of wastewater, which contains high concentration of sodium. Consequently, some novel processes for cleaner vanadium extraction have been proposed, like roasting without adding salt [4], submolten salt extraction [5][6][7], alkali decomposition enhanced by electrochemistry [8], direct acid leaching [9][10][11], sulfating roasting [12] and calcified roasting followed by dilute acid leaching [13,14]. Vanadium extraction with calcium salt roasting is increasingly concerned these years due to its lower cost of roasting additive, no emission of pollutional gas, like HCl, Cl 2 , SO 2 and SO 3 , and no sodium contained in subsequent leaching residual and wastewater.…”
Section: Introductionmentioning
confidence: 99%
“…In the above-mentioned reagents, primary amine N1923 is always used in the industrial process. However, the extracting mechanism of vanadium with primary amine N1923 was not investigated by reliable methods but only speculated as hydrogen bond association. , Several metal–organic compounds are formed simultaneously in the extraction process when various species of vanadium , contact with the extractant of primary amine N1923. High purity of metal–organic compound was difficult to obtain by common separation methods (e.g., recrystallization, column separation, and membrane separation).…”
Section: Introductionmentioning
confidence: 99%
“…Во-вторых, ванадий образует большое количество разнообразных соединений, в зависимости от концентрации и рН среды [3][4][5][6].Существует достаточно много способов получения чистого пентоксида ванадия, таких как содово-карбонатно-аммиачная технология [4], методы хлорирования ванадийсодержащего сырья, осаждение содой и известковая технология, экстракционные и сорбционные методы [7-10]. Наименее изученными и наиболее перспективными являются сорбционные методы, которые в основном представлены улавливанием ванадия на анионообменных смолах и сорбентах на основе специфических матриц [7][8][9][10][11]. Среди недостатков способов можно отметить недостаточно высокую селективность, введение дополнительной стадии регенерации ионообменной смолы или стадии отмывки сорбента от соединений ванадия, образование большого количества промывного раствора.…”
unclassified
“…Существует достаточно много способов получения чистого пентоксида ванадия, таких как содово-карбонатно-аммиачная технология [4], методы хлорирования ванадийсодержащего сырья, осаждение содой и известковая технология, экстракционные и сорбционные методы [7][8][9][10]. Наименее изученными и наиболее перспективными являются сорбционные методы, которые в основном представлены улавливанием ванадия на анионообменных смолах и сорбентах на основе специфических матриц [7][8][9][10][11].…”
unclassified