干旱区生态环境知识资源中心(Arid): Direct synthesis of a chelating carboxamide derivative and its application for thorium extraction from Abu Rusheid ore sample, South Eastern Desert, Egypt

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DOI	10.1080/03067319.2021.1924161
	Direct synthesis of a chelating carboxamide derivative and its application for thorium extraction from Abu Rusheid ore sample, South Eastern Desert, Egypt
	Atia, Bahig M.; Gado, Mohamed A.; Cheira, Mohamed F.; El-Gendy, Hassan S.; Yousef, Mohamed A.; Hashem, Mohamed D.
通讯作者	Atia, BM (corresponding author), Nucl Mat Author, Cairo, Egypt.
来源期刊	INTERNATIONAL JOURNAL OF ENVIRONMENTAL ANALYTICAL CHEMISTRY
ISSN	0306-7319
EISSN	1029-0397
出版年	2021-05
英文摘要	Direct synthesis of Pyridine-2,6-dicarboxylic a-+cid bis-(3-hydroxy phenyl)]amide, (Pydca), chelating ligand was applied for Th(IV) extraction from Abu Rusheid Ore Sample, South Eastern Desert, Egypt, between latitudes 24 degrees 37(MODIFIER LETTER PRIME) 16(MODIFIER LETTER PRIMEMODIFIER LETTER PRIME) N and longitudes 34 degrees 46 (MODIFIER LETTER PRIME) 35 (MODIFIER LETTER PRIMEMODIFIER LETTER PRIME) E and far from the Red Sea coast by about 42 km west, using poly phosphoric acid catalyst (PPA). The synthesis of new amide via direct condensation of organic acid and aromatic amine was performed in DMF at 100 degrees C. The immediate condensation reaction led to construct the carboxamide derivative in one easy step dismantling the hard activation, halogenation, step resulting in a good yield production. This cross-coupling reaction appears simple, convenient and has a wide scope of activities. This protocol could be extended to industrial large-scale production processes. Experimental measurements have been optimised such as diluent type, pH, contact time, initial Th(IV) concentration, temperature, pydca conc., co-existing ions and stripping agents. It was found that a maximum value of Th(IV) retention (0.86 x 10(-3) mol/L) is observed with 0.015 mol/L pydca/CCl4 chelating ligand at room temperature. From kinetic aspects, it was found that Th(IV) extraction follows the pseudo-first order kinetic model. The thermodynamic parameters, Delta S, Delta H and Delta G were also evaluated indicating an endothermic and spontaneous extraction process with increasing the randomness of the extraction system. Th(IV) can be completely back extracted from the loaded pydca chelating ligand using 0.5 M HNO3, 1 M H2SO4 and 1 M HCl. Finally, the optimised factors have been applied for Th(IV) recovery from Abu Rusheid Ore Sample, South Eastern Desert, Egypt, producing a thorium oxide concentrate with Th(IV) content of 81.43% with a purity of 92.67%.
英文关键词	Direct synthesis carboxamide pyridine-2 6-dicarboxylic acid bis-(3-hydroxy phenyl)]amide chelating ligand pydca thorium extraction Abu Rusheid ore sample
类型	Article ; Early Access
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000653553400001
WOS关键词	RARE-EARTH-ELEMENTS ; SOLVENT-EXTRACTION ; NITRIC-ACID ; SELECTIVE SEPARATION ; METAL-COMPLEXES ; URANIUM ; RECOVERY ; AMIDES ; TH(IV) ; TH
WOS类目	Chemistry, Analytical ; Environmental Sciences
WOS研究方向	Chemistry ; Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/352256
作者单位	[Atia, Bahig M.; Gado, Mohamed A.; Cheira, Mohamed F.; El-Gendy, Hassan S.; Yousef, Mohamed A.; Hashem, Mohamed D.] Nucl Mat Author, Cairo, Egypt
推荐引用方式 GB/T 7714	Atia, Bahig M.,Gado, Mohamed A.,Cheira, Mohamed F.,et al. Direct synthesis of a chelating carboxamide derivative and its application for thorium extraction from Abu Rusheid ore sample, South Eastern Desert, Egypt[J],2021.
APA	Atia, Bahig M.,Gado, Mohamed A.,Cheira, Mohamed F.,El-Gendy, Hassan S.,Yousef, Mohamed A.,&Hashem, Mohamed D..(2021).Direct synthesis of a chelating carboxamide derivative and its application for thorium extraction from Abu Rusheid ore sample, South Eastern Desert, Egypt.INTERNATIONAL JOURNAL OF ENVIRONMENTAL ANALYTICAL CHEMISTRY.
MLA	Atia, Bahig M.,et al."Direct synthesis of a chelating carboxamide derivative and its application for thorium extraction from Abu Rusheid ore sample, South Eastern Desert, Egypt".INTERNATIONAL JOURNAL OF ENVIRONMENTAL ANALYTICAL CHEMISTRY (2021).