Zobrazeno 1 - 6
of 6
pro vyhledávání: '"V. N. Vaulina"'
Publikováno v:
Russian Journal of Applied Chemistry. 91:560-565
Fundamental aspects of the extractive recovery of copper(II) in the presence of accompanying metals from sulfuric acid solutions with hydrazides of Versatic (GVIK 509) α-branched tertiary carboxylic acids in kerosene or its mixture with modifying ag
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3cdfcfd86825d8133e461e0acf9134e8
https://doi.org/10.1134/s1070427218040055
https://doi.org/10.1134/s1070427218040055
Publikováno v:
Russian Journal of Applied Chemistry. 89:880-885
Possibility of direct extraction of 0.66 g L–1 Ni(II), 0.048 g L–1 Co(II), and 0.024 g L–1 Zn(II) in the presence of the nine commonly accompanying elements from a model solution for underground sulfuric acid leaching of an oxidized Ni ore with
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8377e984c194d9853b173d1eb4f036f6
https://doi.org/10.1134/s1070427216060057
https://doi.org/10.1134/s1070427216060057
Publikováno v:
Russian Journal of Inorganic Chemistry. 57:738-743
Extraction of Cu(II), Co(II), Ni(II), and Zn(II) with N-(para-tert-butylbenzoyl)-N′,N′-dialkylhydrazines was studied. In contrast to other listed elements, copper(II) is extracted with these reagents in a wide pH range and NH3 concentrations, whi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::52e48e9764f82460e0b0195bea3e3391
https://doi.org/10.1134/s0036023612050087
https://doi.org/10.1134/s0036023612050087
Publikováno v:
Separation Science and Technology. 46:1665-1672
This article is concerned with the study of the extraction of Cu(II), Co(II), Ni(II), and Zn(II) with N′,N′-dialkylhydrazides of benzoic and phenylacetic acids. The applied reagents are able to extract Cu(II) from ammoniac media efficiently. The
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a616284824d0882fef79abf3be23130a
https://doi.org/10.1080/01496395.2011.575428
https://doi.org/10.1080/01496395.2011.575428
Publikováno v:
Russian Journal of General Chemistry. 79:940-943
Benzoic acid N,N-dialkylhydrazides of the general formula C6H5C(O)NHNR2, R = C4H9, C6H13, C8H17, C10H21, were obtained,. Their solubility, acid-base properties, stability against hydrolysis, distribution between organic and water phases were studied.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a43557d29e86fa51aa7ce6d9e2e5205c
https://doi.org/10.1134/s1070363209050120
https://doi.org/10.1134/s1070363209050120
Publikováno v:
Journal of Analytical Chemistry. 65:814-815
A procedure for extraction-photometric determination of N′,N′-dialkylbenzhydrazides has been proposed; the procedure is based on the formation of its colored complex with copper (II) followed by extraction with p-xylene and absorbance measurement
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::79c6e632b6766d685987b916d6ff1271
https://doi.org/10.1134/s1061934810080083
https://doi.org/10.1134/s1061934810080083