Zobrazeno 1 - 10
of 50
pro vyhledávání: '"P.K. Khopkar"'
Autor:
J.N. Mathur, P.K. Khopkar
Publikováno v:
Solvent Extraction and Ion Exchange. 3:753-762
Adsorption studies of several actinides and lanthanides have been carried out by chelating ion exchange resin Dowex A-1. The metal ions studied were Pu4+, Zr4+, UO2 ++, Am3+, Cm3+, Bk3+, Cf3+, Eu3+, and Tm3+. The separation factors between consecutiv
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d00394a1c5fc9267763fefffe5fb4f69
https://doi.org/10.1080/07366298508918538
https://doi.org/10.1080/07366298508918538
Autor:
P.K. Khopkar, Prasanta K. Mohapatra
Publikováno v:
Polyhedron. 8:2071-2076
In the solvent extraction studies of trivalent Am, Cm, La, Eu and Lu using thenoyltrifluoroacetone (HTTA) in xylene as the extractant, the pH variation experiments at a fixed extractant concentration revealed a reduction in slope from three to two wh
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fdd9850a6e06d3c46063113302834000
https://doi.org/10.1016/s0277-5387(00)80506-9
https://doi.org/10.1016/s0277-5387(00)80506-9
Autor:
J.N. Mathur, P.K. Khopkar
Publikováno v:
Polyhedron. 3:1125-1129
Trivalent actinides, Am, Cm, Bk and Cf, have been extracted with 1-phenyl-3-methyl-4-benzoyl pyrazolone-5 (HPMBP) or 1-phenyl-3-methyl-4-(3:5-dinitrobenzoyl) pyrazolone-5 (HDMPP) in chloroform. With HPMBP, Am, Bk and Cf are extracted as the self-addu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f297f3ecf2a75e1a1d5348eebb4073fb
https://doi.org/10.1016/s0277-5387(00)88068-7
https://doi.org/10.1016/s0277-5387(00)88068-7
Autor:
P.K. Khopkar, J. N. Mathur
Publikováno v:
Journal of Inorganic and Nuclear Chemistry. 36:3819-3825
Stability constants of thiocyanate complexes of La(III), Eu(III), Tb(III), Lu(III), Pu(III), Am(III) and Cm(III) have been determined in an ammonium ion medium at 30 ± 0·1°C and unit ionic strength by a solvent extraction method. The extraction da
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::39b446a72cba48009a90c33e1320a047
https://doi.org/10.1016/0022-1902(74)80171-5
https://doi.org/10.1016/0022-1902(74)80171-5
Autor:
P.K. Khopkar, J. N. Mathur
Publikováno v:
Journal of Inorganic and Nuclear Chemistry. 39:2063-2067
Extraction of some trivalent actinides and lanthanides from chloride solutions by mixtures of thenoyl trifluoroacetone and Aliquat-336-S has been investigated. High synergistic effects are obtained in these extraction systems wherein the extracted sp
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::acd6f0c5795f61d0ed43de912c7f1ffd
https://doi.org/10.1016/0022-1902(77)80548-4
https://doi.org/10.1016/0022-1902(77)80548-4
Autor:
J. N. Mathur, P.K. Khopkar
Publikováno v:
Journal of Inorganic and Nuclear Chemistry. 41:391-395
Extraction of Am(III) and Eu(III) from 1 M NM4SCN by a quaternary amine ASCN has been investigated. The results suggest extraction of a 7-coordinated SCN− complex of the trivalent ions into the amine phase. A correlation between the number of SCN
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5a5079ad2914af5bc4b6c2c2108e25c9
https://doi.org/10.1016/0022-1902(79)80152-9
https://doi.org/10.1016/0022-1902(79)80152-9
Publikováno v:
Journal of Inorganic and Nuclear Chemistry. 39:653-657
The synergistic extraction of europium(III) with thenoyltrifluoroacetone (HTTA) and some neutral oxo-donors, viz. diphenyl sulphonide (DPSO), tributylphosphate (TBP) and trioctylphosphine oxide (TOPO) has been studied in benzene. Results indicate tha
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9e8089fdb5a32e180d73723dd345b1ec
https://doi.org/10.1016/0022-1902(77)80582-4
https://doi.org/10.1016/0022-1902(77)80582-4
Autor:
P.K. Khopkar, J. N. Mathur
Publikováno v:
Journal of Inorganic and Nuclear Chemistry. 42:109-113
Stability constants of the complexes of Cf(III) with Cl−, NO3−, SCN− and SO42−: Cm(III) with Cl−, NO3− and SO42− and Am(III) with SO42− have been determined at 30°C in ammonium ion media of unit ionic strength by a solvent extraction
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fa3a4c08f8b32dc0304577cb6f77b812
https://doi.org/10.1016/0022-1902(80)80054-6
https://doi.org/10.1016/0022-1902(80)80054-6
Autor:
P.K. Khopkar, J. N. Mathur
Publikováno v:
Journal of Inorganic and Nuclear Chemistry. 43:1035-1040
Extraction of some trivalent actinides and lanthanides from 11.9 M LiCl (pH 2.0) by some primary, secondary, tertiary and quaternary amines in xylene has been studied. Negligible extraction of the metal ions was found with primary and secondary amine
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7653d44f0d5c2939db3ea4bc78dd3e4b
https://doi.org/10.1016/0022-1902(81)80170-4
https://doi.org/10.1016/0022-1902(81)80170-4
Autor:
P.K. Khopkar, J.N. Mathur
Publikováno v:
Polyhedron. 6:2099-2102
Extraction of the trivalent actinides Am, Cm and Cf and lanthanides Eu, Tb, Tm and Lu has been studied with 1-phenyl-3-methyl-4-trifluoroacetyl pyrazolone- 5(HPMTFP) in chloroform and benzene. The formation of a self-adduct species M(PMTFP)3·HPMTFP
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::768bb606ad89561a0aa773b3c9120c70
https://doi.org/10.1016/s0277-5387(00)84271-0
https://doi.org/10.1016/s0277-5387(00)84271-0