12 Result(s)
within
M. Lemaire
Chemistry
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Article
Hydrodesulfurization of Diesel Feeds by Association of a Catalytic Process and a Separation Process Using Charge-Transfer Complexes
While deep hydrodesulfurization of gas oil is more and more important, elimination of sulfur compounds such as 4,6-dialkyldibenzothio-phenes still attracts considerable attention. A new process based on the as...
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Article
Separation of americium(III) from lanthanides(III) by nanofiltration-complexation in aqueous medium
The separation of Am(III) from a mixture of lanthanides(III) was performed in aqueous medium by nanofiltration combined with a complexation step using a DTPA derivative as selective complexing agent.
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Article
Separation of gadolinium(III) and lanthanum(III) by nanofiltration-complexation in aqueous medium
A new method is proposed for the separation of gadolinium(III) and lanthanum(III) in aqueous medium by nanofiltration combined with a complexation step. First DTPA was chosen as ligand for a selective Gd(III)/...
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Chapter and Conference Paper
Synthesis and Evaluation of New Ionoselective Materials
Despite recent improvements in both sensitivity and selectivity of analytical methods, separation and preconcentration of traces of ions remain essential steps in many chemical analyses. Tailor-making specific...
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Chapter and Conference Paper
Synthesis of Water Soluble Resorcinarenes Application in Nanofiltration-Complexation
Considerable effort has been devoted to the development of methods for the long-term isolation of nuclear wastes from the environment. The most promising approach which is currently available involves incorpor...
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Chapter and Conference Paper
Caesium-Selective Imprinted Phenolic Resins
The molecular imprinting technique is a promising way of preparing highly selective host polymers since it requires no multistep synthesis. This in contrast with supramolecular design. This direct polymerisati...
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Article
Recent advances in homogeneous and heterogeneous asymmetric catalysis with nitrogen–containing ligands
Nitrogen–containing chiral ligands are being used more and more in asymmetric catalysis. This article is an overview of results published in 1993--1996 in this field and tries to open new perspectives for this...
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Article
Selective extraction of palladium from acidic nitrate solutions with thiamacrocycles-synergized dinonylnaphthalenesulfonic acid systems
Thiamacrocycles-synergized sulfonic acid extraction systems have been studied for removing traces of palladium from nitric acid solutions. The influence of the concentration of nitric acid, HDNNS, and thiamacr...
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Chapter
Heterogeneous Asymmetric Catalysis with C2 Symmetric Amine-Modified Rhodium/Silica
Supported homogeneous catalysis is generally obtained by synthesis of material in which ligand is covalently bound to the support [1]. Such synthesis are generally neither straightforward nor easy to reproduce.
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Chapter
Enantio- and Diastereoselective Reduction of Disubstituted Aromatics
Biological activity is closely tied to chirality and control of the enantioselectivity in the synthesis of fine chemicals is of increasing interest [1-3]. Although a large number of enantioselective reductions...
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Article
New extractant for selective recovery of palladium from high level radioactive waste
Use of di- or tri-thioether instead monothioether permits to increase both efficiency and selectivity of the extraction of palladium. This selectivity allows the separation of palladium contained in nuclear fu...
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Article
Radiolytic products study of dicyclohexano-18-crown-6, a selective extractant for nuclear fuel reprocessing
The radiolytic products of the DCH18C6 obtained after γ-irradiation have been determined, and the seven main structures have been separated and analyzed. The radiolytic product yields range from about 0.01 to ...
