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See detailProcess for radical controlled polymerization or copolymerization of (meth)acryl and vinyl monomers and thus prepared (co)polymers
Lecomte, Philippe ULg; Dubois, Philippe; Jérôme, Robert ULg et al

Patent (1998)

This process is characterized by the fact that at least one of the said monomers is polymerized or copolymerized in bulk, solution, emulsion or suspension, at a temperature that can be as low as 0 DEG C ... [more ▼]

This process is characterized by the fact that at least one of the said monomers is polymerized or copolymerized in bulk, solution, emulsion or suspension, at a temperature that can be as low as 0 DEG C., in the presence of an initiation system including: at least one compound generating radicals, other than bromofluorene, and at least one catalyst consisting of a complex of palladium in the 0 oxidation state, denoted by the following formula (I): Pd(0)L1L2L3L4 in which each of L1, L2, L3 and L4, which are identical or different, denotes a ligand which may be a chiral ligand, which is chosen from PRR'R'', P(OR)(OR')(OR''), NRR'R'', ORR', SRR', SeRR', AsRR'R'', SbRR'R'', where each of R, R' and R'' independently denotes a C1-C14 alkyl group, optionally substituted, or an optionally substituted aromatic group, it being possible for at least two of these ligands to be joined to one another by one or more divalent radicals. [less ▲]

Detailed reference viewed: 6 (1 ULg)
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See detailProcess for radical controlled polymerization or copolymerization of (meth)acryl and vinyl monomers and thus prepared (co)polymers
Lecomte, Philippe ULg; Dubois, Philippe; Jérôme, Robert ULg et al

Patent (1998)

A process for a radical-controlled polymerisation or co-polymerisation of (meth)acrylic and/or vinylic monomers is effected en masse, solution, emulsion or suspension at a temperature which may be as low ... [more ▼]

A process for a radical-controlled polymerisation or co-polymerisation of (meth)acrylic and/or vinylic monomers is effected en masse, solution, emulsion or suspension at a temperature which may be as low as 0 degrees C, in the presence of a system comprising (i) a radical generator compound other than bromofluorene; and (ii) a catalyst consisting of a Pd complex of degree of oxidation zero, corresponding to formula Pd(0)L<1>L<2>L<3>L<4> (I), where L<1>-L<4> = ligand (possibly chiral) chosen from PRR<1>R<2>, P(OR)(OR<1>)(OR<2>), NRR<1>R<2>, ORR<1>, SRR<1>, SeRR<1>, AsRR<1>R<2> and SbRR<1>R<2>; and R, R<1>, R<2> = 1-14C alkyl (optionally substituted) or aromatic (optionally substituted), at least two of the ligands being capable of interconnecting with one or more bivalent radicals. [less ▲]

Detailed reference viewed: 16 (2 ULg)
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See detailProcess for radical controlled polymerization or copolymerization of (meth)acryl and vinyl monomers and thus prepared (co)polymers
Lecomte, Philippe ULg; Dubois, Philippe; Jérôme, Robert ULg

Patent (1998)

A process for a radical-controlled polymerisation or co-polymerisation of (meth)acrylic and/or vinylic monomers is effected en masse, solution, emulsion or suspension at a temperature which may be as low ... [more ▼]

A process for a radical-controlled polymerisation or co-polymerisation of (meth)acrylic and/or vinylic monomers is effected en masse, solution, emulsion or suspension at a temperature which may be as low as 0 degrees C, in the presence of a system comprising (i) a radical generator compound other than bromofluorene; and (ii) a catalyst consisting of a Pd complex of degree of oxidation zero, corresponding to formula Pd(0)L<1>L<2>L<3>L<4> (I), where L<1>-L<4> = ligand (possibly chiral) chosen from PRR<1>R<2>, P(OR)(OR<1>)(OR<2>), NRR<1>R<2>, ORR<1>, SRR<1>, SeRR<1>, AsRR<1>R<2> and SbRR<1>R<2>; and R, R<1>, R<2> = 1-14C alkyl (optionally substituted) or aromatic (optionally substituted), at least two of the ligands being capable of interconnecting with one or more bivalent radicals. [less ▲]

Detailed reference viewed: 12 (2 ULg)
Full Text
See detailProcess for radical controlled polymerization or copolymerization of (meth)acryl and vinyl monomers and thus prepared (co)polymers
Lecomte, Philippe ULg; Dubois, Philippe; Jérôme, Robert ULg et al

Patent (1998)

A process for a radical-controlled polymerisation or co-polymerisation of (meth)acrylic and/or vinylic monomers is effected en masse, solution, emulsion or suspension at a temperature which may be as low ... [more ▼]

A process for a radical-controlled polymerisation or co-polymerisation of (meth)acrylic and/or vinylic monomers is effected en masse, solution, emulsion or suspension at a temperature which may be as low as 0 degrees C, in the presence of a system comprising (i) a radical generator compound other than bromofluorene; and (ii) a catalyst consisting of a Pd complex of degree of oxidation zero, corresponding to formula Pd(0)L<1>L<2>L<3>L<4> (I), where L<1>-L<4> = ligand (possibly chiral) chosen from PRR<1>R<2>, P(OR)(OR<1>)(OR<2>), NRR<1>R<2>, ORR<1>, SRR<1>, SeRR<1>, AsRR<1>R<2> and SbRR<1>R<2>; and R, R<1>, R<2> = 1-14C alkyl (optionally substituted) or aromatic (optionally substituted), at least two of the ligands being capable of interconnecting with one or more bivalent radicals. [less ▲]

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See detailProcess for the preparation of a catalyst and its use for the conversion of chloroalkanes into alkenes containing less chlorine
Delhez, Patrice; Heinrichs, Benoît ULg; Pirard, Jean-Paul ULg et al

Patent (2000)

Process for the preparation of a catalyst including a metal of group VIII and a metal of group Ib, according to which the mixture including the alkoxide precursor of an inorganic oxide and complexes ... [more ▼]

Process for the preparation of a catalyst including a metal of group VIII and a metal of group Ib, according to which the mixture including the alkoxide precursor of an inorganic oxide and complexes including the metals of group VIII and Ib and difunctional complexing compounds including an electron-donor group and a hydrolysable group is hydrolysed in order to form a gel. Process for the conversion of chloroalkanes into alkenes containing less chlorine by means of hydrogen, using such a catalyst. [less ▲]

Detailed reference viewed: 39 (18 ULg)
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See detailProcess for the synthesis for alkoxy amines and their use in controlled radical polymerization
Detrembleur, Christophe ULg; Gross, Thomas; Meyer, Rolf-Volker

Patent (2004)

A one-pot process for the preparation of alkoxyamines conforming to formulae (I) or (II), preferably (I) is disclosed. The process entails (1) reacting of an oxidizing agent (A) with a sterically hindered ... [more ▼]

A one-pot process for the preparation of alkoxyamines conforming to formulae (I) or (II), preferably (I) is disclosed. The process entails (1) reacting of an oxidizing agent (A) with a sterically hindered secondary amine of the general formula (III), in a water-containing medium to form a reaction product and an aqueous phase, (2) removing of the aqueous phase, and (3) (adding to the reaction product a free-radical initiator (B) under conditions that promote the decomposition of the initiator to generate free radicals. Also disclosed is a process for polymerizing monomers, the process using the alkoxyamine prepared by the inventive process. [less ▲]

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See detailA process for the synthesis of alkoxyamines and their use in controlled radical polymerization
Detrembleur, Christophe ULg; Gross, Thomas; Meyer, Rolf-Volker

Patent (2003)

A one-pot process for the preparation of alkoxyamines conforming to formulae (I) or (II), preferably (I) (See formulas I and II) is disclosed. The process entails (1) reacting of an oxidizing agent (A ... [more ▼]

A one-pot process for the preparation of alkoxyamines conforming to formulae (I) or (II), preferably (I) (See formulas I and II) is disclosed. The process entails (1) reacting of an oxidizing agent (A) with a sterically hindered secondary amine of the general formula (III), (See formula III) in a water-containing medium to form a reaction product and an aqueous phase , (2) removing of the aqueous phase, and (3) adding to the reaction product a free-radical initiator (B) under conditions that promote the decomposition of the initiator to generate free radicals. Also disclosed is a process for polymerizing monomers, the process using the alkoxyamine prepared by the inventive process. [less ▲]

Detailed reference viewed: 15 (2 ULg)
See detailProcess for the synthesis of nucleotide-6-deoxy-D-xylo-4-hexulosen
Marquardt, Ruediger; Hoersch, Brigitte; Seiffert-Stoeriko, Andreas et al

Patent (1999)

Detailed reference viewed: 7 (0 ULg)
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Peer Reviewed
See detailProcess Integration Techniques in the Development of New Energy Technologies : Application to the Isothermal Gas Turbine
Dumont, Marie-Noëlle ULg; Marechal, Francois; Kalitventzeff, Boris ULg

(1998, August)

Cogeneration is one of the key technologies for CO2 reduction in the process industry. A good integration of the cogeneration system and the process is necessary to obtain the maximum energy saving. This ... [more ▼]

Cogeneration is one of the key technologies for CO2 reduction in the process industry. A good integration of the cogeneration system and the process is necessary to obtain the maximum energy saving. This requires the possibility of adapting the design parameters of the cogeneration system to better suit the process requirements. The isothermal gas turbine is a new concept combining partial oxidation and staged combustion inside a gas turbine to reach electrical efficiencies as high as 58%. The use of steam in the catalytic burner allows to expand steam directly in the gas turbine in such a way that the mechanical power production is increased. The flue gases composition and temperature are therefore modified. New flow sheets for combined cycles will be presented as well as their adaptation to different steam to carbon ratios. When using isothermal gas turbine as a cogeneration system, the steam flowrate allows adapting the flue gases of the turbine in order to match at best the process requirements. The conceptual design of the isothermal gas turbine integration has been performed using the « Effect Modeling and Optimization » concept that is based on process integration techniques. This serves as a first step to identify the major flow rates to be considered for the technology. The final configuration of the integrated technology has been evaluated afterwards using process simulation. [less ▲]

Detailed reference viewed: 18 (9 ULg)
Peer Reviewed
See detailProcess mineralogy and automated phase identification in mixed copper ores at Kansanshi (Zambia)
Kottgen; Bastin, David ULg; Dufrane, Florent et al

Conference (2010)

Detailed reference viewed: 15 (0 ULg)
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Peer Reviewed
See detailProcess monitoring using a combination of data driven techniques and model based data validation
Duchesne, Arnaud; Heyen, Georges ULg; Mack, Philippe et al

in Revista de Chimie (2007), 58(4), 423-426

Process monitoring is made difficult when measurements are subjected to errors, since pertinent information is hidden in the measurement noise. To address this issue, one can use model based data ... [more ▼]

Process monitoring is made difficult when measurements are subjected to errors, since pertinent information is hidden in the measurement noise. To address this issue, one can use model based data validation, or rely on statistical techniques to analyze large historical data sets (data mining). An industrial case study is presented here, where a model based approach (data validation) is compared to data driven techniques. [less ▲]

Detailed reference viewed: 65 (7 ULg)
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See detailThe process of constitutional amendment in Belgium
Behrendt, Christian ULg

in Contiades, Xenophon (Ed.) Engeneering Constitutional Change : A Comparative Perpective on Europe, Canada and the USA (2013)

This essay provides a commentary on article 195 (formerly 131) of the Belgian Constitution, i.e. on the provision which governs constitutional amendment in Belgium.

Detailed reference viewed: 237 (22 ULg)
See detailThe process of pauperization in groups at a high risk of deprivation
Born, Michel ULg; Schaber, G.; Dickes, P. et al

Book published by Commission des Communautés Européennes (1982)

Detailed reference viewed: 7 (0 ULg)
See detailProcess oriented characterization of Jarkhand iron ore
Bastin, David ULg

Report (2009)

Detailed reference viewed: 14 (0 ULg)
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Peer Reviewed
See detailProcess window enhancement for single point incremental forming through multi-step toolpaths
Duflou, J. R.; Verbert, J.; Belkassem, B. et al

in CIRP Annals - Manufacturing Technology (2008), (57), 253-256

Single point incremental forming (SPIF) suffers from process window limitations which are strongly determined by the maximum achievable forming angle. Forming consecutive, intermediate shapes can ... [more ▼]

Single point incremental forming (SPIF) suffers from process window limitations which are strongly determined by the maximum achievable forming angle. Forming consecutive, intermediate shapes can contribute to a significantly enlarged process window by allowing steeper maximum wall angles for a range of part geometries. In this paper an experimentally explored multi-step toolpath strategy is reported and the resulting part geometries compared to simulation output. Sheet thicknesses and strains achieved with these multi-step toolpaths were verified and contribute to better understanding of the material relocation mechanism underlying the enlarged process window. [less ▲]

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See detailProcess-evaluation of tropospheric humidity simulated by general circulation models using water vapor isotopologues: 1. Comparison between models and observations
Risi, C; Noone, D; Worden, J et al

in Journal of Geophysical Research (2012), 117(D5), 05303

N2 - The goal of this study is to determine how H2O and HDO measurements in water vapor can be used to detect and diagnose biases in the representation of processes controlling tropospheric humidity in ... [more ▼]

N2 - The goal of this study is to determine how H2O and HDO measurements in water vapor can be used to detect and diagnose biases in the representation of processes controlling tropospheric humidity in atmospheric general circulation models (GCMs). We analyze a large number of isotopic data sets (four satellite, sixteen ground-based remote-sensing, five surface in situ and three aircraft data sets) that are sensitive to different altitudes throughout the free troposphere. Despite significant differences between data sets, we identify some observed HDO/H2O characteristics that are robust across data sets and that can be used to evaluate models. We evaluate the isotopic GCM LMDZ, accounting for the effects of spatiotemporal sampling and instrument sensitivity. We find that LMDZ reproduces the spatial patterns in the lower and mid troposphere remarkably well. However, it underestimates the amplitude of seasonal variations in isotopic composition at all levels in the subtropics and in midlatitudes, and this bias is consistent across all data sets. LMDZ also underestimates the observed meridional isotopic gradient and the contrast between dry and convective tropical regions compared to satellite data sets. Comparison with six other isotope-enabled GCMs from the SWING2 project shows that biases exhibited by LMDZ are common to all models. The SWING2 GCMs show a very large spread in isotopic behavior that is not obviously related to that of humidity, suggesting water vapor isotopic measurements could be used to expose model shortcomings. In a companion paper, the isotopic differences between models are interpreted in terms of biases in the representation of processes controlling humidity. [less ▲]

Detailed reference viewed: 69 (5 ULg)