J
Jean Lédion
Researcher at Arts et Métiers ParisTech
Publications - 18
Citations - 1015
Jean Lédion is an academic researcher from Arts et Métiers ParisTech. The author has contributed to research in topics: Scaling & Infrared spectroscopy. The author has an hindex of 10, co-authored 18 publications receiving 820 citations.
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Journal ArticleDOI
Transition alumina phases induced by heat treatment of boehmite: An X-ray diffraction and infrared spectroscopy study
A. Boumaza,L. Favaro,Jean Lédion,Gaël Sattonnay,J.-B. Brubach,P. Berthet,A. M. Huntz,Pascale Roy,Robert Tétot +8 more
TL;DR: In this article, the gamma, delta, theta and alpha-Al{sub 2}O{sub 3} phases, prepared by dehydration of aluminium oxihydroxide AlOOH (boehmite), were measured by XRD and IR spectroscopy on all samples.
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State of art of natural inhibitors of calcium carbonate scaling. A review article
Marie Chaussemier,Ermane Pourmohtasham,Dominique Gelus,Nathalie Pécoul,Hubert Perrot,Hubert Perrot,Jean Lédion,Hélène Cheap-Charpentier,Olivier Horner +8 more
TL;DR: A review of green antiscalants derived from petrochemicals has been reported in this article, where the efforts done those last years to obtain green inhibitors, either by using natural organic molecules or extracted fromplants were summarized.
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Comparative performance of polyepoxysuccinic acid and polyaspartic acid on scaling inhibition by static and rapid controlled precipitation methods
TL;DR: In this article, the anti-scaling performance of polyepoxysuccinic acid and polyaspartic acid was compared using the static and rapid controlled precipitation methods and the results showed that PESA performance exceeded that of PASP.
Journal ArticleDOI
Experimental and ab initio infrared study of χ-, κ‐ and α-aluminas formed from gibbsite
Laurent Favaro,A. Boumaza,Pascale Roy,Jean Lédion,Gaël Sattonnay,Jean Blaise Brubach,Anne Marie Huntz,Robert Tétot +7 more
TL;DR: In this article, the structural transition of transition alumina was investigated using infrared spectroscopy (IR) measurements and ab initio simulations, and the results showed a good general agreement with the observed IR spectra for this phase.
Journal ArticleDOI
Application of the Fast Controlled Precipitation method to assess the scale-forming ability of raw river waters
Guillaume Gauthier,Yanjia Chao,Olivier Horner,Olga Alos-Ramos,Franck Hui,Jean Lédion,Hubert Perrot +6 more
TL;DR: The Fast Controlled Precipitation (FCP) method is a non-electrochemical method which consists in CO2 degassing from water by a moderated agitation as mentioned in this paper.