Search Results - "Févotte, Gilles"
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A method of characteristics for solving population balance equations (PBE) describing the adsorption of impurities during crystallization processes
Published in Chemical engineering science (15-05-2010)“…Possible hindering effects of impurities on the crystal growth were shown to take place because of the adsorption of impurity species on the crystal surface…”
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2
New perspectives for the on-line monitoring of pharmaceutical crystallization processes using in situ infrared spectroscopy
Published in International journal of pharmaceutics (25-07-2002)“…Chemists and engineers involved in the industrial production of solid drugs have to deal with difficult new challenges, including the on-line mastery of the…”
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3
Advanced Calibration Strategy for in Situ Quantitative Monitoring of Phase Transition Processes in Suspensions Using FT-Raman Spectroscopy
Published in Analytical chemistry (Washington) (01-09-2008)“…There is an increasing interest in using Raman spectroscopy to identify polymorphic forms and monitor phase changes in pharmaceutical products for quality…”
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4
A population balance model of the solution-mediated phase transition of citric acid
Published in AIChE journal (01-10-2007)“…The Solvent‐Mediated Anhydrous to Monohydrate Phase Transition (SMPT) of citric acid in water was monitored using in situ Raman spectroscopy and image…”
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5
Crystallization of zinc lactate in presence of malic acid
Published in Journal of crystal growth (15-09-2010)“…The influence of malic acid, which acts as an impurity on the cooling crystallization of zinc lactate is investigated in this paper by monitoring the relative…”
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6
Recent advances in the monitoring, modelling and control of crystallization systems
Published in Chemical engineering research & design (01-10-2013)“…•Recent trends in population balance modelling of crystallization are described.•Overview of monitoring systems with emphasis on image analysis is…”
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7
On the use of process analytical technologies and population balance equations for the estimation of crystallization kinetics. A case study
Published in AIChE journal (01-09-2012)“…The batch cooling solution crystallization of ammonium oxalate was performed in water at various constant cooling rates. Measurements of the solute…”
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Monitoring and Control of Free-Radical Polymerizations Using Near-Infrared Spectroscopy
Published in Industrial & engineering chemistry research (10-11-2004)“…A nonlinear geometric control is used to control the concentration of the monomer in solution polymerization processes. The concentration of the monomer is an…”
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Journal Article Conference Proceeding -
9
Monitoring industrial pharmaceutical crystallization processes using acoustic emission in pure and impure media
Published in International journal of pharmaceutics (15-12-2012)“…Acoustic emission (AE) which has been successfully applied for monitoring a rather wide variety of solids elaboration processes was almost never evaluated in…”
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10
Control of polymer molecular weight using near infrared spectroscopy
Published in AIChE journal (01-03-2004)“…Near Infrared spectroscopy is used to control a polymerization reactor in order to produce solution polymers with well‐defined molecular weight. A model for…”
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11
Batch Cooling Solution Crystallization of Ammonium Oxalate in the Presence of Impurities: Study of Solubility, Supersaturation, and Steady-State Inhibition
Published in Crystal growth & design (03-07-2013)“…Compared with equilibrium data in pure solvent, variations of solubility are frequently observed in the presence of dissolved impurities. It is also well-known…”
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12
Acoustic emission during the solvent mediated cooling crystallization of citric acid
Published in Powder technology (01-11-2016)“…The potential of Acoustic Emission (AE) for controlling crystallization processes is investigated. The sensing technology is successfully applied to monitor…”
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13
Biobjective control of emulsion polymerizations: control of the polymer composition and the concentration of monomer in the polymer particles
Published in Chemical engineering journal (Lausanne, Switzerland : 1996) (2004)“…A decoupled control law is proposed to control the concentration of monomer in the polymer particles in emulsion homopolymerization, copolymerization and…”
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14
Polymer Composition Control in Emulsion Co- and Terpolymerizations
Published in Industrial & engineering chemistry research (06-03-2002)“…A new strategy for composition control in emulsion copolymerization and terpolymerization processes, based on the use of nonlinear estimation and control…”
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15
Comparison between approaches for the experimental determination of metastable zone width: A case study of the batch cooling crystallization of ammonium oxalate in water
Published in Journal of crystal growth (2012)“…In situ ATR-FTIR spectroscopy coupled with in situ image acquisition measurements were used to determine the solubility curve and to investigate the metastable…”
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16
Crystallization of Monohydrate Citric Acid. 1. In Situ Monitoring through the Joint Use of Raman Spectroscopy and Image Analysis
Published in Crystal growth & design (01-10-2007)“…Seeded batch crystallizations of monohydrate citric acid were performed under isothermal conditions (15 °C). Continuous monitoring of the overall solid…”
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17
Monitoring of emulsion polymerisations: A study of reaction kinetics in the presence of secondary nucleation
Published in Canadian journal of chemical engineering (01-02-2002)“…A non‐linear state estimator that provides on‐line information on residual monomer concentration and radical concentration is experimentally validated under…”
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18
Development and Monitoring of a Continuous Polyurethane Pilot Reactor
Published in Chemical engineering & technology (01-11-2010)“…The transition from batch to continuous polyurethane (PU) process is considered for process intensification. An integrated methodological and technological…”
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19
Comparison between approaches for the experimental determination of metastable zone width: A case study of the batch cooling crystallization of ammonium oxalate in water
Published in Journal of crystal growth (01-03-2012)“…In situ ATR-FTIR spectroscopy coupled with in situ image acquisition measurements were used to determine the solubility curve and to investigate the metastable…”
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Journal Article Conference Proceeding -
20
On Multiple Nucleation Bursts During Solution Crystallization in Pure and Impure Solvent
Published in Crystal growth & design (03-07-2012)“…It is widely accepted that during batch cooling crystallization processes, uncontrolled cooling can produce multiple nucleation events which have detrimental…”
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