Lepers
Jean-Christophe Lepers, Ottignies BE
Patent application number | Description | Published |
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20090203868 | PROCESS FOR THE PURIFICATION OF VINYL CHLORIDE POLYMERS (PVC) FROM HEAVY METALS - Process for the purification of a vinyl chloride polymer (PVC) comprising at least one compound of a heavy metal, according to which: (a) the PVC is dissolved in a solvent; (b) the solution is treated with at least one additive capable of adsorbing or of forming complexes with the compound of the heavy metal; (c) the solution treated is subjected to centrifuging, so as to precipitate the adsorbed or complexed compound of the heavy metal; and (d) the precipitate is separated from the PVC solution. | 08-13-2009 |
20100179292 | Method For Recovering A Polymer From A Liquid Medium - Method for recovering a polymer from a liquid medium ( | 07-15-2010 |
20100305223 | Process for recovering a polymer from a solution - Process for recovering a polymer by injection of steam, and optionally liquid water, into a solution of this polymer comprising a polar aprotic organic solvent (PAOS) that has an azeotrope with water and an apolar organic compound that is miscible with the PAOS and immiscible with water and that acts as a phase separation agent (PSA), the boiling point of which is below that of the water/PAOS azeotrope, the amount of steam injected being sufficient to give rise to the substantial removal of the PSA via stripping and that of the PAOS via azeotropic distillation, and the total amount of water being sufficient to give rise to the precipitation of the polymer, this process being characterized in that the polymer solution also comprises an alcohol, at least during the precipitation of the polymer. | 12-02-2010 |
Joachim Lepers, Rosenheim DE
Patent application number | Description | Published |
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20100236245 | Gas Turbine Combustion System - A gas turbine combustion system has a combustion system wall delimiting a flow path for hot and pressurized combustion gas and at least one resonator with a resonator volume. The resonator volume is delimited by resonator walls, where one of the resonator walls is located adjacent to or is formed by the combustion system wall. The resonator has at least one cooling fluid supply opening which is open towards a cooling fluid source. It further has a neck opening which is open towards the flow path and which is implemented in the form of a neck slot. | 09-23-2010 |
Joachim Lepers, Dusseldorf DE
Patent application number | Description | Published |
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20090301097 | Method and Device for Regulating the Operating Line of a Gas Turbine Combustion Chamber - A regulating device for regulating the course of a gas turbine plant has at least one sensor for sensing a measurement variable and for outputting a measurement signal which represents the measurement variable; at least one adjusting system for influencing air and/or fuel supply to a combustion chamber of the gas turbine plant on the basis of a correcting variable; and a regulator connected to the at least one sensor so as to receive the measurement variable and to the at least one adjusting system for outputting the correcting variable, the regulator being designed to determine the correcting variable on the basis of the measurement variable received and its deviation from a pilot variable. At least one sensor is designed to sense the variation in time of at least one burner or combustion chamber parameter as measurement variable. | 12-10-2009 |