Distillation: processes, separatory inventions 09/08

20080230368 - Process for the purification of lactams: A method and a plant are disclosed for purifying lactams, particularly lactams obtained by cyclizing hydrolysis of aminonitrile. The purification of ε-caprolactam obtained by cyclizing hydrolysis of aminocapronitrile is described which includes eliminating the ammonia from the reaction medium of the hydrolysis, then recovering the lactam from said medium in... Agent: Buchanan, Ingersoll & Rooney PC

20080230369 - Propylene oxide recovery process: Product propylene oxide in a reaction mixture resulting from the reaction of propylene, oxygen and hydrogen or from the reaction of propylene and hydrogen peroxide is separated from propylene and/or propane by extractive distillation using methanol and/or water extractive distillation solvent.... Agent: Lyondellbasell Industries

20080230370 - Vacuum distillation method and vacuum distillation apparatus: An objective of the present invention is to suppress bumping in the distillation still so as to collect a high purity solvent containing no impurities. A solvent vapor valve 21 is disposed in a solvent vapor withdrawal conduit 20 through which solvent vapor is transferred from inside the distillation still... Agent: Oliff & Berridge, PLC

20080223711 - Industrial process for production of aromatic carbonate: It is an object of the present invention to provide, in the case of producing an aromatic carbonate through a reactive distillation system using a continuous multi-stage distillation column from a dialkyl carbonate and an aromatic monohydroxy compound, a specific process that enables the aromatic carbonate to be produced stably... Agent: Birch Stewart Kolasch & Birch

20080217158 - Method for obtaining cyclododecatriene by evaporation: Process for recovering cyclododecatriene (CDT) from a solution comprising CDT and high boilers such as deactivated catalyst and polymers, which comprises feeding the solution into a preheater and heating it, subsequently depressurizing it through a downstream pressure maintenance device and feeding the resulting two-phase mixture into a helical tube evaporator... Agent: Oblon, Spivak, Mcclelland Maier & Neustadt, P.c.

20080210540 - Separation and dewatering of organic solvents by integrating distillation and membrane separation operations: The present invention provides a system and a process for the recovery of an organic solvent from a mixture of an organic solvent and water. The process comprises subjecting an organic solvent/water mixture to a distillation system whereby a vapor is produced. The output from the distillation process passes through... Agent: Michael Best & Friedrich LLP

20080210541 - Distillation process: The present invention relates to an improved process of distilling fermented mash, wherein one or more amylases and/or proteases are added to the fermentation mash before or during distillation.... Agent: Novozymes North America, Inc.