Korea Research Institute of Chemical Technology

Centre National De La Recherche Scientifique

UniversitÉ De Versailles—saint-Quentin-En-Yvelines

Université De Caen Basse Normandie

Centre National De La Recherche Scientifique-cnrs

Young-Kyu Hwang

Jong-San Chang

Christian Serre

Sung-Hwa Jhung

Jong-Min Lee

Gérard Ferey

Patricia Horcajada-Cortes

Gerard Ferey

Marco Daturi

Philip Leslie Llewellyn

Jung-Ho Lee

Alexandre Vimont

Min-Hee Jung

G Ferey

C Serre

Chang Jong-San

Philip Llewellyn

The present invention relates to methods for absorbing and/or desorbing water by contacting water with hybrid inorganic-organic material having high surface area, and pores with the size of molecules or nanometers. More specifically, the water adsorbent has facile adsorption-desorption even below 100&#xb0; C., having high adsorption capacity, and having high desorption capacity when it is heated up to the temperature below 100&#xb0; C. The adsorbent of the present invention can be applied to a humidifier, dehumidifier, cooler and heater. The present invention also relates to a technology to control humidity using the adsorbent.

Adsorbent for water adsorption and desorption

The present invention relates to reducible porous crystalline solids, constituted of a metal-organic framework (MOF), for the separation of mixtures of molecules having different unsaturation degrees and/or a different number of unsaturations with a selectivity that can be adjusted by controlling the reduction of the MOF. The MOF solids of the present invention, after reduction, have a strong affinity for molecules containing at least one unsaturation. They can be used in various separation processes, especially those relating to hydrocarbons.

Reducible porous crystalline hybrid solid for the separation of mixtures of molecules having different degrees and/or a different number of unsaturations

The present disclosure discloses a catalyst for directly producing a lactide which is a cyclic ester used as a monomer for polylactides, and a method for directly producing a lactide using the catalyst, the method including the transesterification reaction between two molecules of an ester of lactic acid or a mixture containing the ester of lactic acid with a small amount of lactic acid and oligomer of lactic acid under an inert environment in the presence of a titanium-based catalyst or a catalyst mixture containing the titanium-based catalyst so as to produce lactide while simultaneously removing an alcohol (ROH) generated as a by-product. As compared to a conventional commercialized process, since the method for producing a lactide in accordance with the present disclosure is a novel process capable of directly producing the lactide from the ester of lactic acid, energy consumption is low and the lactide can be produced through a simple process showing a high yield while maintaining optical property (D-form or L-form optical isomer).

Catalyst for direct conversion of esters of lactic acid to lactide and the method for producing lactide using the same

The present invention relates to a synthesis method of porous hybrid inorganic-organic materials that can be applied for adsorbents, gas storages, sensors, membranes, functional thin films, catalysts, catalyst supports, encapsulating guest molecules and separation of molecules by the pore structures. More specifically, the present invention relates to the synthesis method of nanocrystalline porous hybrid inorganic-organic materials.

Preparation method of porous organic inorganic hybrid materials

Growing community of inventors

Daejeon, South Korea

Young-Kyu Hwang