Abstract: The present disclosure relates to a nanofiltration membrane and a method of manufacturing a nanofiltration membrane. The method includes providing a support structure having a first mesoporous layer made of TiO2 and/or ZrO2 and a second porous layer adjacent to the mesoporous layer made of aluminum oxide. The method further includes grafting an anchoring group within pores of the first mesoporous layer, wherein the second layer is inert to the grafting step. An initiator for a surface-initiated atom transfer radical polymerization (SI-ATRP) reaction is covalently bonded to the anchoring group. The support structure is impregnated with a monomer and a solvent, and a polymerization reaction is performed, which includes passing a catalyst through the mesoporous layer, the monomer being configured to start the polymerization reaction by grafting from the initiator in the presence of the catalyst.

Abstract: Disclosed is a process for carrying out a cyclization reaction, a polymerization reaction, an enzymatic reaction showing substrate inhibition, an enzymatic reaction showing product inhibition, a reaction showing precipitation of the substrate or of a reactant, the process comprising the steps of a) diluting a fresh substrate with solvent to form a diluted substrate-solvent mixture, and supplying this mixture to a reactor, b) causing the reaction medium in the reactor to react, c) discharging reaction mixture comprising reaction product, solvent, and substrate that has not reacted, to a first filtration membrane which is permeable to the solvent and impermeable to the substrate and to the catalyst or at least one of the reactants, d) returning solvent from the permeate side of the first membrane to dilute the fresh substrate, and e) returning retentate comprising substrate which has not reacted, from the first filtration membrane to the reactor.

Abstract: The present invention relates to novel pervaporation membranes comprising a porous support layer upon which a thin coating is applied. More specifically, the present invention provides pervaporation membranes with an improved performance by applying an aggregate filled PTMSP coating with a maximal thickness of 25 ?m onto the porous support. The present invention further relates to methods of the manufacturing of such pervaporation membranes.

Abstract: Disclosed is a process for carrying out a cyclisation reaction, a polymerization reaction, an enzymatic reaction showing substrate inhibition, an enzymatic reaction showing product inhibition, a reaction showing precipitation of the substrate or of a reactant, the process comprising the steps of a) diluting a fresh substrate with solvent to form a diluted substrate-solvent mixture, and supplying this mixture to a reactor, b) causing the reaction medium in the reactor to react, c) discharging reaction mixture comprising reaction product, solvent, and substrate that has not reacted, to a first filtration membrane which is permeable to the solvent and impermeable to the substrate and to the catalyst or at least one of the reactants, d) returning solvent from the permeate side of the first membrane to dilute the fresh substrate, and e) returning retentate comprising substrate which has not reacted, from the first filtration membrane to the reactor.

Abstract: The present invention relates to novel pervaporation membranes comprising a porous support layer upon which a thin coating is applied. More specifically, the present invention provides pervaporation membranes with an improved performance by applying an aggregate filled PTMSP coating with a maximal thickness of 25 ?m onto the porous support. The present invention further relates to methods of the manufacturing of such pervaporation membranes.

Abstract: The present invention provides a testing system allowing the simultaneous comparative evaluation of the behavior in a membrane process of two or more selected membranes (4). In a preferred embodiment said system allows the control of the hydrodynamics of the feeding liquid by means of stirrers (13).

Abstract: The present invention provides a method for improving the performance of polyimide membranes as used in solvent-resistant nanofiltration. More specifically the method of the present invention allows to improve the solvent stability of the polyimide membranes to solvents or solvent mixtures that would dissolve polyimide under the conditions applied during the filtration, such as dimethylforrnamide (DMF), N-methylpyrrolidinone (NMP), dimethylacetamide (DMAC), tetrahydrofuran (THF), y-butyrolacton (GBL), dimethylsulphoxide (DMSO) and chlorinated solvents.

Abstract: The present invention provides a testing system allowing the simultaneous comparative evaluation of the behaviour in a membrane process of two or more selected membranes (4). In a preferred embodiment said system allows the control of the hydrodynamics of the feeding liquid by means of stirrers (13).