Mol, Belgium
Mol, Belgium

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Provided herein are filtration membranes for water treatment, and methods for preventing fouling of such membranes. The method described herein comprises grafting the membrane surface with an organic moiety, by reacting the surface with an organometallic reagent, a phosphonate, a phosphinate, or an organosilane.


A method is for the simultaneous identification of one or more chemical compounds contained in a sample, from an analytical measurement of a pool of two or more of the samples. A measured intensity of a first and second signal is representative of an abundance of respectively the first and second chemical compound in the first sample, and a measured intensity of a third and fourth second signal is representative of an abundance of respectively a third and fourth chemical compound in the second sample. The first and third, and the second and fourth compound may be the same or different. The signal intensities are organized in a matrix a_(ij )of m columns and n rows, in which n is 2 and corresponds to the number of chemical compounds in the pool, and m2 and corresponds to the number of samples in the pool.


Patent
Vito Nv | Date: 2017-01-11

The invention pertains to a method for transforming a set of spectral images, the method comprising: dividing the images in said set in identically arranged areas; for each of said areas, calculating a predetermined characteristic across said set of images; and, for each of said images, renormalizing intensity values in each of said areas in function of said predetermined characteristic of said area. The invention also pertains to a corresponding computer program product and a corresponding image processing system.


Patent
Vito Nv and University of Antwerp | Date: 2017-04-19

the present invention provides a method for the selective recovery of a metal of interest, such as Cr, from metal-containing slag material via a one-step oxidative alkaline leaching process wherein the waste material is contacted with an alkaline leaching solution comprising an alkali metal hydroxide and an alkali metal or alkaline earth metal hypochlorite whereby simultaneously (i) the metal (Cr) is leached from the metal-containing slag and (ii) an aqueous alkaline leach liquor comprising the metal(s) of interest (Cr) is obtained. This way, the valuable metals can be recovered from this waste material and, at the same time, the environmental impact of these waste materials is reduced and their recyclability is improved by removal of the detrimental metal(s).


The present invention relates to a method for the simultaneous identification of one or more chemical compounds contained in a sample, from an analytical measurement of a pool of two or more of the said samples, wherein a measured intensity of a first and second signal is representative for an abundance of respectively the first and second chemical compound in the first sample, and a measured intensity of a third and fourth second signal is representative for an abundance of respectively a third and fourth chemical compound in the second sample, wherein respectively the first and third, and the second and fourth compound may be the same or different, wherein the signal intensities are organized in a matrix aij of m columns and n rows, wherein n is 2 and corresponds to the number of chemical compounds in the pool, wherein m 2 and corresponds to the number of samples in the pool, wherein aij corresponds to a signal intensity measured for compound i present in sample j, (1) wherein: (2) and : (3).


Patent
ThyssenKrupp and Vito Nv | Date: 2016-07-08

A method of manufacturing a composite sheet wherein the composite sheet includes at least two outer metal layers and at least one intermediate polymer layer wherein the polymer layer comprises a thermoplastic polymer. The method steps include providing at least a first and a second metal substrate and at least one intermediate polymer layer; coating at least one of the metal substrates with an adhesion promoter layer by plasma coating, wherein plasma coating includes: providing a process gas, generating a plasma, injecting a precursor for providing the adhesion promoter layer into the generated plasma or plasma afterglow, moving or placing the at least one metal strip into the generated plasma or plasma afterglow and depositing a plasma polymerized adhesion promoter layer on the surface of inner side of the metal substrate; and laminating the intermediate polymer layer and the two outer metal layers to build a composite material.


The present invention relates to an electrochemical process for isolating from at least one water soluble precursor compound comprising a metal or a metalloid element or two or more thereof having a positive valence, a reaction product of the metal or metalloid element or two or more thereof, wherein the water soluble precursor compound is supplied to a water based catholyte contained in a cathode compartment of an electrochemical cell containing a cathode with an electrochemically active surface in contact with the catholyte, wherein the cathode is subjected to an electric potential, which is chosen such as to cause reduction of an oxidant gas present at the cathode to one or more corresponding peroxide, ionic and/or radical species capable of reacting with the metal or metalloid element, and to cause conversion of the reduced oxidant gas into a reaction product comprising a compound of the metal or metalloid element or two or more thereof and the peroxide, ionic and/or radical species, in particular into nano particles of the reaction product.


Patent
ThyssenKrupp and Vito Nv | Date: 2015-07-22

The invention relates to a method of manufacturing a composite sheet, in particular a sandwich sheet, wherein the composite sheet comprises at least two outer metal layers (1,2) and at least one intermediate polymer layer (3) wherein the polymer layer comprises a thermoplastic polymer. The first aspect of the present invention by a method for manufacturing a composite sheet, in particular a sandwich sheet comprising the steps of:- providing at least a first and a second metal substrate for providing the outer metal layers (1,2) and at least one intermediate polymer layer (3);- coating at least one of said metal substrates with an adhesion promoter layer by plasma coating (4) at the inner side of the at least one metal substrate, wherein the inner side of the at least one metal substrate has contact with the at least one intermediate polymer layer, wherein plasma coating includes: providing a process gas, generating a plasma, injecting a precursor for providing the adhesion promoter layer into the generated plasma or plasma afterglow, moving or placing the at least one metal strip into the generated plasma or plasma afterglow and depositing at least in parts a plasma polymerized adhesion promoter layer on the surface of inner side of the at least one metal substrate; and- laminating the at least one intermediate polymer layer and the two outer metal layers to build a composite material (5).


Patent
Vito Nv | Date: 2014-08-27

A process for manufacturing a gas diffusion electrode comprising an electrochemically active layer, a water-repellent layer and an integrated current collector, said process comprising the steps of: (i) preparing said electrochemically active layer comprising an electrically conductive powder and a first binder; (ii) preparing a second layer comprising a pore-forming agent and particles of a hydrophobic material and/or a second binder on said electrochemically active layer to provide a laminate; (iii) assembling said electrochemically active layer, said second layer and said current collector such that said electrochemically active layer is sandwiched between said current collector and said second layer; and (iv) rendering said second layer water repellent by realising porosity therein, thereby providing said gas diffusion electrode; a gas diffusion electrode obtainable by said process; a membrane assembly comprising at least one of said gas diffusion electrodes; a method of manufacturing a membrane assembly comprising said membrane sandwiched between two electrodes at least one of which is said gas diffusion electrode, wherein said method comprises: the step of casting said membrane electrode assembly in two steps; the use of said gas diffusion electrode in any cell operating in galvanic or electrolytic mode; and a process for manufacturing a water repellent layer of said gas diffusion electrode, said process comprising the steps of: (a) mixing a pore forming agent with particles of a hydrophobic material and/or a second binder to form a second mixture; (b) pressing the second mixture into a homogeneous cake; and (c) reducing the cake in thickness by at least two passes through a calendaring machine to produce the second layer on the electrochemically active layer.


Patent
Vito Nv | Date: 2014-02-26

The present invention relates to a mesh-shaped, porous electric current density distributor for use with an electrode, the current density distributor being adapted for providing electric current to an active layer of the electrode, which active layer is provided to contact a face of the current density distributor, wherein the current density distributor comprises a porous mesh having a plurality of electrically conductive paths, wherein at least part of the electrically conductive paths extend along a direction of major current flow over the current density distributor. The porous mesh comprises in a direction crosswise to the direction of major electric current flow, a plurality of first paths of an electric insulator. The current carrying capacity of the current density distributor in crosswise direction to the major current flow over the current density distributor is smaller than the current carrying capacity in the direction along the major current flow over the current density distributor.

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