Abstract:
Die vorliegende Erfindung betrifft ein Verfahren zum Abtrennen wenigstens eines ersten Stoffes aus einer Mischung enthaltend diesen wenigstens einen ersten Stoff, wenigstens einen zweiten Stoff und magnetische Partikel, umfassend die folgenden Schritte (A) wenigstens teilweises Abtrennen der magnetischen Partikel durch Anlegen eines magnetischen Feldgradienten, gegebenenfalls in Gegenwart wenigstens eines Dispersionsmittels, um eine Mischung enthaltend wenigstens einen ersten Stoff und wenigstens einen zweiten Stoff und einer verringerten Menge an magnetischen Partikeln zu erhalten, (B) Inkontaktbringen der Mischung enthaltend wenigstens einen ersten Stoff und wenigstens einen zweiten Stoff aus Schritt (A) mit magnetischen Partikeln, so dass sich der wenigstens eine erste Stoff und die magnetischen Partikel anlagern, (C) Abtrennen des Anlagerungsproduktes aus der Mischung aus Schritt (B) durch Anlegen eines magnetischen Feldgradienten und (D) Spalten des abgetrennten Anlagerungsproduktes aus Schritt (C), um den wenigstens einen ersten Stoff und die magnetischen Partikel separat zu erhalten, sowie eine Steuer- und/oder Regeleinrichtung für eine entsprechende Vorrichtung.
Abstract:
Method of separation that uses at least one organic chemical reaction to alter the molecular structure of a substance or substances (102) so that a mechanical method of separation can be used to cause the separation of one or more substances from one or a group of substances(104). The organic chemical reaction alters the molecular structure by adding at least one atom to the molecular structure or by subtracting at least one atom from the molecular structure. The mechanical method of separation uses differing physical characteristics of substances to physically change the place or position of substances to remove or isolate the substances from a combination or a mixture absent any chemical reaction. The organic chemical reaction and the mechanical method of separation are used in combination to cause the separation of substances that otherwise could not be separated by the mechanical method of separation alone.
Abstract:
A method is provided for separating superalloy metal powder from contaminants, such as process-produced contaminants, by enhancing the magnetic properties thereof in a carburizing atmosphere followed by magnetic separation of the contaminants from the superalloy metal powder to thereby enhance the concentration of the contaminants. Heating or mechanical agitation or both are employed to resist agglomeration of the metal powder before magnetic separation thereof from the contaminants. Certain preferred times and temperatures are disclosed.
Abstract:
The present invention relates to a method for recovering rare earth metals from waste sulphate materials, such as waste gypsum, which is a known secondary resource of rare earth metals and widely present e.g. in areas, where industrial phosphate production takes place. The present invention combines sulphate reduction treatment, such as bioreduction with sulphate reducing bacteria, and magnetic separation, which is based on an exceptionally high magnetic susceptibility of rare earth compounds compared to e.g. calcium compounds in such reductively pretreated gypsum precipitate.
Abstract:
The topic of this invention is a procedure for the magnetic separation of yeast biomass from sparkling wine using magnetic particles. The procedure will replace the time-consuming and expensive classic procedure. The classic procedure is based on manual rotation and simultaneous tilting of the bottles from the horizontal to the vertical position with the bottle neck facing down (remuage). For the classic procedure to be completed, approximately 60 days of manual labour are needed to sediment the used yeast biomass in the bottle neck. When the sediment is in the bottle neck, it is removed by freezing and expelled from the bottle during disgorgement. The application of the magnetic particles, which are adsorbed onto the yeast cells needed for the secondary fermentation, and/or on the used yeast biomass after the secondary fermentation, makes the yeast biomass responsive to the magnetic field and thus enables the magnetic separation. The biomass with magnetic particles absorbed onto its surfaces is separated into the bottle neck using an external magnetic field in approximately 15 minutes, whereas the subsequent procedure of purification for the yeast biomass from the wine remains the same as in the classic champagne procedure, including the freezing of the sediment and its expulsion from the bottle during disgorgement.
Abstract:
Die Erfindung betrifft ein Verfahren, welches magnetische ionische Flüssigkeiten zur flüssig-flüssig, flüssig-fest oder flüssig-gasförmig Extraktion einsetzt, wobei die Trennung der Phasen in einem Magnetfeld stattfindet.
Abstract:
A method is provided for extracting and purifying components of biological samples with a two-step process for elution and neutralization of the components from the sample. The separate elution and neutralization steps use adjustment of the buffer pH to improve extraction and purification of the desired components.
Abstract:
The invention relates to a process for separating a dispersed phase from a continuous phase comprising the steps of i) contacting said phases with an effective amount of nanoparticles; ii) applying a magnetic field gradient to the obtained system; iii) separating the obtained phases wherein said nanoparticles are of the core shell type, said core consists of a metal or alloy having soft magnetic properties and said shell contains a graphene layers which are optionally functionalized; to new nanoparticles and method of manufacturing such nanoparticles.
Abstract:
A system for processing red mud comprising: a first heating section controlled to heat red mud to a first temperature; a second heating section controlled to heat the red mud to a second temperature lower than the first temperature; a crusher configured to grind the red mud to a predetermined particle size; and one or more separators for physically extracting at least iron and aluminum from the red mud.
Abstract:
A method of treating non-magnetic iron-bearing material to form an iron-rich component that is separable from a gangue-rich component is disclosed. The method comprises treating the iron-bearing material by roasting the material under reducing conditions which cause (a) formation of separate iron-rich and a gangue-rich components and (b) the iron-rich component to become magnetic. Also disclosed is a method of preparing iron-bearing feedstock for a metallurgical process. This method comprises the aforementioned treatment method and further comprises reducing the size of the treated iron-bearing material to a particle size that enables dry, magnetic separation of the iron-rich component from the gangue-rich component and magnetically separating the iron-rich component from the gangue-rich component.