Patent application number | Description | Published |
20100200510 | PROCESS FOR THE BENEFICIATION OF ORES BY MEANS OF HYDROPHOBIC SURFACES - The present invention relates to a process for separating at least one hydrophobic material from a mixture comprising this at least one hydrophobic material and at least one hydrophilic material, which comprises the steps:
| 08-12-2010 |
20100300941 | PROCESSING RICH ORES USING MAGNETIC PARTICLES - The present invention relates to a process for separating at least one first material from a mixture comprising this at least one first material and at least one second material, which comprises the following steps:
| 12-02-2010 |
20100307982 | MAGNETIC SEPARATION OF SUBSTANCES ON THE BASIS OF THE DIFFERENT SURFACE CHARGES THEREOF - The present invention relates to a process for separating at least one first material from a mixture comprising this at least one first material and at least one second material, which comprises the steps:
| 12-09-2010 |
20110000826 | METHOD AND DEVICE FOR EXTRACTING NON-MAGNETIC ORES - In a device and a method for extracting non-magnetic ores from a pulp comprising non-magnetic ore particles and having a solid fraction of at least 30 mass percent, the pulp flows continuously through a reactor in the direction of flow and magnetic or magnetizable magnet particles that form ore magnetic particle agglomerations with the non-magnetic ore particles are added to said pulp. The ore magnetic particle agglomerations are moved by a magnetic field into an accumulation range of the reactor, and are then discharged out of reactor range and separated into ore and magnetic particles. In a device and a method, the separated magnetic particles are treated, in particular hydrophobized, such that during a new interaction with non-magnetic ore particles, new ore magnetic particle agglomerations are formed. Accordingly, a high yield of ores can be obtained and the mine can be operated in an economical and environmentally friendly manner. | 01-06-2011 |
20110020170 | METAL NANOPARTICLES STABILIZED WITH DERIVATIZED POLYETHYLENEIMINES OR POLYVINYLAMINES - The invention relates to metal nanoparticles and a process for the preparation thereof, in which a metal salt solution is reduced with a reducing agent in the presence of the derivatized polyethyleneimines or polyvinylamines. Metal salt solutions of two or more different metals can be reduced simultaneously or in succession, metal nanoparticles comprising two or more different metals being obtained. Preferred metals are silver, palladium, and platinum. Suitable reducing agents are, for example, formic acid, formaldehyde, diethanolamine, 5-pentenoic acid and sodium borohydride. Silver can be used in the form of silver oxide and/or silver nitrate, palladium in the form of alkali metal tetrachloropalladate or palladium(II) nitrate and platinum in the form of alkali metal tetrachloroplatinate or tetraamineplatinum(II) nitrate. | 01-27-2011 |
20110120919 | INORGANIC PARTICLES COMPRISING AN ORGANIC COATING THAT CAN BE HYDROPHILICALLY/HYDROPHOBICALLY TEMPERATURE CONTROLLED - The present invention relates to a process for separating at least one first material from a mixture comprising this at least one first material and at least one second material, which comprises the following steps:
| 05-26-2011 |
20110120954 | SELECTIVE MATERIALS SEPARATION USING MODIFIED MAGNETIC PARTICLES - The present invention relates to a process of the invention for separating at least one first material from a mixture comprising this at least one first material and at least one second material, which comprises the steps:
| 05-26-2011 |
20110127201 | MODIFIED HIMS PROCESS - The present invention relates to a process for separating at least one first material from a mixture comprising this at least one first material and at least one second material using magnetic particles with which the at least one first material agglomerates. | 06-02-2011 |
20110163278 | MODIFIED PARTICLES AND DISPERSIONS COMPRISING THESE - The present invention relates to particles which have been modified by a modifier and a dispersion medium comprising the modified particles. | 07-07-2011 |
20110229384 | CONCENTRATE QUALITY IN THE ENRICHMENT OF UG-2 PLATINUM ORE - The present invention relates to a process for separating at least one first substance from a mixture comprising this at least one first substance and at least one second substance, comprising the steps of (A) bringing the mixture comprising at least one first substance and at least one second substance into contact with at least one surface-active substance, (B) if required, addition of at least one dispersing medium to the mixture obtained in step (A) in order to obtain a dispersion, and (C) separation of the adduct of at least one first substance and at least one surface-active substance from the dispersion from step (A) or (B), for example by means of flotation, at least one additive which is either a monomolecular compound comprising amino and carboxyl groups or derivatives thereof or a polymeric compound obtainable by reaction of alkylene oxides and/or aziridines, or mixtures thereof, being added to the mixture comprising at least one first substance and at least one second substance. | 09-22-2011 |
20110240527 | ENRICHMENT OF ORES FROM MINE TAILINGS - The present invention relates to a process for separating at least one first material from a mixture comprising this at least one first material in an amount of from 0.001 to 1.0% by weight, based on the total mixture, and at least one second material, which comprises at least the following steps:
| 10-06-2011 |
20110272623 | FORMULATION OF HYDROPHOBIZED MAGNETITE - The present invention relates to a dispersion at least comprising particles comprising at least one magnetic iron oxide as component A and a solvent mixture as component B comprising (B1) 5% to 95% by weight of at least one water-miscible organic solvent LM as component B1 and (B2) 5% to 95% by weight of water as component B2, the sum of components B1 and B2 making 100% by weight, and to a method for producing a dispersion of this kind, comprising at least the steps (I) mixing particles comprising at least one magnetic iron oxide with at least one water-miscible organic solvent LM and water, (II) homogenizing the mixture from step (I), where a shearing energy of at least 2 kW/m | 11-10-2011 |
20110303772 | UTILIZATION OF THE NATURALLY OCCURING MAGNETIC CONSTITUENTS OF ORES - The present invention relates to a process for separating at least one first material from a mixture comprising this at least one first material, at least one second material and magnetic particles, which comprises the following steps (A) at least partial removal of the magnetic particles by application of a magnetic field gradient, optionally in the presence of at least one dispersing medium, to give a mixture comprising at least one first material and at least one second material and a reduced amount of magnetic particles, (B) contacting of the mixture comprising at least one first material and at least one second material from step (A) with magnetic particles so that the at least one first material and the magnetic particles agglomerate, (C) separation of the agglomeration product from the mixture from step (B) by application of a magnetic field gradient and (D) dissociation of the agglomeration product separated off in step (C) in order to obtain the at least one first material and the magnetic particles separately, and also a control and/or regulation device for a corresponding apparatus. | 12-15-2011 |
20110303773 | MAGNETIC SEPARATION OF NONFERROUS METAL ORES BY MEANS OF MULTI-STAGE CONDITIONING - The present invention relates to a process for separating at least one first material from a mixture comprising this at least one first material and at least one second material, which comprises at least the following steps:
| 12-15-2011 |
20110309003 | MAGNETIC HYDROPHOBIC AGGLOMERATES - The present invention relates to an agglomerate of at least one particle P which is hydrophobicized on the surface with at least one first surface-active substance and at least one magnetic particle MP which is hydrophobicized on the surface with at least one second surface-active substance, a process for producing it and also the use of these agglomerates. | 12-22-2011 |
20120000857 | CU-MO SEPARATION - The present invention relates to a process for separating at least one first material from a mixture comprising this at least one first material, at least one second material and at least one third material, which comprises at least the following steps:
| 01-05-2012 |
20120043537 | PROCESS FOR PRODUCING SEMICONDUCTIVE LAYERS - The present invention relates to a process for producing a layer comprising at least one semiconductive metal oxide on a substrate, comprising at least the steps of:
| 02-23-2012 |
20120058463 | HYDROPHOBIC, FUNCTIONALIZED PARTICLES - The present invention relates to a stable mixture comprising surface-modified particles which are obtained by reacting metal oxide or semimetal oxide particles with at least one compound selected from among silicon-comprising compounds bearing one, two or three alkoxy radicals and at least one solvent, at least one surface-active substance or a mixture thereof, the use of these particles in systems in which they are brought into contact with at least one solvent, where the mass ratio of solvent to modified particle is greater than 500, and also the use of these particles in agglomeration-deagglomeration cycles. | 03-08-2012 |
20120086002 | THERMALLY LABILE PRECURSOR COMPOUNDS FOR IMPROVING THE INTERPARTICULATE CONTACT SITES AND FOR FILLING THE INTERSTICES IN SEMICONDUCTIVE METAL OXIDE PARTICLE LAYERS - The present invention relates to a process for producing a layer comprising at least one semiconductive metal oxide on a substrate, comprising at least the steps of: | 04-12-2012 |
20120088306 | Method Of Assaying Noble Metals - Provided is a method of assaying noble metals in a mineral and/or ceramic matrix in the content range from 0.03 to 500 mg/kg. The method comprises dry thermal treatment of a homogenized sample in a reducing atmosphere, extraction in an oxidizing medium, and atomic spectrometric quantification of the noble metals by means of ICP-QMS. | 04-12-2012 |
20120132032 | MAGNETIC RECOVERY OF VALUABLES FROM SLAG MATERIAL - The present invention relates to a process for the separation of at least one metal from a slag, comprising that at least one metal and further components, comprising at least step (A) grinding the slag, (B) if appropriate, contacting the ground slag of step (A) with at least one surface-active substance and/or at least one magnetic particle, if appropriate in the presence of at least one dispersant, resulting in formation of agglomerates of the at least one metal and the at least one magnetic particle, (C) if appropriate, addition of at least one dispersant to the mixture obtained in step (B) to give a dispersion having a suitable concentration, and (D) separation of the agglomerates from the mixture of step (B) or (C) by application of a magnetic field, and to the use of at least one magnetic particle for the separation of slag. | 05-31-2012 |
20120189512 | METHOD FOR CONTINUOUS MAGNETIC ORE SEPARATION AND/OR DRESSING AND RELATED SYSTEM - A method for magnetic ore separation and/or dressing is provided, in which metalliferous recoverable materials are separated from conveyed metalliferous ore rock. The method may include producing a pulp including metalliferous recoverable material, executing a hydrophobizing reaction of recoverable material in the pulp, synthesizing a hydrophobized, magnetizable material in liquid suspension and adding this suspension to the pulp, causing an agglomeration reaction between hydrophobized magnetizable material and hydrophobized recoverable material to form magnetizable agglomerates in the pulp, separating the magnetizable agglomerates from the pulp, mixing separation products containing the agglomerates with a non-polar liquid insoluble in water and decomposing the agglomerates in the non-polar liquid into magnetizable material and recoverable material, separating the magnetizable material from the recoverable material, and removing moisture from the separation portion containing the recoverable material of the second separation stage to synthesize the recoverable material. | 07-26-2012 |
20120228413 | METHOD OF INCREASING THE EFFICIENCY IN AN ORE SEPARATION PROCESS BY MEANS OF HYDROPHOBIC MAGNETIC PARTICLES BY TARGETED INPUT OF MECHANICAL ENERGY - The present invention relates to a process for separating at least one first material from a mixture comprising this at least one first material and at least one second material, which comprises the following steps (A) contacting of the mixture comprising at least one first material and at least one second material with at least one magnetic particle in the presence of at least one dispersion medium so that the at least one first material and the at least one magnetic particle agglomerate, (B) if appropriate, addition of further dispersion medium to the dispersion obtained in step (A), (C) separation of the agglomerate from step (A) or (B) from the mixture by application of a magnetic field, (D) and dissociation of the agglomerate separated off in step (C) in order to obtain the at least one first material and the at least one magnetic particle separately, with an energy input of at least 10 kW/m | 09-13-2012 |
20120263633 | Metal Oxide Support Material Containing Nanoscaled Iron-Platinum Group Metal Particles - Described is a metal oxide support material nanoscaled iron-platinum group metal particles having a particle size in the range of 0.5 to 10 nm, wherein at least 70% of all nanoscaled iron-platinum group metal particles are located on an outside surface layer of the metal oxide support material, and wherein the outside surface layer has an average volume of less than 50% based on the total volume of the metal oxide support material. | 10-18-2012 |