The invention relates to a method for detaching and recovering gold particles (12), in particular in the form of flakes, from an object (6) to be treated comprising an external or outer layer made of gold deposited on a substrate, the method comprising the following steps: a) treating the object (6) to be treated with an aqueous reactive solution (8) allowing solid gold particles (12) to be separated from the substrate; and b) separating the solid gold particles (12) by air bubble flotation in said aqueous reactive solution (8).
122) comprising at least one optical fibre sensor, the sensors being placed at different heights, radial distances and angular positions within the lysimeter; and f. means for recording the temperatures measured by the sensors.
The invention relates to a soil thermal-treatment device comprising: a. a microwave energy source (11, 12) configured to generate microwaves; b. a cylindrical microwave antenna (101, 102) connected to the microwave energy source and inserted substantially vertically into soil to be treated, the antenna comprising a plurality of openings for emitting the generated microwaves into the soil to be treated; c. fluid injection means (13) connected at the upper part of the antenna in order to the fluid into the soil to be treated through the openings, at the same time as the microwaves are emitted; d. at least one optical fibre temperature sensor inserted into the antenna; e. adjustable means for at least partially sealing at least a lower part of the antenna.
The invention relates to a method for the bioremediation of polluted soil (2) in the form of a mound, characterized in that the method comprises a step of injecting a shear-thinning aqueous fluid into the soil.
The invention relates to a computer-implemented method for compensating a non-linear self-potential in a time-series representative of a potential measured from a geological structure, said method comprising: receiving (41) as input (21) said time-series comprising a first component being said self-potential and a second component being an induced-potential, iteratively compensating (43) said self-potential on said time-series so as to obtain a compensated time-series representative of the induced-potential corrected from the non-linear variation of the self-potential and providing (44) as output (31) said compensated time-series (31).
G01V 3/04 - Electric or magnetic prospecting or detectingMeasuring magnetic field characteristics of the earth, e.g. declination or deviation operating with propagation of electric current using DC
G01V 3/08 - Electric or magnetic prospecting or detectingMeasuring magnetic field characteristics of the earth, e.g. declination or deviation operating with magnetic or electric fields produced or modified by objects or geological structures or by detecting devices
G01V 3/38 - Processing data, e.g. for analysis, for interpretation or for correction
6.
ELECTROMAGNETIC SYSTEM FOR GEOPHYSICAL PROSPECTING
The present disclosure relates to an electromagnetic system for geophysical prospecting, including a transmitting antenna and a receiving antenna, said transmitting antenna comprising at least one set of transmitting electromagnetic loops, said receiving antenna being formed by at least one receiving electromagnetic loop, wherein the transmitting electromagnetic loops of a same set are positioned in different planes parallel to one another.
G01V 3/10 - Electric or magnetic prospecting or detectingMeasuring magnetic field characteristics of the earth, e.g. declination or deviation operating with magnetic or electric fields produced or modified by objects or geological structures or by detecting devices using induction coils
G01V 3/17 - Electric or magnetic prospecting or detectingMeasuring magnetic field characteristics of the earth, e.g. declination or deviation specially adapted for use during transport, e.g. by a person, vehicle or boat operating with electromagnetic waves
7.
METHOD FOR RECOVERING PERMANENT MAGNETS AND VALUABLE METALS FROM HARD DISKS
The invention relates to a method for recovering NdFeB-type permanent magnets from waste electrical and electronic equipment, comprising the following successive steps: - subjecting demagnetised permanent magnets to a first magnetic separation in a 400 G drum; - recovering a first magnetic phase (1FM); - subjecting the first magnetic phase (1FM) to a first magnetic separation on an overband separator, so that a second non-magnetic phase (2FNM) resulting from the first overband magnetic separation is enriched with demagnetised magnets; and - recovering the second non-magnetic phase (2FNM).
B03C 1/247 - Magnetic separation acting directly on the substance being separated with material carried by oscillating fieldsMagnetic separation acting directly on the substance being separated with material carried by travelling fields, e.g. generated by stationary magnetic coilsEddy-current separators, e.g. sliding ramp with material carried by travelling fields obtained by a rotating magnetic drum
B03C 1/22 - Magnetic separation acting directly on the substance being separated with material carriers in the form of belts with non-movable magnets
B03C 1/005 - Pretreatment specially adapted for magnetic separation
B03C 1/033 - Component partsAuxiliary operations characterised by the magnetic circuit
H01F 1/057 - Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B
H01F 13/00 - Apparatus or processes for magnetising or demagnetising
8.
ELECTROMAGNETIC SYSTEM FOR GEOPHYSICAL PROSPECTING
The invention relates to an electromagnetic system (10) for geophysical prospecting, comprising a transmitting antenna (20) and a receiving antenna (30), said transmitting antenna (20) comprising at least one set (40) of transmitting electromagnetic loops (50), said receiving antenna (30) being formed by at least one receiving electromagnetic loop (60), wherein the transmitting electromagnetic loops (50) of the same set (40) are positioned in different planes parallel to one another.
G01V 3/10 - Electric or magnetic prospecting or detectingMeasuring magnetic field characteristics of the earth, e.g. declination or deviation operating with magnetic or electric fields produced or modified by objects or geological structures or by detecting devices using induction coils
G01V 3/17 - Electric or magnetic prospecting or detectingMeasuring magnetic field characteristics of the earth, e.g. declination or deviation specially adapted for use during transport, e.g. by a person, vehicle or boat operating with electromagnetic waves
9.
SYSTEM FOR DETECTING ON-SITE ASBESTOS PARTICLES IN BUILDING MATERIALS
CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE (France)
UNIVERSITÉ D'ORLÉANS (France)
Inventor
Duee, Cédric
Haas, Hubert
Renard, Jean-Baptiste
Abstract
System (100) for detecting on-site asbestos particles in building materials, comprising: - a means (110) for freeing asbestos particles present in the materials, - a pump (120) configured to sample solid particles freed by said means, and - a system (1) for analysing solid particles comprising: a light source configured to generate an initial light field; a main means for detecting a light field scattered by said solid particles, the main detecting means being oriented in a direction making an angle α smaller than 30° to the direction of the initial light field, which angle is called the first angle; and a complementary means for detecting the light field scattered by said solid particles, the complementary detecting means being oriented in a direction making an angle β between 45° and 90° to the direction of the initial light field, which angle is called the second angle.
The invention relates to a method for extracting rare earth elements contained in permanent magnets, which includes the steps of thermal treatment of the permanent magnet, crushing at the end of the thermal treatment in order to obtain particles with a size smaller than 2 mm, treatment by agitation of the particles in a solution containing an organic acid, and separation of the liquid phase from the solid phase.
2242232433 solution; wherein the sodium sulphate solution subsequently produced is used for the ionic dissociation step and wherein the sulphuric acid solution produced in the ionic dissociation step is used in the step of producing phopshogypsum and monocalcium phosphate monohydrate.
B01D 53/14 - Separation of gases or vapoursRecovering vapours of volatile solvents from gasesChemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases or aerosols by absorption
The present invention relates to an electrochemical measurement system (S) for monitoring a concrete structure (Cs) comprising a reinforcement bar, said system comprising: at least six electrodes (Ei) configured to be placed in contact with a surface of the concrete structure and arranged in a predefined spatial configuration; comprising at least two emitting electrodes configured to inject a plurality of electrical signals into the concrete structure and at least four receiving electrodes configured to be combined in pairs; wherein each pair of electrodes receives a plurality of electrical signals, originating from an explored zone of the concrete structure, wherein the explored zone is located beneath an axis connecting the electrodes in the pair with its depth depending on the distance between the two electrodes in the pair; an acquisition module (Ma) configured (i) to control the emitting electrodes and receiving electrode, and (ii) to acquire and store in a memory the plurality of electrical signals; a processing module (Mp) configured to calculate for each plurality of electrical signals at least one induced polarization potential response value and one apparent resistivity value, and from these values, process at least one output characteristic of the concrete structure associated to each explored zone from which the plurality of signals originates; an image reconstruction module (Mi) configured to generate an image of the distribution of the output characteristics of the concrete structure in the explored zones.
Method for processing a mixture of plastics by controlled oxidation A method for separating at least one type of plastic fragments from a mixture of plastic fragments comprising at least two different types of plastics selected from the group consisting of PP, PC, PVC, ABS, POM, PET, ABS-PS and ABS-PC; said method making it possible to obtain a fraction which is enriched with at least one of said at least two different types of plastics in relation to the proportion by weight of said at least one type of plastic in said mixture of plastic pieces; said method comprising the following steps: a) bringing into contact said mixture of plastic pieces with an aqueous solution, which is saturated or non-saturated, of potassium permanganate; b) irradiating said mixture with microwaves in the presence of said aqueous solution of potassium permanganate at an irradiation power of 0.3 to 6 kW for 0.5 to 6 minutes; c) a step of washing the mixture of plastic pieces using a solution in a mixture of sulphuric acid and hydrogen peroxide; d) a step of fractioning the mixture of plastic pieces, by floating said mixture of plastic pieces in a liquid medium, in order to obtain at least a first fraction and a second fraction; and e) a step of recovering at least one of said fractions. Figure 1.5
C08J 11/16 - Recovery or working-up of waste materials of polymers by chemically breaking down the molecular chains of polymers or breaking of crosslinks, e.g. devulcanisation by treatment with inorganic material
14.
PROCESS FOR OBTAINING CARBON-COATED MINERAL PARTICLES
Disclosed is a process for synthesizing a composite material comprising carbon-coated mineral particles obtained from a mixed organic-mineral gel. The gel comprises at least said mineral particles and a carbon precursor. The process involves a step in which the carbon precursor is subjected to a thermal treatment.
B01D 53/02 - Separation of gases or vapoursRecovering vapours of volatile solvents from gasesChemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases or aerosols by adsorption, e.g. preparative gas chromatography
B01D 53/32 - Separation of gases or vapoursRecovering vapours of volatile solvents from gasesChemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases or aerosols by electrical effects other than those provided for in group
The invention relates to a method for extracting rare earth elements contained in permanent magnets, which includes the steps of thermal treatment of the permanent magnet, crushing at the end of the thermal treatment in order to obtain particles with a size smaller than 2 mm, treatment by agitation of the particles in a solution containing an organic acid, and separation of the liquid phase from the solid phase.
41 - Education, entertainment, sporting and cultural services
Goods & Services
Education; academies [education]; coaching [training];
practical training [demonstration]; organization and
conducting of training workshops; organization and
conducting of colloquiums; organization and conducting of
conferences; organization and conducting of congresses;
organization and conducting of seminars; organization and
conducting of symposiums; training services by means of
simulators; organization and conducting of non-virtual
educational forums; organization of competitions [education
or entertainment]; organization of exhibitions for cultural
or educational purposes; club services [entertainment or
education].
41 - Education, entertainment, sporting and cultural services
Goods & Services
Education; academies [education]; coaching [training];
practical training [demonstration]; organization and
conducting of training workshops; organization and
conducting of colloquiums; organization and conducting of
conferences; organization and conducting of congresses;
organization and conducting of seminars; organization and
conducting of symposiums; training services by means of
simulators; organization and conducting of non-virtual
educational forums; organization of competitions [education
or entertainment]; organization of exhibitions for cultural
or educational purposes; club services [entertainment or
education].
19.
High-pressure and high-temperature closed geothermal exchanger for a magmatic or metamorphic formation
The invention relates to a geothermal exchanger comprising a casing containing a heat-transfer fluid with which it is in direct contact. The casing is flexible such as to be in direct contact with a wall of the borehole containing the exchanger under the effect of the pressure of the heat-transfer fluid.
F24T 10/15 - Geothermal collectors with circulation of working fluids through underground channels, the working fluids not coming into direct contact with the ground using tube assemblies suitable for insertion into boreholes in the ground, e.g. geothermal probes using bent tubesGeothermal collectors with circulation of working fluids through underground channels, the working fluids not coming into direct contact with the ground using tube assemblies suitable for insertion into boreholes in the ground, e.g. geothermal probes using tubes assembled with connectors or with return headers
F28F 21/06 - Constructions of heat-exchange apparatus characterised by the selection of particular materials of plastics material
F24T 10/17 - Geothermal collectors with circulation of working fluids through underground channels, the working fluids not coming into direct contact with the ground using tube assemblies suitable for insertion into boreholes in the ground, e.g. geothermal probes using tubes closed at one end, i.e. return-type tubes
F24T 10/13 - Geothermal collectors with circulation of working fluids through underground channels, the working fluids not coming into direct contact with the ground using tube assemblies suitable for insertion into boreholes in the ground, e.g. geothermal probes
20.
METHOD FOR EXTRACTING RARE EARTH ELEMENTS CONTAINED IN PERMANENT MAGNETS
The invention relates to a method for extracting rare earth elements contained in permanent magnets, which comprises the steps of thermal treatment of the permanent magnet, crushing at the end of the thermal treatment in order to obtain particles with a size smaller than 2 mm, treatment by agitation of the particles in a solution containing an organic acid, and separation of the liquid phase from the solid phase.
The invention relates to a geothermal exchanger comprising a casing containing a heat-transfer fluid with which it is in direct contact. The casing is flexible such as to be in direct contact with a wall of the borehole containing the exchanger under the effect of the pressure of the heat-transfer fluid.
COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES (France)
ENERTIME (France)
Inventor
Nguyen, Denis
Tauveron, Nicolas
Ayachi, Fadhel
Tartière, Thomas
Abstract
The invention relates to a system for storing energy and for producing electrical energy, including a thermal doublet comprising a first thermal store (GT1) and a second thermal store (GT2), heat exchangers (ET1, ET2) installed in each of said thermal stores (GT1, GT2), means (CIR1, CIR2) making it possible to circulate two heat-transfer fluids between heat exchangers of a thermal store having a plate heat exchanger (EP), a plate heat exchanger intended for exchanging heat between the two heat-transfer fluids, a means (PAC) for transforming electrical energy into thermal energy, and a means (TRANS) for transforming thermal energy from the heat-transfer fluid into electrical energy, which implements a thermodynamic cycle that uses a temperature difference between said thermal stores (GT1, GT2), characterised in that: said first thermal store (GT1) is based on a technique of diffusive thermal storage in a rock mass (MR) that is not under water; and said second thermal store (GT2) is a latent-heat store in an ice-water pool.
F28D 20/00 - Heat storage plants or apparatus in generalRegenerative heat-exchange apparatus not covered by groups or
F03G 7/04 - Mechanical-power-producing mechanisms, not otherwise provided for or using energy sources not otherwise provided for using pressure differences or thermal differences occurring in nature
F24J 3/08 - using geothermal heat (devices for producing mechanical power from geothermal energy F03G 4/00)
F28D 20/02 - Heat storage plants or apparatus in generalRegenerative heat-exchange apparatus not covered by groups or using latent heat
F28F 21/06 - Constructions of heat-exchange apparatus characterised by the selection of particular materials of plastics material
23.
METHOD FOR DETERMINING BATHYMETRY FROM QUASI-SYNCHRONOUS OPTICAL SATELLITE IMAGES
The invention relates to a method for determining bathymetric characteristics (H) of a water surface. Said method is characterized in that the following steps are carried out: - acquiring (ACQ), during a single satellite passage, at least two optical satellite images (11, 12) with time lag (dt), each image being made up of pixels; - determining (OND) dominant wave wavelengths (λη) and directions (θη) for each pixel by means of wavelet analysis on at least one image (11, 12); - determining (CORR) speeds (Cn, m) associated with each wavelength for each pixel using said time lag (dt), said wavelengths (λη), and said directions (θη) by means of an intercorrelation method on wavelet transforms of said optical images (11, 12), and defining (ECH) a set of speed/wavelength pairs (Cn,m; λn,m) for each pixel; and determining (BATH) said bathymetric characteristics (H) by means of a linear dispersion relation of the waves that links a depth (hn) to said speed/wavelength pairs (Cn,m; λn,m).
CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE (CNRS) (France)
UNIVERSITE D'ORLEANS (France)
Inventor
Menad, Nour-Eddine
Guignot, Sylvain
Gökalp, Iskender
Bostyn, Stéphane
Graz, Yann
Poirier, Jacques
Abstract
The method for separation of metals from electronic cards comprises a step of processing the electronic cards in an aqueous medium under supercritical conditions. The method also comprises a later step of crushing solid materials coming from the treatment under supercritical conditions.
B09B 3/00 - Destroying solid waste or transforming solid waste into something useful or harmless
A62D 3/20 - Processes for making harmful chemical substances harmless, or less harmful, by effecting a chemical change in the substances by hydropyrolysis or destructive steam gasification, e.g. using water and heat to effect chemical change
B09B 5/00 - Operations not covered by a single other subclass or by a single other group in this subclass
H05K 3/22 - Secondary treatment of printed circuits
25.
METHOD FOR DETECTING EXPANSIVE CLAYS IN A SEDIMENTARY BASIN BY SPECTROMETRIC MEASUREMENTS
Method for determining a risk of loss associated with a clay retraction-expansion effect in a target geographic zone in a sedimentary basin, by means of measurement of gamma rays emitted by natural radioelements, characterized in that the following steps are carried out: a calibration geographic zone for which losses associated with retraction-expansion effects are known is selected; an experimental correlation is estabilished between, on the one hand, a risk of loss associated with an expansive-clay retraction-expansion effect and, on the other hand, a first set of measurements of gamma rays emitted by the natural radioelements potassium (K) and thorium (Th) on the surface of said calibration geographic zone; at least one second set of measurements of gamma rays emitted by the natural radioelements potassium (K) and thorium (Th) are carried out on the surface of said target geographic zone; and a risk of loss associated with an expansive-clay retraction-expansion effect is determined in said target geographic zone, by means of said correlation and of the second set of measurements.
G01V 5/02 - Prospecting or detecting by the use of ionising radiation, e.g. of natural or induced radioactivity specially adapted for surface logging, e.g. from aircraft
G01V 5/06 - Prospecting or detecting by the use of ionising radiation, e.g. of natural or induced radioactivity specially adapted for well-logging for detecting naturally radioactive minerals
G06F 17/30 - Information retrieval; Database structures therefor
G01T 1/169 - Exploration, location of contaminated surface areas
L'AIR LIQUIDE, SOCIETE ANONYME POUR L'ETUDE ET L'EXPLOITATION DES PROCEDES GEORGES CLAUDE (France)
BRGM (France)
MILTON ROY EUROPE (France)
Inventor
Guezennec, Anne-Gwénaëlle
Ibarra, Dominique
Jaillet, Marie
Menard, Yannick
Morin, Dominique
Pubill Melsio, Anna
Savreux, Frédéric
D'Hugues, Patrick
Abstract
The invention relates to a method for the lagoon-based bioleaching of a metallic ore (1), wherein the temperature of the suspension containing the metallic ore to be bioleached, a bioleaching consortium and a nutritive substrate (3) of the microorganisms of the consortium is controlled by regulating the flows and the composition of a gas containing oxygen and optionally also CO2 injected into the suspension, the temperature of the suspension being controlled such that it can be maintained within a pre-determined range suitable for bioleaching.
The invention relates to a method for extracting lithium contained in a brine, in which: i. a first evaporation rate (T1) of the brine is defined, said rate being less than the evaporation rate enabling undesirable salts to be precipitated; ii. some of the initial brine is fed into an evaporation tank, and the concentration of the brine is controlled by stopping the evaporation when the evaporation rate of the brine reaches the first evaporation rate (T1); iii. a mixture is then formed by reinjecting the concentrated brine from the previous step into some of the initial brine; iv. steps i through iii are repeated, the initial brine portion being replaced with the mixture until a lithium-enriched brine having an evaporation rate equal to a predefined second evaporation rate (T2) is obtained; and v. precipitation of lithium contained in the lithium-enriched brine is brought about.
The invention relates to a method for capturing arsenic contained in a solution, comprising a step of bringing said solution into contact with a powder comprising hydrate particles of calcium silicate having a Ca/Si molar ratio higher than or equal to 0.8. The invention also relates to a permeable device for implementing the method according to the invention, comprising hydrate nanoparticles of calcium silicate having a Ca/Si molar ratio higher than or equal to 0.8.
B01J 20/10 - Solid sorbent compositions or filter aid compositionsSorbents for chromatographyProcesses for preparing, regenerating or reactivating thereof comprising inorganic material comprising silica or silicate
The invention relates to a device for sampling at a depth (1) including: a tube (2) having an opening that is controlled by a first valve (3) downstream from which an opening that communicates in a first enclosure (4) is located, said first enclosure also communicating, via a flexible tube (5), with a variable-volume chamber(6) located downstream therefrom, said flexible tube (5) including an opening (7) controlled by a second valve (8) communicating toward the outside of said flexible tube, a third valve (9) controlling the passage inside said flexible tube (5) and placed upstream from said opening (7), and a fourth valve (10) controlling the opening of said variable-volume chamber (6) and placed downstream from said third valve (9).
The present invention in particular relates to a carbon core preparation method, characterized in that the method includes the steps of: (i) grinding a carbon sample so as to obtain a powder having a particle size between 0.1 and 800 μm; (ii) adding water to the powder obtained in step (i) so as to obtain a mixture including 20% to 30% water; (iii) placing the mixture, obtained in step (ii), in a mold; (iv) applying a pressure greater than 0.5 Mpa to the mixture, contained in said mold, so as to obtain a block; and (v) reinforcing the block, obtained in step (iv) under oedometric conditions so as to obtain a sample having a void ratio similar to that of the carbon, from which the sample used in step (1) was formed.
The fluid circulating in conduit 1 comprises hydrocarbons, and also acidic compounds to be removed, such as CO2, H2S, COS or mercaptans. The fluid circulating in conduit 1 is brought into contact, in zone ZA, with an aqueous suspension of LDH or of mixed oxides derived from moderate heat treatment of the LDHs, being supplied via conduit 2. The aqueous suspension makes it possible not only to capture the CO2 and H2S, but also the COS and the mercaptans. The fluid depleted of acidic compounds is discharged via conduit 4. The aqueous suspension loaded with acidic compounds is sent, via conduit 3, to the regeneration zone RE.
B01D 53/04 - Separation of gases or vapoursRecovering vapours of volatile solvents from gasesChemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases or aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
B01D 53/14 - Separation of gases or vapoursRecovering vapours of volatile solvents from gasesChemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases or aerosols by absorption
B01J 20/04 - Solid sorbent compositions or filter aid compositionsSorbents for chromatographyProcesses for preparing, regenerating or reactivating thereof comprising inorganic material comprising compounds of alkali metals, alkaline earth metals or magnesium
B01J 20/06 - Solid sorbent compositions or filter aid compositionsSorbents for chromatographyProcesses for preparing, regenerating or reactivating thereof comprising inorganic material comprising oxides or hydroxides of metals not provided for in group
C10L 3/10 - Working-up natural gas or synthetic natural gas
09 - Scientific and electric apparatus and instruments
38 - Telecommunications services
42 - Scientific, technological and industrial services, research and design
Goods & Services
Recorded programs and software on Earth sciences. Providing databases on Earth sciences, in particular via the
Internet. Programming of Earth science software.
