EP2537590B1 - Verfahren zur Gewinnung von nichtmagnetischen Erzen aus einem nichtmagnetische Erzpartikel enthaltenden suspensionsartigen Massestrom - Google Patents

Verfahren zur Gewinnung von nichtmagnetischen Erzen aus einem nichtmagnetische Erzpartikel enthaltenden suspensionsartigen Massestrom Download PDF

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EP2537590B1
EP2537590B1 EP11170703.0A EP11170703A EP2537590B1 EP 2537590 B1 EP2537590 B1 EP 2537590B1 EP 11170703 A EP11170703 A EP 11170703A EP 2537590 B1 EP2537590 B1 EP 2537590B1
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EP
European Patent Office
Prior art keywords
magnetic
separator
particles
ore
flow
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EP11170703.0A
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German (de)
English (en)
French (fr)
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EP2537590A1 (de
Inventor
Michael Diez
Argun Gökpekin
Wolfgang Krieglstein
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Siemens AG
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Siemens AG
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Application filed by Siemens AG filed Critical Siemens AG
Priority to PL11170703T priority Critical patent/PL2537590T3/pl
Priority to EP11170703.0A priority patent/EP2537590B1/de
Priority to AU2012272063A priority patent/AU2012272063A1/en
Priority to PCT/EP2012/060218 priority patent/WO2012175303A1/de
Priority to PE2013002792A priority patent/PE20141243A1/es
Priority to RU2014101628A priority patent/RU2629181C2/ru
Priority to US14/128,749 priority patent/US8991615B2/en
Publication of EP2537590A1 publication Critical patent/EP2537590A1/de
Priority to CL2013003674A priority patent/CL2013003674A1/es
Publication of EP2537590B1 publication Critical patent/EP2537590B1/de
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C1/00—Magnetic separation
    • B03C1/005—Pretreatment specially adapted for magnetic separation
    • B03C1/015—Pretreatment specially adapted for magnetic separation by chemical treatment imparting magnetic properties to the material to be separated, e.g. roasting, reduction, oxidation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
    • B03B13/00—Control arrangements specially adapted for wet-separating apparatus or for dressing plant, using physical effects

Definitions

  • a flotation cell or a flotation reactor is a mass flow in the form of an ore-containing pulp, i. essentially a suspension of water, ground rock (gangue) and ground ore fed.
  • the mass flow containing the ore particle magnetic particle agglomerates is subsequently supplied as so-called separator flow to a (first) separation device in the form of a magnetic separator.
  • the magnetic separator serves to separate the ore particle-magnetic particle agglomerates from the bulk stream or pulp, i. the magnetic ore particle magnetic particle agglomerates are discharged from the pulp and transferred to a so-called separator concentrate stream which essentially contains the ore particle-magnetic particle agglomerates, minor amounts of gait and water.
  • the remaining constituents or residues are fed into what is known as a separator residual stream.
  • the ore particle magnetic particle agglomerates are cleaved into their constituents, ie ore particles and magnetic particles, so that they are present in the form of a mixture unbound or separately next to one another (so-called "unload” process).
  • the ore particle-magnetic particle agglomerates are separated by means of a further or second separation device via chemical processes through the use of appropriate chemicals such as solvents or the like.
  • the separation of the substantially isolated magnetic particles from the ore particles and the remaining constituents is then likewise carried out in the context of the "unload" process via a further or third separation device, again typically in the form of or comprising a magnetic separator in which the magnetic particles are separated magnetically , This is followed by separation into a mass flow containing first magnetic particles and a mass flow containing a second ore particles, which are present separately from each other and basically or ideally only the respective pure substance, i. either pure magnetic particles or pure ore particles.
  • a generic method is for example off EP 2 090 367 A1 or belonging to the same patent family WO 2009/101070 A2 which relates to a process for the continuous recovery of non-magnetic ores from non-magnetic ore particles having pulp.
  • Magnetic or magnetizable magnetic particles which form ore-magnetic particle agglomerates with the non-magnetic ore particles, are fed to a pulp flowing continuously through a reactor.
  • the ore magnetic particle agglomerates are moved by means of a magnetic field into an accumulation region of the reactor and removed from the accumulation region of the reactor.
  • both the ore particles and the magnetic particles are subject to certain losses, since both the non-agglomerated ore particles or magnetic particles and the ore particle magnetic particle agglomerates not separated from the separator flow are not or only with considerable effort available for further use are.
  • the invention is therefore based on the problem of specifying an improved method for obtaining non-magnetic ores, in particular with regard to monitoring the process yield of the "load" process.
  • the inventive method provides to determine the proportion of ore particles or magnetic particles or the ore particle magnetic particle agglomerates qualitatively or quantitatively. This is done on the basis of the at least one information indicating the proportion of ore particles and / or magnetic particles in the Separatorzustrom and / or the Separatorkonzentratstrom and / or the Separatorreststrom information.
  • the efficiency or yield of the process step of forming the ore particle magnetic particle agglomerates and / or the process step of separating the ore particle magnetic particle agglomerates from the Separatorzustrom first qualitatively or quantitatively described.
  • direct or indirect knowledge about the efficiencies of the corresponding process steps can be obtained.
  • the determination of the at least one information indicative of the proportion of ore particles and / or magnetic particles in the Separatorzustrom and / or the Separatorkonzentratstrom and / or the Separatorreststrom information is preferably carried out by X-ray analysis method, in particular X-ray fluorescence analysis (XRF) or X-ray diffractometry (XRD).
  • XRF X-ray fluorescence analysis
  • XRD X-ray diffractometry
  • Magnetic particles in the sense of the invention are to be understood as meaning all magnetic or magnetizable particles.
  • L e-diglich example ferrimagnetic particles such as magnetite (Fe 3 O 4) are cited.
  • ore particles-magnetic particle agglomerates which comprise at least one ore particle and at least one magnetic particle, carried out in the context of the method according to the invention takes place via at least one suitable mixing device.
  • a magnetic separator which optionally comprises a plurality of magnetic devices.
  • the separation of the ore particles from the deposited ore magnetic particle agglomerates as part of the process of the present invention may be accomplished by a step of feeding the ore particle magnetic particle agglomerates into a separation apparatus wherein the ore particle magnetic particle agglomerates into a mixture of separately adjacent ore particles and magnetic particles, and a process step of feeding the mixture into a separation device in which the magnetic particles are magnetically separated from the mixture via a magnetic device associated with the separation device to form a first magnetic particle containing mass flow and a second mass containing second ore particles ,
  • the magnetic separator for separating the ore particle magnetic particle agglomerates from the Separatorzustrom as a first separation device the separation device for separating the separated from the Separatorkonzentratstrom ore particles magnetic particle agglomerates in the mixture of separately coexistent ore particles and magnetic particles as the second separation device and the separation device for separating the magnetic particles from the mixture may be referred to as a third separating device.
  • All separation devices may have one or more associated or associated separation regions, separation chambers, separation devices or the like.
  • the determination of the information can be done, for example, from the residues remaining after separation of the ore particle magnetic particle agglomerates from the separator concentrate stream, ie from the separator residual stream. This is in particular a qualitative consideration of the process yield of "load” process possible. Certain levels of ore particles and / or magnetic particles in the separator tail stream (so-called tailing) indicate that the process step of the formation of the ore particle magnetic particle agglomerates should be optimized, since in the residues still a certain number of unbound, ie not to ore particles Magnetic particle agglomerates agglomerated ore particles respectively magnetic particles is present.
  • At least one information indicating a measure of the proportion of ore particles and magnetic particles in the Separatorzustrom and / or the Separatorkonzentratstrom and / or the Separatorreststrom information is determined. That is, it is possible to know about both the proportion of ore particles and the proportion of magnetic particles in the respective streams to obtain, so that a comprehensive picture of the efficiency of the respective process steps of the method according to the invention both in terms of the respective proportions of ore particles and magnetic particles is feasible.
  • the information indicative of the proportion of ore particles and / or magnetic particles is determined for at least two of the streams, the information relating to the respective streams indicating the measure of the proportion of ore particles and / or magnetic particles based on the information, in particular after a comparison Information, at least one operating parameter of the mixing device and / or the magnetic separator is set. Accordingly, for example, the content of ore particles and / or magnetic particles in the Separatorzustrom be determined and compared with the corresponding contents in the Separatorkonzentratstrom. With ideal attachment of the ore particles to the magnetic particles, the separator concentrate stream contains no unbound, i. isolated ore particles or magnetic particles. The same applies of course to the Separatorreststrom.
  • the information for the Separatorzustrom and the Separatorreststrom is determined, it can also be adjusted based on the comparison of the separatorzustrom content information and the separatorreststrom detaileden information at least one operating parameters of the mixing device and / or the magnetic separator.
  • the respective contents of ore particles or magnetic particles for all three streams i. the Separatorzustrom, the Separatorkonzentratstrom and the Separatorreststrom, determined via appropriate information concerning the respective streams and compared with each other.
  • the mass flow to be supplied to the mixer can be a quantitative determination of the proportion of ore particles in the separated ore particle magnetic particle agglomerates from a comparison of the proportion of ore particles contained in the mass flow and the proportion of ore particles contained in the separated ore particle magnetic particle agglomerates to be possible.
  • the content of ore particles in the mass flow is known even before the formation of ore particle magnetic particle agglomerates, so that the efficiency of the "load” process from the difference of the initial content of ore particles in the mass flow and the content of ore particles in the results in separated ore particle magnetic particle agglomerates containing Separatorkonzentratstrom.
  • a corresponding consideration also applies to the conventionally known proportion of added magnetic particles.
  • the content of ore particles or magnetic particles of the mass flow can also be compared with the corresponding contents of ore particles or magnetic particles in Separatorzustrom what equally provides knowledge about the efficiency of the mixing process performed in the mixing device.
  • the setting of the respective operating parameters, in particular the mixing device and the magnetic separator is basically such that the proportion of ore particles and / or magnetic particles in the Separatorreststrom is reduced or minimized.
  • the method according to the invention preferably provides the information indicating a measure of the proportion of ore particles or magnetic particles in the respective streams not only as an indication of the efficiency of the corresponding process steps for forming the ore particle magnetic particle agglomerates or for separating the ore particle magnetic particles Agglomerates from the Separatorzustrom use, but this equally as a control signal for the adjustment or change of corresponding mixing devices or magnetic separators for separating the ore particles magnetic particle agglomerates from the Separatorzustrom to use.
  • the information is compared with at least one threshold value indicating a minimum or maximum concentration of ore particles in the separator concentrate stream and / or in the separator residual stream, wherein at least one operating parameter of the mixing device and / or of the magnetic separator is set as a function of the comparison result becomes.
  • a threshold value which of course also corresponding threshold ranges are understood, a particularly simple and fast quality monitoring in particular the "load” process can take place and therefore settings corresponding operating parameters of the mixing device (s) and / or the or the magnetic separators for the purpose of Process optimization are made.
  • a threshold value which threshold value may of course also include corresponding tolerance ranges
  • the fraction of ore particles in the separator concentrate stream or in the separator stream Separator residual flow is increased above a predetermined or specifiable standard value, this also indicates that the proportion of ore particles in the separated ore particle magnetic particle agglomerates is too low.
  • a corresponding adaptation of in particular at least one operating parameter of the mixing device used to form the ore particle magnetic particle agglomerates takes place, and consequently the process step involves the formation of the ore particle magnetic particle agglomerates. The same applies when detecting an exceeding of a threshold value of magnetic particles in Separatorreststrom.
  • an excess of the proportion of ore particle magnetic particle agglomerates in Separatorreststrom be detected, which indicates that process technology should be intervened in the process step of separating the ore particle magnetic particle agglomerates from the Separatorzustrom. Consequently, at least one operating parameter required for the operation of the magnetic separator for separating off the ore particle magnetic particle agglomerates from the separator flow is hereby primarily adapted or optimized.
  • the threshold value is formed in consideration of a degree of pulverization and / or digestion of the ore particles in the mass flow.
  • other parameters in particular the ore particles, can also be taken into account within the framework of the formation of the threshold value.
  • the concentration of the magnetic particles in particular the concentration of the magnetic particles relative to the ore particles, and / or the concentration and / or composition of a hydrophobizing the ore particles and / or the magnetic particles hydrophobicizing and / or the shear rate and / or the mixing time and / or the composition of the mass flow, in particular a water content of the mass flow, and / or the flow rate of the mass flow are used.
  • At least one magnetic parameter in particular the field strength and / or a field gradient, and / or the mass flow through the magnetic separator fluid influencing means, in particular in the form of orifices and / or displacement bodies, and / or the Flow rate of the mass flow can be used by the magnetic separator.
  • the adjustment of magnetic parameters is particularly useful when using a traveling magnetic field separator as a magnetic device correspondingly associated with the magnetic separator for separating the ore particle magnetic particle agglomerates from the separator feed. This also applies the setting of corresponding signal exciter forms, signal frequencies, signal phase positions of relative signal characteristics such as countercurrent, synchronization, velocity relative to the flow of Separatorzustroms or the pulp and other, the magnetic field influencing magnetic parameters.
  • All processes are determined by several communicating decentralized or a central control and / or regulating device, recorded and evaluated in particular via suitable computer-based evaluation algorithms and optionally deposited in a storage means.
  • the determination of a measure of the proportion of ore particles or magnetic particles in the respective streams indicating information can be continuous or discontinuous.
  • this information is constantly determined at all times, so that a complete image of the process control with regard to the yield, in particular of the "load" process, is given.
  • a discontinuous determination of the information these are determined at given or predefinable times, for example once a minute. Both variants allow a so-called in situ or online determination of the information.
  • a discontinuous determination of the information also means sampling of ore particle magnetic particle agglomerates separated from the mass flow, which sample, separately from the method according to the invention, for example in a laboratory, is tested for its corresponding composition, i. in particular the proportion of ore particles.
  • the determination of the information is carried out continuously, wherein on the basis of the continuously determined information, a continuous control and / or regulation of the method is performed. Consequently, within the scope of the method according to the invention, a measure of the proportion of ore particles or magnetic particles in the respective streams can be determined continuously.
  • the continuous identification of the corresponding, Information associated with the respective streams permits continuous or dynamic regulation or optimization of the process, so that the process control of changing process parameters, such as the composition of the mass flow, can be readjusted quickly, ie possibly even in real time.
  • the mass flow or the Separatorzustrom is supplied again.
  • the further usable ore particles, magnetic particles or ore particle magnetic particle agglomerates contained in the Separatorreststrom are fed again to the mass flow or the Separatorzustrom.
  • the mass flow supplied ore particles or magnetic particles in the mixing device are again bonded to ore particle magnetic particle agglomerates respectively not transferred from the Separatorzustrom transferred to the Separatorkonzentratstrom Erzpumble magnetic particle agglomerates again promoted by the magnetic separator and optionally separated.
  • the process efficiency can be increased in such a way, as fundamentally reusable or reusable materials are not lost.
  • the Separatorzustrom can for example have a solids content of non-magnetic ore particles below 10%, in particular less than 10%, preferably between 1 and 10% nickel ore particles.
  • the solids content of copper or molybdenum ore particles may be below 5%, preferably between 1 and 5%.
  • the proportion of copper ore particles can be between 0.3 and 2.5%.
  • the proportion of molybdenum ore particles may be between 0.025 and 0.1%. All salary information is purely exemplary nature.
  • the operating parameters of the mixing device and / or of the magnetic separator are advantageously set such that the proportion of ore particles and / or magnetic particles in the separator residual stream is reduced, in particular minimized.
  • This embodiment is then advantageously used when the mined ore is a first extraction step, often also Grobflotation called, goes through.
  • the maximum mass flow to be processed is present, which may be on the order of several thousand to 10,000 m 3 / h, since only the ore fraction present in the pulp is present in the pulp, and accordingly a comparatively large proportion of deaf rock ,
  • the goal here is to extract as much of the ore from the pulp as possible.
  • the ore, which is not extracted from the pulp in this first extraction step is usually lost and is discharged from the plant into a so-called Tailing Dam. If this first recovery step is sub-optimal with regard to the yield of the ore, this considerably reduces the economic efficiency of the entire process, since the missing yield in this process step can hardly be compensated in later process steps.
  • the Separatorzustrom has a solids content of more than 5%, in particular between 5 and 40%, wherein the operating parameters of the mixing device and / or the magnetic separator are adjusted such that the proportion of ore particles in the Separatorkonzentratstrom increased, in particular maximized , becomes.
  • the process is used for concentrate processing.
  • a separator stream enriched with ore particle magnetic particle agglomerates is already fed to the magnetic separator to further increase the fraction of ore particle magnetic particle agglomerates by their magnetic separation by means of the magnetic separator in a separator concentrate stream.
  • a plurality of these steps is required in order to achieve a desired for further processing ore content in the concentrate stream.
  • the present invention also relates to an apparatus for carrying out the method described above.
  • the device comprises at least one mixing device for mixing the mass flow with magnetic particles to form ore particle magnetic particle agglomerates, at least one feed device for feeding the mass flow as Separatorzustrom in at least one magnetic separator for separating the ore particle magnetic particle agglomerates from the mass flow, at least one separation device for separating the ore particles from the Separatorkonzentratstrom, at least one detection means for determining at least one a measure of the proportion of Ore particles and / or magnetic particles in the Separatorzustrom and / or the Separatorkonzentratstrom and / or the Separatorreststrom and at least one control and / or regulating device.
  • the control and / or regulating device comprises at least one machine-readable program means, the program means being designed as a function of the determined information for controlling and / or regulating the mixing device and / or the magnetic separator and / or the separating device.
  • control and / or regulating device for a device as described above.
  • the control and / or regulating device comprises at least one machine-readable program means, wherein the program means in dependence of a measure of the proportion of ore particles or magnetic particles in the Separatorzustrom and / or Separatorkonzentratstrom and / or Separatorreststrom determined information for controlling and / or regulating a mixing device and / or the magnetic separator and / or the separating device is formed.
  • FIG. 1 shows a block diagram of the method according to the invention for obtaining non-magnetic ores from a non-magnetic ore particle and suspension-like mass flow containing magnetic particles. It is preferably a continuous process.
  • a device 13 for extracting non-magnetic ores from a non-magnetic ore particle E containing mass flow which device 13 can be referred to as a magnetic flotation cell associated mixing device 14 is a mass flow in the form of a pulp P and Magnetic particles M supplied.
  • the pulp P consists essentially of non-magnetic ore particles E, such as Cu 2 S particles, the magnetic particles M are for example in the form of magnetite (Fe 3 O 4 ) before. If appropriate, the magnetic particles M may already be hydrophobized.
  • the so-called "load” process takes place in which the hydrophobized magnetic particles M are deposited on the hydrophobized ore particles E or interact with them to form ore magnetic particle agglomerates A.
  • the ore magnetic particle agglomerates A contained in the mass flow comprise at least one hydrophobized magnetic particle M and at least one hydrophobized ore particle E.
  • the magnetic particles M are to be considered as carrier particles for the ore particles E.
  • Essential influencing factors for the formation of an efficient yield of ore particle magnetic particle agglomerates A are the mixing time, shear forces prevailing during the mixing process and, if appropriate, the freeness or the particle size or particle size distribution of the ore particles E contained in the mass flow.
  • the mass flow is supplied as separator flow (see arrow 11) to a magnetic separator 16, in particular by means of a feed device 15.
  • a magnetic separator 16 In the third process step, magnetic separation of the ore particle-magnetic particle agglomerates A from the separator feed takes place, i. essentially of gait G.
  • the magnetic separator 16 which may also be referred to as the first separating device, has at least one magnetic device (not shown).
  • the magnetic particle particles magnetic particle agglomerates A which are magnetic due to the magnetic particles M, accumulate in the region of the magnetic device and can thus largely be separated from the gait G, i.
  • the concentrated ore particle magnetic particle agglomerates A contained in the separator concentrate stream are fed to a second separation device 17 in which the ore particle magnetic particle agglomerates A are mixed with separately present unbonded ore particles E and Magnetic particles M are separated (so-called "unload” process).
  • the separation of the ore particle magnetic particle agglomerates A for example, chemically, in particular via a change in the pH and / or an addition of chemical release agents T done.
  • the "unload" process is largely completed, i. there is a mixture of separately present unbound ore particles E and magnetic particles M.
  • the isolated magnetic particles M are magnetically separated from the non-magnetic ore particles E via a third separating device 21 comprising a magnetic device, in particular a traveling-field magnetic separator, and converted into a mass flow MS1 containing a first magnetic particle M.
  • the first mass flow MS1 can be recycled, so that the magnetic particles M contained in it can be reused at the beginning of the process (see arrow 10). Accordingly, the overall process can be optimized in economic and environmental terms.
  • the ore particles E are converted into a mass stream MS2 containing a second ore particle E, which is subsequently dehydrated or dried (cf., box 7), so that dried ore particles E are largely present after dehydration or drying.
  • the water W is discharged separately.
  • the first mass flow MS1 contains exclusively magnetic particles M and the second mass flow MS2 exclusively ore particles E.
  • this is difficult to realize in practice, so that there are certain losses of magnetic particles bound in the first mass flow MS1 and magnetic particles bound in the second mass flow MS2 M is coming.
  • the loss of ore particles E in the magnetic separation by means of the magnetic separator 16 in the context of the method according to the invention can be determined in order to estimate the efficiency and the yield of the "load" process and possibly also of the overall process and optionally to optimize.
  • the inventive method is characterized accordingly by the fact that at least one is a measure of the proportion of ore particles E or magnetic particles M in the Separatorzustrom and / or the Separatorkonzentratstrom and / or the Separatorreststrom indicating information I is determined.
  • the information I indicating a measure of the proportion of ore particles E or magnetic particles M can thus be determined at different process steps of the method described above.
  • Particularly suitable are at least indirectly associated with the "lo-ad" Prozz process steps of mixing the nonmagnetic ore particles E containing mass flow or the pulp P with the magnetic particles M in the mixing device 14, so that the information I from the Mixing device 14 and optionally the feed device 15 leaving Separatorzustrom (see arrow 11) is determined.
  • the measure of the proportion of ore particles E and / or magnetic particles M indicating information I is preferably determined for all three streams, that is the Separatorzustrom, the Separatorkonzentratstrom and Separatorreststrom, based on a comparison of the respective currents information I, at least an operating parameter of the mixing device 14 and / or the magnetic separator 16 is set.
  • the comparison of the information I concerning the separator flow and the information I concerning the separator concentrate flow for the respective proportion of ore particles E allows a quantitative statement about the yield of the "load" process. That is, it can be quantitatively determined what proportion of ore particles E could be separated from the ore particle magnetic particle agglomerates A separated from the separator feed. In this way, overall relevant findings can be obtained for the process yield of the method according to the invention.
  • the determination of the respective information I is preferably carried out continuously by means of X-ray fluorescence analysis methods, such as, for example, X-ray fluorescence analysis (XRF) or X-ray diffractometry analysis (XRD).
  • XRF X-ray fluorescence analysis
  • XRD X-ray diffractometry analysis
  • At least one operating parameter of the mixing device 14 and / or of the magnetic separator 16 is adjusted on the basis of the determined respective information I or comparison results of specific information I.
  • other devices used in the context of the method according to the invention such as, in particular, further separating devices 17, 21 or the like, or their operating parameters, can be set or optimized as a function of the determined information (I).
  • Exemplary operating parameters for the mixing device 14 are the concentration of the magnetic particles M, in particular the concentration of the magnetic particles M relative to the ore particles E, and / or the concentration and / or composition of a water repellent H and / or hydrophobizing the ore particles E and / or the magnetic particles M the shear rate and / or the mixing time and / or the composition of the mass flow, in particular a water content of the mass flow, and / or the flow rate of the mass flow.
  • Exemplary operating parameters for the magnetic separator 16 are at least one magnetic parameter, in particular the field strength and / or a field gradient, and / or the mass flow through the magnetic separator 16 fluid influencing means, in particular in the form of diaphragms and / or displacement bodies, and / or the Flow rate of the mass flow through the magnetic separator 16.
  • the proportion of ore particle magnetic particle agglomerates A in the separator concentrate stream is increased or maximized or the proportion of ore particles E and / or magnetic particles M and / or ore particle magnetic particle agglomerates A in the separator residual stream is reduced or minimized.
  • the information I can be compared with at least one threshold value indicating a minimum or maximum concentration of ore particles E in the separator concentrate stream and / or in the separator residual stream, wherein at least one operating parameter of the mixing device 14 and / or of the magnetic separator 16 is set as a function of the comparison result.
  • the threshold value (s) of which, of course, corresponding threshold ranges, are advantageously formed taking into account a degree of pulverization and / or digestion of the ore particles E in the mass flow originally used.
  • mixing device (s) 14 respectively separating device (s) 16, 17, 21, d. H. in particular of the magnetic separator 16 for separating the ore particle magnetic particle agglomerates A from the Separatorzustrom is possible.
  • Particular embodiments of the method according to the invention provide that before the actual setting of at least an operating parameter is simulated a change of the information I which is expected to be associated therewith.
  • the separator residual stream (see arrow 3) is again supplied to the original mass flow or to the separator feed after separation of the ore particle magnetic particle agglomerates A.
  • Corresponding ore particles E and / or magnetic particles M contained in the separator residual stream may if appropriate be converted into corresponding ore particle magnetic particle agglomerates A or, in relation to the recycled ore magnetic particle agglomerates A, be separated from the separator stream.
  • the reusable particles present in the Separatorreststrom are thus not lost, which is beneficial to the efficiency of the method according to the invention.
  • the Separatorzustrom may for example have a solids content of non-magnetic ore particles E below 10%, in particular less than 10%, preferably between 1 and 10% nickel ore particles.
  • the solids content of copper or molybdenum ore particles may be below 5%, preferably between 1 and 5%.
  • the proportion of copper ore particles can be between 0.3 and 2.5%.
  • the proportion of molybdenum ore particles may be between 0.025 and 0.1%. All salary information is purely exemplary nature.
  • the operating parameters of the mixing device 14 and / or of the magnetic separator 16 are advantageously adjusted in such a way that the proportion of ore particles E and / or magnetic particles M in the separator residual stream is reduced, in particular minimized.
  • the Separatorzustrom has a solids content of more than 5%, in particular between 5 and 40%, wherein the operating parameters of the mixing device 14 and / or the magnetic separator 16 are adjusted such that the proportion of ore particles E increases in Separatorkonzentratstrom , in particular, is maximized.
  • Boxes 8, 9 shown in dashed lines indicate that, if necessary, a remixing operation (see box 8) may be required to remove residues, i. non-separated or split ore particle magnetic particle agglomerates A to remix after the separation carried out in the fifth process step.
  • a remixing operation may be required to remove residues, i. non-separated or split ore particle magnetic particle agglomerates A to remix after the separation carried out in the fifth process step.
  • an addition of a more highly concentrated release agent T may be expedient. Accordingly, a new dewatering or drying takes place (see Box 9).
  • the device 13 used for carrying out the method according to the invention has at least one mixing device 14 for mixing the mass flow with optionally pre-hydrophobized magnetic particles M to form ore particle magnetic particle agglomerates A, at least one feed device 15 for feeding the mass flow as Separatorzustrom in at least one Magnetic separator 16 for separating the ore particle magnetic particle agglomerates A from the Separatorzustrom, at least one separator 17 for separating the ore particles E from the Separatorkonzentratstrom, at least one detection means 18 for determining at least one measure of the proportion of ore particles E or magnetic particles M in the Separatorzustrom and / or Separatorkonzentratstrom and / or Separatorreststrom indicating information I and at least one control and / or regulating device 19.
  • the control and / or regulating device 19 comprises at least one machine-readable program means 20, the program means 20 depending on the determined information I for controlling and / or regulating the mixing device 14 and / or the magnetic separator 16 and / or the separation device (s) 17th , 21 is formed.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Separation Of Solids By Using Liquids Or Pneumatic Power (AREA)
EP11170703.0A 2011-06-21 2011-06-21 Verfahren zur Gewinnung von nichtmagnetischen Erzen aus einem nichtmagnetische Erzpartikel enthaltenden suspensionsartigen Massestrom Active EP2537590B1 (de)

Priority Applications (8)

Application Number Priority Date Filing Date Title
PL11170703T PL2537590T3 (pl) 2011-06-21 2011-06-21 Sposób pozyskiwania niemagnetycznych rud z zawiesinowego strumienia masowego zawierającego niemagnetyczne cząstki rudy
EP11170703.0A EP2537590B1 (de) 2011-06-21 2011-06-21 Verfahren zur Gewinnung von nichtmagnetischen Erzen aus einem nichtmagnetische Erzpartikel enthaltenden suspensionsartigen Massestrom
PE2013002792A PE20141243A1 (es) 2011-06-21 2012-05-31 Procedimiento para la obtencion de minerales no magneticos de un flujo masico a modo de suspension que contiene particulas minerales no magneticas
PCT/EP2012/060218 WO2012175303A1 (de) 2011-06-21 2012-05-31 Verfahren zur gewinnung von nichtmagnetischen erzen aus einem nichtmagnetische erzpartikel enthaltenden suspensionsartigen massestrom
AU2012272063A AU2012272063A1 (en) 2011-06-21 2012-05-31 Method for obtaining non-magnetic ores from a suspension-like mass flow containing non-magnetic ore particles
RU2014101628A RU2629181C2 (ru) 2011-06-21 2012-05-31 Способ добычи немагнитных руд из содержащего немагнитные частицы суспензионного массового потока
US14/128,749 US8991615B2 (en) 2011-06-21 2012-05-31 Method for obtaining non-magnetic ores from a suspension-like mass flow containing non-magnetic ore particles
CL2013003674A CL2013003674A1 (es) 2011-06-21 2013-12-20 Procedimiento para la obtencion de minerales no magneticos de un flujo masico a modo de suspension que contiene particulas minerales no magneticas.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP11170703.0A EP2537590B1 (de) 2011-06-21 2011-06-21 Verfahren zur Gewinnung von nichtmagnetischen Erzen aus einem nichtmagnetische Erzpartikel enthaltenden suspensionsartigen Massestrom

Publications (2)

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EP2537590A1 EP2537590A1 (de) 2012-12-26
EP2537590B1 true EP2537590B1 (de) 2015-05-27

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EP (1) EP2537590B1 (es)
AU (1) AU2012272063A1 (es)
CL (1) CL2013003674A1 (es)
PE (1) PE20141243A1 (es)
PL (1) PL2537590T3 (es)
RU (1) RU2629181C2 (es)
WO (1) WO2012175303A1 (es)

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PL2537590T3 (pl) 2011-06-21 2015-10-30 Siemens Ag Sposób pozyskiwania niemagnetycznych rud z zawiesinowego strumienia masowego zawierającego niemagnetyczne cząstki rudy
EP2537589A1 (de) * 2011-06-21 2012-12-26 Siemens Aktiengesellschaft Verfahren zum Trennen eines ersten Stoffes aus einem fließfähigen Primärstoffstrom, Vorrichtung zum Trennen eines ersten Stoffes aus einem fließfähigen Primärstoffstrom und Steuer- und/oder Regeleinrichtung
WO2017066752A1 (en) * 2015-10-16 2017-04-20 Cidra Corporate Services Inc. Mineral beneficiation utilizing engineered materials for mineral separation and coarse particle recovery
WO2017087498A1 (en) 2015-11-16 2017-05-26 Cidra Corporate Services Inc. Utilizing engineered media for recovery of minerals in tailings stream at the end of a flotation separation process

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RU2629181C2 (ru) 2017-08-25
AU2012272063A1 (en) 2014-01-16
EP2537590A1 (de) 2012-12-26
US20140124414A1 (en) 2014-05-08
US8991615B2 (en) 2015-03-31
CL2013003674A1 (es) 2014-05-16
RU2014101628A (ru) 2015-07-27
PE20141243A1 (es) 2014-09-21
WO2012175303A1 (de) 2012-12-27
PL2537590T3 (pl) 2015-10-30

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