Measurement system, carbon immersion system and method for preparing gold sample

Abstract

Measurement systems, carbon immersion systems, and methods for preparing gold samples are disclosed. The measurement system (1) is used to prepare at least one gold sample for analysis by an analyzer (4). The measurement system comprises a sample filter (6) configured to receive a sample (12) from a carbon immersion (CIL) system (10) and to filter the sample to form a clear liquid (8); and a sampling device (2). The sampling device (2) comprises: a housing (22); and a collector (3) located at least partially inside the housing. The collector (3) comprises activated carbon configured to enrich dissolved gold from the clear liquid (8). The sampling device (2) is configured to receive the clear liquid (8). The clear liquid (8) is configured to flow at least partially through the collector (3). The clear liquid (8) is configured to be in contact with the activated carbon of the collector (3) to enrich gold on the activated carbon; and the amount of gold enriched on the activated carbon is configured for analysis.

Description

Technical Field

[0001] This disclosure relates to mineral processing and hydrometallurgical processing. In particular, this disclosure relates to a measurement system for preparing at least one gold sample for analysis by an analyzer. Background Technology

[0002] In carbon-in-liquid phase (CIL) leaching processes, gold concentrations, particularly in tailings, can often be very low and difficult to detect. However, measurement systems can be further developed to detect gold concentrations at these low levels. Summary of the Invention

[0003] This synopsis is provided to introduce some concepts in a simplified form, which will be further described in the following detailed description. This synopsis is not intended to specify key or essential features of the claimed subject matter, nor is it intended to limit the scope of the claimed subject matter. The solutions of this application illustrate the scope of protection sought by various embodiments of this disclosure.

[0004] Exemplary embodiments of this disclosure provide systems and methods for preparing gold samples from a carbon immersion (CIL) process, wherein a known volume of a clarified solution containing gold and cyanide from the process is applied to a surface made of activated carbon for a known reaction time. This allows gold to accumulate on the activated carbon, thereby increasing the gold concentration above the detection limit of an online gold analyzer, such as an XRF analyzer. Since the increase in gold concentration is proportional to the reaction time, the original gold concentration in the liquid phase of the CIL process can be derived from calibration data. Subsequently, the CIL gold concentration derived from the measurement results can be further used for CIL process control and optimization. The measurement system may include activated carbon in particulate form or activated carbon as a solid nanoporous filter.

[0005] According to a first aspect, a measurement system for preparing at least one gold sample for analysis by an analyzer, wherein the measurement system comprises: a sample filter configured to receive a sample from a carbon leaching (CIL) system and filter the sample to form a clear liquid; and a sampling device comprising a housing and a collector at least partially located within the housing, wherein the collector comprises activated carbon configured to concentrate dissolved gold (dissolved gold) from the clear liquid; wherein the sampling device is configured to receive the clear liquid, which is configured to flow at least partially through the collector; the clear liquid is configured to contact the activated carbon of the collector to concentrate gold on the activated carbon; and the amount of gold concentrated on the activated carbon is configured for analysis. The sample can be obtained from tailings or from any other stream in the carbon leaching (CIL) process. The measurement system may involve an arrangement for preparing a sample of gold from a carbon leaching process, the arrangement being such that a known volume of a clear liquid containing gold and cyanide is applied to a surface made of activated carbon for a known reaction time. This allows gold to accumulate on activated carbon, thereby increasing the gold concentration above the detection limit of the analyzer (e.g., an online gold analyzer, such as an XRF analyzer). Since the increase in gold concentration may be proportional to the reaction time, the original gold concentration of the process sample from CIL can be derived from calibration data. The gold concentration derived from the measurement results can be further used for CIL process control and optimization.

[0006] According to an exemplary embodiment of the first aspect, the collector includes activated carbon particles configured to be stationary or in motion. This allows the use of different forms of activated carbon.

[0007] According to an exemplary embodiment of the first aspect, the collector device includes a collector filter comprising activated carbon particles. When a clear liquid is passed through the collector filter, the collector filter can cause gold present in the clear liquid to concentrate on the particles. The particles inside the collector filter can be stationary or moving. Various known filters can be used.

[0008] According to an exemplary embodiment of the first aspect, the sampling device includes a rotating loop in which activated carbon particles are configured to circulate. The circulation of the particles can improve the enrichment of gold on the particles.

[0009] According to an exemplary embodiment of the first aspect, the collector is configured to scale up the gold concentration to 0.1-100 ppm. As an example in CIL tailings, the gold concentration can be at a very low level and outside the minimum detection limit of commercial or online analyzers, for example, in the range of 0.01 ppm. The collector device can use activated carbon and can scale up the gold concentration to a level measurable by the analyzer.

[0010] According to an exemplary embodiment of the first aspect, the measurement system further includes an analyzer configured to measure the concentration of gold from the collector to generate measurement information. The analyzer is capable of performing accurate real-time elemental analysis measurements, which may be crucial for establishing effective process control to improve process stability and maximize recovery.

[0011] According to an exemplary embodiment of the first aspect, the analyzer is configured to continuously or intermittently measure the concentration of gold from the collector to form measurement information; or to measure the concentration of gold from the collector to form measurement information after gold has been configured to be enriched in activated carbon for a period of time. Different options may exist (e.g., continuously or in certain cycles) for measuring the concentration of gold from the collector.

[0012] According to an exemplary embodiment of the first aspect, the interval for measuring the concentration of gold from the collector is every 1-60 minutes, preferably every 1-30 minutes, more preferably every 1-10 minutes; or the time period for which gold has been configured to be enriched in activated carbon is from 10 seconds to 550 minutes, preferably from 30 seconds to 300 seconds. The concentration of gold can be measured at variable specific intervals or periods.

[0013] According to an exemplary embodiment of the first aspect, after gold has been configured to accumulate in activated carbon for a period of time, the collector is configured to be removed from the sampling device and arranged to be connected to the analyzer, such that at least one side of the collector is configured to face the analyzer in order to measure the concentration of gold from the collector. An analyzer located near or not near the sampling device can be used.

[0014] According to an exemplary embodiment of the first aspect, the analyzer is configured to be arranged in connection with a sampling device, such that at least one side of the collector is configured to face the analyzer in order to measure the concentration of gold from the collector. The analyzer can measure the amount of gold directly from the collector, thus eliminating the need to remove the collector from the sampling device.

[0015] According to an exemplary embodiment of the first aspect, measurement information from the analyzer is configured to form a gold loading curve, wherein the angle coefficient of the gold loading curve is configured to determine the amount of gold in the clarified solution. The gold loading curve can help understand the gold content in the clarified solution and enables process optimization and maximum gold recovery. For example, if there is excessive gold in the clarified solution, the amount of cyanide or carbon in the CIL system may be too low. This means that a certain amount of cyanide or carbon may need to be added to the CIL system.

[0016] According to an exemplary embodiment of the first aspect, the analyzer is a laser-induced breakdown spectroscopy (LIBS) or X-ray fluorescence (XRF) spectroscopy instrument. Different analyzers can be used to measure the amount of gold on activated carbon.

[0017] According to an exemplary embodiment of the first aspect, the measurement accuracy of the analyzer is configured to be adjusted by changing the particle size of the activated carbon or by adjusting the measurement time. The particle size of the activated carbon inside the collector can be changed. For example, for a smaller particle size, a lower concentration can be measured more accurately.

[0018] According to an exemplary embodiment of the first aspect, the measurement system further includes a control unit configured to receive measurement information from the analyzer and control the CIL system. The measurement information provided by the analyzer to the control unit helps maintain optimal carbon and cyanide efficiency and enables more efficient control of the CIL system. This information can be provided by an online analyzer. Utilizing real-time data for continuous operational optimization may be a necessary step to maximize gold recovery.

[0019] According to the second aspect, the carbon immersion (CIL) system includes at least one measurement system according to any one of the first aspects.

[0020] According to a third aspect, a method for preparing a gold sample for analysis by an analyzer using a measurement system, wherein the measurement system includes: a sample filter; and a sampling device including a housing and a collector at least partially located inside the housing, wherein the collector includes activated carbon configured to enrich dissolved gold from a clear liquid; wherein the method includes: receiving a sample from a carbon immersion (CIL) system through the sample filter and filtering the sample to form a clear liquid; receiving the clear liquid through the sampling device and allowing the clear liquid to flow at least partially through the collector; contacting the clear liquid with the activated carbon of the collector to enrich gold in the activated carbon; and measuring the amount of gold enriched in the activated carbon. The measurement system can allow gold to accumulate on the activated carbon, thereby increasing the gold concentration above the detection limit of the analyzer (e.g., an online gold analyzer, such as an XRF analyzer). The measurement system can be any of those according to the first aspect. Attached Figure Description

[0021] This disclosure can be better understood by reading the following detailed description in conjunction with the accompanying drawings, wherein: Figure 1 An example of a CIL system according to an embodiment of the present invention is illustrated. Figure 2 An example of a measurement system according to an embodiment of the present invention is illustrated schematically. Figure 3 This illustration schematically shows another example of a measurement system according to an embodiment of the present invention, and Figure 4 An exemplary method for preparing gold samples for analysis by an analyzer is shown.

[0022] Unless otherwise specified, any of the above figures may be drawn to scale, and therefore any element in the figures may be drawn to an inaccurate scale relative to the other elements in the figures in order to emphasize certain structural aspects of the embodiments of the figures.

[0023] Furthermore, in order to emphasize certain structural aspects of the embodiments of the above figures, corresponding elements in any of the embodiments of the above figures may be disproportionate to each other in the figures. Detailed Implementation

[0024] Reference will now be made in detail to exemplary embodiments, examples of which are illustrated in the accompanying drawings. The detailed description provided below, in conjunction with the accompanying drawings, is intended as a description of this example and is not intended to represent the only form in which this example can be constructed or utilized. This description illustrates the functionality of the example and the order of steps for constructing and operating the example. However, the same or equivalent functionality and sequence can be implemented through different examples.

[0025] According to an exemplary embodiment, carbon immersion (CIL) is a method for adsorbing gold leached from a slurry stream onto activated carbon. Activated carbon is a highly porous form of carbon with a large surface area, making it extremely effective for adsorption. This means it can capture molecules from a liquid onto its surface.

[0026] Gold adsorption can be performed in a tank located after the leaching tank. In operation, the leaching and adsorption loops can be combined into a single process. The slurry can flow downwards along the adsorption train, while interstage screening of carbon allows the gold-containing slurry to pass through while retaining carbon particles in the tank. Carbon can be intermittently pumped upwards to the CIL unit using an interstage pump. In CIL operation, carbon can be added to the leaching tank, thus allowing leaching and adsorption to occur simultaneously.

[0027] According to an exemplary embodiment, online measurement of the gold concentration in the clarified solution of CIL process tailings may be necessary to optimize the CIL process and prevent production losses. Typically, the gold concentration in CIL tailings can be very low, in the range of 0.01 ppm, thus exceeding the measurement range of online analyzers.

[0028] According to an exemplary embodiment, a method for scaling up gold concentration to 0.1-100 ppm is proposed. This range is achievable by an online gold analyzer. The proposed scaling up can be based on the known characteristics of activated carbon adsorbing dissolved gold at a known adsorption rate. By applying a known volume of clarified solution containing gold and cyanide to a surface made of activated carbon for a known reaction time, the gold concentration accumulated on the activated carbon can be within the measurement range of the online analyzer, and the original gold concentration of the clarified solution in the CIL loop can be derived. This information can be further used for CIL process control and optimization. Gold concentration (especially in CIL tailings) may be at very low levels and outside the minimum detection limit of commercial online analyzers. The proposed method can scale up the gold concentration to a measurable level. The resulting online gold analysis can be used for automated CIL process control and optimization.

[0029] This method is applicable to use with online analyzers that automatically generate gold analyses every 1–60 minutes. Current online control of CIL processes may not be achievable with laboratory offline analyses generated every 5–10 hours.

[0030] Figure 1An exemplary CIL system 10 is schematically illustrated. It may include multiple interconnected tanks 11 with ore slurry sources and cyanide solutions 14. The ore may be crushed and ground to release the gold-bearing mineral and to achieve a desired particle size distribution for optimal leaching kinetics. The prepared ore slurry may additionally include other processing stages to facilitate efficient gold recovery. The prepared ore slurry may be mixed with a cyanide solution that can be used to dissolve the gold. The tanks 11 may be provided in any number and may be interconnected such that each tank includes a slurry inlet 23 and a slurry outlet 24. The slurry outlet 24 of each tank 11 in series may be connected to the slurry inlet 23 of the next tank 11 in series to allow slurry 16 to flow. Carbon particle recirculation may also be provided by a recirculation system including pumps so that carbon particles can pass through in the opposite carbon direction 18 to the slurry. The slurry may flow downwards along the loop, while carbon may be intermittently transported upwards along the loop. The gold-loaded carbon 15 can be sent for elution, where gold can be stripped from the carbon using a hot caustic alkali solution. In regeneration, the carbon can be cleaned and reused in the process. Furthermore, fresh or new carbon 17 can be added to the process. Tailings can be disposed of at tailings outlet 13, and a portion of the tailings can be directed as sample 12 to measurement system 1. Measurement system 1 can obtain samples from the tailings or from any other stream in the carbon leaching (CIL) process.

[0031] Figure 2 and Figure 3 An example of measurement system 1 is illustrated schematically. Figure 1 and Figure 2 The measurement system 1 can be connected with Figure 1 It is used in conjunction with the CIL system 10.

[0032] According to an exemplary embodiment, a measurement system 1 for preparing at least one gold sample for analysis by an analyzer 4 is disclosed. The measurement system 1 may include a filter 6 configured to receive a sample 12 from a CIL system 10 and filter the sample 12 to form a clear liquid 8. The sample filter 6 can filter the sample 12 and separate the solids from the clear liquid 8. The clear liquid 8 may include leached gold. The measurement system 1 may also include a sampling device 2, which may include a housing 22 and a collector 3 at least partially located inside the housing 22. The sampling device 2 may include a collector system, which may include the collector 3. The collector 3 may be located inside the housing 22. The collector 3 may include activated carbon configured to enrich dissolved gold from the clear liquid 8. The collector may be a collector filter. The shape and size of the collector 3 may be at least a portion of the dimensions of the housing 22. Figure 2In the example, collector 3 is located inside the housing, at the center of housing 22. It can be located at a distance from the sidewalls, top, and / or bottom of housing 22. Collector 3 can also be the same size as housing 22. Collector 3 can be a static filter or a static collector 3. Sampling device 2 can receive clear liquid 8, which can at least partially flow through collector 3. Sampling device 2 can receive clear liquid 8 from sample filter 6. A conduit 26 can exist between sample filter 6 and sampling device 2, which conveys clear liquid 8 from sample filter 6 to sampling device 2. Conduit 26 may include valve 20. Valve 20 can control and regulate the flow of clear liquid 8 within conduit 26. Valve 20 can close when collector 3 or collector filter is removed. Clear liquid 8 can contact the activated carbon of collector 3 to enrich gold on the activated carbon, and the amount of gold enriched on the activated carbon can be analyzed. After clear liquid 8 flows through collector 3, it can be removed from sampling device outlet 7 to return to the process.

[0033] The housing 22 of the sampling device 2 may include at least one window 25 located on the outer surface of the housing 22. The at least one window 25 may be located on at least one side of the housing 22. At least one gold sample (which may include gold enriched on activated carbon) may be analyzed by the analyzer 4. The analyzer 4 may be positioned opposite the at least one window 25. Thus, the analyzer 4 can analyze the gold sample through the window 25 at the desired frequency. This eliminates the need to move the sample or collector 3 around. However, if necessary, the collector 3 can be removed and taken to the measurement location. The collector 3 may be located near or connected to the window 25.

[0034] According to an exemplary embodiment, the housing 22 may include a window 25, or the housing 22 may not include a window 25.

[0035] According to an exemplary embodiment, the housing 22 is made of a transparent material. The transparent material allows radiation from the analyzer 4 to pass through the housing walls. This allows the analyzer 4 to analyze the gold sample through the transparent housing walls. This means that the housing 22 may not include the window 25. The material of the housing 22 and / or the rotation loop 21 can be at least one of the following: silicone, polymer, and / or glass. Polymers are, for example, at least one of the following: polyethylene, polypropylene, and / or any other suitable plastic. These materials can be transparent. The sampling device 2 may also include a radiation protector, such as a backplate. The radiation protector can protect against radiation from the analyzer 4. Figure 3 The example schematically illustrates measurement system 1. It can be used with... Figure 2 The measurement system 1 is similar, but the collector 3 can be replaced by a continuous closed-loop flow inside the housing 22. It may also include a rotating loop 21. Figure 3The measurement system 1 may include a sampling device 2, which may include a housing 22. The housing 22 may include a collector 3 located at least partially inside the housing 22. The collector 3 may include activated carbon configured to enrich dissolved gold from the clear liquid 8. The collector 3 may include activated carbon particles configured to be in motion. The sampling system 1 may also include a rotating loop 21 for rotating the activated carbon particles. The sampling device 2 may include a collector system that may include the rotating loop 21 and the collector 3. The collector may be located inside the housing 22. The rotating loop 21 may be located outside the housing 22 or at least partially outside the housing 22. The activated carbon particles may move inside the collector 3 and inside the rotating loop 21. The activated carbon particles may move from the collector to the rotating loop 21 and from the rotating loop 21 to the collector 3. The rotating loop 21 may be in fluid contact with the collector 3. The rotating loop 21 may impart rotation (rotation) to the activated carbon particles inside the housing 22. The collector 3 may have the same dimensions as the housing 22. The sampling system 1 may also include a pump 19 to rotate the activated carbon particles inside the collector 2 and the rotating loop 21. The rotating loop 21 may include the pump 19. The circulation of the particles can increase the gold concentration on the particles. The sampling device 2 can receive the clear liquid 8 from the sample filter 6 through a conduit 26. The clear liquid 8 can enter the housing 22 from the bottom and exit the housing 22 from the top. The rotating loop 21 can receive the clear liquid 8 from the bottom of the housing 22 and rotate the clear liquid 8 back into the housing 22 from the top. Thus, the clear liquid 8 inside the housing can have bidirectional movement from top to bottom and from bottom to top. This can increase the gold concentration on the activated carbon particles. The analyzer 4 can measure the gold concentration through the transparent wall of the housing 22. According to an exemplary embodiment, Figure 3 The housing may also include a window 25.

[0036] According to an exemplary embodiment, the collector 3 includes activated carbon particles configured to be stationary or in motion.

[0037] According to an exemplary embodiment, the collector device 3 includes a collector filter or a collector filter that includes activated carbon particles.

[0038] According to an exemplary embodiment, the sampling device 2 includes a rotating loop 21, in which activated carbon particles are configured to circulate.

[0039] According to an exemplary embodiment, collector 3 is configured to increase the gold concentration (proportionally) to 0.1-100 ppm.

[0040] According to an exemplary embodiment, the measurement system further includes an analyzer 4 configured to measure the concentration of gold from the collector 3 for generating measurement information 9.

[0041] According to an exemplary embodiment, the analyzer 4 is configured to continuously or intermittently measure the concentration of gold from the collector 3 to form measurement information 9.

[0042] According to an exemplary embodiment, the gold concentration from the collector is measured at intervals of every 1-60 minutes, every 1-30 minutes, or every 1-10 minutes.

[0043] According to an exemplary embodiment, the analyzer 4 is configured to measure the concentration of gold from the collector 3 after gold has been configured to be enriched in activated carbon for a period of time, in order to form measurement information 9.

[0044] According to an exemplary embodiment, gold has been configured to be enriched in activated carbon for a period of time ranging from 10 seconds to 550 minutes, or from 30 seconds to 300 seconds.

[0045] According to an exemplary embodiment, the analyzer 4 is configured to be arranged in connection with the sampling device 2, such that at least one side of the collector 3 is configured to face the analyzer 4 in order to measure the concentration of gold from the collector 3. The analyzer 4 can measure the gold concentration through the window 25 or through the transparent outer surface or wall of the housing 22. The window 25 can be a see-through or transparent window. The collector 3 can be located near or in contact with the window 25. The analyzer 4 can measure the gold concentration through the window 25.

[0046] According to an exemplary embodiment, after gold has been configured to accumulate in activated carbon for a period of time, collector 3 is configured to be removed from sampling device 2. Collector 3 can then be arranged to connect to analyzer 4 such that at least one side of collector 3 can be configured to face analyzer 4 for measuring the concentration of gold from collector 3.

[0047] According to an exemplary embodiment, the measurement information 9 from the analyzer is configured to form a gold loading curve, wherein the angle coefficient of the gold loading curve is configured to determine the amount of gold in the clear liquid.

[0048] According to an exemplary embodiment, the analyzer 4 is a laser-induced breakdown spectroscopy (LIBS) or X-ray fluorescence (XRF) spectroscopy.

[0049] According to an exemplary embodiment, the measurement accuracy of the analyzer 4 is configured to be adjusted by changing the particle size of the activated carbon or by adjusting the measurement time.

[0050] According to an exemplary embodiment, the measurement system 1 further includes a control unit 5 configured to receive measurement information 9 from the analyzer 4 and control the CIL system 10. The measurement information 9 provided by the analyzer 4 to the control unit 5 can help maintain optimal carbon and cyanide efficiency and enable more efficient control of the CIL system 10. Utilizing real-time data to continuously optimize operation may be a necessary step to maximize gold recovery.

[0051] A gold loading curve can be generated from the measurement results. The amount of gold in the original clear solution 8 and sample 12 can be inferred from the coefficients of the loading curve.

[0052] According to an exemplary embodiment, the carbon immersion (CIL) system 10 includes at least one measurement system 1 according to any of the above embodiments.

[0053] Specifically, it should be understood that any method for preparing gold samples according to this specification can be used to operate the measurement system according to this specification. Accordingly, any measurement system according to this specification can be operated according to the methods described herein.

[0054] Figure 4 An example of a method for preparing a gold sample for analysis by an analyzer using a measurement system 1 is shown. The measurement system 1 may include a sample filter 6 and a sampling device 2, the sampling device including a housing 22 and a collector 3 located at least partially inside the housing 22. The collector 3 may include activated carbon configured to enrich dissolved gold from a clear solution 8.

[0055] In operation 400, the method may include receiving a sample 12 from the carbon immersion (CIL) system 10 through a sample filter 6 and filtering the sample 12 to form a clear liquid 8.

[0056] In operation 410, the method may include receiving the clear liquid 8 through the sampling device 2 and causing the clear liquid 8 to flow at least partially through the collector 3.

[0057] In operation 420, the method may include contacting the supernatant 8 with the activated carbon of the collector 3 to enrich the gold in the activated carbon.

[0058] In operation 430, the method may include measuring the amount of gold enriched in activated carbon.

[0059] It will be apparent to those skilled in the art that the basic concept of this invention can be implemented in different ways as technology advances. Therefore, this invention and its embodiments are not limited to the examples described above, but can be varied within the scope of the claims.

[0060] It should be understood that any of the benefits and advantages described above may apply to one embodiment or several embodiments. The embodiments are not limited to those that solve any or all of the above problems or those that have any or all of the described benefits and advantages.

[0061] The term "comprising" is used in this specification to mean including (one or more) features or (one or more) actions that follow it, but does not exclude the presence of one or more additional features or actions. It should also be understood that a reference to "one" item means one or more of those items.

Claims

1. A measurement system for preparing at least one gold sample for analysis by an analyzer, wherein, The measurement system includes: A sample filter is configured to receive a sample from a carbon impregnation system and filter the sample to form a clear liquid; and Sampling device, the sampling device comprising: shell; and A collector, at least partially located inside the housing, wherein the collector comprises activated carbon configured to enrich dissolved gold from the clarified liquid; wherein, The sampling device is configured to receive the clear liquid, which is configured to flow at least partially through the collector; The clarified liquid is configured to contact the activated carbon of the collector to enrich gold on the activated carbon; and The amount of gold enriched on the activated carbon was configured for analysis.

2. The measurement system according to claim 1, wherein, The collector includes activated carbon particles configured to be stationary or in motion.

3. The measurement system according to claim 1 or 2, wherein, The collector device includes a collector filter, which includes the activated carbon particles.

4. The measurement system according to claim 2 or 3, wherein, The sampling device includes a rotating loop, and the activated carbon particles are configured to circulate within the rotating loop.

5. The measurement system according to claim 1 or 2, wherein, The collector is configured to amplify the gold concentration to 0.1-100 ppm.

6. The measurement system according to claim 1 or 2, wherein, The measurement system also includes an analyzer configured to measure the concentration of gold from the collector to generate measurement information.

7. The measurement system according to claim 6, wherein, The analyzer is configured to: The concentration of gold from the collector is measured continuously or intermittently to form measurement information; or The concentration of gold from the collector is measured after gold has been configured to be enriched in the activated carbon for a period of time, in order to form measurement information.

8. The measurement system according to claim 7, wherein, The concentration of gold from the collector is measured at intervals of every 1-60 minutes, preferably every 1-30 minutes, and more preferably every 1-10 minutes; or The gold has been configured to be enriched in the activated carbon for a period of time ranging from 10 seconds to 550 minutes, preferably from 30 seconds to 300 seconds.

9. The measurement system according to claim 7 or 8, wherein, After gold has been configured to enrich in the activated carbon for the specified time period, the collector is configured to be removed from the sampling device and arranged to be connected to the analyzer, such that at least one side of the collector is configured to face the analyzer in order to measure the concentration of gold from the collector.

10. The measurement system according to claim 6 or 7, wherein, The analyzer is configured to be arranged in connection with the sampling device such that at least one side of the collector is configured to face the analyzer in order to measure the concentration of gold from the collector.

11. The measurement system according to claim 1 or 2, wherein, Measurement information from the analyzer is configured to form a gold loading curve, wherein the angle coefficient of the gold loading curve is configured to determine the amount of gold in the clear solution.

12. The measurement system according to claim 1 or 2, wherein, The measurement accuracy of the analyzer is configured to be adjusted by changing the particle size of the activated carbon or by adjusting the measurement time.

13. The measurement system according to claim 1 or 2, wherein, The measurement system also includes a control unit configured to receive measurement information from the analyzer and control the carbon immersion system.

14. A carbon impregnation system comprising at least one measuring system according to any one of claims 1 to 13.

15. A method for preparing a gold sample for analysis by an analyzer using a measurement system according to any one of claims 1 to 13, wherein, The measurement system includes: Sample filters; and Sampling device, the sampling device comprising: shell, and A collector, at least partially located inside the housing, wherein the collector comprises activated carbon configured to enrich dissolved gold from the supernatant; wherein the method comprises: Samples from the carbon impregnation system are received through a sample filter, and the samples are filtered to form a clear liquid; The sampling device receives the clear liquid and allows the clear liquid to flow at least partially through the collector; The clarified liquid is brought into contact with the activated carbon of the collector to enrich the gold in the activated carbon; and The amount of gold enriched in the activated carbon was measured.

Images