Space-time segmented synergistic leaching process for treating copper oxide and copper sulfide symbiotic copper ore
By using a spatiotemporal synergistic leaching process that controls pH and temperature in stages within a single reactor and employs a composite oxidant, the problems of complex processes and high investment in traditional processes have been solved. This process enables highly efficient leaching of copper ore containing copper oxide and copper sulfide, thereby improving copper recovery and economic benefits.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- YUNNAN JINXUN ELECTRONIC COMMERCE CO LTD
- Filing Date
- 2026-03-13
- Publication Date
- 2026-05-12
AI Technical Summary
Traditional hydrometallurgical processes suffer from complex processes, high investment costs, and low operating efficiency when processing copper ores containing copper oxide and copper sulfide. In particular, when processing copper sulfide, a passivation film is easily formed, leading to a decrease in leaching rate and recovery rate.
A time-space segmented synergistic leaching process is adopted, in which pH, temperature and oxidant are controlled in stages in a single reactor, combined with ultrasonic or microwave treatment, to achieve synergistic leaching of copper oxide and copper sulfide. A composite oxidant composed of FeCl3 and H2O2 is used to enhance the oxidation effect.
It increases the total copper leaching rate to ≥95%, simplifies the process, reduces equipment investment and operating costs, and improves mass and heat transfer efficiency and economic benefits.
Abstract
Description
Technical Field
[0001] This invention relates to the field of hydrometallurgical technology, and in particular to a spatiotemporal segmented synergistic leaching process for treating copper ore containing copper oxide and copper sulfide. Background Technology
[0002] The current state of traditional hydrometallurgical processes: Copper hydrometallurgical leaching technology faces core technological challenges when processing mixed copper ores (copper oxide and copper sulfide coexisting). Traditional process routes mainly include the traditional two-stage process, heap leaching, and combined beneficiation and metallurgy process. These methods have structural problems such as complex processes, high investment costs, and low operating efficiency when processing complex mixed ores.
[0003] The traditional two-stage process is the mainstream process that processes copper oxide and copper sulfide in separate stages: First stage: Treat copper oxide under low acidity (pH 2.0-2.2) and temperature (40-50℃) conditions; The second section discusses the technical defects of treating copper sulfide by increasing acidity (pH 1.6-1.8) and temperature (60-90℃) and adding oxidants. The traditional two-stage process is complex, requiring two independent sets of equipment and control systems; frequent solid-liquid separation increases operating procedures and equipment investment; high energy consumption (two-stage heating and multiple equipment operation); large footprint (multiple reactors and separation equipment); and frequent manual operation, increasing labor costs. The new section heap leaching process achieves segmented treatment through spatial partitioning: the ore heap is divided into different areas, and the acidity and oxidant dosage are controlled separately. The leaching is achieved through a leaching system. However, the technical drawbacks are: the heterogeneity of the ore heap is serious, making it difficult to achieve uniform leaching; online monitoring and precise control are difficult; the leaching cycle is long, usually requiring several months to several years; and the effect of impurity control is limited, with impurities easily accumulating. The combined beneficiation and smelting process integrates flotation and leaching technologies: copper sulfide and copper oxide are first separated by flotation, and then leached separately. Technical drawbacks include: the longest process and the most equipment required; high cost of flotation reagents; and reagent residues affecting subsequent leaching. Poor overall economic efficiency; Existing technologies also face challenges related to the passivation film on copper sulfide. Traditional methods generally encounter problems when processing copper sulfide. 0 Passivation film challenges; film characteristics: thickness 0.1-10 μm, resistivity 10¹ 0 -10¹² Ω·cm, incomplete oxidation of copper sulfide forms a hydrophobic and dense elemental sulfur film, which significantly reduces the leaching rate and leads to a decrease in recovery. Existing solutions increase the amount of oxidant, but this can easily cause over-oxidation and side reactions. Summary of the Invention
[0004] The purpose of this invention is to provide a spatiotemporal segmented synergistic leaching process for processing copper ore containing copper oxide and copper sulfide. This process aims to achieve efficient synergistic leaching of copper ore containing copper oxide and copper sulfide in a single reactor, overcoming the technical shortcomings of traditional multi-stage processes, such as complex flow, high investment costs, and low operating efficiency.
[0005] To achieve the above objectives, the present invention provides the following technical solution: A spatiotemporal segmented synergistic leaching process for treating copper ores containing both copper oxide and copper sulfide includes the following steps: S1, Preprocessing stage: S11. Raw material receiving and preliminary screening: The copper oxide and copper sulfide symbiotic copper ore raw material is sent to the pretreatment workshop by conveyor belt and pre-screened using a vibrating screen to remove lumpy materials with a particle size greater than 50mm. Qualified materials with a particle size not greater than 50mm enter the next step of processing. S12. Crushing and particle size control: The qualified material from step S11 is fed into a jaw crusher for coarse crushing. The material with a particle size of 25-50mm after coarse crushing is fed into a cone crusher for medium crushing. The material with a particle size of 10-25mm after medium crushing is fed into a ball mill for fine crushing, and finally CuO-CuS mineral powder with a particle size of no more than 2mm is obtained. S13. Washing and Desliming: The CuO-CuS ore powder is fed into a washing tank, and clean water is added for washing. The washing process removes the surface-adhered mud and soluble impurities, forming washed CuO-CuS ore powder. A spiral classifier is used for solid-liquid separation, and the washing water is recovered. The solid content of the washed CuO-CuS ore powder is controlled at 60-65%. S14. Mixing and homogenization: Mix multiple batches of washed CuO-CuS mineral powder in proportion to ensure uniformity of composition. Use a stirrer to mix thoroughly to form homogenized CuO-CuS mineral powder with uniform composition. Take samples for testing to ensure that the CuO content is 20-30%, the CuS content is 15-25%, and the content of other minerals is 50-65%. S15. Batching and storage: According to the requirements of the subsequent leaching process, limestone powder is added to the homogenized CuO-CuS ore powder as a regulator, and the adjusted CuO-CuS ore powder is stored in the silo. S2. The adjusted CuO-CuS ore powder from step S1 enters the leaching reactor. The leaching process is divided into a time-series copper oxide stage, a time-series copper sulfide stage, and a time-series co-optimization stage, wherein: S21, Timing-Copper Oxide Segment: The adjusted CuO-CuS mineral powder is added to the reactor, the pH is adjusted to 1.0-2.0, the temperature is controlled at 70-85°C, the stirring speed is 100-200 rpm, the treatment time is 4-6 hours, and the redox potential (ORP) is controlled in the range of 200-400 mV. Copper oxide preferentially reacts with acid to form Cu²⁺, which exposes or partially leaches copper oxide, forming the copper oxide segment end product. S22, Timing-Copper Sulfide Section: A composite oxidant consisting of FeCl3 and H2O2 is added to the copper oxide stage end product. The pH is adjusted to 1.5-2.5, the temperature is controlled at 75-85°C, the stirring speed is 150-250 rpm, the treatment time is 6-8 hours, and the redox potential (ORP) is controlled within the range of 400-600 mV. Under the action of the composite oxidant, copper sulfide is oxidized and decomposed to generate Cu²⁺ and elemental sulfur. After the copper sulfide dissolves, the bound or encapsulated copper oxide is leached out, forming the copper sulfide stage end product. The concentration of FeCl3 in the composite oxidant is controlled at 0.1-0.3 mol / L, and the concentration of H2O2 is controlled at 0.05-0.15 mol / L. S23, Timing-Cooperative Optimization Section: A composite oxidant consisting of FeCl3 and H2O2 is added to the end product of the copper sulfide stage, and ultrasonic or microwave treatment is initiated. Ultrasonic or microwave treatment is used to break up inclusions, including both original and newly formed inclusions during the leaching process, to achieve maximum copper leaching. The pH is adjusted to 1.8-2.2, the temperature is controlled at 75-80°C, the stirring speed is 200-300 rpm, the treatment time is 4-6 hours, and the oxidation-reduction potential (ORP) is controlled within the range of 500-600 mV, forming a synergistically optimized end product. The leaching of remaining copper sulfide is enhanced through spatiotemporal synergistic effects, increasing the total copper leaching rate to ≥95%. S3. Solid-liquid separation and product recycling: The final product of the co-optimization stage is subjected to solid-liquid separation to obtain leaching residue and leaching solution. The leaching solution is then subjected to solvent extraction-electrolytic deposition process to finally obtain copper products.
[0006] Preferably, in step S21, the time of the copper oxide phase is controlled at 5 hours, the pH is controlled at 1.5, the temperature is controlled at 75°C, and the stirring speed is controlled at 150 rpm.
[0007] Preferably, in step S21, the solid-liquid ratio of the time-copper oxide segment is controlled to be 1:4-1:6.
[0008] Preferably, in step S22, the time of the time-copper sulfide stage is controlled at 7 hours, the pH is controlled at 2.0, the temperature is controlled at 80°C, and the stirring speed is controlled at 200 rpm.
[0009] Preferably, in step S23, the time of the time-co-optimization segment is controlled at 5 hours, the pH is controlled at 2.0, the temperature is controlled at 78°C, and the stirring speed is controlled at 250 rpm.
[0010] Preferably, in step S23, the ultrasonic power density is controlled at 2-5 W / L, and the microwave power density is controlled at 3-8 W / L.
[0011] Preferably, in step S23, the dissolved oxygen concentration is controlled to be ≥8 mg / L.
[0012] Preferably, in step S3, the solid-liquid separation is performed using a filter press or a centrifuge, and the separation temperature is controlled at 40-60°C.
[0013] Compared with the prior art, the beneficial effects of the present invention are: The present invention simplifies the process, achieving three-stage synergistic treatment in a single reactor, simplifying the process, improving efficiency, and achieving a higher total copper leaching rate than traditional processes; reduced equipment investment and lower operating costs lead to lower production costs; reducing the number of equipment helps reduce energy consumption and exhaust emissions; the spatiotemporal synergistic effect improves reactor volume utilization, enhances mass and heat transfer efficiency, and reduces system energy consumption. This invention achieves synergistic effect quantification through a composite oxidant mechanism composed of FeCl3 and H2O2. The reaction rate constant is increased by 15-17 orders of magnitude compared to FeCl3 alone, enhancing the oxidation capacity. The Fe³+ / Fe²+ redox couple (0.77V) and the H2O2 / OH- redox couple (1.78V) synergistically provide strong oxidation capacity, improving the film breaking effect, reducing SO film thickness, decreasing film resistance, improving economic efficiency, and lowering the unit oxidation cost compared to KMnO4 and O3. Detailed Implementation
[0014] The technical solution of the present invention will be described in detail below with reference to the embodiments, but the scope of protection is not limited thereto. Example
[0015] A spatiotemporal segmented synergistic leaching process for treating copper ores containing both copper oxide and copper sulfide includes the following steps: S1, Preprocessing stage: S11. Raw material receiving and preliminary screening: The copper oxide and copper sulfide symbiotic copper ore raw material is sent to the pretreatment workshop by conveyor belt and pre-screened using a vibrating screen to remove lumpy materials with a particle size greater than 50mm. Qualified materials with a particle size not greater than 50mm enter the next step of processing. S12. Crushing and particle size control: The qualified material from step S11 is fed into a jaw crusher for coarse crushing. The material with a particle size of 25-50mm after coarse crushing is fed into a cone crusher for medium crushing. The material with a particle size of 10-25mm after medium crushing is fed into a ball mill for fine crushing. Finally, CuO-CuS mineral powder with a particle size of no more than 2mm is obtained. S13. Washing and Desliming: The CuO-CuS ore powder is fed into a washing tank, and clean water is added for washing. The washing process removes the surface-adhered mud and soluble impurities, forming washed CuO-CuS ore powder. A spiral classifier is used for solid-liquid separation, and the washing water is recovered. The solid content of the washed CuO-CuS ore powder is controlled at 60-65%. S14. Mixing and homogenization: Mix multiple batches of washed CuO-CuS mineral powder in proportion to ensure uniformity of composition. Use a stirrer to mix thoroughly to form homogenized CuO-CuS mineral powder with uniform composition. Take samples for testing to ensure that the CuO content is 20-30%, the CuS content is 15-25%, and the content of other minerals is 50-65%. S15. Batching and storage: According to the requirements of the subsequent leaching process, limestone powder is added to the homogenized CuO-CuS ore powder as a regulator. The adjusted CuO-CuS ore powder is stored in a silo with a capacity of 10-50m³ to ensure continuous production needs. S2. The adjusted CuO-CuS ore powder from step S1 enters the leaching reactor. The leaching process is divided into a time-series copper oxide stage, a time-series copper sulfide stage, and a time-series co-optimization stage, wherein: S21, Timing-Copper Oxide Segment: The adjusted CuO-CuS mineral powder is added to the reactor, the pH is adjusted to 1.0-2.0, the temperature is controlled at 70-85°C, the stirring speed is 100-200 rpm, and the treatment time is 4-6 hours. Copper oxide preferentially reacts with acid to form Cu²⁺, which exposes or partially leaches copper oxide, forming the copper oxide segment end product. The time for the copper oxide stage was controlled at 5 hours, the pH at 1.5, the temperature at 75°C, and the stirring speed at 150 rpm. The timing-copper oxide segment controls the oxidation-reduction potential (ORP) within the range of 200-400mV; The solid-liquid ratio in the copper oxide stage is controlled at 1:4-1:6. S22, Timing-Copper Sulfide Section: A composite oxidant consisting of FeCl3 and H2O2 is added to the copper oxide section end product. The pH is adjusted to 1.5-2.5, the temperature is controlled at 75-85°C, the stirring speed is 150-250 rpm, and the treatment time is 6-8 hours. Under the action of the composite oxidant, copper sulfide is oxidized and decomposed to generate Cu²⁺ and elemental sulfur. After the copper sulfide dissolves, the bound or encapsulated copper oxide is leached out, forming the copper sulfide section end product.
[0016] The time for the copper sulfide stage was controlled at 7 hours, the pH at 2.0, the temperature at 80°C, and the stirring speed at 200 rpm. The concentration of FeCl3 in the composite oxidant is controlled at 0.1-0.3 mol / L, and the concentration of H2O2 is controlled at 0.05-0.15 mol / L. The timing-copper sulfide stage controls the redox potential (ORP) within the range of 400-600mV; S23, Timing-Cooperative Optimization Section: Add a composite oxidant consisting of FeCl3 and H2O2 to the copper sulfide leaching end product and start ultrasonic or microwave treatment. Use ultrasonic or microwave to break up the inclusions, including the original inclusions and the new inclusions generated during the leaching process, to achieve maximum copper leaching. Adjust the pH to 1.8-2.2, control the temperature at 75-80°C, stir at 200-300 rpm, and treat for 4-6 hours to form a synergistically optimized end product. The time-co-optimization phase was controlled at 5 hours, pH at 2.0, temperature at 78°C, and stirring speed at 250 rpm. In step S23, the ultrasonic power density is controlled at 2-5 W / L, and the microwave power density is controlled at 3-8 W / L. In step S23, oxygenation enhancement is performed to control the dissolved oxygen concentration to ≥8 mg / L; During the oxygenation enhancement process, the addition of hydrogen peroxide decomposes into oxygen in the leaching system. In actual operation, the ORP oxidation-reduction potential can be controlled in the leaching system to achieve this. In step S23, the co-optimization stage controls the redox potential (ORP) to be within the range of 500-600 mV; S3. Solid-liquid separation and product recycling: The final product of the co-optimization stage is subjected to solid-liquid separation to obtain leaching residue and leaching solution. The leaching solution is then subjected to solvent extraction-electrolytic deposition process to finally obtain copper products. In step S3, solid-liquid separation is performed using a filter press or a centrifuge, with the separation temperature controlled at 40-60°C. Product testing results: The copper leaching rate in Example 1 was 96.23%. Example
[0017] A time-space segmented co-leaching process for treating copper ores containing copper oxide and copper sulfide includes the following steps: Pretreatment stage: Take 1000 kg of symbiotic copper ore with a copper oxide content of 25% and a copper sulfide content of 20%, with a particle size ≤50 mm. Coarsely crush it to 25-50 mm using a jaw crusher, medium crush it to 10-25 mm using a cone crusher, and finely crush it to ≤2 mm using a ball mill. Add clean water for washing, controlling the solid-liquid ratio at 1:4, and wash for 20 minutes. Mix multiple batches evenly to ensure uniform composition, and add 2% limestone powder as a conditioner. Time-copper oxide stage: The pretreated material is added to a 316L stainless steel reactor (5m³), sulfuric acid is added to adjust the pH to 1.5, heated to 75°C, stirred at 150rpm, and treated for 5 hours; copper oxide is preferentially dissolved, and the ORP is controlled in the range of 200-400mV; the copper oxide stage final product is formed. Timing - Copper Sulfide Stage: A composite oxidant consisting of FeCl3 and H2O2 is added to the end product of the copper oxide stage. The composite oxidant contains 0.2 mol / L FeCl3 and 0.1 mol / L H2O2. The pH is adjusted to 2.0, the temperature is raised to 80°C, the stirring speed is 200 rpm, and the treatment lasts for 7 hours. Copper sulfide is oxidized and decomposed, and the ORP is controlled in the range of 400-600 mV. The end product of the copper sulfide stage is formed.
[0018] Timing-Synchronous Optimization Section: Ultrasonic and microwave enhancement with a power density of 3W / L and a power density of 5W / L were initiated, dissolved oxygen was maintained at ≥8mg / L, pH was adjusted to 2.0, temperature was 78°C, stirring speed was 250rpm, and treatment lasted for 5 hours; the leaching of the remaining copper sulfide was enhanced, forming the final product of the synergistic optimization section.
[0019] Solid-liquid separation and product recovery: The final product of the co-optimization stage is subjected to solid-liquid separation to obtain leaching residue and leachate. The leachate is then subjected to solvent extraction-electrolytic deposition to obtain copper products.
[0020] This embodiment utilizes the synergistic amplification effect of composite oxidants: the OH radical concentration reaches 10⁻ 6 -10⁻ 4 M is increased by 100-1000 times compared to using H2O2 alone; electron transfer flux is increased by 100-1000 times. Ultrasonic cavitation effect: microjets velocity 10²-10³ m / s, local peak temperature 5000 K; Microwave enhancement: selective heating, increasing the local reaction rate by 2-4 times; Oxygen enhancement: Maintain dissolved oxygen concentration ≥8mg / L to enhance ORR response.
[0021] Product testing results: Total copper leaching rate of 96.8%, reduced investment costs, and reduced operating costs.
[0022] Comparative Example 1 (Traditional Process) The traditional three-stage independent leaching process is adopted: 1. Copper oxide stage: separate reactor, conventional acid leaching; 2. Copper sulfide stage: separate reactor, conventional oxidative leaching; 3. Secondary copper sulfide stage: separate reactor, strong oxidative leaching; Results: Total copper leaching rate was 91.2%. Increased equipment investment and operating costs, plus the addition of 3 processes, were equivalent to tripling the process costs.
[0023] Comparative Example 2 (Single-condition leaching) Leaching was performed under a single reaction condition: temperature 80°C, pH 2.0, time 18 hours, stirring 200 rpm, without segmented control. Results: Total copper leaching rate was 89.5%, energy consumption increased, and equipment utilization rate decreased.
[0024] Comparative experimental data shows that: the process route of Comparative Example 1 separates the three time periods of copper oxide, copper sulfide and secondary copper sulfide, but the leaching rate still cannot reach that of Example 1 and Example 2. However, the equipment investment and process complexity are much higher than those of Example 1 and Example 2. The leaching rate of Comparative Example 2, which uses the existing traditional single-condition leaching process, is also significantly lower than that of Example 1 and Example 2. The spatiotemporal segmented synergistic leaching process of the present invention is significantly superior to traditional processes in terms of leaching efficiency, economic benefits, and environmental performance.
[0025] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.
Claims
1. A spatiotemporal segmented synergistic leaching process for treating copper ore containing both copper oxide and copper sulfide, characterized in that, Includes the following steps, S1, Preprocessing stage: S11. Raw material receiving and preliminary screening: The copper oxide and copper sulfide symbiotic copper ore raw material is sent to the pretreatment workshop by conveyor belt and pre-screened using a vibrating screen to remove lumpy materials with a particle size greater than 50mm. Qualified materials with a particle size not greater than 50mm enter the next step of processing. S12. Crushing and particle size control: The qualified material from step S11 is fed into a jaw crusher for coarse crushing. The material with a particle size of 25-50mm after coarse crushing is fed into a cone crusher for medium crushing. The material with a particle size of 10-25mm after medium crushing is fed into a ball mill for fine crushing, and finally CuO-CuS mineral powder with a particle size of no more than 2mm is obtained. S13. Washing and Desliming: The CuO-CuS ore powder is fed into a washing tank, and clean water is added for washing. The washing process removes the surface-adhered mud and soluble impurities, forming washed CuO-CuS ore powder. A spiral classifier is used for solid-liquid separation, and the washing water is recovered. The solid content of the washed CuO-CuS ore powder is controlled at 60-65%. S14. Mixing and homogenization: Mix multiple batches of washed CuO-CuS mineral powder in proportion to ensure uniformity of composition. Use a stirrer to mix thoroughly to form homogenized CuO-CuS mineral powder with uniform composition. Take samples for testing to ensure that the CuO content is 20-30%, the CuS content is 15-25%, and the content of other minerals is 50-65%. S15. Batching and storage: According to the requirements of the subsequent leaching process, limestone powder is added to the homogenized CuO-CuS ore powder as a regulator, and the adjusted CuO-CuS ore powder is stored in the silo. S2. The adjusted CuO-CuS ore powder from step S1 enters the leaching reactor. The leaching process is divided into a time-series copper oxide stage, a time-series copper sulfide stage, and a time-series co-optimization stage, wherein: S21, Timing-Copper Oxide Segment: The adjusted CuO-CuS mineral powder is added to the reactor, the pH is adjusted to 1.0-2.0, the temperature is controlled at 70-85°C, the stirring speed is 100-200 rpm, the treatment time is 4-6 hours, and the redox potential (ORP) is controlled in the range of 200-400 mV. Copper oxide preferentially reacts with acid to form Cu²⁺, which exposes or partially leaches copper oxide, forming the copper oxide segment end product. S22, Timing-Copper Sulfide Section: A composite oxidant consisting of FeCl3 and H2O2 is added to the copper oxide stage end product. The pH is adjusted to 1.5-2.5, the temperature is controlled at 75-85°C, the stirring speed is 150-250 rpm, the treatment time is 6-8 hours, and the redox potential (ORP) is controlled within the range of 400-600 mV. Under the action of the composite oxidant, copper sulfide is oxidized and decomposed to generate Cu²⁺ and elemental sulfur. After the copper sulfide dissolves, the bound or encapsulated copper oxide is leached out, forming the copper sulfide stage end product. The concentration of FeCl3 in the composite oxidant is controlled at 0.1-0.3 mol / L, and the concentration of H2O2 is controlled at 0.05-0.15 mol / L. S23, Timing-Cooperative Optimization Section: Add a composite oxidant consisting of FeCl3 and H2O2 to the copper sulfide section end product and start ultrasonic or microwave treatment. Use ultrasonic or microwave to de-vibrate the inclusions, adjust the pH to 1.8-2.2, control the temperature at 75-80°C, stir at 200-300 rpm, treat for 4-6 hours, and control the redox potential (ORP) within the range of 500-600 mV to form a synergistically optimized section end product. S3. Solid-liquid separation and product recycling: The final product of the co-optimization stage is subjected to solid-liquid separation to obtain leaching residue and leaching solution. The leaching solution is then subjected to solvent extraction-electrolytic deposition process to finally obtain copper products.
2. The spatiotemporal segmented synergistic leaching process for treating copper oxide and copper sulfide symbiotic copper ore according to claim 1, characterized in that, In step S21, the time for the copper oxide stage is controlled at 5 hours, the pH is controlled at 1.5, the temperature is controlled at 75°C, and the stirring speed is controlled at 150 rpm.
3. The spatiotemporal segmented synergistic leaching process for treating copper ore coexisting with copper oxide and copper sulfide, as described in claim 1, is characterized in that... In step S21, the solid-liquid ratio of the time-copper oxide section is controlled to be 1:4-1:
6.
4. The spatiotemporal segmented synergistic leaching process for treating copper ore coexisting with copper oxide and copper sulfide, as described in claim 1, is characterized in that... In step S22, the time for the copper sulfide stage is controlled at 7 hours, the pH is controlled at 2.0, the temperature is controlled at 80°C, and the stirring speed is controlled at 200 rpm.
5. The spatiotemporal segmented synergistic leaching process for treating copper ore coexisting with copper oxide and copper sulfide, as described in claim 1, is characterized in that... In step S23, the time control of the timing-co-optimization section is 5 hours, the pH control is 2.0, the temperature control is 78°C, and the stirring speed control is 250 rpm.
6. The spatiotemporal segmented synergistic leaching process for treating copper ore coexisting with copper oxide and copper sulfide according to claim 1, characterized in that, In step S23, the ultrasonic power density is controlled at 2-5 W / L, and the microwave power density is controlled at 3-8 W / L.
7. The spatiotemporal segmented synergistic leaching process for treating copper oxide and copper sulfide symbiotic copper ores according to claim 1, characterized in that, In step S23, the dissolved oxygen concentration is controlled to be ≥8 mg / L.
8. The spatiotemporal segmented synergistic leaching process for treating copper oxide and copper sulfide symbiotic copper ore according to claim 1, characterized in that, In step S3, solid-liquid separation is performed using a filter press or a centrifuge, with the separation temperature controlled at 40-60°C.