Parallel Solution Extraction Circuits for Metal Recovery
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Traditional metal recovery processes using single-circuit solution extraction systems lead to inefficiencies and high costs due to metal losses in raffinate solutions and frequent downtime during maintenance, especially in copper recovery operations.
Innovation Solution
A system and process utilizing two metal-bearing solutions and two solution extraction circuits, with multiple extractors and stripping units, to enhance metal recovery efficiency by producing high-grade raffinates and reducing primary metal concentration in raffinate solutions, allowing for robust recovery and improved facility utilization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single-circuit solution extraction system is used, then the device complexity is reduced, but the productivity and reliability decrease due to frequent downtime during maintenance
Solution Approach 1:
The solution extraction system is divided into multiple independent circuits (first circuit, second circuit, third circuit), each capable of processing metal-bearing solutions separately. This segmentation allows one circuit to undergo maintenance while others continue operating, thereby maintaining productivity while managing system complexity through modular design.
Solution Approach 2:
The parallel multi-circuit configuration ensures continuous metal recovery operations. When one circuit is taken offline for maintenance, the other circuits continue to process metal-bearing solutions, eliminating downtime and ensuring uninterrupted productivity in metal value extraction.
2Device complexity
If a single-circuit solution extraction system is used, then the device complexity is reduced, but the reliability decreases due to complete system downtime during maintenance
Solution Approach 1:
The system is segmented into independent parallel circuits that can operate autonomously. This modular architecture isolates maintenance activities to specific circuits, preventing system-wide downtime and ensuring operational reliability through redundant processing paths.
Solution Approach 2:
The system operates with variable numbers of active circuits based on maintenance schedules and production demands. By dynamically adjusting which circuits are operational, the system maintains reliable metal recovery throughput while accommodating necessary maintenance interruptions in individual circuits.
3Ease of manufacture
If traditional solution extraction is used, then the process is simple, but metal losses occur in raffinate solutions reducing manufacturing precision
Solution Approach 1:
The system recovers metals from raffinate solutions that would traditionally be discarded. By processing raffinate through the solution extraction circuits, valuable metal components are recovered and returned to production, eliminating waste while maintaining process simplicity through existing equipment utilization.
Solution Approach 2:
The system adjusts extraction parameters and circuit configurations to optimize metal recovery from raffinate solutions. By modifying operational parameters such as reagent concentrations and flow rates, the system achieves thorough metal extraction from previously waste streams, minimizing substance loss while keeping the process manageable.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach increases primary and secondary metal recovery efficiency, reduces plant downtime, and optimizes metal extraction by using multiple solution extraction circuits to handle varying metal concentrations and maintain continuous operation even during maintenance.
Implementation Method 1
The aqueous leach solution is contacted with an organic solution comprising a metal extraction reagent, for example, an aldoxime and/or ketoxime or a mixture thereof. The metal extraction reagent extracts the metal from the aqueous phase into the organic phase.
Data Source
AI summary
A process and system is provided for recovery of one or more metal values using solution extraction techniques and for metal value recovery. In an exemplary embodiment, the solution extraction system comprises a first solution extraction circuit and a second solution extraction circuit. A first metal-bearing solution is provided to the first and second circuit, and a second metal-bearing solution is provided to the first circuit. The first circuit produces a first rich electrolyte solution, which can be forwarded to primary metal value recovery, and a low-grade raffinate, which is forwarded to secondary metal value recovery. The second circuit produces a second rich electrolyte solution, which is also forwarded to primary metal value recovery. The first and second solution extraction circuits have independent organic phases and each circuit can operate independently of the other circuit.