Magnetic Agglomerate Separation via Surface Modification
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Solution Overview
Problem
Current methods for separating ores from mixtures using magnetic particles face inefficiencies due to insufficient binding strength and high yield, particularly in the separation of hydrophobic and hydrophilic metal compounds, leading to suboptimal cost-effectiveness and separation efficiency.
Innovation Solution
A process involving the contact of a mixture containing hydrophobic and hydrophilic metal compounds with magnetic particles in a dispersion medium, followed by gravitational separation and magnetic field application to isolate the hydrophobic metal compounds, optimizing the particle size ratio and using surface-modifying substances to enhance agglomeration stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If magnetic particles are used to separate ores from mixtures, then separation is achieved, but the binding strength between magnetic particles and ores is insufficient leading to low effectiveness
Solution Approach 1:
Surface-modifying substances act as intermediaries between magnetic particles and hydrophobic metal compounds. These substances modify the surface properties of magnetic particles to enhance their affinity for hydrophobic materials, thereby strengthening the binding strength and improving separation effectiveness simultaneously
Solution Approach 2:
The invention changes the surface parameters of magnetic particles by applying surface-modifying substances. This alters the surface energy and chemical properties of magnetic particles, enabling stronger and more selective binding to hydrophobic metal compounds while maintaining separation productivity
2Reliability
If magnetic separation is applied to the entire dispersion, then complete separation is achieved, but the treatment volume is large leading to high costs
Solution Approach 1:
The separation process is segmented into two stages: first, gravitational separation removes the majority of hydrophobic metal compounds from the dispersion; second, magnetic separation treats only the remaining smaller volume to achieve complete separation. This segmentation reduces the volume requiring expensive magnetic treatment while maintaining separation completeness
Solution Approach 2:
Gravitational separation is performed as a preliminary action before magnetic separation. This pre-concentration step removes bulk hydrophobic materials that would otherwise require magnetic separation, reducing the treatment volume and costs while ensuring complete separation in the subsequent magnetic step
3Productivity
If gravitational separation is used to separate materials, then separation based on settling velocity is achieved, but hydrophobic and hydrophilic metal compounds cannot be effectively distinguished
Solution Approach 1:
The invention applies surface-modifying substances that selectively bind to hydrophobic metal compounds, creating local quality differences on particle surfaces. This selective modification enables gravitational separation to effectively distinguish between hydrophobic and hydrophilic materials based on their different settling velocities, while maintaining high separation speed
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 process achieves efficient separation of hydrophobic metal compounds with reduced magnetic dispersion treatment volume, enhancing both separation efficiency and cost-effectiveness by stabilizing the magnetic particle-agglomerate bond and utilizing gravitational separation to pre-concentrate the magnetic material.
Implementation Method 1
the at least one first material and the at least one magnetic particle agglomerate to obtain a dispersion comprising magnetic agglomerates
Implementation Method 2
separation of at least part of the at least one second material due to its different settling velocity under gravitation compared to the magnetic agglomerates
Implementation Method 3
separation of the magnetic agglomerates from the dispersion of step (C) by application of a magnetic field
Data Source
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AI summary
The present invention relates to a process for the separation of at least one first material from a mixture comprising this at least one first material and at least one second material.