Functionalized Polymer Collection Surface for Mineral Separation
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Solution Overview
Problem
Current methods for separating valuable mineral particles from unwanted material in pulp slurries, particularly in flotation cells, face challenges in controlling air bubble surface area flux and size distribution, leading to inefficiencies in separating hydrophobic minerals, especially for fine particle sizes and high specific gravity minerals.
Innovation Solution
The implementation of an enhanced mineral separation circuit (EMSC) using a coarse screen and a collection processor with a functionalized polymer-coated collection surface, which attracts and separates mineral particles of interest, combined with a reticulated foam structure for enhanced mechanical and chemical durability, allowing for improved recovery of hydrophobic minerals across a wide range of particle sizes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If flotation cells use air bubbles to separate hydrophobic minerals, then valuable material can be carried to the surface, but controlling air bubble surface area flux and size distribution becomes a complex multivariable control problem with no dependable real time feedback mechanisms
Solution Approach 1:
The patent extracts the control problem by removing air bubbles from the system and replacing them with synthetic polymer beads. This eliminates the complex multivariable control of air bubble surface area flux and size distribution, while maintaining the core flotation function of carrying hydrophobic minerals to the surface through buoyancy.
Solution Approach 2:
The patent introduces synthetic polymer beads as an intermediary substance to replace air bubbles. These beads serve as the floating medium that carries hydrophobic minerals, providing a simpler, more controllable alternative to air bubble flotation while achieving the same separation objective.
2Manufacturing precision
If traditional flotation methods are used, then hydrophobic minerals can be separated, but fine particle sizes and high specific gravity minerals are not effectively recovered
Solution Approach 1:
The patent changes the physical parameters of the floating medium by using synthetic polymer beads with controlled density and size rather than air bubbles. This allows effective recovery of fine particle sizes and high specific gravity minerals that traditional flotation methods miss, while maintaining separation precision for hydrophobic minerals.
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 enables efficient separation of valuable minerals with high selectivity and reduced entrainment of gangue particles, improving recovery rates and process efficiency by effectively capturing minerals from 5 mm down to fine particle sizes without the limitations of existing technologies.
Implementation Method 1
a collection surface configured with a functionalized polymer comprising a plurality of molecules having a functional group configured to attract the mineral particles of interest to the collection surface
Implementation Method 2
a reticulated foam structure for enhanced mechanical and chemical durability
Data Source
AI summary
A system is provided for processing a circulating load in comminution circuit of a mineral separation process for separating mineral particles of interest from an ore, featuring: a coarse screen and an enhanced mineral separation circuit (EMSC). The coarse screen may be configured to receive a cyclone underflow having mineral particles of interest and forming part of the circulating load of the comminution circuit, and provide coarse screen feeds for further processing. The enhanced mineral separation circuit may include a collection processor configured to receive one of the coarse screen feeds, and may also include at least one collection apparatus located in the collection processor, the at least one collection apparatus having a collection surface configured with a functionalized polymer comprising a plurality of molecules having a functional group configured to attract the mineral particles of interest to the collection surface, and provide enhanced mineral separation circuit feeds for further processing in the system.