Nanoemulsion Collector Agents for Silicate Mineral Separation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current froth flotation processes for separating silicate-containing minerals, such as iron ore, suffer from low selectivity and efficiency due to the large micelle size of conventional collector agents, leading to suboptimal recovery of valuable minerals and high silica content in the flotate.
Innovation Solution
The development of nanoemulsions with collector agents like ethermonoamines, etherdiamines, and quaternary ammonium compounds, processed through high-pressure homogenization to achieve droplet sizes in the nanometer range (1 nm to 20 μm), enhancing selectivity and efficiency in the flotation process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If conventional collector agents are used in froth flotation, then the process is simple and easy to operate, but the selectivity and efficiency are low due to large micelle size
Solution Approach 1:
The patent changes the physical parameter of collector agent size from micrometer scale to nanometer scale (1-100 nm), transforming the collector from conventional large micelles to nanoemulsion droplets. This parameter change enhances selectivity by improving the interaction between collectors and silicate minerals, allowing for more precise separation while maintaining operational simplicity through standardized flotation equipment.
2Productivity
If conventional collector agents with large micelle size are used, then the application is straightforward, but the recovery of valuable minerals is suboptimal and silica content in flotate is high
Solution Approach 1:
The patent applies parameter changes by reducing collector size to nanometer scale, which fundamentally improves both recovery and purity. The nanoemulsion droplets (1-100 nm) provide superior mineral surface interaction compared to conventional micrometer-scale collectors, resulting in higher iron ore recovery and lower silica content in the flotate while maintaining straightforward application procedures.
Solution Approach 2:
The patent creates a composite system by formulating nanoemulsions that combine collector agents with emulsifiers and stabilizers. This composite approach enhances the performance of individual collectors through synergistic effects, improving both recovery and purity simultaneously while maintaining ease of application through a unified formulation.
3Productivity
If collector agents are used in traditional flotation, then the process is well-established, but the separation efficiency is limited by large droplet size
Solution Approach 1:
The patent fundamentally changes the size parameter of collector droplets from micrometer to nanometer scale (1-100 nm). This parameter transformation dramatically improves separation efficiency and quality by enabling finer differentiation between iron ore and silicate minerals, while the nanoemulsion formulation maintains compatibility with established flotation processes.
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
The nanoemulsion approach significantly improves the selectivity and recovery of valuable minerals, reducing silica content and increasing the metallurgical performance of the flotation process, with improved droplet size distribution leading to higher iron recovery and lower silica content in the concentrate.
Implementation Method 1
processed through high-pressure homogenization to achieve droplet sizes in the nanometer range (1 nm to 20 μm)
Implementation Method 2
Reverse flotation is a common process applied in the art separating the gangue from the valuable minerals via the froth
Data Source
AI summary
The present invention relates to a process for concentration of silicate-containing minerals and ores by froth flotation, in particular to a reverse flotation process, in the presence of a finely dispersed collecting agent characterized by a specific droplet size distribution.