Bio-Based DCR Collector Composition for Selective Ore Flotation
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Solution Overview
Problem
There is a need for an environmentally friendly replacement for fossil fuel-based collectors in ore flotation processes to enhance selectivity and improve the recovery of valuable constituents.
Innovation Solution
A bio-based collector composition comprising decarboxylated rosin acid (DCR) is used in froth flotation processes, characterized by specific molecular and chemical properties, to enhance the adhesion of valuable minerals to bubbles, thereby facilitating their separation from gangue.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If fossil fuel-based collectors are used in ore flotation processes, then flotation efficiency is maintained, but environmental harm increases
Solution Approach 1:
The patent changes the chemical composition parameters of the collector from fossil fuel-based to bio-based decarboxylated rosin acid, maintaining the necessary hydrophobicity and surface activity properties while eliminating environmental harm associated with fossil fuels
Solution Approach 2:
The patent employs bio-based collectors that are biodegradable and environmentally friendly, replacing persistent fossil fuel-based collectors with naturally decomposable alternatives that maintain effectiveness during the flotation process
2Object-affected harmful factors
If bio-based collectors are used to replace fossil fuel collectors, then environmental friendliness improves, but selectivity and recovery may deteriorate
Solution Approach 1:
The patent optimizes the molecular structure parameters of the decarboxylated rosin acid to achieve appropriate hydrophobicity and surface activity, ensuring that the bio-based collector maintains high selectivity for valuable minerals while being environmentally friendly
Solution Approach 2:
The patent uses decarboxylated rosin acid with specific molecular characteristics that combine the benefits of natural origin with enhanced performance properties, creating a composite-like effect that improves both environmental friendliness and flotation selectivity
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 DCR collector achieves improved recovery and selectivity of minerals, comparable to or better than fossil fuel collectors, while reducing environmental impact.
Implementation Method 1
The components are introduced into the flotation apparatus sparged with air, to form bubbles. The hydrophobic particles attach to the bubbles, buoying them to the top of the apparatus.
Implementation Method 2
The hydrophobic particles attach to the bubbles, buoying them to the top of the apparatus.
Data Source
AI summary
The disclosure relates to a method for the beneficiation of an ore in a froth flotation process. The method comprises contacting an ore in a liquid medium to a collector composition comprising a plant-derived liquid decarboxylated rosin acid (DCR) collector. The DCR comprises 40 to 100 wt. % of tricyclic compounds having 18-20 carbon atoms, one or more C═C groups, and m/z (mass/charge) value of 220-280. The DCR has an oxygen content of <5%, a density of 0.9 to 1.0 g/cm3 at 20° C., and an acid value of <50 mg KOH/g.