Laser Ion Separation for Low-Waste Metallurgical Refining
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current metallurgical extraction and refining processes are energy-intensive and generate significant chemical wastes, leading to environmental issues and inefficiencies in obtaining high-purity metals, with existing isotope enrichment methods being time-consuming and having low output.
Innovation Solution
A system comprising a large bandwidth laser source, ionization and acceleration unit, and separation unit, where successive pulses of laser energy ionize and accelerate target atoms, allowing for separation and collection of different ion species using a magnetic separator, enabling efficient extraction and refining of metals with reduced waste.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If traditional metallurgical processes (hydrometallurgy, electrometallurgy, pyrometallurgy) are used for extraction and refining, then metals can be obtained, but energy consumption is high and chemical wastes are generated
Solution Approach 1:
The patent replaces thermal and chemical processes with a laser-based physical process. Ultrashort pulsed lasers ionize metal atoms directly from the ore surface, creating ion beams that are accelerated and separated by magnetic fields, eliminating the need for high-temperature furnaces and chemical reagents used in traditional hydrometallurgy, electrometallurgy, and pyrometallurgy
Solution Approach 2:
The system uses successive ultrashort laser pulses to continuously ionize atoms from the ore surface. The pulsed nature of the laser allows for repeated ionization events, maintaining high extraction rates while allowing cooling periods between pulses, thus improving efficiency without excessive energy input
2Quantity of substance
If traditional metallurgical processes are used for extraction and refining, then metals can be obtained, but chemical wastes are generated leading to environmental issues
Solution Approach 1:
The patent replaces chemical reactions and thermal processes with laser-induced ionization and magnetic separation. This physical process eliminates the need for chemical reagents that would generate waste products, thereby preventing soil contamination and air pollution associated with traditional metallurgical methods
Solution Approach 2:
The patent converts the harmful aspect of traditional processes (chemical waste generation) into a benefit by using a clean physical process. The laser ionization method produces no chemical waste, and the system can even process waste materials to extract valuable metals, turning environmental problems into opportunities
3Quantity of substance
If large furnaces are used for metallurgical processes, then metal extraction can be performed, but the infrastructure is large and takes a long time to ramp-up for production
Solution Approach 1:
The patent replaces large-scale thermal furnaces with a compact laser-based system. The laser can be quickly activated and adjusted, eliminating the long ramp-up time required to heat and stabilize traditional furnaces. This enables rapid deployment and quick transition to production mode
Solution Approach 2:
The system processes material in discrete layers through successive laser pulses, removing atoms layer by layer from the ore surface. This segmented approach allows for precise control and rapid processing without requiring large thermal mass, enabling quick startup and flexible production rates
4Manufacturing precision
If state-of-the-art isotope enrichment methods are used, then high purity metals can be obtained, but the output is very low and the process is time consuming
Solution Approach 1:
The patent replaces slow chemical or thermal enrichment methods with rapid magnetic separation of ion beams. Ions are separated based on their mass-to-charge ratio in a magnetic field, achieving high purity separation in seconds rather than hours or days, thus simultaneously improving both purity and production rate
Solution Approach 2:
The laser pre-ionizes all atoms in the sample before separation, creating a ready-to-separate ion beam. This preliminary ionization step enables immediate magnetic separation without requiring additional preparation time, thus increasing the overall enrichment speed while maintaining high purity through precise magnetic separation
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 method achieves efficient extraction and refining of metals with high output rates, greater than 10 g per hour, while minimizing energy consumption and waste generation by using ultrashort pulsed lasers to atomize and separate ions layer by layer, effectively valorizing raw materials into pure elements.
Implementation Method 1
the laser source delivers successive pulses of fixed central wavelength and bandwidth to a surface of a target positioned inside the ionization and acceleration unit, surface atoms of the target being ionized by the pulses
Implementation Method 2
accelerated from the surface of the target and focused to the separation unit
Implementation Method 3
the separation unit separating received atoms into different ions species
Data Source
AI summary
A method and a system, the system, comprising a laser source, a ionization and acceleration unit, a separation unit, and a collecting unit, wherein the laser source comprises a large bandwidth laser delivering successive pulses of fixed central wavelength and bandwidth to a surface of a target positioned inside the ionization and acceleration unit, surface atoms of the target being ionized by the pulses, accelerated from the surface of the target to a kinetic energy in the range between 100 eV and 10 KeV, and focused to the separation unit, the separation unit separating received atoms into different ions species, and the collecting unit separately collecting the different ion species. The method comprises positioning a target inside a resistive tube, delivering successive pulses of same selected wavelength and bandwidth from a large bandwidth laser generating a beam of fixed central wavelength and bandwidth to a surface of the target to ionize atoms of the surface of the target, accelerate the ionized atoms to a kinetic energy in a range between 100 eV and 10 KeV, under an electric field in a resistive tube, directing the ionized atoms to a magnetic separator, and collecting ions species of the target separately in cup collectors.