Cesium Rubidium Recovery from Secondary Ore via Atomic Sorting
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Solution Overview
Problem
The recovery of cesium and rubidium from secondary ore is costly and inefficient due to the presence of undesirable impurities like lithium, which interferes with the commercial use of cesium-containing fractions in industries such as hydrocarbon recovery, as existing methods struggle to effectively separate these elements and control impurity levels during wet chemical processing.
Innovation Solution
A method involving the crushing of secondary ore to create sorted grades based on atomic number and material density, using a sorter to separate Grade 1 pieces with higher cesium oxide content, followed by optional acid treatment to extract cesium and rubidium, resulting in a purified ore with controlled lithium and other impurity levels, suitable for producing cesium-containing fluids like cesium formate.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If wet chemical processing is used to recover cesium from secondary ore, then cesium can be extracted, but lithium and other impurities remain in the recovered cesium fraction
Solution Approach 1:
The patent segments the ore processing into distinct stages: (1) physical sorting by atomic number and density to separate cesium-containing minerals from lithium-containing minerals, (2) selective dissolution to extract cesium while leaving lithium behind, and (3) purification steps to remove remaining impurities. This segmentation allows cesium recovery while controlling lithium content in the final product.
Solution Approach 2:
The patent extracts lithium from the cesium-containing fraction through selective dissolution and purification processes. By using reagents that selectively dissolve lithium compounds while leaving cesium compounds undissolved, the method removes lithium impurities from the recovered cesium fraction, achieving high purity cesium product.
2Quantity of substance
If traditional wet chemical processing is used, then cesium can be recovered, but the process is time-consuming and expensive
Solution Approach 1:
The patent applies preliminary physical sorting by atomic number and density before wet chemical processing. This preliminary action separates cesium-containing minerals from the bulk of the ore and from lithium-containing minerals, reducing the amount of material that requires time-consuming chemical processing and lowering overall processing time and cost.
Solution Approach 2:
The patent replaces traditional mechanical separation methods with atomic number-based separation using detection systems that measure the atomic number of mineral particles. This allows for more efficient and accurate separation of cesium-containing minerals from other minerals, reducing the time and cost of processing.
3Quantity of substance
If lithium-containing phosphate minerals are present in secondary ore, then cesium can be recovered, but lithium interferes with commercial use in hydrocarbon recovery
Solution Approach 1:
The patent segments the mineral processing into physical separation of cesium-containing minerals from lithium-containing minerals, followed by selective dissolution. This segmentation ensures that lithium interferes with the cesium recovery process but does not contaminate the final cesium product, making the recovered cesium suitable for hydrocarbon recovery applications.
Solution Approach 2:
The patent converts the harmful presence of lithium in secondary ore into a beneficial separation opportunity. By using atomic number-based detection and selective dissolution, the method exploits the difference in atomic numbers between lithium and cesium to achieve clean separation, turning the problematic lithium contamination into a controlled purification step.
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 significantly enhances the recovery of cesium and rubidium while reducing impurity levels, enabling the production of high-density drilling fluids and other industrial applications by effectively separating cesium and rubidium from secondary ore, thereby improving the efficiency and cost-effectiveness of the process.
Implementation Method 1
the first sorter determines whether each individual piece of crushed ore is a 'Grade 1 piece' or a 'Grade 2 piece,' based on the first sorter conducting at least one scan of each individual piece and determining or calculating atomic number and/or material density of each individual piece
Implementation Method 2
the first sorter determines whether each individual piece of crushed ore is a 'Grade 1 piece' or a 'Grade 2 piece,' based on the first sorter conducting at least one scan of each individual piece and determining or calculating atomic number and/or material density of each individual piece
Implementation Method 3
it is very difficult and expensive to separate cesium from certain undesirable metals or minerals that can typically be found with deposits of cesium-containing secondary ore... beginning with acid digestion
Data Source
AI summary
A method to recover cesium, rubidium, or both from secondary ore is described and involves using scans and sorting techniques. Refined secondary ore is further described.