Dual Adsorbent Media for Metal Deposition Solution Purification
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Solution Overview
Problem
Existing methods for purifying process solutions in surface treatment, such as electrolytes for metal deposition, are limited in their ability to remove both organic and inorganic impurities effectively, often leading to increased operational costs and reduced solution lifespan due to filter clogging, high energy demands, and inability to handle dissolved substances.
Innovation Solution
A method involving the use of at least two distinct adsorbent media, including polymer resins and ion exchange resins, to selectively adsorb and remove organic and inorganic impurities from the process solution, with the ability to regenerate these media using specific solutions, allowing for continuous purification and adaptation to different impurities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If filtration methods are used to remove particles from process solutions, then particle removal efficiency is improved, but filter clogging and flow resistance increase
Solution Approach 1:
The invention extracts and removes particles from the process solution using filtration methods, separating the harmful particles from the useful electrolyte. The filter device is designed to continuously remove particles without significant flow resistance increase by implementing a system that can handle the filter cake formation without clogging.
2Measurement precision
If micro- or ultra-filtration with small pore size membranes is used, then particle retention power is improved, but flow resistance increases significantly
Solution Approach 1:
The invention applies different pore sizes and filtration characteristics to different regions or stages of the filtration process. The filter device may incorporate multiple filtration layers or zones with varying pore structures, allowing high retention power in critical areas while maintaining adequate flow channels in other regions to minimize overall flow resistance.
3Measurement precision
If UV/H2O2 oxidation is used to remove organic decomposition products, then organic impurity removal is improved, but inorganic contraries cannot be removed and additives must be redosed
Solution Approach 1:
The invention implements a multi-functional purification system that combines multiple treatment methods (filtration, oxidation, and other removal techniques) into a single integrated device. This universal system can handle both organic and inorganic impurities, eliminating the need for separate treatment processes and avoiding the drawback of having to redose additives after oxidation treatment.
4Measurement precision
If liquid-liquid extraction is used to remove impurities, then selective impurity removal is improved, but the method is limited to non-mixable extraction systems and cannot remove inorganic contraries
Solution Approach 1:
The invention merges multiple purification methods including filtration, oxidation, and extraction into a single integrated filter device. By combining these different purification mechanisms, the system achieves both selective organic impurity removal and inorganic contrary removal, overcoming the limitations of individual methods.
5Ease of operation
If extensive industrial instrumentation is used to maintain constant filter flow resistance, then flow resistance control is improved, but device complexity increases
Solution Approach 1:
The filter device is designed with self-regulating features that automatically maintain constant flow resistance without requiring extensive external instrumentation. The system may incorporate self-cleaning mechanisms, automatic filter replacement, or design features that naturally prevent flow resistance buildup, allowing the filter to maintain optimal performance through its own structural characteristics rather than complex control systems.
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, cost-effective removal of a wide range of impurities, including organic decomposition products and foreign ions, extending the service life of process solutions and reducing operational costs by allowing for independent regeneration of adsorbent media.
Implementation Method 1
contacting the process solution with at least two distinct adsorbent media to remove the impurities from the process solution, wherein the adsorbent media are distinct from each other with respect to species of impurities adsorbed thereon
Implementation Method 2
a second polymer resin is an ion exchange resin charged with an ion source corresponding to an ingredient contained in the process solution before the contacting, which ion source is at least partially transferred from the ion exchange resin into the process solution during the contacting
Data Source
AI summary
A method and apparatus involving at least two distinct adsorbent media for adsorptive removal of impurities from a metal deposition composition such as an electroless or electrolytic deposition composition.