Microbubble Electrolyte Filtration to Preserve Bubble Density

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Solution Overview

Problem

Existing methods for producing micro bubble-containing electrolyte solutions result in a significant decrease in micro bubble density during filtration, making it difficult to achieve high concentrations of micro bubbles in the final solution.

Innovation Solution

A method involving filtration of a micro bubble-containing solvent with a cation concentration less than 20 mmol/l, and conditions such as a micro bubble density of 1×10^6 bubbles/ml or more in the solvent, and 1×10^5 bubbles/ml or more in the filtrate, to maintain high micro bubble concentrations.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If filtration sterilization is performed on micro bubble-containing electrolyte solution, then sterilization is achieved, but micro bubble density greatly decreases

Engineering Contradiction:

ImprovesterilizationVSAvoidmicro bubble density

Core Design Contradiction:

ReliabilityVSQuantity of substance

Solution Approach 1:

The patent applies preliminary action by performing filtration on the micro bubble-containing solvent before adding the electrolyte. This sequence prevents micro bubbles from adhering to filter fibers during filtration, as the electrolyte is not yet present to facilitate adhesion. The filtration is completed first to remove contaminants, then electrolyte is added to the already-filtered solvent, maintaining high micro bubble density while achieving sterilization.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The patent segments the production process into two distinct stages: (1) filtration of micro bubble-containing solvent, and (2) subsequent addition of electrolyte. This segmentation allows each step to be optimized independently - filtration removes impurities without electrolyte interference, and electrolyte addition occurs after filtration is complete, preventing micro bubble loss while achieving both sterilization and high micro bubble concentration.

Inventive Principle:

Principle #1Segmentation

2Reliability

If micro bubble density is increased in electrolyte solution, then preservation effectiveness is improved, but filtration becomes more difficult

Engineering Contradiction:

Improvepreservation effectivenessVSAvoidfiltration difficulty

Core Design Contradiction:

ReliabilityVSEase of manufacture

Solution Approach 1:

The patent performs filtration before adding electrolyte to achieve high micro bubble density. By filtering the solvent first when micro bubbles are already present and will not yet adhere to filter fibers, the process maintains high micro bubble density (1×10^6 bubbles/ml or more) while successfully removing contaminants. This preliminary filtration approach makes the process easier despite high micro bubble concentrations.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The patent inverts the conventional sequence by filtering before adding electrolyte rather than filtering after. This inversion prevents the typical problem where electrolyte causes micro bubbles to adhere to filters during filtration. By reversing the sequence, high micro bubble density is maintained while filtration proceeds smoothly, making manufacturing easier.

Inventive Principle:

Principle #13The other way round (Inversion)

3Stability of the object's composition

If cation concentration is increased in solvent, then electrolyte solution stability is improved, but micro bubble retention during filtration decreases

Engineering Contradiction:

Improveelectrolyte solution stabilityVSAvoidmicro bubble retention

Core Design Contradiction:

Stability of the object's compositionVSQuantity of substance

Solution Approach 1:

The patent performs filtration before adding electrolyte, so cations are not present during the filtration step. This preliminary filtration allows micro bubbles to pass through the filter without adhering to filter fibers, maintaining high micro bubble retention. After filtration is complete, electrolyte with appropriate cation concentration is added to achieve solution stability, thus resolving the contradiction between stability and retention.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The patent segments the process to separate filtration from electrolyte addition. This segmentation ensures that cations are introduced only after filtration is complete, preventing cation-induced micro bubble adhesion during filtration. The result is high micro bubble retention during filtration, followed by stable electrolyte solution composition after electrolyte addition.

Inventive Principle:

Principle #1Segmentation

Data Source

PatentUS12605343B2Method for producing microbubble-containing electrolyte solution and method for producing microbubble-containing solvent used for preparing microbubble-containing electrolyte solution

Publication Date: 2026.04.21 SUMITOMO SEIKA CHEM CO LTD

AI summary

The present disclosure provides a method for producing an electrolyte solution which can contain a high concentration of micro bubbles, and a method for producing a micro bubble-containing solvent which can be used for preparing the electrolyte solution, by suppressing decrease in micro bubbles during filtration.