Fluorescent Water Treatment Polymer with Phosphino Groups
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Solution Overview
Problem
Industrial water systems face challenges in controlling scale formation and corrosion, particularly in higher pH environments with limited phosphate use, where existing water soluble treatment polymers exhibit poor fluorescent signal strength when tagged with sulfonated pyrene monomers.
Innovation Solution
A fluorescent water treatment polymer comprising a sulfonated pyrene-containing monomer, a water soluble carboxylic acid monomer, and phosphino groups, which enhances the fluorescent signal strength, allowing for effective scale control and monitoring in industrial water systems with reduced polymer dosage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If water soluble treatment polymers are tagged with sulfonated pyrene monomer for fluorescent monitoring, then the ability to monitor polymer concentration and consumption is improved, but the fluorescent signal strength becomes too weak to be effectively measured
Solution Approach 1:
The patent changes the chemical structure parameters of the polymer by incorporating phosphino groups (P-H or P-Me) at specific positions in the polymer chain. This structural modification enhances the fluorescent signal strength of the tagged sulfonated pyrene monomer, making it detectable at lower polymer dosages while maintaining effective scale inhibition performance.
2Object-generated harmful factors
If higher pH water systems are used to reduce phosphate consumption, then phosphate release to environment is reduced, but carbonate scaling increases
Solution Approach 1:
The patent introduces phosphino groups at specific local positions within the polymer structure to create sites with enhanced scale inhibition capability. These localized modified regions provide strong carbonate scale control through improved interaction mechanisms, allowing the polymer to function effectively in high pH, low-phosphate environments without requiring increased dosage.
3Quantity of substance
If conventional water soluble treatment polymers are used in higher pH environments, then phosphate use can be reduced, but the polymers exhibit poor fluorescent signal strength and reduced scale control efficacy
Solution Approach 1:
The patent creates a composite polymer structure combining conventional water-soluble treatment polymer backbone with phosphino group modifications. This composite structure integrates the scale inhibition capabilities needed for high pH environments with enhanced fluorescent signal strength, achieving both reliable scale control and effective monitoring while using reduced phosphate levels.
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 polymer achieves significant carbonate inhibition (up to 90%) at lower concentrations, enabling efficient scale control and monitoring in industrial water systems, even in stressed conditions with high Langelier Saturation Index values.
Implementation Method 1
a fluorescent water treatment polymer containing a sulfonated pyrene monomer and that has a detectable fluorescent signal
Data Source
AI summary
A fluorescent water treatment polymer comprises at least one water soluble carboxylic acid monomer other than maleic acid, at least one sulfonated pyrene-containing fluorescent monomer, and at least one phosphino group wherein the phosphorous atom of the phosphino group is in the polymer backbone. Additional monomers can be present, with the proviso that if maleic acid is present it comprises no greater than 75 mol % of the polymer. Surprisingly, it has been found that when the phosphino group is present the polymers exhibit an unexpectedly strong fluorescent signal strength. The signal strength of the fluorescent monomer in the polymer is further enhanced when the polymer comprises no greater than 75 mol % maleic acid.