Acetaldehyde Stabilized Acrylamide Solution
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Solution Overview
Problem
Existing stabilizers for acrylamide solutions either reduce the quality of acrylamide due to high usage amounts for smaller polymerization inhibiting effects or adversely affect polymerization operations with higher inhibiting effects, making it difficult to achieve stable high molecular weight polymers and efficient production.
Innovation Solution
Incorporating acetaldehyde at a weight ratio of 1.5 mg/Kg to 4 mg/Kg in an aqueous acrylamide solution to suppress polymerization without reducing the quality of acrylamide, thereby improving stability and preventing corrosive effects on iron surfaces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If stabilizers with high polymerization inhibiting effect are used, then polymerization suppression is improved, but polymerization operations are adversely affected (difficulty to obtain high molecular weight polymers and reduced polymerization speed)
Solution Approach 1:
The patent changes the chemical parameter by using acetaldehyde (a different type of stabilizer) instead of conventional polymerization inhibitors. Acetaldehyde suppresses polymerization through a different mechanism that does not interfere with the polymerization catalyst or reaction kinetics, thus maintaining high polymerization speed and molecular weight while still preventing unwanted polymerization during storage and handling.
2Manufacturing precision
If stabilizers with smaller polymerization inhibiting effect are used, then quality is improved, but polymerization suppression is reduced
Solution Approach 1:
The patent changes the stabilizer type to acetaldehyde, which provides strong polymerization suppression without the quality degradation issues associated with conventional stabilizers. Acetaldehyde does not cause discoloration or purity reduction even at effective concentrations, thus simultaneously achieving both quality maintenance and reliable polymerization suppression.
3Reliability
If conventional stabilizers are used, then polymerization suppression is achieved, but corrosive effects on iron surfaces occur
Solution Approach 1:
The patent introduces acetaldehyde as an intermediary stabilizer that suppresses polymerization without the corrosive side effects of conventional stabilizers. Acetaldehyde acts through a different chemical mechanism that does not involve corrosive interactions with iron surfaces, thus eliminating the harmful corrosive effects while maintaining effective polymerization suppression.
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 use of acetaldehyde effectively stabilizes acrylamide solutions, preventing polymerization and reducing corrosive effects on iron, while maintaining the quality and facilitating the production of high molecular weight polymers.
Implementation Method 1
acrylamide is very easy to polymerize... stabilizers have been proposed to stabilize acrylamide... when acrylamide is allowed to contain acetaldehyde, polymerization of acrylamide during its production and/or preservation can be suppressed
Implementation Method 2
the corrosive effect on the surface of iron is also suppressed to thereby achieve a more improved stabilizing effect
Data Source
AI summary
The present invention provides a process for stabilizing an aqueous acrylamide solution. The present invention also provides a stable aqueous acrylamide solution containing acetaldehyde at a weight ratio relative to acrylamide of 1.5 mg/Kg to 4 mg/Kg.