Super-activation of emulsion polymers via heated diluent blending
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Solution Overview
Problem
Existing methods for activating emulsion polymers in applications like wastewater treatment and papermaking require significant energy and involve complex, multi-step processes that can lead to reduced polymer performance and increased costs, with existing heated diluent methods requiring additional infrastructure and not fully eliminating the need for holding tanks.
Innovation Solution
A super-activation process involving heating a diluent to an elevated temperature, combining it with a polymer, and employing a blending device with controlled energy input to reduce the polymer's molecular structure, allowing for a simplified one to three-step activation process that enhances polymer activity beyond conventional levels.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional 4-step activation process with unheated diluent is used, then polymer activation is achieved, but additional aging or holding time is required and infrastructure complexity increases
Solution Approach 1:
The patent changes the temperature parameter of the diluent from ambient (unheated) to elevated temperature (heated), which fundamentally alters the activation mechanism. This parameter change eliminates the need for multiple processing steps and holding time, reducing infrastructure complexity while maintaining reliable polymer activation.
Solution Approach 2:
The patent extracts and eliminates unnecessary processing steps (premixing, recycling, holding) from the conventional 4-step process. By using heated diluent, the activation process is condensed into a single essential step, removing redundant infrastructure requirements while preserving the core activation function.
2Device complexity
If heated diluent is used to offset aging time, then holding tanks and additional pumping means can be eliminated, but the process still requires 4-step activation
Solution Approach 1:
The patent merges the heating function with the diluent, creating a dual-purpose medium that both dilutes the polymer and provides thermal energy for activation. This combination eliminates the need for separate heating equipment and multiple processing steps, improving productivity while maintaining infrastructure reduction.
Solution Approach 2:
The heated diluent enables continuous activation action throughout the mixing process, eliminating the need for separate aging or holding periods. The useful action of polymer activation continues efficiently during the single mixing step, improving overall process productivity.
3Reliability
If higher molecular weight polymers are used, then polymer performance is improved, but mixing energy requirement increases significantly
Solution Approach 1:
The patent changes the temperature parameter of the diluent to elevated levels, which reduces the viscosity and resistance of high molecular weight polymers during mixing. This parameter change allows effective mixing of high-performance polymers with reduced energy input, resolving the contradiction between polymer performance and mixing energy requirements.
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 super-activation process significantly improves polymer activity, reducing energy consumption, chemical waste, and infrastructure needs, while maintaining or improving performance in applications like wastewater treatment and papermaking, with potential for reduced landfill and transportation costs.
Implementation Method 1
heating a diluent to an elevated temperature
Implementation Method 2
employing a blending device with controlled energy input to reduce the polymer's molecular structure
Data Source
AI summary
A method for the super-activation of emulsion polymers is provided. The method includes carrying out a one to three-step polymer activation process to form an activated polymer-diluent mixture, the steps selected from (a)-(d): (a) premixing the first polymer-diluent mixture at a predetermined pressure to form a second polymer-diluent mixture; (b) blending the first polymer-diluent mixture or the second polymer-diluent mixture with a blending device to form a blended polymer-diluent mixture; (c) (i) recycling the blended polymer-diluent mixture to be blended as in step (b) or premixed as in step (a) at a predetermined pressure; or (ii) recycling the second polymer-diluent mixture to be premixed as in step (a) at a predetermined pressure; and (d) reducing the pressure in a portion of the blended polymer-diluent mixture or the second polymer-diluent mixture to relax the polymer and form a relaxed polymer-diluent mixture.