Continuity Composition Using Molten Fatty Amine for Polymerization
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Solution Overview
Problem
Existing continuity compositions for addressing reactor fouling in polyolefin polymerization processes, particularly with metallocene catalysts, face challenges such as difficulty in preparation, inconsistent behavior, and increased viscosity during drying, leading to handling issues and reduced reactor operability.
Innovation Solution
A continuity composition comprising a metal carboxylate salt modified with a molten fatty amine, optionally including a liquid vehicle like mineral oil, which enhances drying efficiency and flowability, allowing for lower moisture content and improved handling characteristics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If solid components are mixed to prepare continuity composition, then the composition can be formed, but agglomerates form which adversely affect flowability and make drying difficult
Solution Approach 1:
The patent changes the physical state parameter of the fatty amine from solid to liquid (molten) form. By using molten fatty amine instead of solid components, the mixture achieves better flowability and prevents agglomerate formation during mixing, directly resolving the contradiction between ease of manufacture and ease of operation.
Solution Approach 2:
The patent creates a composite continuity composition by combining metal carboxylate salt with molten fatty amine. This composite approach allows the liquid fatty amine to modify the solid salt particles, improving overall flowability and handling characteristics while maintaining the functional properties of the metal carboxylate salt.
2Loss of time
If higher temperature drying is used to remove moisture, then drying efficiency improves, but viscosity significantly increases possibly through gelling mechanisms
Solution Approach 1:
The patent changes the physical state of the fatty amine to liquid/molten form, which fundamentally alters the drying behavior. This parameter change allows the slurry to be dried to low moisture levels without the viscosity increase and gelling that occur with solid component mixtures, thus resolving the contradiction between drying efficiency and handling ease.
3Reliability
If metal carboxylate salts and fatty amines are used to address reactor fouling, then reactor operability improves, but handling difficulties and inconsistent behavior occur
Solution Approach 1:
By changing the fatty amine to liquid/molten state, the patent eliminates the handling difficulties and inconsistent behavior associated with solid component mixtures. The liquid state ensures uniform mixing and consistent performance while maintaining the reactor fouling prevention benefits, thus resolving the contradiction between reliability and ease of operation.
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 modified continuity composition facilitates easier drying to low moisture levels, improves flowability, and maintains catalyst activity and process continuity, enhancing reactor operability and productivity in olefin polymerization processes.
Implementation Method 1
at least one metal carboxylate salt which has been contacted with at least one molten fatty amine
Data Source
AI summary
The present invention relates to a process for producing a continuity composition, comprising the step of contacting at least one metal carboxylate salt with at least one molten fatty amine.