Spray Granulation for PUFA Amino Acid Salt Tableting
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Solution Overview
Problem
Current processes for producing polyunsaturated fatty acid (PUFA) amino acid salts are not suitable for large-scale tableting due to the need for additional downstream processes like granulation and drying, which are costly and industrially impractical.
Innovation Solution
The use of spray granulation as a downstreaming process to produce PUFA amino acid salt powders with optimal properties for tableting, achieving specific particle size distributions and properties that enhance flow and stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If spray drying is used to produce PUFA amino acid salt powder, then the powder can be obtained, but additional downstream processes like granulation and drying are required which are costly and industrially impractical
Solution Approach 1:
The patent combines spray drying and granulation into a single integrated spray granulation process. The liquid feed containing PUFA amino acid salts is sprayed directly into a fluidized bed where simultaneous drying and granulation occur, eliminating the need for separate downstream granulation and drying operations. This merger resolves the contradiction by maintaining manufacturing simplicity while achieving industrial scalability.
Solution Approach 2:
The spray granulation process performs multiple functions simultaneously: it acts as both a drying process and a granulation process. The fluidized bed system provides drying, granulation, and sizing in one operation, making the process universally applicable for producing tabletable powder without requiring multiple specialized equipment and process steps.
2Manufacturing precision
If additional downstream processes like granulation and drying are used, then powder properties for tableting can be improved, but the process becomes costly and complex
Solution Approach 1:
The patent merges multiple process steps (drying, granulation, sizing) into a single spray granulation operation. By spraying the liquid feed into a fluidized bed, all these functions are accomplished simultaneously, reducing device complexity while maintaining or improving powder properties suitable for tableting.
Solution Approach 2:
The process controls powder properties by adjusting spray granulation parameters such as spray rate, atomization pressure, fluidization air flow, and bed temperature. These parameter changes enable precise control over particle size distribution, moisture content, and flow properties, achieving tableting-quality powder without complex downstream processing.
3Reliability
If spray granulation is used to produce optimal powder properties, then flow and stability are enhanced, but the process requires careful control of multiple parameters
Solution Approach 1:
The patent establishes specific parameter ranges for spray granulation operation: spray rate of 5-50 mL/min, atomization pressure of 1-10 bar, fluidization air flow of 10-100 L/min, and bed temperature of 20-80°C. Within these ranges, the process reliably produces powder with optimal flow and stability properties, making operation straightforward despite the multiple parameters involved.
Solution Approach 2:
The process incorporates monitoring and adjustment of key parameters during operation. By observing powder properties such as particle size distribution, moisture content, and flow characteristics, operators can adjust spray rate, atomization pressure, and fluidization conditions to maintain optimal powder quality and stability, ensuring reliable 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
This approach results in powders that are suitable for commercial-scale tableting, with improved flow properties and stability, allowing for efficient production of solid dosage forms.
Implementation Method 1
subjecting resulting admixture to spray granulation in a fluidized bed
Implementation Method 2
subjecting resulting admixture to spray granulation in a fluidized bed subsequently, thus forming a solid product composition
Data Source
AI summary
The invention provides an improved down streaming process for production of polyunsaturated fatty acid salts suitable for tableting by direct compression.