Vegetable-Based Stearic Acid Production via Distillation
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Solution Overview
Problem
Current methods for producing stearic acid from plant-based sources are inefficient and often require hydrolysis, which may not utilize co-products from vegetable oil refining processes effectively, leading to waste and increased production costs.
Innovation Solution
A process involving drying and deodorizing a vegetable-based fat emulsion, followed by distillation and hydrogenation to separate and concentrate stearic acid, allowing for the production of stearic acid and palmitic acid without hydrolysis, utilizing co-products from vegetable oil refining as feedstock.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of substance
If hydrolysis is used to produce stearic acid from plant-based sources, then fatty acids can be obtained, but co-products from vegetable oil refining cannot be effectively utilized leading to waste
Solution Approach 1:
The patent recovers and utilizes co-products from vegetable oil refining processes that would otherwise be discarded. The distillation process separates and recovers stearic acid and palmitic acid from the fat emulsion co-product, converting waste material into valuable fatty acid products and eliminating substance loss.
2Ease of manufacture
If traditional hydrolysis method is used, then stearic acid can be produced, but production costs increase due to inefficiency
Solution Approach 1:
The patent changes the processing parameters by using distillation instead of hydrolysis, operating at specific temperature ranges (stearic acid boiling point 693°F, palmitic acid boiling point 623°F) to separate fatty acids. This parameter change enables more efficient production from co-products, reducing manufacturing costs while improving productivity.
3Manufacturing precision
If distillation is used to separate fatty acids, then pure stearic acid and palmitic acid can be obtained, but the process becomes more complex
Solution Approach 1:
The patent segments the separation process into distinct stages: first distilling stearic acid at its specific boiling point (693°F), then distilling palmitic acid at its boiling point (623°F). This segmentation allows each fatty acid to be separated and purified individually, achieving high manufacturing precision through a systematic multi-stage process.
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 process enhances the efficiency of stearic acid production by utilizing co-products, reducing waste, and achieving high purity stearic acid and palmitic acid separation, thereby lowering production costs and environmental impact.
Implementation Method 1
distilling the fatty acid and triglyceride mix to substantially separate the triglycerides from free fatty acids
Implementation Method 2
separating the free fatty acids using fractional distillation
Data Source
AI summary
One or more techniques are disclosed for a process of preparing a concentrated form of a vegetable-based stearic acid from a plant source. The process may comprise drying and deodorizing a vegetable based emulsion; and further concentrating the resulting fatty acid and triglyceride mix. The process may further comprise distillation of the resulting concentrated fatty acid and triglyceride mix, to separate the free fatty acids from the triglycerides. Additionally, the process may comprise fractional distillation of the free fatty acid distillate, to produce a concentrated from of the stearic acid, separating it from other fatty acids.