Cobalt Rosinate Production Using Rubber Softening Agents
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Solution Overview
Problem
Current methods for producing cobalt soap, such as the metathesis and direct methods, face challenges including high production costs, quality issues, and the need for organic solvents, which affect the softening point and viscosity of the reactants, leading to inefficient and costly production, especially for cobalt rosinate.
Innovation Solution
A method using a softening agent for rubber blending as a reaction solvent to produce cobalt soap without organic solvents, reducing viscosity and production costs, while achieving high yield and purity, utilizing cobalt hydroxide and fatty acids with a softening agent like pine tar to facilitate the reaction at lower temperatures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the metathesis method is used to produce cobalt soap, then high yield is achieved, but production cost increases due to necessary water washing and drying
Solution Approach 1:
The invention extracts and eliminates the water washing and drying steps from the metathesis method by using an organic solvent system instead of water-based reaction, thereby removing the source of high production costs while maintaining high yield
Solution Approach 2:
The invention changes the reaction medium from water-based to organic solvent-based, which fundamentally alters the reaction parameters and eliminates the need for water removal steps, reducing production cost while preserving high productivity
2Ease of manufacture
If the direct method is used to produce cobalt soap, then production cost is reduced, but reaction completeness deteriorates due to carbonization at high temperature
Solution Approach 1:
The invention changes the reaction temperature parameter by using an organic solvent system that allows complete reaction at lower temperatures, preventing carbonization while maintaining cost-effectiveness of the direct method
Solution Approach 2:
The organic solvent acts as an intermediary medium that facilitates complete reaction between cobalt hydroxide and fatty acid at lower temperatures, preventing direct thermal contact that would cause carbonization
3Strength
If fatty acid with high softening point is used, then adhesion performance improves, but reaction efficiency deteriorates due to high viscosity
Solution Approach 1:
The invention changes the physical state parameter of the fatty acid by using organic solvent to dissolve or disperse it, reducing viscosity and enabling efficient reaction while maintaining the use of high softening point fatty acids for adhesion performance
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 method enables the production of high-yield, high-purity cobalt soap at a lower cost, improving the adhesiveness of steel cord and rubber in rubber belts, such as tire and conveyor belts, with reduced environmental impact and operational costs.
Implementation Method 1
cobalt soap can be obtained by the method for reaction of neutralizing cobalt hydroxide with a fatty acid
Implementation Method 2
a fatty acid as the raw material having a lower softening point has a lower viscosity, so the production becomes easier
Implementation Method 3
it is necessary to remove water by heating and reduced pressure
Data Source
Figure 1
AI summary
For the metathesis method and the direct method used for the production of cobalt soap, problems exist in the quality of products, the purity of the product, etc. Particularly, the problem exists that the production of cobalt rosinate, which is important among cobalt soaps, results in high cost compared to other cobalt soaps. Cobalt soap can be obtained in high yield and high purity by the production with adopting the direct method which is the method for reaction in low cost, and without using an organic solvent, by using a softening agent for rubber blending which is one of rubber blending agents for the production of cobalt soap using a fatty acid having a high softening point.