Renewable Gel Coating for Granules to Reduce Dust and Caking
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing coatings for granular fertilizers based on petroleum-derived components pose environmental risks and are non-biodegradable, and renewable oils lack sufficient viscosity to effectively prevent agglomeration and dust formation without chemical modification.
Innovation Solution
A gel formulation using oils of renewable origin and a gel-forming agent that forms a thermoreversible gel at ambient temperatures, providing a low-dose, effective coating for granular materials.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If petroleum-based coatings (mineral oils and waxes) are used to prevent agglomeration and dust formation, then the coating performance is improved, but environmental toxicity and non-biodegradability worsen
Solution Approach 1:
The patent changes the chemical composition parameters of the coating from petroleum-based to renewable-based materials, specifically using oxidized vegetable oils and fatty acids. This substitution maintains the protective function while eliminating the environmental toxicity associated with mineral oils and waxes.
Solution Approach 2:
The patent employs biodegradable renewable materials that can naturally decompose after serving their protective function, replacing persistent petroleum-based coatings. This allows the coating to fulfill its protective role temporarily and then safely return to the environment without long-term accumulation or toxicity.
2Object-affected harmful factors
If renewable oils are used as coating material, then biodegradability and environmental safety are improved, but viscosity is insufficient to prevent agglomeration and dust formation
Solution Approach 1:
The patent creates a composite coating system combining oxidized vegetable oils with fatty acids. The oxidized vegetable oil provides the base matrix with improved viscosity through oxidation, while the fatty acid component (such as stearic acid) contributes additional viscosity and forms a protective film that prevents agglomeration and dust formation, achieving both environmental safety and functional performance.
Solution Approach 2:
The patent applies oxidation treatment to vegetable oils to increase their viscosity and improve coating properties. This chemical modification transforms the low-viscosity renewable oil into a higher-viscosity material capable of forming effective protective coatings, while maintaining the biodegradable and environmentally safe characteristics of the original vegetable oil.
3Reliability
If vegetable oil is oxidized to improve coating effectiveness, then dust reduction performance is improved, but chemical modification complexity and processing requirements worsen
Solution Approach 1:
The patent utilizes oxidation as a chemical modification method to improve the coating properties of vegetable oils. By controlling the oxidation process parameters (such as oxidation level and conditions), the patent achieves improved dust reduction performance while managing the complexity of the modification process through systematic approach to oxidation treatment.
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 gel formulation effectively reduces dust generation and agglomeration, maintaining compatibility with existing coating processes while being biodegradable and safe for the environment.
Implementation Method 1
a gel-forming agent which forms a gel at temperatures of less than 50° C. with the oil of renewable origin
Data Source
AI summary
The present invention relates to the use of a gel formulation, wherein said gel formulation comprises at least: an oil of renewable origin, and a gel-forming agent which forms a gel at temperatures below 50° C. with the oil of renewable origin. The present invention also relates to a granular material coated with said gel formulation.