Vegetable Ester Solvent Composition for Non-Toxic Industrial Cleaning
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Solution Overview
Problem
Traditional industrial cleaning solvents derived from petrochemicals are toxic and dependent on fossil resources, necessitating a transition to non-toxic, agro-solvents with effective oil-dissolving capabilities.
Innovation Solution
A solvent composition comprising between 10-90% C4-C8 carboxylic ester, 5-85% C7-C10 acetal, and 5-85% of two different C7-C10 glycol ethers, with specific additives like butylal and dipropylene glycol dimethyl ether, which improve solubility and reduce toxicity, allowing for use in vacuum machines without flammability risks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional petrochemical solvents are used, then cleaning effectiveness is improved, but toxicity and environmental harm increase
Solution Approach 1:
The patent changes the chemical composition parameters by using C4-C8 carboxylic esters (vegetable origin) instead of traditional petrochemical solvents. This parameter change maintains cleaning effectiveness through proper molecular structure selection while fundamentally altering the toxicity profile by using naturally derived, biodegradable compounds.
Solution Approach 2:
The invention creates a composite solvent system combining multiple components: C4-C8 carboxylic esters as the base, C7-C10 acetals as co-solvents, and C7-C10 glycol ethers as additives. This composite approach synergistically combines the high cleaning power of vegetable esters with the solubilizing and performance-enhancing properties of the other components, achieving effective cleaning with non-toxic, biodegradable materials.
2Object-affected harmful factors
If agro-solvents are used to replace petrochemicals, then toxicity is reduced, but cleaning power decreases
Solution Approach 1:
The patent formulates a composite solvent system where C4-C8 carboxylic esters (50-90 wt%) provide the primary cleaning action with high surface activity, while C7-C10 acetals (5-30 wt%) and C7-C10 glycol ethers (5-20 wt%) act as co-solvents that enhance oil solubilization and overall cleaning performance. This synergistic combination restores cleaning power to agro-solvent-based formulations.
Solution Approach 2:
The invention optimizes the molecular structure and chain length of each component within specific ranges (C4-C8 for esters, C7-C10 for acetals and glycol ethers) to achieve optimal local chemical properties. This precise control of molecular characteristics ensures maximum cleaning effectiveness while maintaining the non-toxic, biodegradable nature of the vegetable-based esters.
3Object-affected harmful factors
If C4-C8 carboxylic ester is used as main solvent, then vegetable origin and non-toxicity are achieved, but solubilizing quality of oils is insufficient
Solution Approach 1:
The patent introduces C7-C10 acetals and C7-C10 glycol ethers as intermediary substances that mediate between the C4-C8 carboxylic esters and the oily pollutants. These intermediaries have molecular structures that can interact with both the vegetable ester base and the oil contaminants, enhancing solubilization through co-solvent effects and micelle formation, thereby improving overall oil-dissolving capability.
Solution Approach 2:
The invention optimizes the concentration parameters of each component, with C4-C8 carboxylic esters at 50-90 wt%, C7-C10 acetals at 5-30 wt%, and C7-C10 glycol ethers at 5-20 wt%. This precise parameter control ensures the carboxylic ester maintains its non-toxic, vegetable-based properties while the additive components are present in optimal amounts to maximize solubilizing quality without compromising safety.
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 solvent effectively dissolves industrial oils, reduces toxicity below labeling thresholds, and is compatible with vacuum machine operations, offering a sustainable and non-flammable cleaning solution.
Implementation Method 1
The solvent effectively dissolves industrial oils
Implementation Method 2
Their role is to very significantly improve the solubilizing qualities of the carboxylic ester
Data Source
Figure 1
AI summary
Organic solvent comprises an ester (10-90 wt.%), additives comprising an acetal (5-85 wt.%), an ether (5-85 wt.%), and a di-ether (0-60 wt.%).