Amine-Polyunsaturated Hydrocarbon Stabilizer for Organic Solvents
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Solution Overview
Problem
Existing stabilizer compositions for organic solvents, such as halogenated hydrocarbons, glycol ethers, and ketones, often fail to maintain stability over time, leading to an increase in acidity and corrosion issues, especially when used in low-polarity solvents or in the vapor phase, and are not suitable for hydrocarbons.
Innovation Solution
A stabilizer composition comprising a primary, secondary, or tertiary amine combined with an aliphatic, non-cyclic monomeric polyunsaturated hydrocarbon, which provides effective stabilization in both liquid and vapor phases, preventing acidity buildup and corrosion, and can be used in a wide range of organic solvents including hydrocarbons, glycol ethers, and esters.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional stabilizer compositions are used in organic solvents, then stabilization is provided initially, but the stabilizer capacity is reduced over time leading to increased acidity and corrosion
Solution Approach 1:
The patent uses a composite stabilizer system comprising multiple components: an amine compound (primary, secondary, or tertiary) combined with a polyunsaturated hydrocarbon. This composite approach provides synergistic stabilization that maintains capacity over extended periods, preventing the rapid degradation seen in single-component stabilizers.
Solution Approach 2:
The patent specifies precise parameter ranges for the stabilizer components, including amine boiling points (5-80°C), polyunsaturated hydrocarbon structures, and specific ratios (amino compound to hydrocarbon). These parameter optimizations ensure the stabilizer remains effective across different operating conditions and time periods.
2Reliability
If stabilizers with high boiling points are used, then liquid phase stabilization is achieved, but vapor phase stabilization is lost
Solution Approach 1:
The patent carefully selects the boiling point range of the amine component (5-80°C) to ensure volatility in the vapor phase while maintaining effectiveness in the liquid phase. This parameter optimization allows the stabilizer to function across both phases, eliminating the limitation of high-boiling-point stabilizers.
Solution Approach 2:
The stabilizer composition is designed to provide universal stabilization across multiple phases (liquid and vapor) and various solvent types (halogenated hydrocarbons, glycol ethers, esters, ketones, and hydrocarbons), making it applicable to diverse cleaning operations without phase or solvent limitations.
3Reliability
If stabilizers are added to halogenated hydrocarbons, then decomposition is prevented, but the stabilizer is not suitable for low-polarity solvents like hydrocarbons
Solution Approach 1:
The stabilizer composition is specifically designed with amine compounds and polyunsaturated hydrocarbons that are compatible with both polar and non-polar solvents. The amine component provides stabilization for halogenated hydrocarbons while the polyunsaturated hydrocarbon ensures compatibility with low-polarity solvents like hydrocarbons, glycol ethers, esters, and ketones.
Solution Approach 2:
The patent optimizes the chemical parameters of the stabilizer components, including the selection of specific amine structures and polyunsaturated hydrocarbon configurations, to achieve universal solubility and effectiveness across different solvent polarities, eliminating solvent-specific limitations.
4Device complexity
If no stabilizer is added to hydrocarbons, then the solvent maintains its simplicity, but acidic compounds accumulate over time causing corrosion
Solution Approach 1:
The stabilizer composition uses relatively small amounts of amine and polyunsaturated hydrocarbon compounds that can be easily added to the hydrocarbon solvent. These stabilizers are consumed or transformed over time, but their low cost and ease of addition make them practical for continuous use in preventing acid accumulation without significantly increasing system complexity.
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 stabilizer composition effectively controls acid content and prevents corrosion in cleaning operations, maintaining stability over an extended period and allowing for easy regeneration, even in the presence of water, by using amines with specific solubility and boiling point characteristics in conjunction with polyunsaturated hydrocarbons.
Implementation Method 1
The stabilizer composition effectively controls acid content and prevents corrosion in cleaning operations
Implementation Method 2
it is well known that halogenated hydrocarbons, glycol ethers, esters or ketones tend to decompose when they are exposed to heat, oxygen, light or water
Implementation Method 3
using amines with specific solubility and boiling point characteristics in conjunction with polyunsaturated hydrocarbons
Data Source
Figure 1
AI summary
A stabilizer composition comprising a) an amine and b) a compound selected from aliphatic, non-cyclic monomeric polyunsaturated hydrocarbons and terpenes is useful for stabilizing an organic solvent against degradation.