Mannich Base Detergent for Engine Deposit and Corrosion Control
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Solution Overview
Problem
Existing detergents fail to effectively suppress engine deposit formation and provide adequate anticorrosion performance, leading to engine performance issues and reduced service life.
Innovation Solution
A novel Mannich base is developed through a process involving the reaction of a phenolic compound, a polyalkylenepolyamine, and a C1-C7 linear or branched saturated aliphatic aldehyde, which is used to produce a detergent with enhanced deposit formation suppression and anticorrosion properties.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If prior art detergents are used to suppress deposit formation, then some deposit suppression performance is achieved, but anticorrosion performance is insufficient
Solution Approach 1:
The detergent comprises a composite additive system containing Mannich base (deposit suppressant), carboxylic acid or sulfonic acid (anticorrosion agents), and phenolic compounds. This composite formulation simultaneously addresses both deposit formation and corrosion issues that single-component detergents cannot resolve
Solution Approach 2:
The patent specifies precise compositional parameters including Mannich base content (0.1-5% by weight), carboxylic acid content (0.01-1% by weight), and phenolic compound content (0.1-3% by weight). By optimizing these parameters, the detergent achieves balanced performance in both deposit suppression and corrosion protection
2Object-affected harmful factors
If existing detergent formulations are used, then basic deposit suppression is provided, but engine service life is reduced due to corrosion
Solution Approach 1:
The detergent applies preliminary protective action by forming protective films on metal surfaces through carboxylic acid and sulfonic acid components before corrosion can occur. This preventive mechanism protects engine parts throughout their service life, extending durability
Solution Approach 2:
The multi-component detergent system combines deposit suppressants with corrosion inhibitors, providing dual functionality that simultaneously protects against both deposit formation and corrosion, thereby extending engine service life
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 novel Mannich base-based detergent effectively suppresses engine deposit formation and provides excellent anticorrosion performance, improving engine performance and extending service life.
Implementation Method 1
reacting a phenolic compound of the formula (V), a phenolic compound of the formula (VI), a polyalkylenepolyamine of the formula (VII) and a C1-C7 linear or branched saturated aliphatic aldehyde to conduct a Mannich reaction
Data Source
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AI summary
This invention relates to a Mannich base, production and use thereof in producing a detergent. The Mannich base is represented by the following formula (III), wherein A and R2 are as defined in the specification. The Mannich base can be used to produce a detergent and a fuel oil composition exhibiting excellent deposit formation suppressing performance and excellent anticorrosion performance.