Mannich base, production and use thereof
AssigneesChina Petroleum & Chemical Corporation, Research Institute of Petroleum Processing, Sinopec
InventorsShihao Xin, Qinghua Duan, Zuoxin Huang
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Abstract
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.
Claims13
A Mannich base, comprising the structure unit (I) and the structure unit (II):
- wherein, multiple R1 may be the same as or different from one another, each independently selected from the group consisting of hydrogen, a C1-4 linear or branched alkyl and a single bond;
- multiple R′ may be the same as or different from one another, each independently selected from the group consisting of hydrogen and a C1-6 linear or branched alkyl;
- R2 represents a C1-12 linear or branched alkyl;
- R3 represents a C1-6 linear or branched alkyl;
- R4 represents a hydrocarbyl having a number-averaged molecular weight Mn of 300-3000;
- multiple y may be the same as or different from one another, each independently selected from an integer of from 2 to 5.
A process for producing a Mannich base comprising the step of 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,
- wherein, R2 represents a C1-12 linear or branched alkyl;
- R3 represents a C1-6 linear or branched alkyl;
- R4 represents a hydrocarbyl having a number-averaged molecular weight Mn of 300-3000;
- multiple Rb′ may be the same as or different from one another, each independently selected from the group consisting of hydrogen and a C1-4 linear or branched alkyl, with the proviso that at least two of Rb′ are hydrogen;
- y represents an integer of from 2 to 5;
- c′ represents an integer of from 1 to 11.
Dependencies are inferred from the claim text.