Catalyst used for catalyzing synthesis of aliphatic tertiary amine from primary amine or secondary amine and fatty alcohol as well as preparation and application of catalyst

Abstract

The invention discloses a catalyst used for catalyzing synthesis of aliphatic tertiary amine from primary amine or secondary amine and fatty alcohol as well as a preparation and an application of the catalyst. The catalyst comprises catalytic activity components including nickel, copper, magnesium and iron and an active aluminum oxide carrier; the preparation method of the catalyst is implemented as follows: nitrates of Ni, Mg, Cu and Fe are taken as catalytic activity component raw materials, aluminum hydroxide gel is taken as a carrier raw material, NaOH and Na2CO3 are taken as precipitators, and a catalyst precursor is obtained with a coprecipitation method; the catalyst precursor is roasted and then reduced and activated by KBH4, and the catalyst is obtained; the catalyst has the characteristics of high selectivity and high conversion rate when catalyzing synthesis of aliphatic tertiary amine from primary amine or secondary amine and fatty alcohol, the reaction process is simple, the reaction time is short, requirements for equipment are low, raw materials are easy to obtain, the cost is low, and no solvent is required.

Description

technical field

[0001] The invention relates to a catalyst for catalyzing the synthesis of fatty tertiary amines from primary or secondary amines and fatty alcohols, in particular to a catalytically active component containing nickel, copper, magnesium and iron supported on an active aluminum oxide carrier The catalyst constituted above, as well as the preparation method of the catalyst and its application in catalyzing the synthesis of fatty tertiary amines from primary or secondary amines and fatty alcohols belong to the field of chemical synthesis. Background technique

[0002] With single long chain alkyl tertiary amine, double long chain alkyl tertiary amine and three long chain alkyl tertiary amine (respectively RNMe 2 , R 2 NMe and R 3 N) Alkyl tertiary amines with three structures are widely used as a class of important organic intermediates in cationic surfactants, amphoteric compounds, dye auxiliaries and fungicides, etc. Trialkyl tertiary amines are alkyl fats ...

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