摘要
论述了由萘、甲基萘经选择性烷基化法及二甲基萘异构化法生成 2 ,6 -二甲基萘的研究进展 ;介绍了从萘系物中分离 2 ,6 -二甲基萘的方法 ,对压力结晶法做了较详细的阐述 ;指出从重油接触裂解柴油馏分中制备 2 ,6 -二甲基萘是石油萘生产的最理想的技术方向。
The paper describes the research development of the preparation methods of 2,6 dimethylnaphthalene (2,6 DMN) by the selective alkylation of naphthalene and methylnaphthalene,and the isomerization of dimethylnaphthalene,introduces the separation technology of 2,6 DMN from alkynaphthalene mixtures,special details are given to the method of crystallization under pressure.The paper also points out,the ideal technology of petroleum naphthalene production is preparing 2,6 DMN from diesel fraction,a product of heavy oil contact cracking.
