2,6-二甲基萘制备方法的研究进展

Research progress on the preparation of 2,6-dimethylnaphthalene

介绍了国内外以对二甲苯、邻二甲苯和甲苯等苯系物为原料制备2,6-二甲基萘(2,6-DMN)的研发进展。综述了以萘或甲基萘等萘系物为原料甲基化制备法的研究进展,包括甲基化催化剂的开发和二甲基萘的异构化方法。并介绍了低品质催化柴油(LCO)直接分离提取2,6-DMN的生产工艺,为LCO生产2,6-DMN提供参考。

The research and development progress on preparation of 2,6-dimethylnaphthalene(2,6-DMN)using benzene series such as p-xylene,o-xylene and toluene as raw materials are introduced.The research progress of methylation preparation method using naphthalene series such as naphthalene or methylnaphthalene as raw materials are mainly reviewed,including the development of methylation catalyst and isomerization method of dimethylnaphthalene.The production processes for direct separation and extraction of 2,6-DMN from low quality light cycle oil(LCO)are also presented,which can provide a reference for production of 2,6-DMN from LCO.