The process of alkyl naphthalene preparation by alkylation, acylation and direct extraction are also discussed.

讨论了烷基化 、 酰基化和直接提取制备烷基萘的工艺路线.

The effects of alkyl-naphthalene which is one of the pour point depressants (PPD) on the amount of wax precipitated from the simulation oil are studied in this work.

研究了降凝剂（PPD）对模拟油中蜡析出的影响，用高速离心机对特定温度下析出的蜡进行了分离，得到了加剂前后不同温度下的析蜡量；