摘要
以副产 C1 0 重芳烃为原料 ,通过精馏分离制备纯度≥ 90 %的甲基萘 (含 β 甲基萘和 α 甲基萘 ) ,经冷冻、分离制得纯度为 97%的 β 甲基萘。用乙醇重结晶或用溶剂洗涤法可制得高纯度 ( 99% )的 β 甲基萘。β 甲基萘可用于合成维生素 K、口服避孕药、2 ,6萘二羧酸等。
The methylnaphthalene(included βmethynaphthalene and αmethylnaphthalene) were prepared by distilled C 10 heavy aromatic hydrocarbon, the purity of βmet hylnaphthalene and αmethylnaphthalene is ≥90%. And then the βmethylnaphthalene was purified further by freezing separation, its purity can be reached 97%. The purity of βmethylnaphthalene can be reached ≥99% after make use of recrystallization with ethylacohol or wash with solvents. The βmethylnaphthalene can be used to prepare vitamin K, oralcontraceptive and 2,6naphthalene dicarboxylic acid, etc.
出处
《精细石油化工》
CAS
CSCD
1996年第3期8-10,共3页
Speciality Petrochemicals
关键词
C10重芳烃
Α-甲基萘
Β-甲基萘
C 10 heavy aromatic hydrocarbon
βmethyl naphthalene
αmethylnaphthalene
