引用本文:
张天永, 李淑宁, 李彬, 邓永峰, 袁仲飞. 高纯度2,6-二羟基萘的制备工艺[J]. 应用化学,
2015, 32(2): 166-170.
doi:
10.11944/j.issn.1000-0518.2015.02.140125
Citation: ZHANG Tianyong, LI Shuning, LI Bin, DENG Yongfeng, YUAN Zhongfei. Synthesis of High-Purity 2,6-Dihydroxynaphthalene[J]. Chinese Journal of Applied Chemistry, 2015, 32(2): 166-170. doi: 10.11944/j.issn.1000-0518.2015.02.140125
Citation: ZHANG Tianyong, LI Shuning, LI Bin, DENG Yongfeng, YUAN Zhongfei. Synthesis of High-Purity 2,6-Dihydroxynaphthalene[J]. Chinese Journal of Applied Chemistry, 2015, 32(2): 166-170. doi: 10.11944/j.issn.1000-0518.2015.02.140125
高纯度2,6-二羟基萘的制备工艺
English
Synthesis of High-Purity 2,6-Dihydroxynaphthalene
Abstract:
High purity 2,6-dihydroxynaphthalene was synthesized by one-pot alkali fusion using cheap disodium 2,6-naphthalenedisulfonate as the starting material. Under nitrogen atmosphere,in order to avoid overoxidation and obtain high yield of 2,6-dihydroxynaphthalene,phenol or antioxidant 1010 was added. Under the optimal technological conditions,the mass ratio of disodium 2,6-naphthalenedisulfonate and alkali 1:3,the mass ratio of sodium hydroxide and potassium hydroxide 2:1 in mixed alkali,the reaction temperature 345℃,the yield of 2,6-dihydroxynaphthalene in the alkali fusion is 86.3%. It is confirmed that the purity of 2,6-dihydroxynaphthalene is up to 99% after being refined by a methanol-water mixed solvent.
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Key words:
- disodium naphthalenedisulfonate
- / dihydroxynaphthalene
- / antioxidant
- / mixed alkali
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