熔融结晶法提纯1-萘酚

Melt Crystallization Purification of 1-naphthol

从混合萘酚中分离提纯1-萘酚采用熔融结晶技术,通过对降温速率、结晶终温、升温速率及"发汗"终温等因素对粗晶体收率及纯度的影响的综合考虑,经多次反复实验,确定了结晶提纯1-萘酚较佳的工艺参数条件,经过单级结晶1-萘酚的含量由80%上升到了93%。

From mixed naphthol in separation and purification of 1 - naphthol by melt crystallization technology, through the cooling rate, the final crystallization temperature, heating rate and the ＂sweating＂ the final temperature and other factors on the yield and purity of the crude crystal, the better conditions of process parameters of crystallization purification of 1 - naphthol was determined after repeated experiments, and 1 - napht, hol content was increased from 80% to 93% through a single -stage crystallization.