Chen Le-wen
2007
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Journal
Zhejiang Chemical Industry
Abstract
The recent progress in the synthesis and separation of 1,8-dinitroanthraquinone and 1,5-dinitroanthraquinone was summarized in this review.A process technology of high purity 1,8-dinitroanthraquinone was introduced.Using transferring the crystalline form of 1,8-dinitroanthraquinone and utilizing the different relative density of the two compounds,1,8-dinitroanthraquinone was separated through hydrocyclone in water at room temperature.The mass percent of 1,8-dinitroanthraquinone using this technology could reach 99.5% and the separating yield could reach 60%.