首页|Pilot Test of Preparing 2-Alkylanthraquinone Using Alkylation-Oxidation Technology
Pilot Test of Preparing 2-Alkylanthraquinone Using Alkylation-Oxidation Technology
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维普
To expedite the development of industrial technology for producing 2-alkylanthraquinone,a novel pilot test of alkylation-oxidation technology was conducted.The process mainly included anthracene alkylation,separation of anthracene and 2-alkylanthracene,oxidation of 2-alkylanthracene,and product purification.Optimal alkylation conditions yielded a 91.1％conversion of anthracene and a 71.73％selectivity for 2-alkylanthracene.To address the separation problem of anthracene and 2-alkylanthracene,solvent-assisted distillation technology was developed,resulting in a 98.9％purity of 2-alkylanthracene and a 91.82％separation yield.When the molar ratio of H2O2 to 2-alkylanthracene was 7:1,a 98.96％conversion of 2-alkylanthracene and a 99.94％selectivity for 2-alkylanthraquinone were achieved.A novel composition of 2-alkylanthraquinone,including 2-tert-butylanthraquinone,2-tert-amylanthraquinone,and 2-hexylanthraquinone,was developed.This composition could be effectively separated and purified through a combination of crystallization and washing processes.The elemental composition of the product met the existing standards,and its hydrogenation performance closely matched that of commercially available 2-tert-amylanthraquinone products.
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维普
