【摘要】 采用先处理酸碱深性杂质，改进了亚硫酸氢钠提取方法，产率由７０．４提高到７８．９％，将菲醌与亚硫酸氢钠物质的量比由１∶７．０缩小到１∶１．８。为降低成本提供了实验依据。更多还原

【Abstract】 By pretreating acid and basic dissoluble impurities, the method of extracting phenanthyrenanequinone with sodium bisulfite was improved. As a result, the productivity is not only up from 68.4% to 79.9%, but the mole concentration proportion to phenathyrenanequinone and sodium bisulfite is also down to 1∶1 8更多还原