Abstract: Potassium ferrate is prepared by an improved hypochlorite oxidation method and then characterized. A new，effective and green approach for ultralow-sulfur pentane production is proposed using potassium ferrate as oxidant. Effects of oxidation conditions on the desulphurization and the oxidation mechanism are discussed. With 0.1786 g of K₂FeO₄，0.5 mL of ZSW-1 catalyst，20 mL of pentane under 30℃ for 60 min，the reaction mixture was extracted with 5%NaOH aqueous solution，the sulphur content was reduced from 50 mg/L to 0.632 mg/L，and the desulfurization ratio reached to 98.7％.

摘要： 采用改进的次氯酸盐氧化法合成了高铁酸钾氧化剂，并对其进行了表征。提出了以高铁酸钾为氧化剂的高效、清洁氧化生产超低硫戊烷新方法，考察了氧化反应条件对脱硫效果的影响，并给出了氧化脱硫反应机理。在戊烷20 mL、K₂FeO₄ 0.1786 g、催化剂ZSW-1 0.5 mL条件下，30 ℃下氧化60 min后，反应产物采用5％的NaOH萃取，戊烷中硫含量由50 mg/L降到0.632 mg/L，脱硫率为98.7％。