Abstract: <SPAN lang=EN-US>There are lots of impurities in wet-process phosphoric acid,such as organic impurities.In order to remove organic impurities from wet-process phosphoric acid,a technology which combines activated carbon adsorption with chemical oxidation was introduced.The effects of various factors,such as reagent dosages,reaction temperature,reaction time,and speed of stirring on the removal rates,were investigated.Results showed that the dosage of activated carbon and the dosage of hydrogen peroxide have notable effect on reducing the content of organic impurities in wet-process phosphoric acid.</SPAN><SPAN lang=EN-US>80.2%</SPAN><SPAN lang=EN-US>of organic impurities in wet-process phosphoric acid can be removed by this method under the optimal conditions.After purification,the remained organic material in phosphoric acid was even lower than the required content of organic impurities in food-grade phosphoric acid.So it is an effective method to decrease content of organic impurities in the </SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman""></SPAN><SPAN lang=EN-US>wet-process</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman""></SPAN><SPAN lang=EN-US> phosphoric acid.<BR></SPAN>