Method for reducing content of neutral oil in crude phenol

The invention discloses a method for reducing the content of neutral oil in crude phenol, which comprises the following steps: uniformly mixing the crude phenol and inorganic acid to obtain a mixture containing water-soluble organic salt, and washing the mixture to obtain an oil phase without the organic salt and residual inorganic acid. According to the method, the unqualified crude phenol is directly used as a raw material, and neutral oil in the crude phenol is effectively removed through acid pickling and water washing, so that the content of the neutral oil in the unqualified crude phenol is remarkably reduced, and the quality of the crude phenol is improved. 本发明公开了一种降低粗酚中中性油含量的方法，包括如下步骤：将粗酚和无机酸混合均匀，得到包含溶于水的有机盐的混合物，水洗所述混合物，得到除去有机盐和残余无机酸的油相。本发明直接以不合格的粗酚为原料，通过酸洗和水洗的方法，有效脱除了粗酚中的中性油，从而显著降低了不合格粗酚中的中性油含量，提高了粗酚品质。