Treatment method of laterite nickel ore leaching solution

A treatment method of a laterite nickel ore leaching solution includes the following steps that neutralizing treatment is carried out on laterite nickel ore pickle liquor at normal temperature, the pHvalue is adjusted to 1.5-2.5, and solid-liquid separation is conducted after neutralizing treatment is completed to obtain iron slag and filter liquor; and oxidizing agents are added into the filterliquor, after all ferrous sulfates are oxidized into ferric iron, neutralizing treatment is carried out on the oxidized filter liquor at normal temperature, the pH value is adjusted to 2.5-4, and solid-liquid separation is conducted after neutralizing treatment is completed to obtain iron slag and filter liquor. According to the treatment method, the deironing effect is improved, and the loss of nickel in the deironing process is reduced. 种红土镍矿酸浸液的处理方法，包括以下步骤：在常温下对所述红土镍矿酸浸液进行中和处理，将pH值调整至1.5～2.5，待中和处理完成后进行固液分离得到铁渣和滤液；向滤液中加入氧化剂，在二价铁全部氧化为三价铁后，在常温下对被氧化的滤液进行中和处理，将pH值调整至2.5～4，待中和处理完成后进行固液分离得到铁渣和滤液。本发明提高了除铁效果，降低了除铁过程中镍的损失。