Composite fluorine removal agent and preparation method

一种复合除氟剂及制备方法

Abstract

本发明公开了一种复合除氟剂,所述复合除氟剂由具有多层次孔径结构的多孔炭及镶嵌在其中的活性除氟粒子组成。所述活性除氟粒子由含Al或含Mg成分的天然矿物经过破碎及高温活化在多孔炭的孔径中原位生成,活性除氟粒子与多孔炭结合牢固且分散均匀。其制备方法包括天然矿物破碎筛分、复合除氟剂前驱体的配制和活化、去除造孔剂等步骤。本发明工艺方法简单、操作方便,所制备的复合除氟剂,用于脱除锌湿法冶炼中硫酸锌浸出液中的氟,具有除氟量大、快速高效的特点,且容易通过无机铝盐、无机镁盐或碱液再生而多次重复使用,除氟的综合成本低。
The invention discloses a composite fluorine removal agent. The composite fluorine removal agent is formed by porous coal in a multi-layer hole diameter structure and active fluorine removal particles embedded in the porous coal. The active fluorine removal particles are produced by natural minerals containing Al or Mg through crushing and high-temperature activating in porous coal diameters. The active fluorine removal particles and the porous coal are firmly integrated and scattered uniformly. A preparation method comprises the steps of natural mineral crushing screening, composite fluorine removal agent precursor matching and activating, pore forming material removal and the like. According to the composite fluorine removal agent and the preparation method, the method is simple, the operation is facilitated, the prepared composite fluorine removal agent is used for removing fluorine in zinc sulfate leach liquor during zinc removal hydrometallurgy and has the advantages of being large in fluorine removal amount and rapid and efficient, the composite fluorine removal agent can be recycled through regeneration of inorganic aluminum salt, inorganic magnesium salt or alkali liquor easily, and the fluorine removal comprehensive cost is low.

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Cited By (1)

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    CN-105080507-ANovember 25, 2015北京矿迪科技有限公司Acidic water fluorine and chlorine removal agent based on biomass waste and preparation method of removal agent