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CN107983350A 一种非均相Fenton催化剂的制备方法 无效 - 撤回

一种非均相Fenton催化剂的制备方法
摘要：
一种非均相Fenton催化剂的制备方法，具体步骤如下：步骤如下：对天然硅藻土进行清洗，沉淀，烘干，在350℃下焙烧2h，冷却；按照1g:10ml，将硅藻土与H2SO4溶液混合，搅拌1h，洗至中性，烘干；按照1g:50ml，将硅藻土与Fe(NO3)3溶液混合，在60℃条件下搅拌10min，再滴入相同体积的NaOH溶液，继续搅拌2h，过滤，漂洗，烘干，100~300℃下焙烧2h，制得非均相Fenton催化剂。本方法制备过程易操作，原料易得，过程易控制，催化剂可循环利用，无二次污染，能够实现选矿废水中COD的有效降解并达标排放，具有较好的应用前景。
摘要（英）：

The invention relates to a preparation method of a heterogeneous Fenton catalyst. The preparation method comprises the following steps: washing natural diatomite, precipitating, drying, roasting for 2h at 350 DEG C, and cooling; mixing the diatomite and H2SO4 solution according to a ratio of 1g:10ml, stirring for 1h, washing until the solution is neutral, and drying; then mixing the diatomite andthe Fe(NO3)3 solution according to a ratio of 1g:50ml, stirring for 10min at 60 DEG C, then dropwise adding NaOH solution of a same volume, continuously stirring for 2h, filtering, rinsing, drying, roasting for 2h at 100 to 300 DEG C, and obtaining the heterogeneous Fenton catalyst. The preparation method is simple in preparation operation, easy in obtaining raw materials, and easy in controllinga process; and the catalyst is recyclable, the secondary pollution can be avoided, COD in ore dressing waste water can be effectively degraded and discharged under certain standard, and the application prospect is relatively good.

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