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CN101214992B 一种氧化锌材料的制备方法 失效 - 权利终止

一种氧化锌材料的制备方法
摘要：
本发明涉及一种氧化锌材料的制备方法。一种氧化锌材料的制备方法，其特征在于它包括如下步骤：1)原料的选取：按氧化锌原料与尿素的摩尔比为0.001～0.9，氧化锌原料与水的摩尔比＝0.01～1000，选取氧化锌原料、尿素和水，备用；2)将氧化锌原料、尿素和水混合，将混合物研磨均匀后，得到浆体；3)加热成胶：将步骤2)得到的浆体在121-340℃加热，得透明胶体；4)采用下述两种方法之一制备氧化锌材料：a)水解热分解滤渣获得氧化锌材料；b)热分解：将步骤3)得到的胶体加热到420℃～800℃分解，获得氧化锌材料。该方法具有成本低、反应温度低、能催化尿素热分解得到单氰胺的优点；所得产品具有粒度小、掺杂均匀、比表面积大的特点。
摘要（英）：

The invention relates to a process for preparing zinc oxide material. The preparing process for zinc oxide material is characterized in that the preparing process includes the following steps: 1) selection of material: selecting material containing zinc oxide, urea and water as the mole ratio of zinc oxide and urea is 0.001-0.9 and that of zinc oxide and water is 0.01-1000 as reserve material, 2)blending the material containing zinc oxide, urea and water, grinding the mixture uniformly and obtaining slurry, 3) heating to form colloid: heating the slurry obtained from the step 2) at the temperature between 121-340 DEG C to obtain transparent colloid, 4) employing one of the following two methods to obtain zinc oxide material: a ) heat decompositing filter residue by hydrolysis to obtain zinc oxide material, b ) heat decomposition: heating the colliod obtained from step 3) to the temperature between 420-800 DEG C to obtain zinc oxide material. The method has the advantages of low cost,low reaction temperature and capability of catalyzing urea to heat decomposite to obtain cyanamide. The obtained product is characterized that graininess is small, adulteration is uniform and the product is larger than the specific surface area.

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