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Preparation method of zirconium oxide granulation powder with low chlorine ion content
The invention discloses a preparation method of zirconium oxide granulation powder with low chlorine ion content, which comprises the following steps: simultaneously adding an aqueous solution of zirconium oxychloride, yttrium chloride and a precipitant into a reaction kettle at a certain flow rate for reaction, washing and drying to obtain loose spherical precursor powder, calcining the powder, mixing with pure water again, and drying to obtain the zirconium oxide granulation powder with low chlorine ion content. And introducing carbon dioxide, stirring and washing, then carrying out solid-liquid separation, and finally sanding and granulating to obtain the granulated powder. The invention solves the problems of poor chloride ion removal effect, high cost and serious wastewater pollution in the existing process for preparing the zirconium oxide granulation powder by a liquid phase method. The preparation method disclosed by the invention is simple, efficient, environment-friendly and low in cost, and the content of chloride ions in the granulation powder is less than 10ppm.
本发明公开了一种低氯离子含量的氧化锆造粒粉的制备方法，包括以下步骤：先将氧氯化锆、氯化钇和沉淀剂三者的水溶液以一定的流量同时加入反应釜中反应，再经洗涤、干燥获得疏松球状前驱体粉体，粉体煅烧后再次与纯水混合，并通入二氧化碳搅拌洗涤，然后固液分离，最后砂磨造粒制得造粒粉。本发明解决了现有的液相法制备氧化锆造粒粉工艺中氯离子脱除效果差、成本高、废水污染大的问题。本发明的制备方法简单高效、环保且低成本，造粒粉中的氯离子含量小于10ppm。
Preparation method of zirconium oxide granulation powder with low chlorine ion content
The invention discloses a preparation method of zirconium oxide granulation powder with low chlorine ion content, which comprises the following steps: simultaneously adding an aqueous solution of zirconium oxychloride, yttrium chloride and a precipitant into a reaction kettle at a certain flow rate for reaction, washing and drying to obtain loose spherical precursor powder, calcining the powder, mixing with pure water again, and drying to obtain the zirconium oxide granulation powder with low chlorine ion content. And introducing carbon dioxide, stirring and washing, then carrying out solid-liquid separation, and finally sanding and granulating to obtain the granulated powder. The invention solves the problems of poor chloride ion removal effect, high cost and serious wastewater pollution in the existing process for preparing the zirconium oxide granulation powder by a liquid phase method. The preparation method disclosed by the invention is simple, efficient, environment-friendly and low in cost, and the content of chloride ions in the granulation powder is less than 10ppm.
本发明公开了一种低氯离子含量的氧化锆造粒粉的制备方法，包括以下步骤：先将氧氯化锆、氯化钇和沉淀剂三者的水溶液以一定的流量同时加入反应釜中反应，再经洗涤、干燥获得疏松球状前驱体粉体，粉体煅烧后再次与纯水混合，并通入二氧化碳搅拌洗涤，然后固液分离，最后砂磨造粒制得造粒粉。本发明解决了现有的液相法制备氧化锆造粒粉工艺中氯离子脱除效果差、成本高、废水污染大的问题。本发明的制备方法简单高效、环保且低成本，造粒粉中的氯离子含量小于10ppm。
Preparation method of zirconium oxide granulation powder with low chlorine ion content
一种低氯离子含量的氧化锆造粒粉的制备方法
YANG JIE (author) / CHEN XIAO (author) / LU YANLONG (author)
2024-07-12
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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