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Method for preparing superfine praseodymium zirconium yellow ceramic pigment by molten salt assisted hydrothermal method
The invention provides a method for preparing a superfine praseodymium zirconium yellow ceramic pigment by using a molten salt assisted hydrothermal method, which comprises the following steps: preparing a Pr-ZrSiO4 precursor by using a zirconium source, a silicon source and a praseodymium source as raw materials by using a hydrothermal method, and carrying out molten salt assisted low-temperature heat treatment to prepare the praseodymium zirconium yellow ceramic pigment with excellent color generation performance. The crystal dissolution-precipitation-growth process of the Pr-ZrSiO4 pigment is regulated under the assistance of molten salt, and a steric hindrance effect is generated in the low-temperature heat treatment process, so that low-temperature synthesis of the fine, high-dispersity and excellent-color-rendering-performance Pr-ZrSiO4 pigment is realized, subsequent ball milling treatment is not needed, the particle size distribution is uniform, the dispersity is good, the particle size is smaller than 100 nm, and the color rendering effect is good. The method is suitable for being applied to the fields with relatively high requirements on granularity, such as ceramic ink preparation by ceramic ink-jet printing; in addition, the method is simple in process, short in preparation period, low in energy consumption and easy for large-scale production, and has important significance in promoting technical progress and application development of the Pr-ZrSiO4 yellow pigment.
本发明提供了一种熔盐辅助水热法制备超细镨锆黄陶瓷颜料的方法，该方法以锆源、硅源和镨源为原料，通过水热法制备Pr‑ZrSiO4前驱体，再经熔盐辅助于低温热处理制得呈色性能优异的镨锆黄陶瓷颜料，经熔盐辅助调控Pr‑ZrSiO4颜料的晶体溶解‑析出‑生长过程，在低温热处理过程中产生空间位阻效应，从而实现细小、高分散性且呈色性能优异Pr‑ZrSiO4颜料的低温合成，无需后续球磨处理，粒度分布均匀且分散性好，颗粒尺寸小于100nm，适合应用于陶瓷喷墨打印制备陶瓷墨水等对粒度有较高要求的领域；并且本发明工艺简单、制备周期短、能耗低，易于大规模生产，对于促进Pr‑ZrSiO4黄色颜料的技术进步和应用发展具有重要意义。
Method for preparing superfine praseodymium zirconium yellow ceramic pigment by molten salt assisted hydrothermal method
The invention provides a method for preparing a superfine praseodymium zirconium yellow ceramic pigment by using a molten salt assisted hydrothermal method, which comprises the following steps: preparing a Pr-ZrSiO4 precursor by using a zirconium source, a silicon source and a praseodymium source as raw materials by using a hydrothermal method, and carrying out molten salt assisted low-temperature heat treatment to prepare the praseodymium zirconium yellow ceramic pigment with excellent color generation performance. The crystal dissolution-precipitation-growth process of the Pr-ZrSiO4 pigment is regulated under the assistance of molten salt, and a steric hindrance effect is generated in the low-temperature heat treatment process, so that low-temperature synthesis of the fine, high-dispersity and excellent-color-rendering-performance Pr-ZrSiO4 pigment is realized, subsequent ball milling treatment is not needed, the particle size distribution is uniform, the dispersity is good, the particle size is smaller than 100 nm, and the color rendering effect is good. The method is suitable for being applied to the fields with relatively high requirements on granularity, such as ceramic ink preparation by ceramic ink-jet printing; in addition, the method is simple in process, short in preparation period, low in energy consumption and easy for large-scale production, and has important significance in promoting technical progress and application development of the Pr-ZrSiO4 yellow pigment.
本发明提供了一种熔盐辅助水热法制备超细镨锆黄陶瓷颜料的方法，该方法以锆源、硅源和镨源为原料，通过水热法制备Pr‑ZrSiO4前驱体，再经熔盐辅助于低温热处理制得呈色性能优异的镨锆黄陶瓷颜料，经熔盐辅助调控Pr‑ZrSiO4颜料的晶体溶解‑析出‑生长过程，在低温热处理过程中产生空间位阻效应，从而实现细小、高分散性且呈色性能优异Pr‑ZrSiO4颜料的低温合成，无需后续球磨处理，粒度分布均匀且分散性好，颗粒尺寸小于100nm，适合应用于陶瓷喷墨打印制备陶瓷墨水等对粒度有较高要求的领域；并且本发明工艺简单、制备周期短、能耗低，易于大规模生产，对于促进Pr‑ZrSiO4黄色颜料的技术进步和应用发展具有重要意义。
Method for preparing superfine praseodymium zirconium yellow ceramic pigment by molten salt assisted hydrothermal method
一种熔盐辅助水热法制备超细镨锆黄陶瓷颜料的方法
ZHANG XIAOJUN (author) / JIANG FENG (author) / XU YANQIAO (author) / FENG GUO (author) / HU QING (author) / WU QIAN (author)
2024-09-10
Patent
Electronic Resource
Chinese
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