Synthesis and crystallization of lanthanum phosphate via solid state reaction

WU Hongte; LIAO Sen; WU Wenwei; CHEN Xia; WANG Tianshun

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Synthesis and crystallization of lanthanum phosphate via solid state reaction

更新时间：2025-12-10

- Synthesis and crystallization of lanthanum phosphate via solid state reaction
- CIESC Journal Issue 11, Pages: 2943-2947(2007)
- 作者机构：
  
  1. 长江大学化学与环境工程学院
  2. 广西大学化学化工学院
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Online First：05 November 2007，
  
  Published：05 November 2007
- 稿件说明：
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WU Hongte, LIAO Sen, WU Wenwei, et al. Synthesis and crystallization of lanthanum phosphate via solid state reaction[J]. CIESC Journal, 2007, (11): 2943-2947.
DOI：

WU Hongte, LIAO Sen, WU Wenwei, et al. Synthesis and crystallization of lanthanum phosphate via solid state reaction[J]. CIESC Journal, 2007, (11): 2943-2947. DOI：

摘要

对合成功能材料磷酸镧的新方法进行了研究，以聚乙二醇-400 （PEG-400）为表面活性剂，LaNO38226;6H2O和(NH4)3PO48226;3H2O为原料，用低热固相反应法成功合成得到磷酸镧。用产物XRD图谱数据计算得到的结晶度作为试验的考察指标，试验中应用了均匀设计试验法及数据挖掘技术，在数据挖掘成果的指导下进行了试验。试验结果表明，用最优工艺条件合成得到的产物为23nm的LaPO48729;0.5H2O，结晶度为97.8%与数据挖掘得到的最佳结果相吻合。TG/DTA分析结果表明LaPO48729;0.5H2O在300℃下加热脱水可以转变成为LaPO4。

Abstract

The low heat solid state reaction method for the synthesis of functional material lanthanum phosphate was studied

and the target product was obtained successfully with La(NO3)3·6H2O and (NH4)3PO4·3H2O as raw materials and PEG-400 as surfactant via the low heat solid state reaction.Crystallization calculated with XRD data of the product was used as the testing index

and application of uniform experimental design as well as data mining technology were used in the test.The synthesis tests were performed under the guidance of the results of data mining technology.The test results indicated that the product synthesized with the optimal technical condition was LaPO4·0.5H2O with the size of 23 nm and crystallization of 97.8%.TG/DTA analysis results indicated that LaPO4 could be obtained from dehydration of LaPO4·0.5H2O at 300℃.

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