钽铌材料中氟元素的镧-茜素络合酮分光光度检测方法
By employing a three-stage gradient temperature-controlled hydrolysis method using lanthanum-alizarin complex ketone spectrophotometry and a ternary composite alkaline absorption solution, the problems of low fluorine content and equipment dependence in traditional methods have been solved, enabling efficient and low-cost detection of fluorine content in tantalum and niobium materials.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- NINGXIA ORIENT TANTALUM INDUSTRY CO LTD
- Filing Date
- 2025-04-22
- Publication Date
- 2026-07-17
AI Technical Summary
Traditional methods cannot effectively distinguish and release the strongly chemically bonded fluorine in tantalum/niobium materials, resulting in low test results and high equipment dependence, which cannot meet the needs of industrial testing.
The lanthanum-alizarin complex ketone spectrophotometric method was used to release fluorine in all forms through high-temperature hydrolysis with three-stage gradient temperature control. Combined with a ternary composite alkaline absorbent and a PTFE hydrophobic membrane, the lanthanum-alizarin complex ketone reagent was used for colorimetric reaction, and a standard working curve was plotted to calculate the fluorine content.
It improves the accuracy and efficiency of fluorine detection in tantalum and niobium materials, reduces equipment costs, shortens detection time, achieves a wide detection range of 0.1ppm to 15000ppm, reduces matrix ion interference, and improves operational convenience.
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Figure CN120334215B_ABST