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本文介绍了碳钠钙铀矿的合成原理,并介绍了在18℃、37℃、60℃、80℃、92℃下的合成实验过程。然后,对合成的碳钠钙铀矿进行了X射线粉晶衍射分析、化学分析、差热分析、热失重分析、光性鉴定及红外光谱分析。此外,对合成碳钠钙铀矿还进行了荧光光谱研究及碳钠钙铀矿成矿母液pH值范围及成矿过程中pH值变化实验。该实验表明:母液稳定pH值范围为7.22—9.30,能形成碳钠钙铀矿的母液值范围为8.00—9.30,结晶形成过程中,母液pH值向一个很窄的pH值范围靠拢,即pH为8.00—8.25。
In this paper, the synthesis principle of carbonaceous-calcium uranium deposits is introduced. The synthesis experiment at 18 ℃, 37 ℃, 60 ℃, 80 ℃, 92 ℃ is introduced. Then, X-ray powder diffraction, chemical analysis, differential thermal analysis, thermogravimetric analysis, photometric identification and infrared spectrum analysis of the synthesized soda-lime uranium ore were carried out. In addition, the fluorescence spectra of the synthetic soda-lime uranium deposit and the pH value of the ore-forming mother liquor of the soda-limestone uranium deposit were also studied. The experimental results show that the stable pH range of the mother liquor is 7.22-9.30, the mother liquor value of the soda-limestone uranium deposit is 8.00-9.30. During the crystallization process, the pH value of the mother liquor is close to a very narrow pH range, that is, the pH For 8.00-8.25.