Studies on the stability of uranium (ⅳ) in solvent extraction system of uranium (ⅳ) nitrate and tributyl phosphate-kerosene

硝酸铀（Ⅳ）-磷酸三丁酯萃取体系中铀（Ⅳ）的稳定性

Corrosion Behavior of 321 Stainless Steel in Low-Acidity Uranium Nitrate Solution

321不锈钢在低酸度 硝酸铀酰溶液中的腐蚀特性

The test and production in preparing uranium dioxide from uranyl nitrate in the fluidized bed by the denitration and reduction

在流化床中 硝酸铀酰脱硝－还原制备 二氧化铀的试生产

Methods : By using the permeable collagen membrane as a substrate we modified the three dimensional fibroblast culture . After being cultured for 6 weeks the fibroblast cultures were double colored with uranium acetate and lead nitrate and finally observed with electron microscopy .

方法：采用可渗性胶原膜（Celgen○R）作为底物，改进成纤维细胞的三维培养，6周培养后的培养物用醋酸 铀 和 硝酸铅双重染色后用电镜进行观察。

As an oxidant in in-situ leach of uranium and elute of saturated resin nitrate has been successfully applied to several mines in our country .

硝酸 盐作为原地浸出采矿的氧化剂和饱和树脂淋洗剂，已成功地应用于国内某些 铀矿山。

The electrochemical corrosion behavior study has been performed to investigate 321 stainless steel in uranium nitrate solutions of the dissolved and saturated oxygen . The corrosion potential and corrosion current density were obtained .

用腐蚀电化学法研究了321不锈钢在有溶解氧的 硝酸铀 酰溶液中的腐蚀电化学特性，测量了电极的腐蚀电位、腐蚀电流密度。

The results indicated that the relatively standard deviations of determination for uranium and nitrate radical are less than 2 % . The determination results by the method are consistent with the high temperature cineration for uranium and the digestion with sodium hydroxide for nitrate radical .

结果表明，该方法测定 铀 和 硝酸 根的相对标准偏差都小于2%，分析结果与高温灰化法测定铀及氢氧化钠浸煮法测定硝酸根的结果基本一致。

Studies on the photochemical reduction of uranyl nitrate to produce uranium (ⅳ) nitrate by formaldehyde

甲醛光化还原 硝酸铀酰制取 硝酸铀（Ⅳ）的研究