U3O8型铀矿石浓缩物的溶解液铀质量浓度最大值探讨

在探讨单因素对溶解液ρ(U)的影响基础上,对比、分析了诸如U3O8型铀矿石浓缩物的w(U)、w(H2O)以及m(P)/m(U)的影响强度。结果表明:w(U)与溶解液ρ(U)呈正相关,U3O8型铀矿石浓缩物的w(U)每增加1%,溶解液ρ(U)平均增加4.8～5.7g/L;w(H2O)与溶解液ρ(U)值呈负相关,w(H2O)每增加1%,ρ(U)最大值下降46.1～55.2g/L;m(P)/m(U)与溶解液ρ(U)值呈负相关,m(P)/m(U)每增加0.1%,ρ(U)最大值平均下降116.0～181.0g/L。当w(U)=62.5%,不考虑m(P)/m(U)的影响时,溶解液ρ(U)最大值为1 578g/L;在m(P)/m(U)=0.35%条件下,ρ(U)最大值下降至716g/L,ρ(U)最大值下降54.5%:故m(P)/m(U)为瓶颈控制因素。

A discussion about maximum uranium concentration in digestion solution of U3O8 type uranium ore concentrate

On the basis of discussing the influence of single factor on maximum uranium concentration in digestion solution,the influence degree of some factors such as U content,H2O content,mass ratio of P and U was compared and analyzed.The results indicate that the relationship between U content and maximum uranium concentration in digestion solution was direct ratio,while the U content increases by 1%,the maximum uranium concentration in digestion solution increases by 4.8%-5.7%.The relationship between H2O content and maximum uranium concentration in digestion solution was inverse ratio,the maximum uranium concentration in digestion solution decreases by 46.1-55.2 g/L while H2O content increases by 1%.The relationship between mass ratio of P and U and maximum uranium concentration in digestion solution was inverse ratio,the maximum uranium concentration in digestion solution decreases by 116.0-181.0 g/L while the mass ratio of P and U increase 0.1%. When U content equals 62.5% and the influence of mass ratio of P and U is no considered,the maximum uranium concentration in digestion solution equals 1 578 g/L;while mass ratio of P and U equals 0.35%,the maximum uranium concentration decreases to 716 g/L,the decreased rate is 54.6%,so the mass ratio of P and U in U3O8 type uranium ore concentrate is the main controlling factor.