Process for producing a phosphate of the lanthanoids, and phosphate produced thereby
    7.
    发明授权
    Process for producing a phosphate of the lanthanoids, and phosphate produced thereby 有权
    用于生产镧系元素的磷酸盐的方法,由此生产磷酸盐

    公开(公告)号:US07270793B2

    公开(公告)日:2007-09-18

    申请号:US11012112

    申请日:2004-12-16

    IPC分类号: C01F17/00

    摘要: A process for producing a phosphate of the lanthanoids is described. The process is based on a two-jet precipitation, starting from separate reservoirs of a rare earth salt solution and a phosphate solution which are introduced simultaneously by separate feedlines into an aqueous acidified initial charge with stirring at a pH of 0≦pH≦1. After the solutions are added, the pH is raised to a pH of >2 to complete the phosphate precipitation.

    摘要翻译: 描述了生产镧系元素的磷酸盐的方法。 该方法基于双喷射沉淀,从分开的稀土盐溶液和磷酸盐溶液开始,其通过分开的进料线同时引入含水酸化的初始进料,并在pH = 0〜 1。 加入溶液后,将pH升高至pH> 2,完成磷酸盐沉淀。