客服热线:18202992950

Colloidal dispersion of particles of a rare-earth vanadate or phosphovanadate 发明申请

2023-04-27 4310 498K 0

专利信息

申请日期 2025-07-16 申请号 US11803063
公开(公告)号 US20070213413A1 公开(公告)日 2007-09-13
公开国别 US 申请人省市代码 全国
申请人 CHANE CHING JEAN YVES; LE MERCIER THIERRY
简介 The invention concerns a colloidal dispersion of a vanadate or a phosphovanadate of at least a rare earth comprising either a complex-forming agent having a pK higher than 2.5, or an anion of a monovalent acid, soluble in water and having a pKa ranging between 2.5 and 5. The dispersion is obtained by contacting a colloidal dispersion or a dispersion of initial complexes comprising at least a rare earth compound and at least a complex-forming agent or an anion of said monovalent acid and whereof the pH has been adjusted to a value of at least 7, with vanadate ions, then, in adjusting the pH of the resulting medium to a value of at least 9 and heating.


您还没有登录,请登录后查看下载地址


反对 0举报 0 收藏 0 打赏 0评论 0
下载排行
网站首页  |  关于我们  |  联系方式  |  使用协议  |  版权隐私  |  网站地图  |  排名推广  |  广告服务  |  积分换礼  |  网站留言  |  RSS订阅  |  违规举报  |  京ICP备2021025988号-4