客服热线:18202992950

METHOD OF EXTRACTING RARE-EARTH ELEMENTS FROM PHOSPHOGYPSUM 发明申请

2023-06-19 4980 274K 0

专利信息

申请日期 2025-07-10 申请号 RU2016152708
公开(公告)号 RU2016152708A 公开(公告)日 2018-07-04
公开国别 RU 申请人省市代码 全国
申请人 Obshchestvo s ogranichennoj otvetstvennostyu "Laboratoriya Innovatsionnykh Tekhnologij"
简介 FIELD : chemistry.SUBSTANCE : invention relates to chemical industry, particularly, to extraction of rare-earth elements from phosphogypsum. Method for extraction of rare-earth elements from phosphogypsum includes preparation of pulp from ground pre-enriched phosphogypsum at ratio of weight of phosphogypsum to volume of water equal to 1 : (1.8–3.0) and sorption of rare-earth elements, which is carried out using gel strong-acid sulphocationite in H-form at ratio of weight of ionite to weight of phosphogypsum equal to 1 : (1–3) at two stages at time of phases contact at stage of 3.5–4.0 hours.EFFECT : invention provides higher degree of extraction of rare-earth elements at stage of sorption leaching to 85–90 %, reduced consumption of sulfuric acid and ionite, simplified process of processing phosphogypsum with production of concentrate of rare-earth elements and gypsum binder as a whole.3 cl, 3 ex


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