共搜索到4609条信息,每页显示10条信息,共461页。用时:0小时0分0秒223毫秒
was considered as the best ion-removal system, which can guarantee a high iron removal efficiency, small amount of cobalt, nickel lost, and is conducive to the subsequent separation of cobalt and nickel. The results show that the optimal ion-removal conditions in carbonate-ammonia system are determined as follows: (CoNi)/ Fe3+ concentration ratio of 1.5-2.5; ammonia concentration of 1 mol/L......
识码:A 文章编号:1672-7207(2008)02-0307-04 Removal of acid fuchsine using nanoscale zero valent iron REN Hai-ping, WU Liu-ming, ZHAO Shou-chun (School..., nanoscale zero valent iron dosage and pH on the removal of acid fuchsine by the particles was studied, and the removal mechanism of acid fuchsine was discussed. The results show that the obtained......
......
; 初始溶液pH对U(Ⅵ)去除效果的影响 图4 初始溶液pH对G-nZVI去除溶液中U(Ⅵ)的影响 Fig. 4 Effect of initial solution pH on removal of U(Ⅵ) by G-nZVI 在溶液固液比为0.25 g/L,U(Ⅵ)质量浓度为10 mg/L,反应时间为60 min,反应温度为25 ℃条件下,初始溶液pH对G-nZVI...-nZVI去除溶液中U(Ⅵ)的影响 Fig. 5 Effect of reaction time on removal of U(Ⅵ) by G-nZVI 从图5可以看出,在60 min之前,G-nZVI对U(Ⅵ)的去除率和吸附容量随着时间的增加而急剧上升,60 min后,G-nZVI对U(Ⅵ)的去除率和吸附容量增加速度开始减慢,到80 min时,去除率和吸附容量均达到最大值,分别为......
......
......
. 关键词: SbO;硫酸锌电解液;除钴; 中图分类号: TF813 收稿日期:1999-10-18 Mechanism of Sb2O3 in removal of cobalt in zinc sulphate solution Abstract: Potential pH pattern of Co Sb H 2O system shows that the thermodynamic driving power of removal of cobalt by cementation using zinc powder is raised when metallic compound (CoSb) is formed between cobalt and antimony......
......
......
, the comprehensive result of impurities elimination is the best, the removal rate of As, Sb, Bi, Fe are 94.17%, 45.95%, 88.64% and 98.83% respectively. Key words: copper sulfate; arsenic; antimony; bismuth; removal <上一页 1 2 3 4 5 6 7 8 9 10 ... 461 下一页 >