Web1 Cyanex272在萃取分离稀土方面的应用. 椐查《化学文摘》得知,有关Cyanex272萃取剂的文献自80年代初问世以来已发表了数百余篇。其中绝大部分是应用Cyanex272进行金属 … Web对HDEHP(H2B2)和HEH/EHP(H2L2)混合萃取剂在硫酸介质中萃取稀土元素(La,Nd,Sm,Gd)的机制进行了研究。研究表明,在水相平衡pH=2. ...
HDEHP 萃取法从裂变产物中分离
WebInvestigations into the behaviour of a number of support materials retaining HDEHP have indicated that a poly-(vinyl chloride/vinyl acetate) copolymer (‘Corvic’, ... WebDec 13, 2011 · 表3 列出从2 月16 日至3 结果表明,尽管Lix984浓度比M5640 高9.1%,当PLS 含铜量均为7g/l 时,M5640 的萃取率96%, 铜的实际净迁移量 0.4g/lCu, 而Lix984 分别为92%和0.2g/lCu。. 值得一提的是,M5640 系统PLS 的pH1.7 而Lix984 系统的pH 为2.7。. 也就是说,M5640 不仅有较强的负载能力 ... lowveld canvas nelspruit
CN85102244B - 膦酸酯液-液萃取分离稀土元素 - Google Patents
Di-(2-ethylhexyl)phosphoric acid (DEHPA or HDEHP) is an organophosphorus compound with the formula (C8H17O)2PO2H. The colorless liquid is a diester of phosphoric acid and 2-ethylhexanol. It is used in the solvent extraction of uranium, as well as the rare-earth metals. See more DEHPA is prepared through the reaction of phosphorus pentoxide and 2-ethylhexanol: 4 C8H17OH + P4O10 → 2 [(C8H17O)PO(OH)]2O [(C8H17O)PO(OH)]2O + C8H17OH → (C8H17O)2PO(OH) … See more Extraction DEHPA is used in the solvent extraction of uranium salts from solutions containing the sulfate, chloride, or perchlorate anions. This extraction is known as the “Dapex procedure.” Reminiscent of the behaviors of See more WebJan 11, 2024 · 由2-乙基己醇与三氯氧磷进行酯化反应,生成磷酸二异辛基酰氯,用碱液使酰氯水解得钠盐,经硫酸酸化而得。. 1.酯化在搪玻璃反应锅内,先加入三氯氧磷,搅拌冷 … Web标准名称: 低放有机废液 90sr活度浓度测定 hdehp萃取色层-β计数法 标准号: ej/t 20245-2024 中国标准分类号: f74 发布日期: 2024-01-18 国际标准分类号: 17.24 实施日期: … lowveld chain gang