Recovery methods of Palladium from waste catalysts with selective precipitation was discussed in this papers The optimum preparation process was obtained Recovery product quality of Palladium powder correspond the state standard The result shows that the process is a best technique, simple and economical for recovery of Palladium from waste catalyst
提出了选择性沉淀法从废钯炭催化剂中回收金属钯的方法 ,给出了最佳制备工艺参数 ,回收制备的金属钯粉达到国家标准要求 ,工艺简单 ,金属回收率高 ,成本低 ,经济效益显
According to the difference between tungsten compound and compounds of molybdenum, arsenic, antimony and tin, a novel process for selective precipitation of Mo, As, Sb and Sn from tungstate solution has been developed by means of the precipitating agent M 115 a , with the (NH 4) 2WO 4 solution containing WO 3, Mo, As, Sn and Sb of ρ WO 3 , ρ Mo , ρ As , ρ Sn and ρ Sb were 210, 0.
应用合成的改进型试剂M115 a,研究了从钨酸盐溶液中选择性沉淀除钼、砷、锡、锑等杂质的新工艺。
The preferred ion precipitation technology for extracting tea polyphenols (TP) was investigated, and the ingredients of the product were analyzed with high performance liquid Chromatography.
探讨了离子沉淀法提取茶多酚的最佳工艺条件,并运用高效液相色谱对茶多酚产品进行了成分分析。
Extraction process of TP and caffeine (caf) by mixed solvent composed of water and alcohol, scale-up law of agitating tank, ion precipitation process and flocculation process for TP were studied thoroughly.
本文研究了茶叶茶多酚、咖啡碱的乙醇水溶液提取过程，茶多酚的离子沉淀过程及絮凝沉淀脱咖啡碱过程，提出了乙醇水溶液提取、离子沉淀-絮凝纯化生产茶多酚的新工艺，并对提取搅拌槽的放大规律进行了实验研究。
