- 學位論文
以支撐式液態薄膜從血糖測量儀廢試片中回收鈀
Palladium Extraction from wasted Glucometer Strip via Supported Liquid membrane Process
摘要
葡萄糖電化學測試條（GETS）作為鈀的主要替代資源，已用於通過浸出階段將廢水從固體轉化為液體。使用與浸出劑，濃度，溫度，攪拌速度，接觸持續時間和S / L比相同的參數分析浸出方法。使用不同的標準（例如稀釋劑，濃度和O：比率）研究了使用2-Nonanone萃取溶劑的方法。使用的參數是汽提劑，濃度和O：A的比率。 除了在儀器操作中的接觸時間，流速和壓力外，還通過浸出過程和溶劑萃取中的選定參數執行負載的液膜（SLM）。其參數將持續24小時以調查最佳回收率。 SLM被選為在單個單元中進行金屬提取的先進技術。浸出的最佳參數是使用1M H 2 SO 4； 150°C; 500 rpm; 24小時; 1:20 S：L比。與通過在Isopar-G中以3：2的2-Nonanone按1：2 O萃取溶劑相同：比例達到最佳值將使用4M H 2 SO 4汽提鈀濃度；以1：8 A：O的比例。簡而言之，應用於SLM進料：萃取劑：汽提劑比例的溶劑萃取中選擇的參數為6：3：1。 SLM循環為汽提劑提供了4. 49倍高濃度的濃縮進料。從最初的17.8 ppm到80 ppm。 SLM機器的回收效率為74.906％。該汽提溶液的濃縮液相已經在3M草酸中沉澱並且在5小時內在500度下煅燒，以生產具有77.3％的Pd-Zn純度的鈀粉末。
並列摘要
Glucometer Electrochemical Test Strips (GETS) as Palladium 's main alternative resource material has been used to transform wastewater from solid to liquid via leaching phase. The leaching method was analyzed using the same parameters as though the leaching agent, concentration, temperature, pace of agitation, contact duration, and S / L ratio. The extraction of solvents using 2-Nonanone was studied using different criteria such as diluent, concentration and O: a ratio. The parameter used is a ratio of stripping agent, concentration, and O: A. The supported liquid membrane (SLM) was performed by selected parameters from the leaching process and solvent extraction aside from the contact time, flow rate and pressure in instrument operation. Its parameter will continue to 24 hours to investigate the optimum recovery rate. SLM was chosen as advanced technology with metal extraction in a single unit. Optimum parameters for leaching are using 1M H₂SO₄; 150°C; 500 rpm; 24 hours; 1:20 S: L ratio. As same as solvent extraction via 3% 2-Nonanone in Isopar-G by 1:2 O: A ratio has reached optimum Palladium concentration will be stripped using 4M H₂SO₄; by 1:8 A: O ratio. In a nutshell, selected parameter from solvent extraction applied to SLM process of Feed: Extractant: Stripping Agent Ratio is 6:3:1. The SLM cycle provided enriched feed of 4.49 times greater concentration to stripping agent. From initial 17.8 ppm to 80 ppm. The SLM machine has a recovery efficiency of 74.906 per cent. This concentrated liquid phase of the strip solution had achieved precipitation in 3 M oxalic acid and calcination in 500 degrees within 5 hours in order to produce Palladium powder with Pd-Zn purity of 77.3%.