Kettrup, “Solvent Extraction of Noble Metals by Formazans. II. The Effect of ortho-Substituents of Formazans on their Extraction and Stripping Behaviour,” Hydrometallurgy , 19 (1987), pp. 51–68.M. Grote, U. Huppe and A. Kettrup, “Solvent Extraction of Noble Metals by Formazans. II...
Solvent extraction of noble metals by formazans. II 来自 mendeley.com 喜欢 0 阅读量: 17 作者:M Grote,U Huppe,A Kettrup 摘要: Eight systematically substituted 1,5-diphenyl formazans, dissolved separately in toluene, chloroform and dichloromethane, were investigated as liquid-liquid extractants. ...
Solvent extraction of noble metals with derivatives of thiourea Studies on the use of diphenylthiourea, hexamethylene-N'-phenylthiourea, N,N-hexa-methylene-N'-isohexylthiourea and di-tert-butylthiourea for the extraction and group concentration of noble metals are reported. A preliminary treatment ...
Liquid liquid extraction (LLE), also known as solvent extraction, is a method used to distribute one or more species (solutes) between two immiscible liquids in contact with each other due to a difference in solubility. From: Computer Aided Chemical Engineering, 2019 ...
Inorder to efficiently obtain the optimum hybrid extraction solventsfor mercaptan removal from liquefied petroleum gas, the method ofcombining molecular dynamics simulation preselection and extractionexperiment was carried out. The results show that the selected hybridsolvents all exhibit a better extraction ...
The extraction of iron(III) from chloride solutions at macrolevel concentration by different solvents such as tri-n-butyl phosphate (TBP), di(2-ethylhexyl) phosphoric acid (D2EHPA), and their mixture in various proportions has been investigated at different acid concentrations. The synergistic extr...
Evaluation of Solvent Extraction System for Recycling of Used Motor Oils Solvent extraction technique is one of the cheapest and most efficient processes experienced in recycling of used lubricating oils. In this paper, the perf... NO Elbashir,SM Alzahrani,MIA Mutalib,... - Petrotech the Third...
The present invention teaches how this can be done by using solvent extraction, surface impingement, incident laser light and analysis of the resulting emitted Raman spectrum of the sample in a nano-based sensor, to identify the presence of the chemical compounds of concern. It may help, in ...
ratiosof thenoblemetalsinhydrochloric acid,givessatisfactory recoveries;theaveragerelative errorsforPt.,Pd.Rh,Ir.andAuare0.2.0.3.0.5.1.1.and0.4%. respectively. Thefirstapplication ofdiphenylthiourea asanextraction reagentfor preciousmetalswasreported byGeilmannandNeeb[l] whoseparated rutheniumfromosmium....
2. The process of claim 1, wherein the pretreating of step (a) and extracting of step (b) occur simultaneously by mixing coal, carbon monoxide, water, and an organic solvent in a combined pretreatment and extraction zone. 3. The process of claim 1, wherein the pretreatment of step (a...