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Extraction of scandium from red mud by modified activated carbon and kinetics studyZHOU Hualei~(a,b) LI Dongyan~a TIAN Yajun~a CHEN Yunfa~a ~a State Key Laboratory of Multi-phase Complex System... adsorbent dosage (~6.25 g/L),adsorption temperature(308 K),and adsorption time(40 min)were figured out.A pseudo-second-order kinetics model was em- ployed for describing the adsorption process......
J. Cent. South Univ. (2016) 23: 1052-1057 DOI: 10.1007/s11771-016-0354-y Tungsten removal from molybdate solutions using chelating ion-exchange resin: Equilibrium adsorption isotherm and kinetics... words: tungsten; molybdate; ion-exchange resin; isotherms; kinetics 1 Introduction The separation between W and Mo has been a national difficulty due to their extremely similar physicochemical......
Trans. Nonferrous Met. Soc. China 23(2013) 517-523 Kinetics of cobalt(II) extraction from sulfate aqueous solution by sodium salt of di-decylphosphinic acid (DDPA) Peng XING1, Cheng-yan WANG1, Sheng... University, Beijing 100084, China Received 10 April 2012; accepted 23 May 2012 Abstract: Kinetics of Co(II) extraction from sulfate aqueous solution by the sodium salt of di-decylphosphinic acid (Na-DDPA......
inception is briefly traced. The comparison of extraction efficiency, thermodynamics and kinetics mainly involving extraction of rare earth ions between molten solvent extraction at high temperature...Solid-liquid solvent extraction of metal ionsBo Peng, Haiyan Fan, and Jinzhang GaoDepartment of Chemistry, Northwest Normal University, Lanzhou 730070, China摘 要:
distribution of the matte on the kinetics of nickel extraction is presented in Fig.6. The extraction rate of nickel decreases with increasing the particle size. The faster rate of nickel extraction observed... of initial copper ion concentration on nickel extraction from matte 3.8 Kinetics of nickel leaching from matte In this work, the well-known shrinking-particle model was chosen to represent......
J. Cent. South Univ. Technol. (2008) 15: 679-683 DOI: 10.1007/s11771-008-0126-4 Leaching kinetics of low grade zinc oxide ore in NH3-NH4Cl-H2O system WANG Rui-xiang(王瑞祥)1, 2, TANG Mo-tang(唐谟堂)1...; Abstract: The leaching kinetics of low grade zinc oxide ore in NH3-NH4Cl-H2O system......
Trans. Nonferrous Met. Soc. China 24(2014) 1937-1945 Kinetics of cerium(IV) and fluoride extraction from sulfuric solutions using bifunctional ionic liquid extractant (Bif-ILE) [A336][P204] Hua-ling..., Changchun 130022, China; 2. School of Chemistry and Chemical Engineering, Nantong University, Nantong 226007, China Received 18 July 2013; accepted 7 April 2014 Abstract: The extraction kinetics......
. Studies of PMC leaching kinetics showed that the process can take 3 h with nitric acid consumption 150%-200% of a stoichiometry. Under these conditions, tantalum and niobium extraction to solution... leaching and solvent extraction S M MASLOBOEVA, L G ARUTYUNYAN, M N PALATNIKOV, D V MANUKOVSKAYA Tananaev Institute of Chemistry – Subdivision of the Federal Research Centre, Kola Science Centre......
Electrochemical process of titanium extraction CH. RVS. NAGESH, C. S. RAMACHANDRAN Defence Metallurgical Research Laboratory, Hyderabad, A.P. India-500058 Received 20 November 2005; accepted 9...; Abstract: A wide variety of processes are being pursued by researchers for cost effective extraction of titanium metal. Electrochemical processes are promising due to simplicity and being less capital......
J. Cent. South Univ. Technol. (2010) 17: 765-769 DOI: 10.1007/s11771-010-0554-9 Extraction of valuable metals from low-grade nickeliferous laterite ore by reduction roasting-ammonia leaching method... agent can be also recycled at room temperature and normal pressure. Key words: low-grade nickeliferous laterite ore; nickel; cobalt; reduction roasting; ammonia leaching; extraction