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A review of the precipitation of nickel from salt solutions by hydrogen ...

Y. Yang, P. Taskinen, K. LiliusPressure hydrogen reduction of nickel, cobalt and copper ... W. Kunda, R. HitesmanThe reduction of cobalt from its aqueous ammine ... Evans, V.N. MackiwAqueous reduction in the recovery of nickel from laterites.


(PDF) Recovery of Nickel&Oil from hydrogenation catalyst

Jul 31, 2018 ... In the present study, a simple recovery process for nickel... ... Then ammonium oxalate was added, followed by dilute ammonia solution to...


Effect of leaching time on recovery of nickel and copper. Download ...

The highest percentage recovery of nickel (32.9%) was achieved with ammonia concentration of 3 M. This deviation from can be attributed to the cementation of...


Recovery of nickel from spent Ni/Al2O3 catalysts using acid ISCA

ammonia plants), in petroleum refineries, in the chemicals sector, in various ... The metal recovery from nickel catalyst is also extremely important from an...


Recovery of Nickel from Reformer Catalysts of Direct Reduction ...

The present research studied the Nickel recovery from spent catalysts of ... in production units of methanol, ammonia, and in refining and production of sponge...


Recovery of Nickel from Spent Industrial ... ACS Publications

Jan 4, 2010 ... Approximately 95% Ni recovery was achieved in the Ni extraction .... acid.26 Amino polycarboxylic acid chelating agents [e.g., EDTA,.


Efficient and selective recovery of Ni, Cu, and Co from low nickel ...

Mar 9, 2017 ... During the oxidative ammonia leaching process, the metal extraction efficiencies of Ni 81.07%, Cu 93.81%, and Co 71.74% were obtained...


Solvent extraction technique for removal and recovery of nickel from ...

Nickel is extracted with trimethyl amine in kerosene as organic solvent. ... KEYWORDS : Extraction, Stripping, Recovery, TMA, Kerosene, Wastewater.


Recovery of nickel from spent NiO/Al2O3 catalyst ... SAGE Journals

Effective recovery of nickel (Ni) from spent NiO/Al2O3 catalyst in a simple hydrometallurgical route is suggested. ... sulfate was precipitated by adding ammonia.


Separation and Recovery of Nickel and Copper from Multi Metal ...

N902 diluted with kerosene was used to co extract copper and nickel from the ... Separation and Recovery of Nickel and Copper from Multi Metal Electroplating .... of Ni and Cu, ammonia scrubbing from the loaded organic phase and selective...

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