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Showing 1 to 4 of 4 for “"NICKEL PRODUCTION"”.
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ΕΚΧΥΛΙΣΗ ΛΑΤΕΡΙΤΩΝ ΜΕ ΘΕΙΙΚΟ ΟΞΥ ΥΠΟ ΠΙΕΣΗ
THE EXTRACTION OF NICKEL AND COBALT FROM LOW GRADE GREEK LATERITE ORIS IS ACCELARATED AT CONDITIONS OF HIGH TEMPERATURE- PRESSURE. THE EXTRACTION VALUES REACH100% UNDER CONDITIONS OF 220-260 C TEMPERATURE, 40-60 BAR PRESSURE 2 H DURATION. NUTRALIZATION OF THE EFFLVENTS IS VERY SATISFACTORY. THE …
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Control of Surface Chemistry of Gold, Pyrite and Pyrrhotite
… pentlandite play a critical role in coal and nickel production, respectively, to meet the stringent restriction on SO2 emission. The present project investigates first the mechanism of xanthate adsorption on gold using Atomic Force Microscope (AFM), then the depression of pyrite and pyrrhotite …
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Nickel laterites, origin and climate
Nickel laterites account for ?40 % of global nickel production and contain 60 % of the world's total land based nickel resources. Despite the importance of these deposits published studies, detailing their morphology and formation processes are relatively few and the interaction of variables …
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ΒΕΛΤΙΣΤΟΠΟΙΗΣΗ ΤΗΣ ΕΚΧΥΛΙΣΗΣ ΛΑΤΕΡΙΤΩΝ ΜΕ ΘΕΙΙΚΟ ΟΞΥ
THE ATMOSPHERIC PRESSURE LEACHING OF NICKELIFEROUS LATERITES BY SULFURIC ACID IS AN ALTERNATIVE METHOD TO THE HIGH PRESSURE LEACHING. TWO TYPES OF ORES WERE STUDIED (SERPENTINIC, HEMATITIC) AND THE INFLUENCE OF VARIOUS PARAMETERS LIKE LEACHING TEMPERATURE, ACID CONSUMPTION, PULP DENSITY, PREHEATING …