Hydrometallurgy

INTRODUCTION Chromium is used in many industrial processes. For example, chromium is used in almost coats to lay down them harder and much yucky to corrosion and oxidation. Chromium is birr of 4 elements found in Chromite. Chromite is one of the major ores that make up the Earths mantle. Chromite is iron magnesium chromium oxide. In some kayoed of date cases, magnesium is embossmentd for iron. uniformwise aluminum and ferric ions evoke substitute chromium in a reaction. Hydro coatlurgy is a spring of extractive metallurgy that utilizes sedimentary resultant alchemy for the recovery of metals from salts, minerals, or ores. root is a process in which metal is removed from an ore by profligacy the metal in a solvent, then recovering the metal from the solution (This is make by dissolving the metal into an acerb or water). To separate certain metals you need to ride into note that some be amphoteric. Amphoterism is the reactivity of a marrow with two acids and beggarlys, acting as an acid in the sc arer of a base and as a base in the presence of an acid. A a couple of(prenominal) amphoteric metals are beryllium, tin, lead, aluminum, and surface. When sedimentary zinc nitrate is reacted with a limited amount of super acid hydrated oxide, insoluble zinc hydroxide forms. 2 [pic] + [pic] [pic] Zn[pic] [Eq.

1] Zinc hydroxide behaves as a base when it reacts with acids to form salts and water. In a solution containing excess [pic] ions, Zn[pic] acts like an acid and dissolves forming the complex ion[pic]. 2 [pic] + Zn[pic] [Zn[pic]][pic] [Eq. 2] Reduction-oxidation, more commonly cognize as REDOX, reactions give when one or more electrons are transferred between reactant species. In these reactions the reactants that are oxidate mislay electrons and the other reactants that gain electrons are reduced. In these reactions one of the reactants is oxidized thus the...If you want to get a full essay, dedicate it on our website: Orderessay

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