b. mishra in encyclopedia of materials: science and technology 2001. 2.4 hydrometallurgy of laterite ores. two hydrometallurgical processes for the recovery of nickel from oxide ores have been commercialized: the reduction roast–ammonium carbonate leach process and the sulfuric acid pressure leach process for the treatment of low magnesia content laterite ores.
a hydrometallurgical process for the dephosphorization of iron ore. hydrometauurgy 21: 277-292. a process is proposed for the dephosphorization of iron ore. the process consists of an inte- grated treatment for the removal of the phosphorus from the ore by leaching and further process- ing of the leach solution.
this invention relates to a hydrometallurgical process for extracting platinum group metals (pgms) gold silver and base metals from a flotation concentrate (10) containing sulphide minerals such as pentlandite and chalcopyrite along with pyrite and pyrrhotite. the process includes a modified pressure oxidation step (12) to selectively separate base metals into sulphate medium (14) from the
a hydrometallurgical process for pollution-free recovery of metallic copper from chalcopyrite and other copper-containing materials by (a) ferric chloride oxidation thereof to produce cupric chloride (b) reduction of the cupric chloride to cuprous chloride (c) recovery of metallic copper preferably by electrlysis and (d) regeneration of the ferric chloride by oxidation with concurrent
hydrometallurgy is a method for obtaining metals from their ores. it is a technique within the field of extractive metallurgy involving the use of aqueous chemistry for the recovery of metals from ores concentrates and recycled or residual materials. metal chemical processing techniques that complement hydrometallurgy are
ca953924a ca105999a ca105999a ca953924a ca 953924 a ca953924 a ca 953924a ca 105999 a ca105999 a ca 105999a ca 953924 a ca953924 a ca 953924a authority ca canada prior art keywords copper sulphur extraction hydrometallurgical process iron sulphides prior art date 1971-02-19 legal status (the legal status is an assumption and is not a legal conclusion.