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A process for the vapor recovery of vanadium, nickel and / or trace elements from industrial residues
A process for the vapor recovery of vanadium, nickel and / or trace elements from industrial residues
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机译：从工业残留物中蒸气回收钒，镍和/或微量元素的方法
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摘要
The present invention relates to a process for the vapor recovery of vanadium, nickel and / or trace elements from industrial residues (2), comprising the steps of:- the industrial residue (2), in order to form an ammoniacal suspension (6) with an ammoniacal solution are added,- in a first separation step, in particular a first filtering step, the industrial residue (2) and the ammoniacal solution containing ammoniacal suspension (6) is separated,- a in the case of the first separation step separated solid fraction, in particular a filter cake (10), is for the formation of an aqueous suspension (16) of water at a temperature of at least 80°C. are added, so that in the separated solid fraction, in particular in the filter cake (10) is contained vanadium,- in a second separating step, in particular a second filtering step, the aqueous suspension containing the dissolved vanadium (16) is separated, in particular in the case of a temperature of at least 80°C,- a in the case of the second separating step the separated liquid proportion, in particular a formed on the filtrate (18) is cooled, and- a in the case of the cooling crystallized, vanadium containing compound, in particular ammonium metavanadate, is removed from the liquid proportion, in particular the filtrate (18) is removed.n="23"
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