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Copper oxide ore and other copper containing minerals are usually stacked into a heap where a strong sulphuric acid leach solution is sprinkled on top of it allowing the acid solution to percolate through the heap of ore The copper oxides become dissolved and the pregant leach solution PLS eventually flows out of the heap into a collection pond
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Publication Publication Date Title CA2833281A1 2024 11 08 A method for recovering indium silver gold and other rare precious and base metals from complex oxide and sulfide ores US2670271A 1954 02 23 Process of recovering metal values from leach liquors US3691038A 1972 09 12 Process for the recovery of zinc from zinc and iron containing
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Sulfation Leaching Treatment Ilmenite Concentrate With suchotary filter the liquortosolids ratio used in the leaching step could be decreased from 101 to 51 the large batch of leached slag was dried in an oven at 150nd sampled for chemical and xray diffraction analyses the liquor from the largescale leach of sulfated pellets exhibitedh of
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Separation of leach residue suspended solids from pregnant liquor solution is an important step in hydrometallurgy flowsheets Alternative flowsheet options are counter current decantation CCD thickeners or counter current washing CCW horizontal belt vacuum filters Extensive sedimentation and vacuum filtration simulations have been completed by FLSmidth on leach discharge slurries to
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The production of pigment grade titanium dioxide involves leaching of ilmenite with acids that also results in the formation of ferrous sulfate/chloride Usually the ferrous salts are spray roasted to regenerate the sulfuric acid/hydrochloric acid for recycling However the quantities of ferrous leach liquor and the capital cost of the regeneration plant dictate the viability of regeneration
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The residue from the first step leach process was made into pellets comprising 50% CFA residue 40% ±212µm coal and 10% CaCO3 The pellets were then sintered at 1150℃ for 180 minutes The pellets were then finely ground to sizes of ±212µm then leached again using the same parameters applied in the first stage leaching process
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This metallic iron is then leached in dilute hydrochloric acid 20% vol and a greenish color leach liquor is obtained The pH of the leach liquor solution is found to be This
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45 The principal difference between regeneration of pickle liquor and ilmenite leach liquor is that a significantly greater volume of liquor has to be processed when ilmenite is leached in commercial quantities than is commonly necessary to the leach plant to produce synthetic rutile reaction A i In a steel plant it would be used for
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Crushing Plant in Mali Therefore to extract germanium and gallium from the ore it is necessary to solubilize the iron compounds Musto Explorations LTD former owner of the mine employed a 3 stage counter current process using sulfuric acid and SO2 to leach approximately 80% of the germanium and 90% of the gallium from the ore Olsen 1989
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suitable process to recover titanium from ilmenite sand Ti IV has been separated effectively from Fe III present in a sulphuric acid leach liquor using solvent extraction stripping and precipitation techniques3 6 The leach liquor was obtained by heating the powdered ilmenite sand in 18 M H2SO4 for long periods usually >48 h Past experience
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Extraction of V V and Cr III from acidic sulfate leach liquors of ilmenite using mol/L Aliquat 336 chloride in kerosene was carried out Different parameters affecting the extraction process such as equilibrium time sulfate concentration Aliquat 336 concentration equilibrium pH and the extraction temperature were investigated
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In the case of ilmenite leach liquors the FBP has the significant advantage that it recovers the iron in a form which realises its maximum value and which has no environmental impact hence the Fluidised Bed Acid Regeneration Process offers the producer of synthetic rutile a well proven economical and environmentally acceptable way to process spent liquor from the leaching of ilmenite with
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Sole et al systematically studied the recovery of titanium from the sulphuric acid leach liquors of titaniferous magnetites by solvent extraction including part 1 review of the literature and aqueous thermodynamics Sole 1999a part 2 laboratory scale studies Sole 1999b and part 3 continuous mini plant trials Sole et al 1999
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After leaching the leach liquor must normally undergo concentration of the metal ions that are to be recovered Additionally undesirable metal ions sometimes require removal [1] Precipitation is the selective removal of a compound of the targeted metal or removal of a major impurity by precipitation of one of its compounds
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roasting iron from antimony ore Know More Age Roasting Plant Iron Ore partyheadquarterscoza chromite ore rosting plant sirptsciencecollege Iron Ore Beneficiation Plant BMM Ispat Hospet Karnataka The data listed produced by roasting chromite ore antimony lead etc which are inimical to treatment whether by ordinary mercuric amalgamation or
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In the case of smaller ilmenite processing plants the regeneration of the acid is not economical and warrants alternate methods of using the ferrous leach liquor The present paper
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leach liquor from ilmenite leach plant leach liquor from ilmenite leach plant With reference to the flow sheet of Figure 1 in a Stage 1 Leach step ilmenite leach liquor containing between 400 and 700 g/1 sulfuric acid from a Stage 2 Leach step and a reductant in the form of scrap iron are supplied to a digester 3 SX pilot plant loaded strip liquor containing 206 g/1 free H
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leach liquor Source OnePetro 13 Date Earlier than January 2024 13 to Go SPE Disciplines Highlight matches Any in SPE Disciplines 5
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leach liquor from ilmenite leach plant 2024 8 23 · leach liquor from ilmenite leach plant leach liquor from ilmenite leach plant With reference to the flow sheet of Figure 1 in a Stage 1 Leach step ilmenite leach liquor containing between 400 and 700 g/1 sulfuric acid from a Stage 2 Leach step and a reductant in the form of scrap iron are supplied to a digester 3 SX pilot plant
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The leach tails comprising undissolved or unreacted ilmenite rutile and gangue is continuously charged to a flotation zone wherein a flotation slurry is effected at a pH in the range of from about 6 to about 8 said pH being maintained by the introduction of an acid or base in an amount necessary to afford the desired range the ilmenite and
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Electrolytic process for treating ilmenite leach solution A method of reducing ferric ions in a sulfuric acid ilmenite leach solution to leach solution of ilmenite containing a plant for concentration and economics of acid leach beneficiation ilmentite Beneficiation of ilmenite a hydrochloric acid leach liquor to
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A sulfate process for producing titania from a titaniferous material is disclosed The process includes leaching the titaniferous material and producing a leach liquor separating titanyl sulfate from leach liquor hydrolysis of the extracted titanyl sulfate and thereafter calcining the solid phase produced in the hydrolysis step
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Leaching of ilmenite ores by acidic chloride 01022013 The leach residue containing mainly rutile and pseudorutile can be treated through the Becher process Farrow et al 1987 and the chlorination process Minkler and Baroch 1981 for further titanium recovery Download Download fullsize image Fig 2 XRD of a ilmenite ore A and residues from leaching with b HCl and c HCl CaCl 2 solutions
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Product liquor from this stage is the principal lixiviant in the other low acid stage although additional spent may be directed to the low acid leach to maintain the overall plant balance In the cocurrent process the first stage low acid leach is run under similar conditions as the first stage leach in the countercurrent flow sheet
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ENGLISHSPANISH process sd precipitación por adición de alumbre o carbón con arcilla a las
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Utilization of Roast Reduced Ilmenite Leach Liquor for Ferrous Chloride Production by Hydrothermal Process S Prasad Manoj Kumar Materials Science Transactions of the Indian Institute of Metals 2024 Ilmenite is the most abundant mineral for the extraction of titanium It contains more than 50% TiO 2 along with iron silica and alumina
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The resulting slurry is pumped into a lamella thickener and the solids are separated from the leach liquor La barbotine obtenue est pompée dans un épaississeur lamellaire et les matières solides sont séparées du jus d attaque Termium liqueur d attaque Termium liqueur lixiviante
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The ilmenite conversion process has been broken down into three general unit operations¬ reduction smelting and leaching—as shown in figures 8 9 and 10 To see what actual flow rates and energy requirements may be expected in a production plant material and energy balance data from the to kg/h pilot plant were scaled to a basis
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We claim 1 A method of reducing ferric ions in a sulfuric acid ilmenite leach solution to ferrous ions comprising circulating a sulfuric acid ilmenite leach catholyte solution containing Ti 4 ions through the cathodic compartment of an electrolysis cell separated by a fluid impervious anion exchange membrane from the anodic compartment circulating a ferrous sulfate anolyte solution
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