Flotation of copper oxide minerals: A review
Abstract. Copper oxide minerals are important copper resources, which include malachite, azurite, chrysocolla, cuprite, etc. Flotation is the most widely used method for the enrichment of copper oxide minerals in the mineral processing industry. In this paper, the surface properties of copper oxide minerals and their effects on the …
Solvent extraction of Cu, Mo, V, and U from leach solutions of copper
The Uranium ore treatment plant at Jaduguda, India, recovers copper, nickel and molybdenum as byproducts before the bulk flotation tailings are subjected to leaching to recover uranium values.
Solvent extraction of Cu, Mo, V, and U from leach solutions of copper
Flotation tailings from copper production are deposits of copper and other valuable metals, such as Mo, V and U. New hydrometallurgical technologies are more economical and open up new possibilities for metal recovery. This work presents results of the study on the extraction of copper by mixed extractant consisting p-toluidine …
US4070276A
A process and flotation agents are provided for flotation of lead-, uranium-, and rare earth-type minerals and ores in which an aqueous pulp of the mineral or ore is subjected to a froth flotation, characterized in that the flotation is performed in the presence of a tertiary amine flotation agent having the general formula: ##STR1## wherein: R is a aliphatic …
Flotation process of lead-, copper-, uranium- and rare earth …
@article{osti_5193633, title = {Flotation process of lead-, copper-, uranium- and rare earth minerals}, author = {Broman, P G and Kihlstedt, P G and Du Rietz, C D}, abstractNote = {A process and flotation agents are provided for flotation of lead-, uranium-, and rare earth-type minerals and ores in which an aqueous pulp of the mineral or ore is subjected to a …
A Review of the Flotation of Copper Minerals
economic to acid heap leach the stockpile. The recovery of these copper minerals by flotation or. hydrometallurgy from ores, typically containing 0.5%TCu (open pit mines) and 1-2%TCu (underground ...
URANIUM-COPPER MINERALOGICAL …
ABSTRACT. This study investigates the mode of occurrence of uranium in a copper concentrate from the Prominent Hill mine. Mineralogical and liberation studies of a high …
Producing Copper Nature's Way: Bioleaching
Bioleaching is used today in commercial operations to process ores of copper, nickel, cobalt, zinc and uranium, whereas, biooxidation is used in gold processing and coal desulfurization. ... However, once bioleaching gained acceptance as a potentially viable method for the recovery of metals from low-grade ores, flotation tailings and waste ...
Minerals | Free Full-Text | Flotation of Copper Ores with …
Porphyry copper deposits are important sources of copper and typically processed by flotation to produce copper concentrates. As mining areas become deeper, the amounts of impurities, such as sphalerite, can be increased in copper ores, so the appropriate depression of sphalerite floatability should be achieved to obtain saleable copper …
Laboratory Flotation Characterisation of a Uranium …
low (less than 50 ppm U) compared to the copper ores, indicating uranium recovery is linked to copper sulphides recovery. Of the copper ores, concentrates of RGY1 are highly enriched in uranium, quite remarkably in the -20µm range in concentrate 2 (200 ppm U). …
(PDF) Evaluation of sodium isobutyl xanthate as a collector in …
Froth flotation of copper-zinc-lead ores is a complex process based on similar metallurgy processing and strong interactions between chalcopyrite and sphalerite. These types of ores represent 15% of the world production and 7.5% of copper deposits all over the world. ... nickel sulphate, uranium and phosphates. The carbonatite complex is the ...
Laboratory flotation characterisation of a uranium …
Almost similar trend is copper ores compared to the gold ores (RY1 and SYW1) observed in other copper ores although uranium levels are which are marginally low, indicating …
Beneficiation of flotation tailing from Polish copper sulfide ores …
@article{osti_248206, title = {Beneficiation of flotation tailing from Polish copper sulfide ores}, author = {Luszczkiewicz, A and Sztaba, K S}, abstractNote = {Flotation tailing of Polish copper sulfide ores represents more than 90% of the mass of run-of-mine ore. The tailing contains mainly quartz, dolomite, clay minerals, traces of …
Challenges and opportunities in the …
This study showed that uranium is floated with oleic acid, cresylic acid or other chelating agents which was further confirmed with recent work on Elliot Lake …
Laboratory flotation characterisation of a uranium-bearing copper ore
This can be ascribed to the intrinsic association with copper bearing sulphides (poor liberation). No naturally hydrophobic minerals such as talc, kerogen, etc were identified in the ore mineralogy to trigger any other flotation mechanisms of uranium. Entrainment appeared significant particularly in soft and lower grade ores.
Possibility of uranium and rare metal recovery in the Polish copper …
The Polish copper deposits in the Lubin-Sieroszowice region contain ca. 60 ppm uranium in the ore, while the copper concentration is 2%. Even though not all of these resources are available, the possibility of uranium recovery encourages other metal extraction by leaching from waste streams. 2. Material and methods.
TWO-STAGE FLOTATION TREATMENT OF URANIUM ORE FROM FARADAY URANIUM …
On ore ground in the Faraday mill grinding circuit, and using Faraday mill water in the flotation step, a recovery in the flotation concentrate of from 91 to 93% of the uranium was obtained in 45 to 50% of the weight at a grade of 0.24% U/sub 3/C/sub 8/.
23.3: Hydrometallurgy
If there are no other economic elements within the ore a mine might choose to extract the uranium using a leaching agent, usually a low molar sulfuric acid. Similar to copper oxide heap leaching, also using dilute sulfuric acid. The final product is yellowcake ((U_3O_8)) and requires significant further processing to produce fuel-grade feed.
(PDF) Investigation of flotation parameters for copper recovery …
Potassium ethyl xanthate has been reported to have enhanced hydrophobicity and promotion of bubbles in the flotation of low-grade copper ore [10, 22]. It has been reported that the total loss of ...
Possibility of uranium and rare metal recovery in the …
The uranium and other deficit metals recovery from copper flotation tailings and other copper mine waste materials. •. The decreasing of enhanced hazardous …
Studies of leaching of copper ores and flotation wastes
In the Institute of Nuclear Chemistry and Technology study on uranium leaching from copper ores and tailings were carried out. In Poland, there are huge …
Review of processing and future demand of …
In this paper, processing of uranium ores is discussed, namely, beneficiation by radiometric sorting, gravity and magnetic separation methods, flotation and leaching.
FLOTATION OF URANIUM ORES FROM THE ELLIOT LAKE …
First the acid-consumers and then the uranium minerals were floated. On ore ground in the Faraday mill grinding circuit, and using Faraday mill water in the flotation step, a recovery in the flotation concentrate of from 91 to 93% of the uranium was obtained in 45 to 50% of the weight at a grade of 0.24% U/sub 3/C/sub 8/.
Copper Ore
Copper ore usually contains about 0.5 to 2% copper that occurs in the form of disseminated and stringers. The run of mine ore is reduced from 150 mm to 25 mm size in Jaw and Cone crushers. The crushed ore is grinded in ball mills to −74 μm size. The ore is processed by froth flotation comprising rougher and scavenger cells.
Flotation | Mineral Processing, Separation & Beneficiation
particle separation. flotation, in mineral processing, method used to separate and concentrate ores by altering their surfaces to a hydrophobic or hydrophilic condition—that is, the surfaces are either repelled or attracted by water. The flotation process was developed on a commercial scale early in the 20th century to remove very fine ...
The flotation of gold, uranium, and pyrite from …
The uranium in the reefs is present at about 0,02 per cent on average, but there have been problems in the development of a flotation technique that will give a uranium concentrate because (i) much of the uranium is present as uraninite, which is inherently difficult to float; (ii) the uraninite tends to be very finely ground during
Laboratory Flotation Characterisation of a Uranium …
Interestingly, uranium is fine grained, concentrating highly in the -8μm range in all samples studied, averaging more than 73 ppm U. In the coarser range, U is less concentrated, 41 ppm in +8-38μm and 38 ppm in the +38μm size range. The distribution of uranium relative to copper is provided in Table 3.
Flotation of a Copper‐Zinc Ore Using p‐Nonylcupferron as …
Bench-scale flotation tests were done with a chalcopyrite, sphalerite and pyrite-containing ore from Timmins, Canada using p-nonylcupferron as collector. Effects of pH and the need for adding copper sulphate for zinc activation and lime as pyrite-depressant were studied. The collector floated nearly 94% copper and 94% zinc without …
The flotation of gold bearing ores — A review
Abstract. The practice of the flotation of pure gold and gold-bearing ores such as tellurides, aurostibite, kerogen, pyrite, pyrrhotite, copper-gold ores and mixed sulphides is reviewed. The factors which influence the choice of collectors, pH and Eh, are discussed as well as the application of differential flotation.
Preconcentration of Primary Uranium Ores by …
Preconcentration of Primary Uranium Ores by Flotation by Burt C. Mariacher E XTRACTION of uranium from ores is being ac- complished by processes which, for the most part, subject the entire ore to acid or carbonate leaching. Ore deposits with a U,O, content below 0.10 pct U,O, are seldom considered suitable for treatment by leaching.
