The flotation results showed that LS exerted high selectivity for hemimorphite, and flotation separation of hemimorphite from quartz was achieved at an LS concentration of 3.4 × 10 −4 mol/L and a pulp pH of 7. In contrast to sodium oleate (NaOL), LS exhibited a higher Gaudin's selectivity index (SI) of 67.58 under the optimal conditions ...
Flotation is a widely used separation technique in mineral processing, which plays a critical role in the efficient recovery of valuable minerals from ore. By exploiting the differences in surface properties of minerals, flotation allows the selective separation of hydrophobic materials from hydrophilic materials.
Froth flotation is a highly effective technique for mineral separation, which involves the addition of collectors to promote hydrophobic interactions between minerals and collectors, thereby improving the efficiency of mineral separation [8], [9], [10]. Xanthates are the major collectors utilized for the recovery of chalcopyrite owing to their ...
Application of a novel ionic liquid as flotation reagent in the flotation separation of quartz and magnesite has been investigated. The flotation behavior and surface properties of quartz and magnesite flotation with dodecyl trimethyl ammonium-diethylphosphonic acid (N12111-DEPA) as flotation reagent were studied by microbubble flotation …
However, the flotation separation of rutile and chlorite has yet to be thoroughly studied. In this study, carboxymethyl cellulose (CMC) was used to depress chlorite when sodium oleate (NaOL) was used as the collector of rutile. The selective depression and its mechanism were investigated through micro-flotation experiments, …
In this paper, the modified ATC was environmentally synthesized by CT-2 as catalyst, named O-methylisobutyl-N-allyl thionocarbamate (MIBATC) for the flotation separation of chalcopyrite, pyrite and sphalerite. Similar to the above, it belongs to C6 ATC, whereas with the side chains for improving the selectivity.
Recently, the development of mixed anionic/cationic collectors in the flotation separation of lithium-containing ores has become a research focus [28], [29].The synergistic effect of mixed anionic/cationic collectors can improve the floatability of target minerals [30], [31], [32], and the flotation separation of lepidolite and quartz could be realized at neutral …
However, to the best of our knowledge, the application of trisiloxane surfactants in the flotation separation of wolframite from calcite has not been discussed, hence it is worth noting whether AATS is better than the common flotation collector. In this paper, a novel type of trisiloxane surfactant-N-(2-aminoethyl)-3-aminopropyltrisiloxane ...
Furthermore, the results of the flotation separation test using the pre-treated BM under optimal conditions demonstrated a recovery rate exceeding 85 % and a grade surpassing 95 % for both active materials, representing the best-reported values known to date. Further research, such as evaluating the electrochemical properties of …
Flotation is a separation technique that uses bubbles to float hydrophobic particles in a liquid medium. It is widely used for mineral, coal, wastepaper, and water treatment …
In this paper, a new collector, named O-isobutyl-N-allyl thionocarbamate (IBATC), was synthesized, and the structure was characterized by Fourier Transform Infrared Spectrometer (FTIR) and 1 H NMR, 13 C NMR analysis. The collection performance of IBATC was evaluated by flotation tests and interaction mechanism was …
Flotation separation of plastic mixtures was conducted based the flotability modulated by wetting agents. The multicomponent plastic mixtures can be efficiently separated through multi-stage flotation using TA and LS as wetting agents, and the purity of separated component was above 94%, and the recovery was more than 93%. ...
Fig. 4 (a) illustrates the impact of using POCA as a galena depressant in chalcopyrite-galena flotation separation system under a pH value of 9 and 10 mg/L SBX. In the absence of POCA, both chalcopyrite and galena exhibit significant xanthate-induced floatability. As the POCA concentration increased from 0 to 50 mg/L, the galena …
Due to the similar physical and chemical properties of ilmenite and olivine, separating them is challenging. The flotation process, with the use of collectors, is an …
This study suggests that in flotation systems of minerals with anisotropy, depressants should be selected with respect to the mechanism by which collectors act on minerals, which will provide a broader idea and a richer theoretical basis for the selection of effective depressants in the flotation separation of minerals with anisotropy.
The difficulties of their flotation separation are: (1) as aforementioned, the nature of pyrrhotite varies, resulting in the significant discrepancies in its magnetism and floatability; (2) pyrrhotite is easy to argillization and oxidization, and after argillization pyrrhotite will cover over on chalcopyrite surface which hinders xanthate ...
The flotation of artificially mixed minerals confirmed that the effective separation of bastnӓsite from calcite could be realized in the presence of DDHA. The zeta potentials of mineral surfaces with or without these collectors were measured, and the results indicated that DDHA strongly interacted with the bastnӓsite surface but was not ...
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. …
While only flotation could separation the quartz from PG, which is based on the physicochemical property differences of the mineral surface. Although there are few studies about flotation separation of quartz from gypsum, there are a large number of studies about the cationic collectors for quartz including dodecylamine (DDA) [21], …
Dolomite, a prominent calcium-bearing gangue mineral found in carbonate-type zinc oxide ores, poses a significant challenge for effective flotation separation alongside smithsonite due to their highly …
Flotation separation of calcium-bearing minerals is a challenge in the mineral processing. To achieve clean and efficient flotation separation of apatite and calcite, gum arabic (GA), a kind of non-toxic, environmentally friendly and readily available natural gum, was used as a depressant of calcite in the apatite flotation. ...
Recently, the development of mixed anionic/cationic collectors in the flotation separation of lithium-containing ores has become a research focus [28], [29].The synergistic effect …
1. Introduction. Copper (Cu) is a significant metal for the society development and scientific progress, and chalcopyrite is one of the main sources [1].Therefore, the efficient separation and enrichment of chalcopyrite appear to be particularly important, especially the flotation separation of chalcopyrite from sphalerite [2].The traditional chalcopyrite collectors, …
To effectively separte pyrite from chalcopyrite, tetrazine thione group and hydrocarbon chain were combined to synthesize tetrazine thione collectors. The flotation performance of tetrazine thione collectors on chalcopyrite and pyrite was investigated, and the influence of different hydrophobic groups on the flotation performance was …
The flotation separation test of the pyrite-arsenopyrite artificial mixed minerals was conducted using the combined depressants. Fig. 5 depicts that a pyrite concentrate, with a grade of 49.85 wt.% S and 3.84 wt.% As and a recovery of 50.73 % S and12.11 % As was obtained. In contrast, the obtained arsenopyrite contained 41.19 …
As opposed to settling, flotation is a solid–liquid separation technique that is applied to particles whose density is lower or has been made lower than the liquid they …
In this work, selective flotation separation of microfine apatite and chlorite was achieved by using sodium oleate (NaOL) as a collector with a low dosage of acidified sodium silicate (ASS) as a …
The purpose of flotation separation can be achieved by using the differences in the dissolution of different minerals. Eventually, according to the analysis above, we have drawn a possible model illustration, including the flotation separation results of artificially mixed ore, as shown in Fig. 7. Under optimal flotation conditions, NaOL and ...
1 Froth Flotation – Fundamental Principles. Froth flotation is a highly versatile method for physically separating particles based on differences in the ability of air bubbles to …
Flotation separation of plastics utilizing selective wetting characteristics in order to change the surface of specific plastics from hydrophobic to hydrophilic. Shibata et al. (1996) separated PVC, PC, POM and PPE through a three-step process.
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