Efficient resource utilization of gypsum in the flotation separation …

The objective of this study was to examine the selective depression mechanism of gypsum in the flotation separation of apatite from calcite. The flotation behavior of apatite and calcite before and after the addition of gypsum and the effective components of gypsum in solution were investigated via micro-flotation experiments.

WhatsApp: +86 18221755073

Calcite Flotation in Potassium Oleate/Potassium Dihydrogen Phosphate

The flotation of calcite alone or from phosphate slimes using potassium oleate as a collector and in the presence of ... to tackle this complexity, calcite reverse flotation (calcite depression ...

WhatsApp: +86 18221755073

The role of sodium alginate in the flotation separation of apatite …

Apatite is the valuable mineral in phosphate ores. It is classified as a sparingly soluble salt-type mineral. A common group of minerals found with apatite as gangue are clay, dolomite, quartz and calcite [1, 2]. The flotation of phosphate ores containing siliceous gangue is successful due to the different surface properties of silicates and ...

WhatsApp: +86 18221755073

Beneficiation of Sedimentary Moroccan Phosphate Ores

Results of work aimed at optimizing depression of phosphate oölites during inverse flotation of the carbonate gangue with sodium oleate are reported in Part 4. ... The flotation of calcite and phosphate oölites, using both anionic and cationic collectors, is discussed in the third part. It is shown that selective recovery could be obtained ...

WhatsApp: +86 18221755073

Flotation separation of apatite and calcite using gum arabic as a

The results of single mineral flotation experiments showed that GA performed a considerable selective depression on calcite at pH 7–11, and a concentrate with apatite recovery of 88.84% and P 2 O 5 grade of 26.86% was obtained in the apatite-calcite binary mixed mineral flotation experiment. Therefore, GA can be used as a separate depressant ...

WhatsApp: +86 18221755073

The flotation of apatite and calcite using different reagents: A

most important phosphate mineral and flotation serves as the primary method for separating it from its predominant gangue ... exhibited the selectivity for calcite depression in binary ... to 10% at a concentration of 10 mg/L [32]. El-Mofty et al. (2015) conducted a study on calcite flotation in which recovery was achieved using 5×10-5 M ...

WhatsApp: +86 18221755073

Evaluation of flotation strategies for sedimentary phosphates with

The results show that a single stage for flotation of phosphate or calcite is not enough to obtain high grade concentrates. Among three different processes for carbonate flotation, the results reveal better selectivity when phosphoric acid is used as depressant for phosphate. ... The depression of phosphate in acid media is possibly due to the ...

WhatsApp: +86 18221755073

Investigating the Mechanism of Diethylenetriamine …

DTPMPA was used as a chelating inhibitor to study the flotation, separation, and adsorption behaviors of fluorite and calcite minerals. The microflotation experiment showed …

WhatsApp: +86 18221755073

Investigations of amino trimethylene phosphonic acid as a green …

Guar gum selectively adsorbed on the calcite surface and formed strong Ca-O chemical bond via phosphate group and hydroxide radical, which reduced the number of Ca adsorption sites on the calcite surface and thus hindered the interaction between sodium oleate and calcite surface, realizing the effective flotation separation of smithsonite from ...

WhatsApp: +86 18221755073

Calcite Flotation in Potassium Oleate/Potassium Dihydrogen …

4 on calcite, electrokinetic properties of calcite have been measured in relation to pH and in the absence and presence of KH 2PO 4. Moreover, thermodynamic calcula-tions were used to rationalize the reasons for calcite depression as well as the adsorption mechanism of KH 2-PO 4 onto the calcite surface. Keywords Calcite Flotation Potassium ...

WhatsApp: +86 18221755073

Review of the Main Factors Affecting the Flotation of …

The way to successfully upgrade a phosphate ore is based on the full understanding of its mineralogy, minerals surface properties, minerals distribution and liberation. The conception of a treatment process consists of …

WhatsApp: +86 18221755073

Calcite Flotation in Potassium Oleate/Potassium Dihydrogen …

In this study, potassium oleate and potassium dihydrogen phosphate (KH2PO4) were used as collector and depressant, respectively. Micro-flotation experiments were …

WhatsApp: +86 18221755073

Tripolyphosphate

When STPP was used for the depression of calcite mineral, the grade of WO 3 in the concentrate of scheelite improved from 1.42 to 1.8%, the recovery of scheelite was essentially unchanged, and the calcite recovery dropped by ... Snow R, Zhang P (2002) Surface modification for improved phosphate flotation. J Colloid Interface Sci 256:132–136.

WhatsApp: +86 18221755073

Mechanism of calcium lignosulfonate in apatite and dolomite …

ively depress calcite in scheelite flotation [27–28]. Lignosulfonate is also used as depressant for the flotation of muscovite [29]. Moreover, calcium lignosulfonate also has depressant effect on chalcopyrite [30], talc [31]. Although calcium lignosulfonate has many applications in flotation, its selective depression of dolomite in apatite flota-

WhatsApp: +86 18221755073

New insights into selective depression mechanism of Tamarindus …

Fluorapatite (FAp) is a useful mineral in low-grade phosphate ores, with which gangue minerals consist of two main groups: siliceous minerals, such as clay minerals and quartz, and carbonate minerals, such as dolomite and calcite (Cal) [6], [7].For effective separation of FAp from gangue minerals, phosphate ores are usually treated by heavy media beneficiation, magnetic …

WhatsApp: +86 18221755073

Flotation separation of smithsonite and calcite in sodium oleate …

The main depressants for separating smithsonite and calcite by flotation are inorganic and organic depressants. Inorganic depressants mainly include sodium silicate (Na 2 SiO 3) and sodium hexametaphosphate ((NaPO 3) 6) (Changgen, 1983, Liao et al., 2022).Currently, sodium silicate is the most commonly used inorganic depressant in the industry.

WhatsApp: +86 18221755073

Apatite–Calcite Flotation Separation Using Sodium N

Froth flotation is a commonly utilized beneficiation technique for effectively separating apatite from other gangue minerals, such as calcite. It is difficult to achieve good separation with fatty acid collectors due to their similar interactions with apatite and calcite. In this work, sodium N-lauroyl sarcosinate (SNLS) was used as the collector for the selective …

WhatsApp: +86 18221755073

Review of the reagents used in the direct flotation of phosphate ores

The results showed that the depression effect of sodium alginate is more pronounced on the calcite flotation using oleate collector, without affecting the flotation performance of fluorapatite. In the anionic flotation of natural iron ore (Bai et al. 2019 ), the use of soluble starch as depressant for hematite in apatite flotation exerts the ...

WhatsApp: +86 18221755073

Review of the Main Factors Affecting the Flotation of Phosphate …

In that sense, the relevant parameters of phosphate ores flotation are discussed while focusing on apatite, calcite, dolomite, and quartz as main constituent minerals. Leading phosphate producers ...

WhatsApp: +86 18221755073

Role ofDissolved Mineral Species in Calcite-Apatite Flotation

enologically related to flotation depression below pH 13.0. Fig. 7- Effect ofK2C03 addition on oleate flotation of calcite Apatite Flotation The pH dependence of apatite flotation at 2 X 10- 6 kmol/rnf potassium oleate is shown in Fig 8. The level of oleate in this case is almost two orders of magnitude lower

WhatsApp: +86 18221755073

Advancing phosphate ore minerals separation with sustainable flotation

As semi soluble salts minerals (included in non-sulphide ores), phosphate rock is the principal natural resource exploited in the mining industry for the extraction of phosphorus [4, 6].It is predominantly composed of apatite, which constitutes the valuable fraction, as well as carbonates (calcite, dolomite), silicates (clays and quartz) and other minerals, which are …

WhatsApp: +86 18221755073

The flotation of apatite and calcite using different reagents: A

most important phosphate mineral and flotation serves as the primary method for separating it from its predominant gangue mineral, calcite (CaCO 3). In this study, the direct flotation of …

WhatsApp: +86 18221755073

Depression mechanism of novel organic phosphoryl depressants …

The obtained flotation results demonstrated the successful depression of calcite by all three reagents, with DTPMPA exhibiting the most pronounced depressing effect. Moreover, …

WhatsApp: +86 18221755073

Assessment of the selective flotation of calcite, apatite and quartz

Moreover, collectors' adsorption on the surface of quartz was minimal. Accordingly, flaxseed's soap, served as an efficient calcite collector in phosphate flotation while including phosphoric acid for apatite depression. It enabled the recovery of …

WhatsApp: +86 18221755073

Advancing phosphate ore minerals separation with sustainable flotation

To achieve this, phosphate froth flotation has been applied since the early 20th century, which can be performed through direct or reverse flotation methods. The first approach consists in the impurities' depression and the apatite recovery, whereas the reverse flotation involves the apatite depression and the gangue flotation [8].

WhatsApp: +86 18221755073

Effect of depressants in the selective flotation of smithsonite and

Abstract: In order to selectively separate smithsonite and calcite using potassium lauryl phosphate as collector and reveal the depression mechanism, the approaches of micro-flotation and zeta potential measurements were adopted. The effects of sodium hexametaphosphate (SHMP), water glass (WG), carboxymethyl cellulose (CMC) and …

WhatsApp: +86 18221755073

Efficient resource utilization of gypsum in the flotation separation …

The results showed that gypsum can be used as a selective inorganic depressant of calcite and for flotation separation of apatite from calcite, which provides a new method for the …

WhatsApp: +86 18221755073

Beneficiation of phosphatic ores through flotation: Review of

It is also possible to achieve a selective flotation of carbonate and siliceous gangue elements by operating successively, by means of a collector of ester phosphoric type (alkylphosphates in C8--C20) (Table XVIII): (a) a phosphate + carbonate bulk flotation, silica remaining at cell bottom; TABLE XVII Flotation with an amphoteric reagent ...

WhatsApp: +86 18221755073

Efficient flotation separation approach of apatite from calcite for

The PS was then evaluated for its ability to depress apatite, enhancing the separation efficiency of apatite from calcite in phosphate rock beneficiation via reverse flotation. Micro-flotation experiments revealed PS's distinct depression effect on apatite while minimally impacting calcite.

WhatsApp: +86 18221755073

Role of calcium ions and their interaction with depressants in

The flotation of calcite alone or from phosphate slimes using potassium oleate as a collector and in the presence of potassium dihydrogen phosphate (KH 2 PO 4) as a phosphate …

WhatsApp: +86 18221755073