A flotation process for recovering feldspar from a feldspar containing feed material, comprising the following steps: (1 ) forming an aqueous suspension of a feldspar containing feed material, in the absence of hydrofluoric acid, wherein the suspension comprises from 0.004 to 0.3 %wt. of a flotation reagent comprising: (a) one or more amines, containing …

This paper reviews the beneficiation technology and mechanism of feldspar proposed in the literature to identify the important parameters. This review indicates that crystal structure, monovalent salts, flotation reagents, and particle size distribution are …

@article{Yu2023RemovalOD, title={Removal of dolomite and potassium feldspar from apatite using simultaneous flotation with a mixed cationic-anionic collector}, author={Haoyong Yu and Yangge Zhu and LiangZe Lu and Xiaoxing Hu and Songqing Li}, journal={International Journal of Mining Science and Technology}, year={2023}, …

The flotation test results show that Fe3+ can significantly improve the flotation behavior of minerals when NaOL is used as a collector under natural pH, and the highest recovery rates of feldspar ...

Although flotation can effectively treat apatite containing silicon and calcium impurities, the different surface properties of dolomite and potassium feldspar result in different affinities toward the reagents. Therefore, it is necessary to separate dolomite and potassium feldspar in stages with appropriate collectors [10]. A fatty-acid ...

Abstract. This paper reviews the application of flotation for the separation of feldspar from the other minerals with which it naturally occurs (such as quartz, clay minerals, mica, ilmenite, rutile, anatase and magnetite) as well as the separation of the individual feldspar minerals themselves. Much of the published information on feldspar ...

The results of the flotation tests show that feldspar and quartz without SF treatment have good floatability. After SF treatment, feldspar still has good floatability, …

Abstract and Figures. In this study, the effects of ultrasound on removal of impurities from raw feldspar were investigated by testing with a newly developed flotation cell with various frequency ...

Froth flotation is the selected method for the separation of quartz and feldspar. In the conventional process, feldspar is floated from quartz by using hydrofluoric acid (HF) as activator for the feldspar and a cationic collector (amine) at pH 2–3 (O'Meara, 1939). (1979) reported that HF creates a large difference in the minerals ...

It is suitable for dry separation of weakly magnetic minerals, and has become the main magnetic separation equipment for dry iron removal from feldspar in recent years. Particle size lower limit of 0.12mm, good separation effect, low operation cost, and convenient operation. Permanent magnetic drum type high-intensity magnetic separator.

Flotation of Feldspar, Spodumene, Quartz and Mica from Pegmatites ... EN English Deutsch Français Español Português Italiano Român Nederlands Latina Dansk Svenska Norsk Magyar Bahasa Indonesia Türkçe Suomi Latvian Lithuanian český русский български العربية Unknown

The Hallimond flotation, zeta-potential and diffuse reflectance FTIR studies using pure microcline and quartz minerals have been carried out. In this paper, the results of these investigations are discussed and the role of mixed collectors in selective feldspar flotation is delineated. 2. Experimental2.1. Materials

Flotation tests show that the amine concentration ought to be kept lower than 1.47 × 10 −5 mol/l (≈5 ppm) to prevent feldspar loss during metal-oxides flotation stage and hence dewatering/washing operation after mica flotation seems to be a crucial step. Feldspar recovery in the concentrate, being 86.67% without dewatering/washing ...

Much of the published information on feldspar flotation relates to fundamental studies seeking to elucidate the mechanism of the separation and recovery of feldspar with anionic or cationic collectors and activators. However, the separation schemes currently being used industrially are largely the same as those first proposed 60 …

Our flotation cell, which has a volume of 600 cm 3, is built of borosilicate glass, holds up to 90 g of sample, and achieves quartz and feldspar separation in ≤2 h for very feldspar-rich samples. We trace the stepwise enrichment of quartz to 95- purity with our procedure by X-ray diffraction analysis.

This paper reviews the application of flotation for the separation of feldspar from the other minerals with which it naturally occurs (such as quartz, clay minerals, mica, ilmenite, rutile, anatase and magnetite) as well as the separation of the individual feldspar minerals themselves. Much of the published information on feldspar flotation relates to …

A test on the +250 µm fraction, which was firstly ground then deslimed at 50 µm before mica and feldspar flotation stages, produced a quartz product assaying 99.5 wt% SiO 2 and only 0.3 wt% Al 2 ...

The flotation responses of quartz and feldspar with alkylsulfonates' collectors in the presence of some alkaline earth metals were studied. The activation mechanism in these systems is discussed in terms of hemimicellization and surface precipitation of neutral component of cation-sulfonate complex, e.g. Ca(OH)RSO 3.. …

A separation process is provided for treating a feed material comprising silica, feldspar, and metal impurities, including at least one of mica, iron impurities, or refractory heavy minerals, to form one or more products for use in making glass. In the process, the feed material is floated in the presence of a depressant to inhibit the flotation of feldspar and …

It is notable that the differences in flotation recoveries are 63.74% and 53.92% at molar ratios of 6:1 and 8:1, respectively, showing a tendency of diminution with increasing BHA:DDA molar ratio. The flotation recoveries of spodumene and feldspar are 88.31% and 24.57% at pH 8–9, respectively, at BHA:DDA molar ratio of 6:1.

Flotation experiments performed on a quartz-feldspar mixture demonstrate that quartz can be floated selectively from feldspars in diluted solutions of hydrofluoric …

1. Introduction. Froth flotation is the selected method for the separation of quartz and feldspar. In the conventional process, feldspar is floated from quartz by using hydrofluoric acid (HF) as activator for the feldspar and a cationic collector (amine) at pH 2–3 (O'Meara, 1939). (1979) reported that HF creates a large difference in the …

An improved method for producing high-purity quartz (Qtz) and potassium feldspar (Kfs) concentrates was developed using various chemical reagents. Froth flotation experiments on a Qtz–Kfs mixture showed that quartz could be selectively floated from Kfs in diluted hydrofluoric acid (HF) using a frother. Similarly, feldspar could be …

The Bushveld Complex of South Africa contains almost 90% of the world's reserves of platinum group minerals (PGMs). In the flotation of PGMs, there are significant challenges arising from the need to treat ever-decreasing grades of the relevant ore deposits. The major challenge in the flotation of these ore bodies is the control and …

Feldspar is a common occurrence in spodumene ores, and has applications in glass making. K-feldspar is a key component in the manufacturing of ceramic materials. Froth flotation is the main method used for the recovery of feldspar from lithium ores because its flotation properties are well understood (Fuerstenau and Pradip, 2005). …

The study also indicates that the use of anionic collector sulfonate alone has a negligible effect on the feldspar flotation due to non-adsorption of the collector on the mineral surface as is evident from the infrared spectra data. ... hydrothermally synthesised the zeolite A, from K-feldspar by treating the ore (of − 75 μm) ...

DOI: 10.1016/J.CES.2017.02.013 Corpus ID: 100064906; Adsorption mechanism of new mixed anionic/cationic collectors in a spodumene-feldspar flotation system @article{Tian2017AdsorptionMO, title={Adsorption mechanism of new mixed anionic/cationic collectors in a spodumene-feldspar flotation system}, author={Jia Tian …

Physical processing of feldspar slime has low flotation efficiency and high particle entrainment. In a preliminary work, the authors purified the feldspar slime by the combined physical beneficiation, resulting in the concentrates with a mass recovery of 58.0% and a grade of 0.21% Fe 2 O 3.

The micro-flotation tests showed that the negative effect of feldspar slime on spodumene flotation could be reduced by using the mixed NaOL/DDA collector with mole ratio of 9/1. The scanning electron microscopic images and the adsorption test results indicated that the decrease of spodumene recovery was attributed to collector …

Froth flotation experiments on a Qtz–Kfs mixture showed that quartz could be selectively floated from Kfs in diluted hydrofluoric acid (HF) using a frother. Similarly, …