flotation fluorite invention

Evaluation of Sulfonate-Based Collectors with Different …

Figure 1. XRD pattern of powered fluorite. Figure 2. Chemical structures of sulfonate-based collectors. 2.2. Methods 2.2.1. Micro-Flotation Tests The micro-flotation tests were carried out in a laboratory XFG-35 flotation apparatus (Rock Crush & Grand Equipment Co., Ltd., Wuhan, China) with an effective volume of 120 mL at room temperature.

Improving the finely disseminated carbonate-fluorite ore flotation …

The flotation results showed that this synthesized collector could float fluorite very well in a pH range of 8.5–9.5 at the acid number of 120 mgKOH/g and it exhibits excellent collecting ...

Minerals | Free Full-Text | Selective Separation of Fluorite …

Fluorite and scheelite, which are strategic calcium-bearing minerals, have similar active sites (Ca2+); as a result, the efficient separation of the two minerals is still one of the world's most difficult problems in the field of flotation. In this work, N-decanoylsarcosine sodium (SDAA), a non-toxic and low-cost amino acid surfactant, was …

Flotation separation of fluorite from calcite using bis …

Abstract. The efficient separation of fluorite and calcite is a challenging task in the field of mineral processing because of their similar chemical and physical properties. In this research, octylamino- bis - (butanohydroxamic acid) (OBHA) was introduced as collector into a flotation system comprising fluorite and calcite, and the separation ...

Flotation separation of bastnaesite and fluorite using

Flotation collectors used in the recovery of bastnaesite are similar with those used in that of its associated gangue minerals such as fluorite and calcite, which is due to the similar reactivities of rare earth ions in the bastnaesite surface with Ca 2+ ions in the surfaces of fluorite and calcite [8]. It is necessary to develop novel ...

Froth flotation of fluorite: A review

PMID: 33676242. DOI: 10.1016/j.cis.2021.102382. Abstract. Fluorite, as a scarce nonrenewable strategic non-metallic mineral resource, is the primary raw material for …

Investigation of the Flotation Separation of Scheelite from Fluorite …

The recovery of scheelite from calcium-bearing carbonate ores by flotation is challenging due to its low separation efficiency. This study investigated the effect of pentasodium diethylenetriaminepentaacetate (PD) on the surface properties of scheelite and fluorite. For this purpose, we performed micro-flotation tests and carried …

Effect of dissolved fluorite and barite species on the flotation …

The flotation recovery of bastnaesite was significantly affected by dissolved fluorite and barite species. After treatment with fluorite and barite supernatants, the flotation recovery sharply decreased from 62.16% to 8.11% and 24.09%, respectively, at pH 3 and from 90.00% to 9.68% and 39.61%, respectively, at pH 11.

Flotation Separation of Scheelite from Fluorite Using …

The depressing properties of sodium polyacrylate (PA-Na) for scheelite and fluorite were studied by micro-flotation tests, infrared spectroscopy (IR), zeta potentials, X-ray photoelectron spectroscopy (XPS), and density functional theory (DFT). The flotation results reveal that the selective depression effect of PA-Na is better than that of sodium …

Flotation chemistry of the fluorite/oleate system.

Materials Science, Chemistry. 1992. Salt-type minerals flotation is discussed, based mainly on experiments on magnesite, dolomite and calcite. Among the parameters affecting flotation, the following are examined: crystal structure,…. Expand. Semantic Scholar extracted view of "Flotation chemistry of the fluorite/oleate system."

Mechanism of HCA and CEPPA in flotation separation of

The invention of bronze wrote down a glorious page in the history of human civilization, which is called the Bronze Age (Gao et al., 2021, ... The flotation of fluorite was intensively depressed by the depressant HCA whereas the flotation performance of cassiterite was only affected under the conditions of strong acid and strong alkali. The ...

Flotation: Recent innovations in an interesting and …

As an alternative to agitated cells, bubble columns—used in chemical engineering practice as chemical reactors—were proposed for the treatment of fine …

Minerals | Free Full-Text | Evaluation of Sulfonate-Based …

This investigation aims to demonstrate the effects of hydrophobic tails on the affinity and relevant flotation response of sulfonate-based collectors for fluorite. For this purpose, a series of alkyl sulfonates with different hydrophobic tails, namely sodium decanesulfonate (C10), sodium dodecylsulfate (C12), sodium hexadecanesulfonate (C16), and sodium …

CN87105202A

The present invention relates to the method for adjusting agent flotation fluorite ore deposit.The present invention adopts by acid, the intermixture that alkali and synergist are formed is as adjusting agent, adopt oleic acid or rubber enuatrol as collecting agent, technological process is a set composite, carries out the flotation in fluorite ore deposit …

Cold condition fluorite flotation collector

The invention discloses a collector for the floatation of fluorite at a low temperature. The collector comprises the following raw materials in weight portion: 35 to 45 portions of fatty alcohol polyethenoxy ether carboxylic acid sodium, 40 to 50 portions of sodium cetanesulfonate, and 8 to 12 portions of fatty acid methyl ester sodium sulfonate.

Minerals | Free Full-Text | The Contribution of Long-Terms …

The influences of long-term static interaction between flotation reagents and minerals on mineral surface properties and their flotation behaviors were investigated in this work. Single mineral results showed that when the static interaction time between flotation reagents and minerals increased from 0 to 8 days, there were no significant …

The flotation separation of fluorite from calcite using …

The floatability of fluorite and calcite as a function of NaOl dosage at pH 8.0 is shown in Fig. 4.As seen in Fig. 4, flotation recoveries of fluorite and calcite significantly increased with increasing dosage of NaOl and remained constant at high collector concentration.The flotation recovery of both fluorite and calcite was over 90 % using …

Effect of Fluoride Ion on the Separation of Fluorite from

As a common depressant, acidified water glass (AWG) has strong inhibitory effects on fluorite and calcite. The inhibited fluorite is difficult to be recovered, thus resulting in the waste of resources and low flotation efficiency. In this study, the interaction of fluoride ions with fluorite and calcite surfaces was investigated, and its effects of AWG …

An integrated experimental and computational

Oleic acid is a widely utilized collector in fluorite flotation. A novel hydroxamic acid collector, N,9,10-trihydroxyoctadecanamide (THODA), has been developed based on the molecular structure of oleic acid. Compared to oleic acid, THODA exhibits a superior selectivity in the flotation separation of fluorite and calcite.

Fundamentals of froth flotation | ChemTexts

Froth flotation technology has been around for about 150 years. The first true flotation process was described by the Bessel brothers in a patent from 1877 [].Although the brothers Adolph and August co-owned a factory in Dresden, it appears that Adolph (28 September 1835, Wunstorf—12 July 1886, Dresden) was actually the inventor of the process.

(PDF) Froth flotation of fluorite: A review

The present review sheds new light on the deep understanding of fluorite flotation, the future synthesis of reagents as well as their schemes in practical use.

Effect of Calcium Ion on the Flotation of Fluorite and Calcite …

In the flotation of semi-soluble minerals such as calcite and fluorite, Ca2+ is one of the common dissolved components influencing the collector adsorption behaviors on the mineral surfaces. However, there is very limited research focusing on how the dissolved Ca2+ affects the separation of fluorite and calcite. In the study, with sodium oleate …

Intensifying fine-grained fluorite flotation process …

With the depletion of rich fluorite ore, flotation process suitable for fine-grained fluorite is of great necessity. In this study, such method was preliminarily …

Study on synergistic inhibition and mechanism of …

Flotation is the most efficient method to recover this type of fluorite. Fluorite and calcite contain Ca 2+. During flotation, the physical and chemical properties of the …

Carbonate-fluorite flotation separation method

The invention provides a kind of carbonate-cost-effective flotation separation method in fluorite ore deposit, be specially adapted to the FLOTATION SEPARATION in the high fluorite ore deposit of carbonate content.Its key is to select the inhibitor-acidified sodium silicate and the dosing measure of effective carbonate mineral, under the common …

A novel surfactant N-hydroxy-9,10-epoxy group

Oleic acid serves as a conventional collector in fluorite flotation. N-hydroxy-9,10-epoxy group-octadecanamide (N-OH-9,10-O-ODA) is derived from oleic acid by incorporating an epoxy group into the structure of oleic acid and converting the carboxyl group, the polar moiety of oleic acid, into an N-hydroxy amide group. N-OH-9,10-O-ODA …

Fluorite Flotation Process,Fluorite Flotation Separation,

The present invention provides a method of producing low-cost production fluorite floating selection collectors collecting capacity, water-soluble, dispersible, suitable for room temperature and low flotation fluorite. Fluorite flotation adjusting agent composition A flotation of fluorite ore processing method, it is granted a patent ...

Selective Flotation of Calcite from Fluorite: A Novel Reagent …

Fluorite is an important strategic mineral. In general, fluorite ores will contain a certain amount of calcite gangue mineral. Thus, they need to be separated from each other. For an economic separation, a reverse flotation process is used to float calcite gangue from fluorite. However, little information on the separation is available. In this …

PROCESS FOR THE FLOTATION OF FLUORITE

PROCESS FOR THE FLOTATION OF FLUORITE . United States Patent 3623605 . Abstract: Improvement in flotation of calcium fluoride from clay-containing ores which comprises conditioning the flotation slurry with an alkyl phenol ethoxide and a fatty acid ethoxide prior to adding the usual flotation reactants. ... Having thus described our …

Intensifying fine-grained fluorite flotation process with a …

For fluorite ores, fatty acid and sodium silicate are frequently used as a collector and depressant, respectively [19], [20], [21]. Innovations and combinations of various additives comprise a significant share of the advanced investigations in fluorite flotation [22], [23], [24]. In some situations, effective flotation could be realized with ...