+86 0371 8654 9132

separation of apatite and dolomite by flotation zhong

Improving flotation separation of apatite from dolomite ...

Sep 01, 2020 · To explore the impact of PAMS on the flotation separation of apatite from dolomite, the flotation experiments on mixed apatite and dolomite minerals as feed were performed at pH 9.00, and the results are presented in Table 1. It is worth noting that the mass ratio of apatite and dolomite was 1:1 and the grade of P 2 O 5 was 20.36% in initial feed.

The role of sodium alginate in the flotation separation of ...

The flotation results show that SA can completely depress dolomite with a slight effect on apatite flotation in pH 8–11. The contact angle tests and adsorption tests indicate that depressant SA absorbed onto both apatite and dolomite surfaces and the adsorption intensity of

Flotation Separation of Apatite From Dolomite Using ...

高达10%返现 · Conventional flotation scheme is not successful for separation of dolomite from its mixture with apatite. Several processing methods utilizing both anionic and cationic collectors have been proposed to solve this problem, but they have yet to be tested on a commercial scale.

Flotation of Dolomite from Apatite

Jun 29, 2018 · apatite from dolomite. For these reasons, to separate apatite from dolomite effectively, research has focused on developing selective flotation agent. As known, fatty acids are most widely used collectors in the flotation of apatite and dolomite, and the development of novel flotation collectors has been an area of research interest.

The role of sodium alginate in the flotation separation of ...

Aug 01, 2020 · SA exhibited a selective depressive effect on dolomite in apatite flotation. The flotation separation of apatite from dolomite can be achieved under the reagent system of adding 20 mg/L SA followed by 1*10 −4 mol/L NaOl in pH 8–11. The contact angle tests and adsorption tests indicate that depressant SA absorbed onto both apatite and ...

Improving flotation separation of apatite from dolomite ...

Sep 01, 2020 · Froth flotation is widely used as an effective method for separating apatite from dolomite. However, it is of difficulty to realize the efficient separation of apatite and dolomite

Improving flotation separation of apatite from dolomite ...

Sep 01, 2020 · Froth flotation is widely used as an effective method for separating apatite from dolomite. However, it is of difficulty to realize the efficient separation of apatite and dolomite

SEPARATION OF DOLOMITE FROM THE SOUTH FLORIDA

Dec 02, 2014 · Kinetics of Apatite-Dolomite Flotation: It has been reported in the past that separation of apatite and dolomite might be achieved because of differences in their rates of flotation. A systematic study of the flotation kinetics of apatite and dolomite indicated that the rate of flotation

Selective flotation of dolomite from apatite using sodium ...

separation of dolomite from apatite by selective flotation. Flotation behavior of single and mt tests in the pH range of 7 to 11, was not observed in mixed mineral systems. To understand the loss of selectivity in the mixed minerals, electrokinetic, oleate adsorption and solubility studies were conducted. The loss of

Effect of geological origin of apatite on reverse ...

Micro-flotation tests for dolomite and apatite with different geological origins were carried out using an XFG-Ⅱ flotation machine with a stirring speed of 1700 rpm. The mineral suspension was prepared by adding 3.0 g of apatite (or dolomite) to 40 mL of deionized water in the micro-flotation cell.

Dolomite-apatite separation by amphoteric collector in ...

Jun 07, 2013 · Bioflotation represents one of the growing trends to enhance the selectivity of conventional flotation processes. It utilizes the micro-organisms to replace or to interact with the chemical reagents to increase the gap between surface properties of similar minerals and to enhance the separation selectivity. In this work, dolomite-phosphate separation was investigated using

A Review of Flotation Separation of Mg Carbonates ...

Zhou et al. reported that in the flotation separation of apatite from dolomite using conventional air bubble in the presence of the collector (Fatty acids), the contact angles of apatite and dolomite were 72.5° and 67.0°, respectively. However, when oil bubbles were used instead of air bubbles, the contact angles for apatite and dolomite were ...

A Review of Flotation Separation of Mg Carbonates ...

minerals Review A Review of Flotation Separation of Mg Carbonates (Dolomite and Magnesite) Darius G. Wonyen 1,†, Varney Kromah 1,†, Borbor Gibson 1,† ID, Solomon Nah 1,† and Saeed Chehreh Chelgani 1,2,* ID 1 Department of Geology and Mining Engineering, Faculty of Engineering, University of Liberia, P.O. Box 9020 Monrovia, Liberia; [email protected] (D.G.W.);

Effect and mechanism of dolomite with different size ...

Mar 30, 2016 · LIU A, NI W, WU W. Mechanism of separating pyrite and dolomite by flotation [J]. Journal of University of Science and Technology Beijing: Mineral, Metallurgy, Material, 2007, 14(4): 291–296. Article Google Scholar [26] FENG Yin. Study on direct flotation separation between apatite and dolomite [D]. Changsha: Central South University, 2011.

Simultaneous separation of quartz and dolomite from ...

The separation of magnesite from dolomite was studied by flotation tests, X-ray photoelectron spectroscopy (XPS), and zeta potential measurements in the presence of calcium ion (Ca²⁺) dissolved ...

Fatty acid separation of siliceous carbonate phosphates

an apatite depressant, was modified to benepciate a high- MgO siliceous phosphate matrix from south Florida. The modified process includes two flotation stages, one for car- bonate removal and the otherforphosphate recovery from the siliceous gangue. The selective flotation separation of the

Effect of Hydrochloric Acid on Leaching Behavior of ...

properties of calcite and apatite as well as the ionic reactions in the liquid phase. It looks like that a CaO:P2O5 ratio in the flotation product must be less than 1.6 [14]. Calcite and dolomite, both of these carbonate minerals tend to respond in a similar manner to phosphate minerals when exposed to the fatty acid-type collectors

Minerals Engineering International Online - Commodities ...

Chunhui Zhong, Bo Feng, Wenpu Zhang, Liangzhu Zhang, Yutao Guo, Tao Wang, Huihui Wang, The role of sodium alginate in the flotation separation of apatite and dolomite, Powder Technology, Vol. 373, 2020. Wenxing Zhong, Wanzhong Yin, Yulian Wang, Jin Yao, ...

US3405802A - Flotation of apatite - Google Patents

US3405802A US470574A US47057465A US3405802A US 3405802 A US3405802 A US 3405802A US 470574 A US470574 A US 470574A US 47057465 A US47057465 A US 47057465A US 3405802 A US3405802 A US 3405802A Authority US United States Prior art keywords flotation apatite ore pulp sulphonate Prior art date 1964-07-20 Legal status (The legal status is an assumption and is not a

Solution Chemistry Study of Salt-type Mineral Flotation ...

Elimination of the Adverse Effect of Calcium Ion on the Flotation Separation of Magnesite from Dolomite. Minerals 2017, 7 (8) , 150. DOI: 10.3390/min7080150. Dong Li, Wan-zhong Yin, Ji-wei Xue, Jin Yao, Ya-feng Fu, Qi Liu.

Effect of geological origin of apatite on reverse ...

Micro-flotation tests for dolomite and apatite with different geological origins were carried out using an XFG-Ⅱ flotation machine with a stirring speed of 1700 rpm. The mineral suspension was prepared by adding 3.0 g of apatite (or dolomite) to 40 mL of deionized water in the micro-flotation cell.

"Dolomite flotation of high magnesium phosphate ores using ...

The separation of dolomite from apatite has been recognized as one of the most difficult subjects in mineral processing due to the similarities in their physiochemical properties. In this study, selective surfactants were used with a fatty acid soap collector to improve the flotation performance of separating dolomite from high magnesium phosphate ores.;Three surfactants, diethyl phthalate (DP ...

One More Solution to Dolomite/Apatite Separation Problem

selectivity of the separation, which is hard to achieve by conventional flotation or other methods for this type of ores due to the similarity of surface properties of apatite and dolomite. Researchers at the Particle Engineering Research Center at University of Florida have

Mechanism of calcium lignosulfonate in apatite and ...

Mar 04, 2021 · Since the physical and chemical properties of apatite and dolomite can be similar, the separation of these two minerals is difficult. Therefore, when performing this separation using the flotation method, it is necessary to search for selective depressants. An experimental research was performed on the separation behavior of apatite and dolomite using calcium lignosulfonate as a

Floating Separation between Collophanite and Dolomite ...

Dolomite depressants in the flotation of apatite and collophane from dolomite. Minerals Engineering. 1997, Vol. 10 (5), pp.537-545. DOI: 10.1016/s0892-6875(97)00031-9

Surface electrical behaviors of apatite, dolomite, quartz ...

The phosphate ore flotation is achieved through the surface electrical behavior difference among apatite, dolomite and quartz, but it is usually affected by the dissolved ions from pulp, especially Ca2+ and Mg2+. The zeta potentials of apatite, dolomite, quartz and phosphate ore in different solutions were measured to discuss the surface electrical behaviors of them in this study.

Surface Electrical Behaviors of Apatite, Dolomite, Quartz ...

Feb 18, 2020 · The phosphate ore flotation is achieved through the surface electrical behavior difference among apatite, dolomite and quartz, but it is usually affected by the dissolved ions from pulp, especially Ca2+ and Mg2+. The zeta potentials of apatite, dolomite, quartz, and phosphate ore in different solutions were measured to discuss the surface electrical behaviors of them in this study.

FLOTABILITY STUDIES OF THE MINERALS APATITE, CALCITE

The contact time was 5 minutes for ali minerais, apatite, calcite and dolomite, in a com starch solution. ln the case of sodium silicate, lhe contact time of apatite and calcite was 4 minutes and 2 minutes for dolomite. For sodium phosphate, it was 4 minutes for lhe calcite and 2 minutes for the apatite and dolomite,

processing methods of dolomite ores

Separation of Dolomite from the South Florida « Back. Separation of Dolomite from the South Florida Phosphate Rock. Volume 1. 02-023-050Final. Abstract. ... Reactive oily bubble technology for flotation of apatite ... Reactive oily bubble technology for flotation of apatite, dolomite ... high dolomite content phosphate ores. ...

Role of Pseudomonas songnenensis-Apatite Interaction on ...

Role of Pseudomonas songnenensis-Apatite Interaction on Bio-Flotation of Calcareous Phosphate Ore Samah S. Abdallah 1, ... various problems affect their separation by flotation technology, including high reagent consumption, excess froth stability, low adhesion probability, higher ... apatite, and dolomite [18-21].

dolomite zolone flotation - capeatlanticdistrictumw.org

Flotation of Dolomite from Apatite MDPI. The flotation process lasted 3 min for each test. Following this the flotation recoveries were calculated based on the weights of concentrates and tailings. For artificial mixed minerals flotation experiments the mass ratio of apatite and dolomite mineral was 1:1 for binary mixture.

云南某胶磷矿AMICS工艺矿物学研究及其难选机理探讨

Liu X, Li C X, Luo H H, et al. Selective reverse flotation of apatite from dolomite in collophanite ore using saponified gutter oil fatty acid as a collector. Int J Miner Process, 2017, 165: 20 doi: 10.1016/j.minpro.2017.06.004 [4]

Flotation separation of wolframite from quartz using N ...

However, the collecting power of N-oleoyl sarcosine acid towards quartz was weak. Therefore, the flotation separation of wolframite from quartz can be performed using N-oleoyl sarcosine acid as a collector. The adsorption tests and electrokinetic studies showed that N-oleoyl sarcosine acid adsorbed only on the wolframite surface.

Removal of MgO from Phosphate Pebble by Flotation Phase 2

Dec 02, 2014 · reactive flotation (RF) technology to separate dolomite from dolomitic phosphate ores. Research results suggested that polyvinyl alcohol (PVA) could be used to coat phosphate rock containing a high concentration of magnesium.