Flotation. Study of celestite flotation efficiency using sodium dodecyl sulfonate collector: Factorial experiment and statistical analysis of data. DOI: 10.1016/S0301-7516 (02)00152-7....
This paper studies the influence of two pH modifiers, namely sodium hydroxide (NaOH) and sodium carbonate (Na2CO3), on the flotation of celestite ore using sodium oleate as the collector and ...
Request PDF | The role of quebracho and sodium silicate modifiers on the flotation of celestite and calcite with sodium dodecyl sulfonate | Microflotation and …
In practical celestite flotation, iron contamination is commonly found on celestite surfaces. The effect of ferric ions on celestite flotation was assessed by a combination of ion release experiments, DFT calculation, X-ray photoelectron spectroscopy (XPS) analysis, adsorption isotherm study, and flotation experiments in this work.
The effect of pH modifier on the flotation of celestite with sodium oleate and sodium metasilicate Author DE CASTRO, F. H. B 1; DE HOCES, M. C 1; BORREGO, A. G 1 [1] …
DOI: 10.1016/0301-7516(93)90032-6 Corpus ID: 96221090; Influence of quebracho and sodium silicate on flotation of celestite and calcite with sodium oleate @article{Castro1993InfluenceOQ, title={Influence of quebracho and sodium silicate on flotation of celestite and calcite with sodium oleate}, author={Francisco Hern{'a}inz …
4. Modifiers. The binding of the collector and mineral is important for froth flotation. Modifiers change the mineral's surface property and insist it attaches to the collector. Example: Lime and soda ash (pH modifier), phosphates and silicates (anionic modifier), starch and dextrin (cationic modifier). Overview of pH modifiers
The purified mineral samples of celestite, fluorite and calcite were supplied by Tongliang of Chongqing city (China). To study the chemical characteristics and mineral compositions of celestite, fluorite and calcite, the chemical composition and X-ray diffractometry of these three minerals were shown in Fig. 1 and Table 1, respectively.The …
Flotation. This is an overview of setting up and conducting a flotation rate test. The test is a means of determining the flotation characteristics of an ore. It is conducted in a laboratory scale cell usually …
Abstract The celestite ore from Sivas, Turkey which was subjected to this experimental study contained mainly celestite and gypsum as gangue minerals. Flotation behaviour of pure minerals, celestite and gypsum was investigated using oleate and sulphonate as collectors in a Hallimond tube. The zeta potential values of both minerals were measured …
This paper studies the influence of two pH modifiers, namely sodium hydroxide (NaOH) and sodium carbonate (Na 2 CO 3), on the flotation of celestite ore using sodium oleate as the collector and quebracho as the depressant.Results show that, for the same experimental conditions (pH = 10.5, sodium oleate = 1500 g/Tm and low …
The contact angles of the ternary system celestite + sodium oleate aqueous solutions + air were measured in the range 7.3 × 10-6 mol·L-1 and 6.2 × 10-4 mol·L-1 of …
The effect of pH modifier on the flotation of celestite with sodium oleate and sodium metasilicate Author DE CASTRO, F. H. B 1; DE HOCES, M. C 1; BORREGO, A. G 1 [1] Dep. de Ingeniería Química, Facultad de Ciencias, Universidad de Granada, Spain Source. Minerals engineering. 1998, Vol 11, Num 10, pp 989-992 ; ref : 8 ref. CODEN
At Mountain Pass. bastnasite concentrates are produced by froth flotation. In the milling operation the ball mill discharge containing 9.5 pct RE2O3 is heated to boiling and conditioned with lignin sulfonate, a gangue depressant, and fatty acid collector. ... gangue depressant, 5 lb/ton of ore; and sodium carbonate modifier, 12 lb/ton of ore ...
This paper studies the influence of two p H modifiers, namely sodium hydroxide (Na OH) and sodium carbonate (Na2CO3), on the flotation of celestite ore using sodium oleate as the collector and quebracho as the depressant.
@article{Tian2019UseOA, title={Use of Al2(SO4)3 and acidified water glass as mixture depressants in flotation separation of fluorite from calcite and celestite}, author={Jia Tian and Longhua Xu and Wei Sun and Xiaobo Zeng and Shuai Fang and Hai-sheng Han and Kai Hong and Yue-hua Hu}, journal={Minerals Engineering}, …
DOI: 10.1016/S0301-7516(00)00004-1 Corpus ID: 95629000; Flotation of celestite with the anionic collector sodium dodecyl sulfate. Effect of carbonate ions @article{LpezValdivieso2000FlotationOC, title={Flotation of celestite with the anionic collector sodium dodecyl sulfate.
Abstract. This paper studies the influence of two pH modifiers, namely sodium hydroxide (NaOH) and sodium carbonate (Na 2 CO 3 ), on the flotation of …
The depressant effect of the flotation modifiers (commonly termed depressants) on the calcium-bearing gangue minerals is usually realized through the interactions between the calcium ions on mineral surface and the functional groups in their molecules. ... Influence of quebracho and sodium silicate on flotation of celestite and …
This paper studies the influence of two pH modifiers, namely sodium hydroxide (NaOH) and sodium carbonate (Na 2 CO 3 ), on the flotation of celestite ore …
The flotation recovery of celestite was less than 10% when pH less than 7.0, while the flotation recovery of fluorite could still maintain 85.18% at pH 6.0. According to Fig. 6 (b), the flotation recovery of fluorite and celestite decreased obviously with the increase of SPS concentration. When the concentration of SPS was 20 mg/L, the ...
The flotation of celestite is depressed only above pH 10, due to the specific adsorption of HCO3− and CO32− species that inhibit the adsorption of dodecyl sulfate on the carbonated surface of ...
Sulfate minerals have gradually become the main gangue minerals of fluorite deposits, and the flotation separation of fluorite and sulfate minerals is difficult with commonly used depressants. In this paper, the high selectivity of a novel depressant sodium polynaphthalene formaldehyde sulfonate (SPS) for the flotation separation …
DOI: 10.1016/J.MINENG.2017.06.019 Corpus ID: 102938898; Effect of a CA depressant on flotation separation of celestite from fluorite and calcite using SDS as a collector @article{Zeng2017EffectOA, title={Effect of a CA depressant on flotation separation of celestite from fluorite and calcite using SDS as a collector}, author={Xiaobo Zeng and …
This branch of chemicals will prepare the mineral surface so other reagents will be able to collect the metal. For Conditioners and Modifiers, it may be simply cleaning the surface of the particles, as in the case of removing oxidization, or it may be a chemical that these are the chemicals that bind the mineral ... Flotation Conditioners …
Flotation results showed that, in the presence of sodium oleate (NaOL) and SPS, the flotation recovery difference between fluorite and celestite reached 76.26% and the grade of fluorite ...
In a study to investigate how the degree of grinding influenced the concentration of celestite, the concentrate was found to increase in celestite (SrSO4) content from 52 to 65 mass% when the size was reduced from 80/100 (177/149) to 160/200 mesh (88/74 μm). Experiments were conducted for the concentration of celestite ore by flotation using a …
The worsened flotation of scheelite in mixed minerals may be attributed to the dissolution of gangue minerals, which can make the scheelite surface partial similar to that of calcite or fluorite in solutions. However, it is still worthy highlighting that NaAl can act as an effective modifier in scheelite flotation. 3.2.
Experiments were conducted for the concentration of celestite ore by flotation using a mechanical cell with a 3 l capacity for particles sizes ranging between 80 and <400 mesh …
This paper aims to determine the flotation rate of celestite and calcite with sodium dodecylsulphate (SDS), using the kinetic models based on chemical analogy. Likewise, this study supplements a previous work (Hernáinz and Calero [7]) in which the flotation rate of both minerals was determined using sodium oleate as collector agent. 2.
DOI: 10.1016/0009-2509 (96)00278-3. Corpus ID: 14073736. The effect of pH modifier on the flotation of celestite with sodium oleate and quebracho. F. H. D. Castro, M. C. D. …
This paper studies the influence of two pH modifiers, namely NaOH and Na2CO3, on the flotation of celestite using sodium oleate as the collector and sodium silicate as the depressant. EXPERIMENTAL Mineral species The experiments were …
Mentioning: 3 - A~traet--This paper studies the influence of two pH modifiers, namely sodium hydroxide (NaOH) and sodium carbonate (Na2CO3), on the flotation of celestite ore using sodium oleate as the collector and quebracho as the depressant. Results show that, for the same experimental conditions (pH = 10.5, sodium oleate = 1500 g/Tm and …
Similar to the celestite flotation, the decrease in the shear flocculation of celestite suspension with SDS was attributed to the similar reasons in the presence of sodium silicate. ... Selective flotation of scheelite from calcium minerals with sodium oleate as a collector and phosphates as modifiers, 1. Selective flotation of scheelite. Int ...
