Selective flotation separation of fluorite and calcite by …

The flotation results indicated that the anionic/non-ionic collector exhibited an excellent selective capability for fluorite, and calcite recovery decreased to 45% when the molar ratio of NaOL and oleamide was 8:2, whilst fluorite recovery contained was maintained at 85%.

Superchaotropic ion flotation: A new concept for the …

It was also demonstrated that molybdate may be separated from tungstate at pH 2 by superchaotropic ion flotation. In conclusion, we propose a novel ion separation method via non-ionic surfactant aqueous s and we show that the superchaotropic effect makes it possible to foresee various applications in separation science.

Review of the reagents used in the direct flotation of

For ionic-ionic surfactant mixtures, Cao et al. investigated a fatty acid mixture of oleic acid (54 wt%), linoleic acid (36 wt%), and linoleic acid (10 wt%) as a collector for the apatite flotation; the results of mechanism studies illustrated that the adsorption of fatty acids in the form of hemi micelles at pH 9.5 at a concentration range ...

Fundamentals of froth flotation | ChemTexts

Froth flotation is a physicochemical process that is used to separate fine mineral particles from aqueous suspensions by selective attachment of some types of minerals to air bubbles. Froth flotation is the most important mineral processing technology for the production of valuable mineral concentrates from which metals and minerals are …

Selective flotation of silicates and Ca-bearing minerals: …

Highlights Flotation of pure minerals constituting the gangue of rare metal low grade ores was performed. Mixed collector synergetic effects confirmed for silicates and Ca-minerals flotation. Selective separation of palygorskite from silicates and Ca-minerals is achieved at pH 8. Reagents consumption lowered with addition of non-ionic reagent for …

Iodine Ionic-Molecular Flotation in a Lab-made Device

Separation by ion flotation was rarely approached, being applied mainly for recovering the heavy metal cations [18-20]. This paper presents a study for iodine regenerative separation by ionic flotation, in a lab-made device, from dilute aqueous synthetic solutions (20-120 ppm I-), which properly simulates the sea, probe or mine water.

Gold (III) adsorption from dilute waste solutions onto

Processes employing these chemical reagents are separation and purification processes (such as cementations, reduction, adsorption, coagulation, solvent extraction, ion exchange, gravity ...

Adsorption accumulation and separation of dissolved

This paper presents a study for iodine regenerative separation by ionic flotation, in a lab-made device, from dilute aqueous synthetic solutions (20-120ppm), which property simulates the sea ...

Figure 1 from Iodine Ionic-Molecular Flotation in a Lab …

Corpus ID: 56071494; Iodine Ionic-Molecular Flotation in a Lab-made Device Installation and Preliminary Tests @inproceedings{Tanczos2014IodineIF, title={Iodine Ionic-Molecular Flotation in a Lab-made Device Installation and Preliminary Tests}, author={Szidonia Katalin Tanczos and Alexandra Raluca Miron and Abbas Abdul Kadhim and Klaif Rikabi …

(PDF) Iodine Separation by Ionic Flotation

In this paper we present an ion flotation study for iodine recuperative separation from dilute aqueous synthetic solutions (20-120 ppm). In the presence of surfactants, cationic collectors,...

The iodine separation efficiency variation according to …

Separation by ion flotation was rarely approached, mainly for recovering the heavy metal cations. Installation simplicity as well as low power consumption needed in order to achieve the desired ...

Removal of iodine from the salt water used for caustic soda …

Iodine Separation by Ionic Flotation. A. Nechifor S. Sava S. Tanczos O. Gales A. Miron. Chemistry, Environmental Science. 2013 * email: andra3005@yahoo; Tel.: 0727057679 Sea, bore and/or mine water have a complex composition, containing a variety of components, in the form of soluble and insoluble iono-molecular and …

Concentration of iodine in the system phases with a …

from publication: Influence of the carrier (dibenzo-18 crown-6) on liquid membrane iodide separation | Iodide anion transport mechanism of liquid chloroform and carbon tetrachloride membrane with ...

Ion flotation

Ion flotation is a separation technology for recovering and removing metal ions from dilute aqueous solutions. In this process, an ionic collector is utilized to transport non-surface active ...

Flotation recovery of Y2O3 from waste phosphors using ionic …

For the first time, ionic liquid 1-dodecyl-3-methylimidazolium chloride was used as flotation collector to recovery Y2O3 from artificial mixed phosphors. The optimal results that the grade and recovery rate of Y 2 O 3 are 56.58% and 88.96% can be obtained.. The ionic liquid mainly adsorbed on the surface of red phosphors making the …

Removal of iodine from the salt water used for caustic soda production

Since the concentration of iodine in the electrolyzed salt water is required to <0.2 mg/L, the removal method adopted must be low cost, easy to operate, highly efficient and environmentally friendly. Ion exchange resin adsorption is one of the most widely used methods for the separation of trace components from complex matrices [[23], [24], [25]].

[PDF] Iodine Separation by Ionic Flotation | Semantic Scholar

Ion separation by flotation was rarely addressed, mainly to recover the heavy metal cations [18-20]. In this paper we present an ion flotation study for iodine recuperative separation from dilute aqueous synthetic solutions (20-120 ppm), simulating properly sea, bore or mine water.

Recovery and purification of ionic liquids from solutions: a …

Several methods for recovery of ionic liquids including distillation, extraction, adsorption, membrane separation, aqueous two-phase extraction, crystallization and …

(PDF) Flotation separation of quartz from phosphorite using …

The study illustrates the first ever use of Aliquat-336 (C25H54ClN), an ionic liquid, in the flotation separation of quartz from hematite. Laboratory flotation studies of hematite, quartz and ...

Extraction and separation of triazine herbicides in soybean by ionic …

Ionic liquid -based solvent flotation coupled with high performance liquid chromatography was developed for the extraction, separation and determination of four triazine herbicides, including terbumeton, terbuthylazine, dimethametryn and dipropetryn, from soybean samples. The flotation and concentration

Laboratory installation for ionic flotation b) overview of the

Download scientific diagram | Laboratory installation for ionic flotation b) overview of the components; c) air lens from publication: Iodine Separation by Ionic Flotation | In this paper we ...

Aurelia Cristina Nechifor, Sergiu Sava, Szidonia-Katalin …

Iodine Separation by Ionic Flotation: Abstract: In this paper we present an ion flotation study for iodine recuperative separation from dilute aqueous synthetic solutions (20-120 ppm). In the presence of surfactants, cationic collectors, flotation assisted by polyethyleneglycol or crown ethers, iodine separation efficiency was at least 50% in a ...

Flotation recovery of Y2O3 from waste phosphors using ionic …

In this study, ionic liquid 1-dodecyl-3-methylimidazolium chloride was used as collector to recover Y 2 O 3 from phosphors using flotation. Y 2 O 3 grade can rise from 30.51% to 56.58%, and the maximum Y 2 O 3 recovery of 88.96% can be achieved when 1-dodecyl-3-methylimidazolium chloride and citric acid were 0.3 mg/L and 600 g/t at pH = …

Use of ionic liquids for extraction separation and …

New technologies for iodine separation and recovery are required to decrease environmental pollution and improve iodine production. Separation and recovery of iodine (I 2) in aqueous solution was ...

Aurelia Cristina Nechifor, Sergiu Sava, Szidonia-Katalin …

In the presence of surfactants, cationic collectors, flotation assisted by polyethyleneglycol or crown ethers, iodine separation efficiency was at least 50% in a single stage …

Minerals | Free Full-Text | Silver (I) Recovery by Ion Flotation

The flotation cell can present several advantages with respect to other equipment, these are the decreases in the residence time of the continuous and dispersed phases, and the mixing conditions inside the cell, these allow for the increase of bubble-organometallic contacts to increase the efficiency of separation by flotation and ionic ...

Ion flotation—its potential for hydrometallurgical operations

Ion flotation is a separation technology for recovering and removing metal ions from dilute aqueous solutions. In this process, an ionic collector is utilized …

Influence of lead ion pretreatment surface modification on reverse

The flotation separation of fluorite and calcite poses a long-standing challenge in the mineral processing industry. Conventional flotation exhibits a poor separation for high-calcite-type fluorite ores. ... SI = log(IAP/K s), where IAP is the ionic activity product and K s is the solid solubility product, which can be used to characterize ...

Discrepant adsorption behavior of sodium alginate onto …

Flotation experiments demonstrated that NaAl exhibited excellent selective inhibition performance in the flotation separation of apatite from calcite. A concentrate with P 2 O 5 grade and recovery of 34.32% and 82.27% respectively was obtained in the bench-scale flotation experiment.

Removal of iodine from the salt water used for caustic soda …

One of the most common technological processes for the production of caustic soda by ionic exchange membrane electrolysis method is shown in Fig. 1.Generally, most of the crude salt or crude salt water used for caustic soda production contains a certain concentration of iodine, even if the salt water containing a low …

Ovidiu Gales's research works | Polytechnic University of …

Ovidiu Gales's 8 research works with 47 citations and 545 reads, including: Iodine Separation by Ionic Flotation

Iodine Ionic-Molecular Flotation in a Lab-made Device

separation by ionic flotation, in a lab-made device, from dilute aqueous synthetic solutions (20-120 ppm I-), which properly simulates the sea, probe or mine water. The aim is to …

Highly efficient electroextraction of gold and simultaneous iodine …

The iodination method is a cyanide-free and efficient gold-leaching process, but a large amount of electric energy is consumed for hydrogen evolution during the process of gold recovery by electrodeposition in the iodide/H 2 O system. Herein, [C 2 MIM][N(CN) 2] ionic liquids were developed as electrolytes to overcome the limitations …