Selective Separation of Radiocesium from Complex

Selective cesium removal from radioactive liquid waste by crown ether immobilized new class conjugate adsorbent. J. Hazard. Mater., 278 (2014) ... Organically modified clay with potassium copper hexacyanoferrate for enhanced Cs + adsorption capacity and selective recovery by flotation. J. Mater. Chem. A, 5 (2017), pp. 15130-15143.

SELECTIVE REMOVAL OF CESIUM(I), STRONTIUM(II) and …

We now present results for the selective removal of cesium(I), strontium(II) and barium(II) cations with proton-ionizable lariat ethers in the ion flotation process from dilute …

(120d) Selective Separation of Cesium Contaminated …

The preferential recovery of the contaminated particles was confirmed by EDX data, which showed increased Cs distribution in the collected particles, thus …

Removal of cesium from aqueous solutions and

Coprecipitate flotation (CPF) investigations show that cesium can be efficiently separated from aqueous solutions by coprecipitation with zinc …

Comparison of Adsorbents for Cesium and Strontium in Different …

Adsorption is an effective method to remove cesium and strontium from a solution. Although a variety of adsorbents has been reported, it is difficult to compare their adsorption properties due to different experimental conditions (such as solution concentration, volume, composition, temperature, etc.). In this paper, a series of …

Removal of cesium from aqueous solutions and radioactive waste

In terms of its application in nuclear related fields, ion flotation and combined co-precipitation methods have been used to remove radioisotopes of cesium, strontium and cobalt, while fine ...

Selective separation of cesium contaminated clays from pristine …

The current study highlights the potential for flotation to rapidly treat contaminated clay rich soils and significantly reduce the volume of contaminated solids for further treatment or ultimate disposal. ... (2019) Selective separation of cesium contaminated clays from pristine clays by flotation. Chemical Engineering Journal, 355. pp. 797 ...

Selective Separation of Radiocesium from Complex

Selective Cs separation from wastewater is challenging, owing to the competitive behavior of Na + and K + with Cs + in many solid-solution systems, …

Organically modified clay with potassium copper

Organically modified clay with potassium copper hexacyanoferrate for enhanced Cs + adsorption capacity and selective recovery by flotation ... ≥99%), copper sulfate (CuSO 4 ·5H 2 O, Reagent Plus, ≥99%) and cesium chloride (CsCl, analytical grade) were purchased from Sigma-Aldrich and used as received.

Systematic review of feldspar beneficiation and its comprehensive

Various approaches for the selective flotation of feldspar and perspectives for further investigation are proposed. Introduction Feldspars are a group of aluminosilicate minerals containing potassium, sodium, and calcium, and occasionally, barium, cesium, and isomorph composition of these elements (Heyes et al., 2013, King, xxxx).

Selective Flotation

Flotation has progressed and developed over the years; recent trends to achieve better liberation by fine grinding have intensified the search for more advanced means of …

APPLICATION OF SOIL SIZE SEPARATION AND MICRO-BABBLE FLOTATION …

Flocculation–flotation studies were performed using a non-ionic polymer (920SH SNF-Floerger®) added to a suspension flow (4 L/min) at an air/solid rate (A/S) of 0.02 mg/mg.

Extraction of rubidium and cesium from oilfield brine by the two …

Flotation is an efficient solid–liquid separation technology that can be used for large-volume solid–liquid separation processes, and is more suitable for actual production processes. ... A new cesium ion selective graphite rod electrode based on Cs-molybdophosphate. Anal. Lett., 37 (2004), pp. 21-33, 10.1081/al-120027771.

A new strategy for selective recovery of low

A new strategy for selective recovery of low concentration cobalt ions from wastewater: Based on selective chelating precipitation-flotation process ... Under the optimized precipitation flotation conditions, the flotation recovery ratios of the copper, cobalt, and zinc ions were found to be 98.47%, 42.48%, and 9.35%, respectively, and the ...

The effect of cationic surfactants on improving natural

Flotation using cationic surfactants has been investigated as a rapid separation technique to dewater clinoptilolite ion exchange resins, for the decontamination of radioactive cesium ions (Cs +) from nuclear waste effluent.Initial kinetic and equilibrium adsorption studies of cesium, suggested the large surface area to volume ratio of the …

Selective separation of cesium contaminated clays from …

Demonstration of flotation to separate cesium (Cs) contaminated clays. • EDAB surface decoration of CS-MMT modifying particle size and wettability. • Increased Cs contamination led to increased Cs-MMT recovery. • Selective separation of Cs-MMT …

Efficient extraction of Rb+ and Cs+ by a precipitation flotation

The concentration ratios of potassium over cesium decreased from 216 in the feed solution to 42 in the loaded organic solution and that of potassium over rubidium from 22 to 4.3, resulting in a ...

Selective removal of cesium(I), strontium(II) and barium(II) cations

The influence of aqueous solution pH on the flotation rate and efficiency with lariat ethers possessing DB-16-C-5 cavity and four different acidic groups, i.e. sulfonamide (1), sulfonic (2), carboxylic (3), and phosphonic (4) was studied. It was found that, the ion flotation of Cs (I), Sr (II) and Ba (II) cations with dibenzo-16-crown-5 ...

Selective removal of cesium(I), strontium(II) and barium(II) cations

An experimental investigation is presented on competitive flotation of cesium(I), strontium(II) and barium(II) cations from dilute aqueous solutions with proton-ionizable lariat ethers in the presence of ing agent. The influence of aqueous solution pH on the flotation rate and efficiency with...

(PDF) Selective separation of cesium contaminated …

Within a critical concentration range of EDAB, the cesium contaminated clays were separated from pristine clays using flotation, with recovery efficiencies of ∼75% for the contaminated clays,...

Adsorption of cesium using supermolecular impregnated XAD-7 …

Zhang H, Tangparitkul S, Hendry B et al (2019) Selective separation of cesium contaminated clays from pristine clays by flotation. Chem Eng J 355:797–804. Article CAS Google Scholar Wang K, Ma H, Pu S et al (2019) Hybrid porous magnetic bentonite-chitosan beads for selective removal of radioactive cesium in water.

Selective removal of cesium(I), strontium(II) and barium(II) cations

Physicochemical Problems of Mineral Processing, 38 (2004) 139-146 Fizykochemiczne Problemy Mineralurgii, 38 (2004) 139-146 Paweł MACIEJEWSKI*, Władysław WALKOWIAK** SELECTIVE REMOVAL OF CESIUM(I), STRONTIUM(II) and BARIUM(II) CATIONS WITH PROTON-IONIZABLE LARIAT ETHERS IN THE ION FLOTATION …

Effective removal of cesium from wastewater via

In the case of selective cesium ion removal, the sieving effect from the structural specificity of crystals and organic molecules has been exploited. For ... Selective separation of cesium contaminated clays from pristine clays by flotation. Chem. Eng. J., 355 (2019), pp. 797-804, 10.1016/j.cej.2018.07.135. View PDF View article View in …

Studies of Collectors. XIII. The Selective Flotation of Cesium Ion …

The resorcinol-type calix[4]arenes with alkyl side chains, [4]Ar-R n, were prepared and then investigated as flotation collectors of Cs +. Alkali metal ions (Na +, K +, Rb +, and Cs …

SELECTIVE REMOVAL OF CESIUM(I), STRONTIUM(II) and …

selective, which might have a practical meaning for the decontamination of industrial (toxic, radioactive) aqueous solutions. Key words: ion flotation, cesium(I), strontium(II), barium(II), proton-ionizable crown ether INTRODUCTION The ion flotation process is a simple and an effective method for removal and

Cesium Faq

Cesium 137 is also important as a source of high-energy X-rays in radiotherapy. The 660 KeV X-rays are actually emitted by a two step process, where Cesium 137 decays by beta emission to metastable Ba137, which then emits the X-ray. A few years back, an ampule of Cs 137 from a discarded radiotherapy device was recovered from a garbage dump in ...

David Harbottle | ScienceDirect

The effect of cationic surfactants on improving natural clinoptilolite for the flotation of cesium. Prajitno, M.Y., Tangparitkul, S., Zhang, H., Harbottle, D., Hunter, T.N. Journal of Hazardous Materials • 15 January 2021. ... Due to the rapid and selective cesium adsorption properties of KCuHCF, the fabricated membrane was found to be ...

Amide group enhanced self‐assembly and adsorption of thioether

Thioether-containing hydroxamic acid (BTHA) is an excellent oxidized-ore collector with poor dispersibility. Herein, acylamino, which possesses the ability to improve the surfactants' self-assembly and dispersion, was introduced to synthesize N-[6-(hydroxyamino)-6-oxohexyl] benzylthioacetamide (BTAHA); thus, applying it to …

Selective removal and immobilization of cesium from aqueous

As a typical effective cesium ion removal method, this research presents a facile method of preparing potassium copper hexacyanoferrate on the surface of sludge created from refinery wastewater treatment (KCuHCFS). The IR, SEM–EDX, BET, and TGA were used to characterize the functionalized sludge KCuHCFS. On the adsorption …

Extraction of rubidium and cesium from oilfield brine by the two …

Flotation is an efficient solid–liquid separation technology that can be used for large-volume solid–liquid separation processes, and is more suitable for actual production processes. ... A new cesium ion selective graphite rod electrode based on Cs-molybdophosphate. Anal. Lett. (2004) View more references. Cited by (0) Recommended articles (6)

Selective recovery and efficient separation of lithium, rubidium, …

The extraction rates of lithium, rubidium, and cesium were 90.5%, 91.2%, and 89.4%, respectively, whereas those of aluminum and iron were only 0.08% and 0.02%, respectively. The selective extraction of lithium, rubidium, and cesium was realized, and 90.4% of sulfuric acid could be recycled during the process.

Efficient extraction of Rb+ and Cs+ by a precipitation flotation

After flotation, a sample was taken from the liquid phase through the control valve to analyze concentrations of Rb + and Cs + remaining in the flotation solution. The flotation products were collected and analyzed by SEM, EDS and FTIR. ... Selective uptake of cesium by ammonium tungstophosphate (Awp) - calcium alginate composites. …

Flotation of Cesium Coprecipitated with Nickel Hexacyanoferrate(II

Selective separation of gallium from aluminum by ion flotation using sodium dodecyl sulfate (SDS) as an anionic surfactant and fluoride as an inorganic ligand was investigated.

Selective removal of cesium(I), strontium(II) and barium(II) cations

An experimental investigation is presented on competitive flotation of cesium(I), strontium(II) and barium(II) cations from dilute aqueous solutions with proton-ionizable lariat ethers in the presence of ing agent. ... SHOSENJI H., YAMADA K., 1993, The selective flotation of cesium ion with resorcinol type calix[4]arenes with alkyl side ...