flotation cesium nickel

A novel nickel (II) hexacyanoferrate (III) functionalized agricultural residue-walnut shell (Ni II HCF III-WS) was developed to selectively remove cesium ion (Cs +) from aqueous solutions.This paper showed the first integral study on Cs + removal behavior and waste reduction analysis by using biomass adsorption material. The results indicated that …

The effect of stable cesium concentration on the removal efficiency of cesium by the isotope dilution–precipitate flotation process at pH values of about 6.5 and 10 using SLS and CPC, respectively, is shown in Fig. 4. As can be seen from this figure, the final Cs-137 activity decreased with increasing the stable cesium concentration.

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 …

The second stage of froth flotation produces a nickel concentrate of 10-20% Ni, along with other by-products and gangue. Smelting is the next stage, designed to recover as much metal as possible. Flash smelting is a common method: dry concentrates are fed into a furnace and heated to a liquid matte and slag. From this step, sulfide matte …

A polyacrylonitrile–potassium nickel hexacyanoferrates composite adsorbent was prepared to remove cesium ion in aqueous solution. The dual nozzle technique was applied to prepare a composite sphere. The physicochemical behavior of the ion exchanger was specified with different techniques including Fourier transform infrared …

Various factors influencing coprecipitation of cesium tracer with nickel ferrocyanide were studied. The precipitate was separated by filtration of a suspension through filtering materials of different pore size. The following optimal conditions for decontamination of solutions from cesium radionuclides were found: pore size of the …

A polyacrylonitrile–potassium nickel hexacyanoferrates composite adsorbent was prepared to remove cesium ion in aqueous solution. The dual nozzle technique was applied to prepare a composite sphere.

Coprecipitation flotation is an efficient treatment method, but the related research is insufficient. In this study, the removal rates of Cs+ by KMFC with Ni2+, Cu2+, Co2+, and Cd2+ are investigated.

Semantic Scholar extracted view of "Removal of cesium ions using nickel hexacyanoferrates-loaded bacterial cellulose membrane as an effective adsorbent" by S. Zhuang et al. ... Metal potassium ferrocyanide (KMFC) has been widely used for the removal of cesium from wastewater. Coprecipitation flotation is an efficient treatment …

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

In coprecipitate flotation the ionic species to be removed, cesium in the present case, is first occluded with a suitable hydrophobic precipitate formed in situ [28]. A suitable surfactant (the ...

In present paper, a porous carbon composite electrode, doped with nickel hexacyanoferrate, was prepared for electrochemical removal of cesium ions from aqueous solutions. Based upon the applied voltage of −3 V, a adsorption was achieved in 3 h for the initial Cs+ concentration of 10 ppm in solution. The maximum capacity was 155.2 …

DOI: 10.1016/j.jhazmat.2020.123567 Corpus ID: 221016874; The effect of cationic surfactants on improving natural clinoptilolite for the flotation of cesium. @article{Prajitno2020TheEO, title={The effect of cationic surfactants on improving natural clinoptilolite for the flotation of cesium.}, author={Muhammad Yusuf Prajitno and Suparit …

Coprecipitate flotation (CPF) investigations show that cesium can be efficiently separated from aqueous solutions by coprecipitation with zinc hexacyanoferrate(II) (ZnHCF) and subsequent flotation of the precipitate. Collectors of different types were tested but cetyl pyridinium chloride showed the best performance. …

As an effective cesium complex agent, calix[4]biscrown-6 (CBC) applied at a low cost way is of interest. In this study, CBC/XAD-7 was prepared by embedding CBC into XAD-7. Subsequently the as-prepared sorbent was used for the removal of cesium from aqueous solution as functions of HNO3 concentration, contact time, temperature and …

Semantic Scholar extracted view of "Removal of cesium ions using nickel hexacyanoferrates-loaded bacterial cellulose membrane as an effective adsorbent" by S. …

1. Introduction. Rapid economic development has created an ever-increasing demand for energy worldwide. As a form of renewable energy, nuclear energy has been considered a lot for applications in various fields because of its low carbon emissions, high efficiency, and low cost (Hwang et al., 2020; Lovering et al., 2016).Although the …

The coprecipitate flotation of Cs from dilute aqueous solutions and simulated radioactive wastes using nickel hexacyanoferrate(II) as a coprecipitant and sodium lauryl sulfate ...

Cesium sorption on nickel ferrocyanide, precipitated on silica gel (PNF-SG) from low and intermediate level liquid radioactive waste was investigated in a fixed-bed column. The breakthrough characteristics of the ion-exchange system were studied at different Cs concentrations (50–150 mg/L), bed heights (20–60 mm) and feed flow rates (1–6 …

Removal of cesium ions using nickel hexacyanoferrates-loaded bacterial cellulose membrane as an effective adsorbent. Journal of Molecular Liquids, 294: 111682. Article CAS Google Scholar Zhuang S T, Wang J L (2019b). Removal of U(VI) from aqueous solution using phosphate functionalized bacterial cellulose as efficient adsorbent.

Abstract. Metal potassium ferrocyanide (KMFC) has been widely used for the removal of cesium from wastewater. Coprecipitation flotation is an efficient …

To see the effect of closed water circulation on metallurgical performance, flotation tests were carried out with nickel concentrate thickener overflow water before and after the process of water purification by dissolved air flotation (DAF). Both total nickel recovery and concentrate grade in laboratory scale flotation tests to the Ni rougher ...

Coprecipitation of Cs+ and nickel potassium ferrocyanide (KNiFC) is an important water treatment method for radioactive wastewater containing Cs+. In this study, the effects of coprecipitation experimental conditions on Cs+ removal rate, coprecipitates compositions and particle sizes distribution of coprecipitates are investigated completely …

Flotation of Cesium Coprecipitated with Nickel Hexacyanoferrate (II) from Aqueous Solutions and Radioactive Waste Simulants | Request PDF. DOI: Authors: K. …

Flotation of Cesium Coprecipitated with Nickel Hexacyanoferrate(II) from Aqueous Solutions and Radioactive Waste Simulants. Separation Science and Technology 2007, …

A simple, selective and rapid flotation method for the separation–preconcentration of trace amounts of cobalt, nickel, iron and copper ions using phenyl 2-pyridyl ketone oxime (PPKO) has been developed prior to their flame atomic absorption spectrometric determinations. The influence of pH, amount of PPKO as …

A solution contains nitrates of silver, copper, nickel, cesium, and barium, Fill in the qualitative analysis scheme below with the products of the precipitates formed after each step of the procedure. • Do not change the formulas of the compounds already given. 'b d e compounds a cauy given your answer below: Solution containing unknown ...

Although the NaTPB concentration increased from 7.5 × 10 −4 to 1 × 10 −3 mol/L, the flotation efficiency of cesium (remaining Cs-137 activity, DF, and ER) is …

Abstract The coprecipitate flotation of 137Cs from dilute aqueous solutions and simulated radioactive wastes using nickel hexacyanoferrate(II) as a coprecipitant and sodium …

Metrics. Reprints & Permissions. Read this article. The coprecipitate flotation of 137 Cs from dilute aqueous solutions and simulated radioactive wastes using …

The flotation process involves crushing the ore to liberate separate grains of the various valuable minerals and gangue components, pulping the ore particles with water, and …

Most of the world's nickel is extracted from the mineral pentlandite, (Ni, Fe)9S8, which frequently oc-curs in ores containing predominantly pyrrhotite and various non-sulRdes, some of which contain magne-sium (Table 1). The nickel content in such sul Rde ores is generally low (0.2}3%) and varies from place to place in the same deposit.

DOI: 10.1016/J.SEPPUR.2006.10.006 Corpus ID: 93583176; Removal of cesium from aqueous solutions and radioactive waste simulants by coprecipitate flotation @article{Shakir2007RemovalOC, title={Removal of cesium from aqueous solutions and radioactive waste simulants by coprecipitate flotation}, author={Kamal Shakir and …

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 …

Metal potassium ferrocyanide (KMFC) has been widely used for the removal of cesium from wastewater. Coprecipitation flotation is an efficient treatment method, but the related research is insufficient. In this study, the removal rates of Cs^+ by KMFC with Ni^2+, Cu^2+, Co^2+, and Cd^2+ are investigated. The continuous coprecipitation flotation …

Abstract. Nickel sulphide ores containing pentlandite, pyrrhotite and talc have traditionally been treated by bulk sulphide flotation, an approach which seeks to maximise nickel recovery and talc rejection but which does not reject pyrrhotite. Concentrates have therefore been of moderate grade containing as much pyrrhotite as pentlandite or more.

Metal potassium ferrocyanide (KMFC) has been widely used for the removal of cesium from wastewater. Coprecipitation flotation is an efficient treatment method, but the related research is insufficient. In this …

The final tailing was rejected in the cobalt-nickel circuit. The flotation pilot plant is shown. Results typical of a single shift during the pilot run are summarized. The recoveries of lead and copper were 87.1% and 81.6% in a concentrate analyzing 20.6% copper, 10.1% lead, 0.99% nickel, and 0.77% cobalt.

It should be added that segregation of laterite ores prior the flotation process has shown some improvement in upgrading nickel. The segregation process relies on the addition of calcium chloride or sodium chloride and carbon allowing the formation of nickel and iron chlorides at temperatures between 900 and 1150 °C. Iwasaki et al., (1961) and …

The extent of contamination can be substantial, hence ways to remediate and reduce the volume of waste for further treatment and ultimate disposal are highly desired. In the current study, flotation has been considered as an engineering solution to rapidly separate cesium contaminated clays from low-level contaminated and pristine clays.