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Comparison of the effect of alpha and gamma radiolysis on

Ways to separate the various components in the used fuel are being investigated in projects worldwide and the two main research areas are hydro and pyrometallurgy Hydrometallurgy primarily refers to solvent extraction processes e g the industrial PUREX Plutonium Uranium Redox EXtraction process It separates U and Pu from the rest of the


62 Aerobic granular sludge inoculated microbial fuel cells for enhanced epoxy reactive diluent wastewater treatment Kai Cheng# Jingping Hu# Huijie Hou Bingchuan Liu Qin Chen Keliang Pan Wenhong Pu Jiakuan Yang Xu Wu Changzhu Yang Bioresource Technology 2017 229 126–133 full text online 61

Extraction of palladium II from nitric acid solutions

Effect of contact time on the extraction percentage of Pd II was evaluated from 0 1 mol/L HNO 3 solution with 0 01 mol/L TODGTA in kerosene The contact time was varied from 1 to 60 min at 298 K s effect on the extraction percentage E is shown in Fig 1 Di TODGTA reaches equilibrium faster than mono TODGTA 25 min and 45 min of contacting are adequate for extraction experiments

Predictive LES Modeling and Validation of High Pressure

Oxy fuel combustion has been used previously in a wide range of industrial applications Oxy combustion is carried out by burning a hydrocarbon fuel with oxygen instead of air Flames burning in this configuration achieve higher flame temperatures which present opportunities for significant efficiency improvements and direct capture of CO 2

Process development and optimization for platinum

These preliminary experiments were conducted with 25 vol HNO 3 /HCl A and C process alternative and 3 vol H 2 O 2 /HCl B and D process alternative synthetic leaching liquors containing 2 g Pt L − 1 with the following extractant/diluent couples according to the literature Aliquat 336/keroseneRaju et al 2012 and Cyanex 923/tolueneGupta and Singh 2013 However the cited papers report

Evaluation of the Efficiency of Industrial Flares Flare


Contribution of Energetically Reactive Surface Features to

In the safety case for the geological disposal of nuclear waste the release of radioactivity from the repository is controlled by the dissolution of the spent fuel in groundwater There remain several uncertainties associated with understanding spent fuel dissolution including the contribution of energetically reactive surface sites to the dissolution rate In this study we investigate how

Evaluation of the Efficiency of Industrial Flares Flare

Comparison of ethylene oxide destruction efficiency on the FSF 1/16 inch nozzle and the pilot scale FTF 3 inch open pipe flare shows the difference in destruction efficiency measured in the two facilities Ethylene oxide DE on the FSF was 96 95 percent compared to 98 4 and 99 5 percent on the FTF Also industrial flares typically employ

The Third International Symposium on Hydrometallurgy

Opening Remarks K Osseo Asare Ladies and gentlemen on behalf of the Organizing Committee I welcome you most warmly to the Third International Symposium on Hydrometallurgy AIME has sponsored two previous such symposia 1963 in Dallas Texas with Milton Wadsworth and Franklin Davis as the symposium cochairmen and in 1973 in Chicago with

Dr Saman IlankoonEngineering Monash University Malaysia

Dr Saman has extensive mining minerals processing chemical process engineering and industrial rock blasting teaching and research experiences at Imperial College London Monash University Malaysia campus Department of Chemical Engineering and University of Moratuwa Sri Lanka Department of Earth Resources Engineering

Effect of Industrial fuel tracer on diluent performance

In summary at the correct dose rate of 20ppm there is little or no effect on the CuSX process and this has been backed up by the past 5 years of the addition of the tracer to diluents on the African continent At the correct dose rate of 20ppm PDT s were identical to unmarked diluent

Efficient extraction of Nd III by calix 4 arene

The extraction properties of the calix 4 arene derivatives ① ② ⑤ and ⑥ for Nd III were quite different for each diluent From Fig 3 it can be found that the most effective diluent for the extraction of Nd III was dichloromethane CH 2 Cl 2 It was chosen as the diluent in the following experiments for its good solvent properties and lack of emulsification activity

Metal extraction from a deep eutectic solvent an insight

The solvent extraction of gold palladium technetium indium and rhenium from both mixtures of a deep eutectic solvent with aqueous salt solutions and of two different aqueous salt solutions has been performed Initially using gold and then the other

Solvent extraction a high performance technology

Nuclear industry reprocessing of nuclear fuel Mineral chemistry Nuclear industry Hydrometallurgy copper PMG Recycling rare earths Organic chemistry Pharmaceutical and fine chemistry Petroleum industry Food industry Platinum Group Metal liquid liquid extraction comes back review of R Grant Johnson Mattheys Isec14 Septembre

Table of conTenTsGecamin

31 Copper solvent extraction diluent choice optimised properties equals optimised plant performance Peter a Haig andrew M Duthie and sergio M Valladares CHAPTER 2 Hydrometallurgy and metals extractions 34 Recovery of zinc from hot dip galvanising effluent using tri n butyl phosphate Kwan H lum sandra e Kentish and Geoff W stevens

Study of fuel injection and mixture formation for a CORE

Tracer evaporation issues in the PLIF technique were resolved by using a dual tracer system The study showed that the LSD technique provided good quantitative data in low evaporation regimes In highly evaporating regimes the technique still gave reliable dropsize data for the early stages of the injection but was limited afterwards by

Solvent extraction of iron III from hydrochloric acid

Extraction technology of Fe III is important to the low grade ferrous ore processing and decontamination of industrial products such as waste printed circuit boards The performance of extraction and stripping of Fe III from hydrochloric acid with N N N ′ N′ tetra 2 ethylhexyldiglycolamide T2EHDGA in different diluents was studied in order

Effect of diluent polarity on membrane stability in the

The polarity of diluents is also a parameter which can affect the stability of the liquid membrane Leepipatpiboon et al reported the influence of diluent polarity on the stability of liquid membrane in the HFSLM system for Co II and Ni II separation by using Alamine300 as the extractant and different diluents Their results demonstrated that high polarity polarity indexes ≥3 5 of diluents bring about high extraction performance

51 Yamin Dong Shun Li Xiang Su Yanliang Wang Yinglin Shen and Xiaoqi Sun Separation of thorium from rare earths with high performance diphenyl phosphate extractant Hydrometallurgy 2017 171 50

Impact of external operating parameters on the performance

The former supplies the main flow rate composed by a diluent species and oxygen while the latter supplies the fuel The fuel flow is partially diluted with an inert species to keep its velocity independent on the carbon/oxygen feed ratio The main oxidizer jet has momentum flux of 50–200 times higher than the fuel jet momentum

Solvometallurgy An Emerging Branch of Extractive

This position paper introduces the reader to the concept of solvometallurgy the term used to describe the extraction of metals from ores industrial process residues production scrap and urban waste using non aqueous solutions Here non aqueous is not used to imply anhydrous but rather a low water content The unit operations are as follows solvent leaching separation of the residue

The SACSESS Hydrometallurgy Domain An Overview

Abstract The EURATOM FP7 project SACSESS Safety of Actinide Separation Processes is in continuity of a long line of preceding EURATOM projects SACSESS is organised along four domains one of them related to the development of hydrometallurgical i e solvent extraction based actinide separations processes Within this domain the most promising processes developed in previous projects are

Comparative Study of Simultaneous Removal Performance of

Most of the surface reserves of copper minerals are oxidized while underground mining leads to rich silica–chalcopyrite–pyrite ore Based on the challenges of the twenty first century the bio hydrometallurgy processing is suggested as an alternative route to replace conventional techniques However the search for a sustainable metallurgy and/or more effective method to decrease

HydrometallurgyAcademic Accelerator

About Hydrometallurgy aims to compile studies on novel processes process design chemistry modelling control economics and interfaces between unit operations and to provide a forum for discussions on case histories and operational difficulties ics covered include leaching of metal values by chemical reagents or bacterial action at ambient or elevated pressures and temperatures

Kinetics and Mechanism of Copper Extraction with

The solubility of the extractant in the aqueous phase expressed in terms of the extractant distribution coefficient between the organic and aqueous phases was shown to exert a considerable influence on the kinetic performance of the extractants

Kinetics and Mechanism of Copper Extraction with

A rotating diffusion cell with a porous membrane was used to study the kinetics of liquid/liquid extraction of copper ions using commercially important acidic extractants i e dialkylphosphoric acids and hydroxyoximes The reaction zone is assumed to be situated in a thin zone of varying thickness within the aqueous diffusion layer but adjacent to the aqueous/organic interface

Hydrodesulfurization reactions of atmospheric gas oil over

Effect of boron addition on the activity and selectivity of hydrotreating CoMo/Al2O3 catalysts Applied Catalysis A General 1995 132 2 DOI 10 1016/X 95 Hidetaka Morishige Yoshio Akai Effect of Boron Addition on the State and Dispersion of

Minerals Engineering International Online

S Laki A A Shamsabadi A Kargari Comparative solvent extraction study of silver I by MEHPA and Cyanex 302 as acidic extractants in a new industrial diluent MIPS Hydrometallurgy Vol

Closing the Nuclear Fuel Cycle with a Simplified Minor

The process performance was validated using a genuine high burnup used nuclear fuel raffinate in a batch regime Separation factors of nearly 100 for 154 Eu over 241 Am were achieved

Current Status and Perspective of R D -Element

They shows bad effect in vitrification Performance of each separation process was confirmed Integration of total process is important Summary 14 industrial scale should be performed and then it become possible to proceed to active tests in the industrial scale Title

Application of ionic liquids in hydrometallurgy

2 1 Ionic Liquids Ionic liquids are basically a family of molten salts comprising organic cations and organic/inorganic anions While common ionic salts at room temperature exist as a solid where cations and anions are alternately packed ionic liquids have a lower melting point below 100 C because cations and anions are not packed due to their large difference in ionic size and the

Preparation of highly pure vanadyl sulfate electrolyte

The effect of EDTA amount on the separation between V IV and other impurities in the single stage extraction is shown in Fig 11 In the absence of EDTA the extraction percentage of Fe III is >96 higher than the V VI of 88 while the other metals are all below 15

27 Zeyuan Zhao Xiaoqi Sun Yamin Dong Synergistic effect of doped functionalized ionic liquids in silica hybrid material for rare earth adsorption Industrial Engineering Chemistry Research 2016 55 26

Application of Ionic Liquids in Hydrometallurgy

Ionic liquids low temperature molten salts have various advantages manifesting themselves as durable and environmentally friendly solvents Their application is expanding into various fields including hydrometallurgy due to their unique properties such as non volatility inflammability low toxicity good ionic conductivity and wide electrochemical potential window

Effect of Particle Size Refinement on the Leaching

The effects of particle size temperature and leaching time on the leaching behavior of rare earth elements were studied The leaching efficiency of the rare earth reached 39 24 under leaching conditions of hydrochloric acid concentration of 8 00 mol/L particle size 95 distributed below 1 5 μm leaching time of 120 min and temperature of 90 C

PDF Hydrometallurgy review Dr Abhilash

Hydrometallurgy review Dr Abhilash Related Papers 1 s2 0 SXmain By Dr Abhilash Mineral Processing and Extractive Metallurgy Review Overview On Extraction and Separation of Rare Earth Elements from Red Mud Focus on Scandium By Dr Abhilash