Song Chongli

Tsinghua University

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Study on the Performance of Air-lift Pumps

Huaxue fanying gongcheng yu gongyi (2003)

Song Chongli

In this paper, the performance of air-lift pumps is studied for water, simulating high-level-liquid-waste and 30%(ratio of volume) trialkylphosphine oxide (TRPO)-kerosene solution which are lift in the tube height of 6.2m. The relation between the used gas flow rate and the conveyed liquid flow rate is satisfied for the one-dimensional model given by Parker. Furthermore, the effect of the diameter of conveying tube, the surface stress and viscosity of the conveyed liquid on the characteristic parameters, such as slip velocity S and friction parameter, K, has been discussed in detail.

Lift (data mining)

Kerosene

Source

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Citations (1)

THE EXTRACTION AND STRIPPING BEHAVIOR OF HEPTAVALENT TECHNETIUM WITH TRIALKYL PHOSPHINE OXIDE

Solvent Extraction and Ion Exchange (2001)

Xiaogui Feng Song Chongli

The solvent extraction of heptavalent technetium (Tc(VII)) from aqueous nitric acid by trialkyl phosphine oxide (TRPO) in kerosene has been studied. The effects of HNO3 and TRPO concentrations and temperature on the extraction of Tc(VII) were investigated. The extraction was found to proceed according to the reaction H+ + TcO4 − + 2TRPO = HTcO4 · 2TRPO. The extraction enthalpy (Δ H), entropy (Δ S c), Gibbs free energy (Δ G c), and the apparent equilibrium constant (K c) for the reaction are presented. Tc(VII) can also be effectively extracted from alkaline solution, but the distribution coefficient decreases with a decrease of alkalinity. A minimum value of the distribution coefficient of Tc(VII) appears at a pH value near 10. The Tc(VII) loaded in TRPO–kerosene can be efficiently stripped by deionized water, ≤0.1 g/L (NH4)2CO3, or ≤1 g/L Na2CO3. Tc(VII) can be completely removed from highly active waste.

Phosphine oxide

Kerosene

Diluent

Nitric acid

Alkalinity

10.1081/sei-100001373

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Citations (5)

Extracting Performance of Cesium by 25,27‐Bis(2‐Propyloxy) Calix[4]‐26,28‐Crown‐6 (iPr‐C[4]C‐6) in n‐octanol

Separation Science and Technology (2005)

Jianchen Wang Xiaowen Zhu Song Chongli

Abstract In this work, the extraction of cesium(Cs+) in nitric acid and in a simulated high level liquid waste (HLLW) by iPr‐C[4]C‐6 was investigated in the diluent n‐octanol. The slope of the extractant dependency equals 1, indicating that the complex has 1∶1[Cs+ · iPr‐C[4]C‐6]Cs+ to ligand. 0.025 mol/L iPr‐C[4]C‐6 in n‐octanol (abbreviated to iPr‐C[4]C‐6‐n‐octanol) has a stronger extracting ability to Cs when acidities are between 1.0 mol/L and 4.0 mol/L. The stripping properties of Cs loading in 0.025 mol/L iPr‐C[4]C‐6‐n‐octanol was studied. Cs loading in iPr‐C[4]C‐6‐n‐octanol can be stripped easily into the aqueous phase because the distribution ratios of Cs are lower than 0.5 when pH is between 2 and 10 in the aqueous phase. On the above basis, the better parameters were selected and the cold cascade test for removing Cs from the simulated HLLW was investigated on miniature centrifugal contactor. The results of the test are attractive. The removing ratio of Cs from the simulated HLLW is 99.5% and the stripping ratio of Cs loading in 0.025 mol/L iPr‐C[4]C‐6‐n‐octanol is 99.2%. The results show that 0.025 mol/L iPr‐C[4]C‐6‐n‐octanol is an effective process for removing Cs from HLLW.

Octanol

Stripping (fiber)

Diluent

Nitric acid

Data scrubbing

Aqueous two-phase system

Caesium

Liquid–liquid extraction

Contactor

10.1080/01496390500423730

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Citations (24)

Study on the extraction characteristics of Fe(III) with trialkylphosphine oxide

Qi‐Wei Zhang Jiao Rongzhou Song Chongli

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Citations (0)

THE REMOVAL OF RADIOACTIVITY FROM THE LANTHANUM OXIDE

Elsevier eBooks (1985)

Zhu Yonglun Meng Zugui Jinming Xu Liang Junfu Wei Zhang

Lanthanum

Lanthanum oxide

10.1016/b978-0-12-767661-6.50166-1

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Citations (1)

The Analysis of Valence State of Np and Pu in Chinese High‐Level Liquid Waste

Solvent Extraction and Ion Exchange (2006)

Liang Junfu Xuegang Liu Song Chongli

Abstract The valence states of neptunium and plutonium in simulated and genuine Chinese high‐level liquid waste (HLLW) have been studied by solvent extraction. A TRPO process has been developed in our laboratory in recent years in which 30% TRPO‐kerosene was used as extractant. This process demonstrates good extraction efficiency for neptunium as well as uranium, plutonium, and americium. A countercurrent solvent extraction experiment with genuine HLLW has been carried out with 16 stages of centrifugal extractors. The results of valence state experiments showed that the neptunium and plutonium were mainly in the tetravalent state respectively. It is not necessary to regulate the valence state of neptunium before HLLW treatment by the Chinese TRPO process.

Neptunium

PUREX

Nuclear fuel cycle

Nuclear reprocessing

Transuranium element

10.1080/07366290600762553

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Citations (0)

Recent developments in the extraction separation method for treatment of high-level liquid waste

Nuclear Instruments and Methods in Physics Research Section B Beam Interactions with Materials and Atoms (2000)

Jiao Rongzhou Song Chongli Yongjun Zhu

Separation (statistics)

Separation method

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Citations (0)

The preliminary study of high-level radioactive sludge. Pt.1: Preparation and property study of simulated high-level radioactive sludge

He huaxue yu fangshe huaxue (2000)

Liang Junfu Song Chongli Cuiling Pan Ding Ge-long Yang Wenjie

High-level waste

Source

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Citations (0)

RESEARCH ON THE NAVIGATION SAFETY EVALUATION OF SHIP

Journal of Guangzhou Maritime College (2008)

Song Chongli

GIS(Graphic Information System),with high efficient ability on managing and analyzing special data,has been widely used in navigation field,and what's more,it takes important part in the navigation safety of ship.The thesis made up special evaluation on the area.

Maritime safety

Area navigation

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Citations (0)

THE EXPERIMENTAL STUDIES ON THE MASS-TRANSFER MODEL OF CESIUM ION EXCHANGE WITH POTASSIUM TITANIUM HEXACYANOFERRATE

Ion Exchange and Adsorption (2006)

Song Chongli

A mass-transfer model of cesium ion exchange with potassium titanium hexacyanoferrate from nitric acid solution has been developed by combining the ion exchange isothermal equation obtained using static method with the mass-transfer coefficient obtained using shallow-bed techniques. The data of the height of exchange zone and the concentration distribution measured by the experiment are in good agreement with those predicted by the mass-transfer model.

Caesium

Nitric acid

Isothermal process

Mass transfer coefficient

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