Rheological Properties of an Alkoxide Derived Hlw Slurry Feed

MRS Proceedings ◽

10.1557/proc-32-163 ◽

1984 ◽

Vol 32 ◽

Author(s):

L. H. Cadoff ◽

D. Smith-Magowan ◽

D. E. Harrison ◽

J. M. Pope

Keyword(s):

Rheological Properties ◽

Metal Cations ◽

Waste Sludge ◽

Electrolyte Content ◽

Number Of Factors ◽

Slurry Viscosity

ABSTRACTCoagulation of HLW feed slurry can result from the interaction between acid metal cations and soluble silicates/silica. Feed slurry viscosity depend on a number of factors: (a) concentration and composition of the waste slurry electrolytes, (b) type and concentration of silica and silicate constituents in the glass former, (c) pH of the slurry feed, and (d) degree and order of mixing of the glass former with the waste sludge. Coagulation can be avoided by mixing to achieve a good dispersal of glass former globules in the waste slurry even when pH and electrolyte content favor it.

Download Full-text

The Influence of Rheology for Different Superplasticizer on High Alumina Low Cement Castable

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.174-177.579 ◽

2012 ◽

Vol 174-177 ◽

pp. 579-587

Author(s):

Ting Shu He ◽

Zhu Kai Li ◽

Xiao Yan Huang

Keyword(s):

Rheological Properties ◽

High Alumina ◽

Slurry Rheology ◽

Rotary Viscometer ◽

Slurry Viscosity

Fixed the composition of matrix slurry in low cement castable, added different additives such as STPP, KS-JS70, GLENIUX, Rheoplus, LMS-P, determined the slurry viscosity by using the NXS-11A rotary viscometer, analysised the rheological properties of the different matrix paste.Studies have shown that: there is a certain influence on the slurry rheology for different species and dosage, and there is the appropriate dosage. Analyzed the mechanisms of different admixtures on the rheological properties of slurry on theoretical.

Download Full-text

INFLUENCE OF pH AND PRECIPITATING AGENT ON THE REMOVAL OF HEAVY METAL CATIONS FROM INDUSTRIAL SAMPLES

June-2020 - International Journal of Engineering Sciences & Research Technology ◽

10.29121/ijesrt.v9.i10.2020.6 ◽

2020 ◽

Vol 9 (10) ◽

pp. 53-61

Keyword(s):

Heavy Metal ◽

Industrial Wastewater ◽

Metal Cations ◽

Chemical Precipitation ◽

Heavy Metal Cations ◽

Waste Sludge ◽

Wastewater Samples ◽

Electroplating Process ◽

Industrial Samples ◽

Influence Of Ph

The purpose of this research was to examine the influence of pH and type of precipitating agent on the removal of heavy metal cations from industrial wastewater samples by method of chemical precipitation. Three precipitating agents were used: Na2CO3, NaOH and waste sludge from the Solvay process. Samples of industrial wastewater, in which the presence of Cu (II) and Ni (II) was determined, have been taken from the electroplating process, and samples in which the presence of Zn (II) was determined, have been taken from the galvanizing process. The experimental results showed that the highest percentage of removal of these cations was at pH > 7 for each precipitant used, with NaOH proving to be the best precipitating agent, followed by Solway waste sludge and Na2CO3.

Download Full-text

Interaction between Poly(vinylidene fluoride) Binder and Graphite in the Anode of Lithium Ion Batteries: Rheological Properties and Surface Chemistry

MRS Proceedings ◽

10.1557/proc-730-v5.17 ◽

2002 ◽

Vol 730 ◽

Author(s):

Mikyong Yoo ◽

Curtis W. Frank

Keyword(s):

Rheological Properties ◽

Vinylidene Fluoride ◽

Chemical Properties ◽

Lithium Ion ◽

Composite Anode ◽

Film Properties ◽

Suspension Viscosity ◽

Poly Vinylidene Fluoride ◽

Slurry Viscosity ◽

Final Composite

AbstractWe describe here the interaction of poly(vinylidene fluoride) (PVDF) with graphite based on the rheological behavior of the slurries and the surface morphology of PVDF in the final composite anode. The rheological properties of slurries show the interaction between graphite and PVDF with the viscosity varying over six orders of magnitude for different graphite particles. We correlated the suspension viscosity with the final film properties. The homogeneity of the PVDF distribution in the final composite film increases as the slurry viscosity increases. The interaction between graphite and PVDF is altered through the chemical properties of polymer such as molecular weight and functionality, leading to an improved morphology of PVDF.

Download Full-text

Degree of MWCNT suspension dispersity and its influence on rheology of cement pastes

The proceedings of the 13th international conference "Modern Building Materials, Structures and Techniques" (MBMST 2019) ◽

10.3846/mbmst.2019.022 ◽

2019 ◽

Author(s):

Gintautas Skripkiunas ◽

Ekaterina Karpova ◽

Joana Bendoraitiene ◽

Irmantas Barauskas ◽

Rostislav Drochytka

Keyword(s):

Rheological Properties ◽

Cement Paste ◽

Rheological Behaviour ◽

Cement Pastes ◽

Number Of Factors ◽

Volume Coefficient ◽

Multi Walled Carbon Nanotubes ◽

Homogenization Methods ◽

Walled Carbon Nanotubes ◽

Polycarboxylate Ether

Modification of cement pastes by MWCNT (multi-walled carbon nanotubes) suspension enables to manage by their rheological properties due to the nanometer size of MWCNT. Dispersity degree of MWCNT suspension may be determined by the number of factors such as type and intensity of homogenization equipment, duration of homogenization and some other. The aim of present research consists in the establishment of optimal methodology of MWCNT suspension homogenization and investigation of dependence between dispersity degree of MWCNT suspension and rheological properties of cement pastes with that suspension. Two types of homogenization methods of MWCNT were tested such as ultrasonication and homogenization based on rotor-stator principle. The ultrasonication treatment about 6 min was established as optimal homogenization technique in the course of the current research. The yield stress and plastic viscosity of cement paste modified by MWCNT suspension increased in comparison with cement paste modified by polycarboxylate ether plasticizer (PCE) in 5 and 30 min after cement pastes mixing.Time of ultrasonication of MWCNT suspension more than 6 min did not have the influence on rheological behaviour of cement pastes.Addition of MWCNT decreased the volume coefficient of water bleeding of cement paste with PCE by 18%.

Download Full-text

The IBM-PC in electron microscopy

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100165525 ◽

1996 ◽

Vol 54 ◽

pp. 612-613

Author(s):

James F. Mancuso

Keyword(s):

Head Start ◽

Image Acquisition ◽

Cost Effective ◽

Financial Applications ◽

Number Of Factors ◽

Instrument Control ◽

The Cost ◽

Training And Support ◽

Control Image ◽

Ibm Pc

IBM PC compatible computers are widely used in microscopy for applications ranging from control to image acquisition and analysis. The choice of IBM-PC based systems over competing computer platforms can be based on technical merit alone or on a number of factors relating to economics, availability of peripherals, management dictum, or simple personal preference.IBM-PC got a strong “head start” by first dominating clerical, document processing and financial applications. The use of these computers spilled into the laboratory where the DOS based IBM-PC replaced mini-computers. Compared to minicomputer, the PC provided a more for cost-effective platform for applications in numerical analysis, engineering and design, instrument control, image acquisition and image processing. In addition, the sitewide use of a common PC platform could reduce the cost of training and support services relative to cases where many different computer platforms were used. This could be especially true for the microscopists who must use computers in both the laboratory and the office.

Download Full-text