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2 edition of High speed electrodeposition using fluidised beds found in the catalog.

High speed electrodeposition using fluidised beds

M. J. P. McBurney

High speed electrodeposition using fluidised beds

by M. J. P. McBurney

  • 248 Want to read
  • 6 Currently reading

Published .
Written in English


Edition Notes

Thesis(Ph.D.) - Loughborough University of Technology 1978.

Statementby M.J.P. McBurney.
ID Numbers
Open LibraryOL21410571M

The release of nanosized particles from fluidized beds of ceramic oxide nanopowders, namely, TiO 2 (P25), Al 2 O 3 (AluC) and SiO 2 (A) has been assessed for the first time. Previous models and experiments for processing engineered nanoparticles (ENP) using fluidized beds reported only the formation of micron-sized cluster agglomerates in the gas phase. The computations agree with observations made by high‐speed motion pictures and with measurements of radial solids concentrations and velocities. In the dense regime, corresponding to volume fractions of about 10%, a core‐annulus type of regime is obtained, with solids descending down at the wall.

The use of a fluidized bed dryer to dry acrylo­ nitrile-butadiene-styrene terpolymer was studied. Data for fluidtzed bed drying were obtained from the Monsanto Company's fluid bed dryer. Fluid bed theory, drying phenomena, and fluid bed drying limitations were . If the particles in the bed are loose and there is sufficient volume in the device containing the particles, the particles may fluidize at high flow rates. Fluidized beds are used extensively in the chemical process industries, particularly for the cracking of high-molecular-weight petroleum fractions.

Electrophoretic deposition (EPD), is a term for a broad range of industrial processes which includes electrocoating, cathodic electrodeposition, anodic electrodeposition, and electrophoretic coating, or electrophoretic painting.A characteristic feature of this process is that colloidal particles suspended in a liquid medium migrate under the influence of an electric field (electrophoresis) and. High-Output Fluidized Bed Polyethylene Technology Process Economics Program Report A. Published June This report deals with the technology and operating economics of producing linear low-density polyethylene (LLDPE) by high-output, gas-phase fluidized-bed technologies. In commercial practice, gas-phase plants are dedicated to the.


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High speed electrodeposition using fluidised beds by M. J. P. McBurney Download PDF EPUB FB2

High speed electrodeposition using fluidised beds Author: McBurney, Michael J. : Michael J. McBurney. High speed electrodeposition using fluidised beds. By Michael J. McBurney. Download PDF (14 MB) Abstract. A Doctoral Thesis. Submitted in partial fulfillment of the requirements for the award of Doctor of Philosophy of Loughborough relevant literature, relating to electrochemical cells, mass transfer, fluidised beds and mass Author: Michael J.

McBurney. Mass transfer from a fluidized bed electrolyte containing inert particles has been found to depend on bed porosity and particle size. The optimum porosity was found to vary from – with decreasing particle size but mass transport increased with particle size.

A mass transfer entry length effect was observed on the cylindrical cathode but its position within the bulk of the bed was Cited by:   The effective resistivity of the discontinuous metal phase in a fluidized bed copper electrode is derived from measurements of the potential distribution in the solution.

The values are similar to those which have been previously observed for a fluidized bed of silver-coated particles and are compared with a theoretical expression based on a model of charge sharing during single particle Cited by:   FLUIDIZED-BED ELECTRODEPOSITION OF HEAVY NON-FERROUS METALS S.L.

Tsapakh and L.V. Volkov Institute Gipronickel, Grazhdansky prospect, 11 Leningrad, USSR, ABSTRACT An analysis of the advantages of using fluidized-bed electrode cells for the production of heavy non-ferrous metals, as compared with traditional processes, is : S.L.

Tsapakh, L.V. Volkov. Fluidized Bed Technology: Principles and Applications presents the essential facts about beds of solid particles when fluidized by gases, and explains how the technology has been applied to yield fluidized bed boilers, furnaces, heat recovery systems and process s: 4.

conditions, and are realized in agitated reactors or in fluidized beds. The use of high temperature and/or high pressure during conversion and handling of high viscosity materials and/or viscosity ratios results in extreme processing conditions for which the multiphase process hydrodynamics are completely unknown.

the fluidized bed. Due to the opaque nature of a fluidized bed system, noninvasive X-ray techniques are often used to visualize and obtain valuable data regarding the internal flow structures of the fluidized material.

This research determines how fluidized bed hydrodynamics are influenced by different experimental conditions. Shimizu, in Fluidized Bed Technologies for Near-Zero Emission Combustion and Gasification, Abstract: Pressurized fluidized bed combustors (PFBCs) are fluidized bed combustors (FBCs) operated at elevated pressures.

The high-temperature and high-pressure flue gas from a PFBC can drive a gas turbine to obtain mechanical energy in addition to the steam turbine, thus higher efficiency can. Hays, R., et al.

Small Particles Cluster Formation in Fluidized Beds and its Effect on Entrainment. in Circulating Fluidized Bed IX. Hamburg, Germany: TuTech Innovation GmbH.

Freeman, R., Measuring the flow properties of consolidated, conditioned and aerated powders — A comparative study using a powder rheometer and a rotational shear cell.

Fluidized bed dryer (also called fluid bed dryer) is a kind of equipment used extensively in the pharmaceutical industries to reduce the moisture content of pharmaceutical powder and granules.

The equipment works on a principle of fluidization of the feed materials. FLUIDIZED-BED ELECTRODEPOSITION OF HEAVY NON-FERROUS METALS. , DOI: /B Boian S. Boyanov, John D.

Donaldson, Susan M. Grimes. Removal of copper and cadmium from hydrometallurgical leach solutions by fluidised bed. THE possibility of using fluidized bed electrodes for simplifying engineering problems encountered in scaling up electrochemical processes from a laboratory to a plant scale has been the subject.

This study shows the effect of using different inorganic salts as accelerators for copper electrodeposition. High deposition rate is attributed to enhanced mass transport of. Download Citation | Heavy metal removal from simulated wastewater using electrochemical technology: optimization of copper electrodeposition in a membraneless fluidized bed electrode | Heavy metal.

In gas–solid circulating fluidized beds, particle velocity and solids flux are crucial parameters for understanding the gas–solid interaction. In the literature, the time-average information has been investigated intensely, but the analysis of instantaneous information remains lacking.

In this work, flow behavior in a narrow rectangular circulating fluidized bed has been recorded using a. a fluidized-bed regenerator. Fluidized beds typically are more complex to design, build, and operate than other types of reactors, such as packed-bed and stirred-tank reactors.

Scaleup of fluidized beds can be difficult (1). Fluidized beds are prone to erosion and particle attrition caused by the moving particles. Solids. Uses of Fluidized bed Fluidized beds are used for several purposes, such as fluidized bed reactors (types of chemical reactors), fluid catalytic cracking, fluidized bed combustion, heat or mass transfer or interface modification, such as applying a coating onto solid items.

The particle behaviour in a heat treatment fluidised bed was studied by the analysis of particle images taken with a high speed CCD digital video camera.

The comparison of particle dynamics was performed for the fluidised beds without part, with single part and with multi-parts. The results show that there are significant differences in particle behaviours both in different beds and at. A fluidized bed is a physical phenomenon occurring when a quantity of a solid particulate substance (usually present in a holding vessel) is placed under appropriate conditions to cause a solid/fluid mixture to behave as a is usually achieved by the introduction of pressurized fluid through the particulate medium.

This results in the medium then having many properties and. Use of Alkali-Feldspar as Bed Material for Upgrading a Biomass-derived Producer Gas from a Gasifier. Resubmitted after review to Chemical Engineering Journal, 7. Theresa Berdugo Vilches, Jelena Marinkovic, Martin Seemann. Comparing bed materials in a 2–4-MWth dual fluidized bed biomass gasifier - sand, olivine, bauxite and ilmenite.• Use scientific notation and data collected during the electrodeposition process to learn if you have created a nanoscale thin layer of zinc metal.

Note:The last goal involves an 8-step series of calculations using numbers like x electrons per Coulomb and x meters.Fluid-bed spray-drying also offers lower operating costs and shorter process limes compared with freeze-drying. Tangential Spray Fluid Bed Granulation The second fluid-bed technique for wet granulation is the tangential-spray (rotary) process, available since the early .