Separation of Submicron Particles by Hetero - Coagulation
نویسندگان
چکیده
It is necessary to utilize special techniques of separating submicron-size particles from other micron-size particles such as hydrocyclone and liquid-liquid separating. In this experimental work, separation of TiO2 and Al(OH)3 artificial mixture was investigated. Separation of submicron TiO2 particles from micron Al(OH)3 particles was carried out using a column bed filled with plastic fiber tubes or glass balls as matrixes. The Al(OH)3 particles have been mainly captured on the matrixes due to the hetero-coagulation effect. Large particles could be easily attached on matrixes because of strong lift force, and surface interactions between particle and matrix. The submicron TiO2 have been flowed out from the apparatus because of low collision possibility with the matrixes. As a result, submicron TiO2 particles were separated from micron size Al(OH)3 ones. This method could be applied to separate submicron TiO2 particles from Brazilian clay.
منابع مشابه
Mathematical Model for Separation of Submicron Particles from Gas Stream in a Conduit Type Scrubber (RESEARCH NOTE).
A mathematical model has been developed for the prediction of the collection efficiency of submicron particles in the conduit type scrubber. The model has been tested with the data in the literature [1,3].
متن کاملTHE FEASIBILITY STUDY OF W-Cu COMPOSITE PRODUCTION BY SUBMICRON PARTICLES ADDITION AND INFILTRATION
In this paper the feasibility of fabricating controlled porous skeleton of pure tungsten at low temperature by addition of submicron particles to tungsten powder (surface activated sintering) has been studied and the best parameters for subsequent infiltration of Cu were acquired. The effects of addition of submicron particles and sintering temperature on porous as well as infiltrated samples w...
متن کاملSeparation of submicron bioparticles by dielectrophoresis.
Submicron particles such as latex spheres and viruses can be manipulated and characterized using dielectrophoresis. By the use of appropriate microelectrode arrays, particles can be trapped or moved between regions of high or low electric fields. The magnitude and direction of the dielectrophoretic force on the particle depends on its dielectric properties, so that a heterogeneous mixture of pa...
متن کاملDetermination of the size distribution of monodesperse and bidisperse mixtures of spherical particles in the nanometer and submicron size range by applying cumulant analysis and contin algorithm in dynamic light scattering
Determination of particle size is one of the major needs in the industry and biotechnology. Dynamic light scattering (DLS) is a widely used technique for determining size distribution of spherical particle in nanometer and submicron size range. In this method, there are different algorithms for determining the size and size distribution of particles, which are selected according to the required...
متن کاملSubmicron separation of microspheres via travelling surface acoustic waves.
Submicron separation is the segregation of particles having a diameter difference of less than one micrometre. We present an acoustofluidic particle separator with submicron separation resolution to study the continuous, label-free, and contactless separation of polystyrene (PS) particles based on their acoustofluidic parameters such as size, density, compressibility and shape. In this work, th...
متن کامل