Size-selective separation of submicron particles in suspensions with ultrasonic atomization
Aqueous suspensions containing silica or polystyrene latex were ultrasonically atomized for separating particles of a specific size. With the help of a fog involving fine liquid droplets with a narrow size distribution, submicron particles in a limited size-range were successfully separated from sus...
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| Veröffentlicht in: | Ultrasonics sonochemistry 2014-11, Vol.21 (6), p.2032-2036 |
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| container_title | Ultrasonics sonochemistry |
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| creator | SUSUMU NII OKA, Naoyoshi |
| description | Aqueous suspensions containing silica or polystyrene latex were ultrasonically atomized for separating particles of a specific size. With the help of a fog involving fine liquid droplets with a narrow size distribution, submicron particles in a limited size-range were successfully separated from suspensions. Performance of the separation was characterized by analyzing the size and the concentration of collected particles with a high resolution method. Irradiation of 2.4MHz ultrasound to sample suspensions allowed the separation of particles of specific size from 90 to 320nm without regarding the type of material. Addition of a small amount of nonionic surfactant, PONPE20 to SiO2 suspensions enhanced the collection of finer particles, and achieved a remarkable increase in the number of collected particles. Degassing of the sample suspension resulted in eliminating the separation performance. Dissolved air in suspensions plays an important role in this separation. |
| doi_str_mv | 10.1016/j.ultsonch.2014.03.033 |
| format | Article |
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With the help of a fog involving fine liquid droplets with a narrow size distribution, submicron particles in a limited size-range were successfully separated from suspensions. Performance of the separation was characterized by analyzing the size and the concentration of collected particles with a high resolution method. Irradiation of 2.4MHz ultrasound to sample suspensions allowed the separation of particles of specific size from 90 to 320nm without regarding the type of material. Addition of a small amount of nonionic surfactant, PONPE20 to SiO2 suspensions enhanced the collection of finer particles, and achieved a remarkable increase in the number of collected particles. Degassing of the sample suspension resulted in eliminating the separation performance. Dissolved air in suspensions plays an important role in this separation.</description><identifier>ISSN: 1350-4177</identifier><identifier>EISSN: 1873-2828</identifier><identifier>DOI: 10.1016/j.ultsonch.2014.03.033</identifier><identifier>PMID: 24798229</identifier><language>eng</language><publisher>Kidlington: Elsevier</publisher><subject>Chemistry ; Colloidal state and disperse state ; Exact sciences and technology ; General and physical chemistry ; Physical and chemical studies. Granulometry. Electrokinetic phenomena ; Physical chemistry of induced reactions (with radiations, particles and ultrasonics) ; Ultrasonic chemistry</subject><ispartof>Ultrasonics sonochemistry, 2014-11, Vol.21 (6), p.2032-2036</ispartof><rights>2015 INIST-CNRS</rights><rights>Copyright © 2014 Elsevier B.V. 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With the help of a fog involving fine liquid droplets with a narrow size distribution, submicron particles in a limited size-range were successfully separated from suspensions. Performance of the separation was characterized by analyzing the size and the concentration of collected particles with a high resolution method. Irradiation of 2.4MHz ultrasound to sample suspensions allowed the separation of particles of specific size from 90 to 320nm without regarding the type of material. Addition of a small amount of nonionic surfactant, PONPE20 to SiO2 suspensions enhanced the collection of finer particles, and achieved a remarkable increase in the number of collected particles. Degassing of the sample suspension resulted in eliminating the separation performance. Dissolved air in suspensions plays an important role in this separation.</description><subject>Chemistry</subject><subject>Colloidal state and disperse state</subject><subject>Exact sciences and technology</subject><subject>General and physical chemistry</subject><subject>Physical and chemical studies. Granulometry. 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| ispartof | Ultrasonics sonochemistry, 2014-11, Vol.21 (6), p.2032-2036 |
| issn | 1350-4177 1873-2828 |
| language | eng |
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| source | Elsevier ScienceDirect Journals |
| subjects | Chemistry Colloidal state and disperse state Exact sciences and technology General and physical chemistry Physical and chemical studies. Granulometry. Electrokinetic phenomena Physical chemistry of induced reactions (with radiations, particles and ultrasonics) Ultrasonic chemistry |
| title | Size-selective separation of submicron particles in suspensions with ultrasonic atomization |
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