SPRAY-DRYING METHOD

PURPOSE:To obtain a spray-drying method by which particles after dried contain a very small amount of coarse particles. CONSTITUTION:Spray-dried particles are obtained in such a manner that a solid in a form of solution or dispersion liquid is sprayed from two or more nozzles 4 at the same time so t...

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Bibliographische Detailangaben
1. Verfasser:	KURODA SADAKI
Format:	Patent
Sprache:	eng
Schlagworte:	AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G BLASTING CHEMISTRY COMPOSITIONS BASED THEREON DRYING DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM GENERAL PROCESSES OF COMPOUNDING HEATING LIGHTING MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS MECHANICAL ENGINEERING METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-UP WEAPONS WORKING-UP
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Beschreibung
Zusammenfassung:	PURPOSE:To obtain a spray-drying method by which particles after dried contain a very small amount of coarse particles. CONSTITUTION:Spray-dried particles are obtained in such a manner that a solid in a form of solution or dispersion liquid is sprayed from two or more nozzles 4 at the same time so that liquid droplets are formed under drying conditions. The spray-drying is performed under such a drying condition that the distance from nozzle blow holes P to a contact point Q between spray cones formed by liquid droplets sprayed from different nozzles is at least a marginal water content accomplishing distance of spray-dried particles under the drying conditions. When this spray-drying drying method is applied to spray- drying of vinyl chloride polymer latex, vinyl chloride resin for paste of especially high quality can be produced.