Method for removal of iron impurity from pyrophyllite

The present invention provides a method for removing iron impurities from pyrophyllite, including the steps of: (a) pulverizing and sieving pyrophyllite to prepare powder having a controlled particle size; (b) separating a magnetic product and a nonmagnetic product by magnetically selecting the powd...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	HONG GILSANG, BAE IN KOOK, KIM SANG BAE, WAN TAE KIM, SEO JOOBEOM
Format:	Patent
Sprache:	eng ; kor
Schlagworte:	CHEMISTRY FERROUS OR NON-FERROUS ALLOYS MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLIDMATERIALS OR FLUIDS MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROMSOLID MATERIALS OR FLUIDS METALLURGY PERFORMING OPERATIONS PRETREATMENT OF RAW MATERIALS PRODUCTION AND REFINING OF METALS SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATICTABLES OR JIGS TRANSPORTING TREATMENT OF ALLOYS OR NON-FERROUS METALS
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Beschreibung
Zusammenfassung:	The present invention provides a method for removing iron impurities from pyrophyllite, including the steps of: (a) pulverizing and sieving pyrophyllite to prepare powder having a controlled particle size; (b) separating a magnetic product and a nonmagnetic product by magnetically selecting the powder; (c) roasting the nonmagnetic product to form a roasted product; and (d) separating and discharging the magnetic product by magnetically selecting the roasted product. 본 발명은 (a) 납석을 파쇄하고 체가름하여 입도가 조절된 분체를 준비하는 단계; (b) 상기 분체를 자력선별하여 자성산물과 비자성산물을 분리 산출하는 단계; (c) 상기 비자성산물을 배소하여 배소산물을 형성하는 단계; 및 (d) 상기 배소산물을 자력선별하여 자성산물을 분리 배출하는 단계;를 포함하는 납석의 철 불순물 제거방법을 제공한다.