METHOD FOR SYNTHESIS OF LaFCO3 POWDER USING LANTHANUM SALT AND FIUORIDE SALT AND METHOD FOR SYNTHESIS OF LaOF POWDER USING THE SAME

A method for synthesizing LaFCO3 powders using lanthanum salt and fluorinated salt, and a method for synthesizing LaOF powders using the same. The method for synthesizing LaFCO3 powders according to the present invention comprises: (a) a step of producing a mixed solution containing lanthanum salt,...

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Hauptverfasser:	YUN, JONG HUN, WOO, DONG CHAN, JUNG, WOO SIK, LEE, GUN WOO
Format:	Patent
Sprache:	eng ; kor
Schlagworte:	ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAININGELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN,SULFUR, SELENIUM OR TELLURIUM CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CHEMISTRY COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM,CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THERARE-EARTH METALS INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OFSOLID INORGANIC COMPOUNDS INORGANIC CHEMISTRY METALLURGY ORGANIC CHEMISTRY PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL SEPARATION THEIR RELEVANT APPARATUS TRANSPORTING
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Beschreibung
Zusammenfassung:	A method for synthesizing LaFCO3 powders using lanthanum salt and fluorinated salt, and a method for synthesizing LaOF powders using the same. The method for synthesizing LaFCO3 powders according to the present invention comprises: (a) a step of producing a mixed solution containing lanthanum salt, fluorinated salt and urea; (b) a step of producing LaFCO3 as intermediate products by making the mixed solution react; and (c) a step of obtaining LaFCO3 powders from a remained solution by centrifuging or filtering a solution containing the intermediate products. The method for synthesizing LaOF powders produces the LaOF powders by the calcination of LaFCO3 manufactured by the method for synthesizing LaFCO3 powders. [Reference numerals] (AA) Start;(BB) End;(S110) Manufacture a mixed solution containing lanthanum salt, fluorinated salt and urea;(S120) Produce intermediate products (LaFCO_3) by making the mixed solution react;(S130) Obtain precipitates by centrifuging or filtering a solution containing the intermediate products (LaFCO_3);(S140) Produce LaOF powders by the calcination of the precipitates (LaFCO_3)