METHOD FOR PREPARING ZINC FERRITE-BASED CATALYSTS AND METHOD FOR PREPARING BUTADIENE USING THE SAME

A preparation method of a zinc ferrite-based catalyst according to one exemplary embodiment of the present application comprises: a step of co-precipitating an aqueous precursor solution including a zinc precursor and a ferrite precursor in contact with an aqueous basic solution; a step of performin...

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Bibliographic Details
Main Authors KIM CHANSOO, LEE JOOHYUCK, KO DONG HYUN, CHA KYONG YONG
Format Patent
LanguageEnglish
Korean
Published 15.04.2022
Subjects
ACYCLIC OR CARBOCYCLIC COMPOUNDS
CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY
CHEMISTRY
METALLURGY
ORGANIC CHEMISTRY
PERFORMING OPERATIONS
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
THEIR RELEVANT APPARATUS
TRANSPORTING
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Summary:A preparation method of a zinc ferrite-based catalyst according to one exemplary embodiment of the present application comprises: a step of co-precipitating an aqueous precursor solution including a zinc precursor and a ferrite precursor in contact with an aqueous basic solution; a step of performing a drying process and a firing process to form a solid sample; and a step of coating the solid sample on a support, wherein the zinc precursor comprises zinc nitrate, the ferrite precursor comprises ferrite nitrate, and the pH of a co-precipitation solution after the co-precipitation step is 6.5 to 7.8 or 8.7 to 9.2. 본 출원의 일 실시상태에 따른 아연 페라이트계 촉매의 제조방법은, 아연 전구체 및 페라이트 전구체를 포함하는 전구체 수용액을 염기성 수용액과 접촉시켜 공침시키는 단계; 건조공정 및 소성공정을 수행하여 고체 시료를 형성하는 단계; 및 지지체에 상기 고체 시료를 코팅시키는 단계를 포함하고, 상기 아연 전구체는 아연 질산염을 포함하고, 상기 페라이트 전구체는 페라이트 질산염을 포함하며, 상기 공침시키는 단계 이후의 공침 용액의 pH는 6.5 내지 7.8, 또는 8.7 내지 9.2 이다.
Bibliography:Application Number: KR20200130318