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    • 9. 发明授权
    • 아연 페라이트 촉매, 이의 제조방법 및 이를 이용한1,3-부타디엔의 제조방법
    • 锌铁素体催化剂及其制备方法及其制备1,3-丁二烯的方法
    • KR100847206B1
    • 2008-07-17
    • KR1020070045499
    • 2007-05-10
    • 에스케이이노베이션 주식회사
    • 정영민이성준김태진오승훈김용승송인규김희수정지철이호원
    • B01J23/80B01J23/74B01J23/06C07C5/333
    • B01J23/80B01J23/002B01J35/002B01J37/031B01J2523/00C07C5/3332C07C2523/80C07C11/167B01J2523/27B01J2523/842
    • A preparation method is provided to prepare a zinc ferrite catalyst of which components are simple, and which is synthesized easily and advantageous in securing of reproducibility as a catalyst for producing 1,3-butadiene, and a method of producing 1,3-butadiene by performing an oxidative dehydrogenation on the zinc ferrite catalyst by directly using a C4 mixture as a reactant without performing an additional separation process is provided. A method of preparing a zinc ferrite catalyst for the production of 1,3-butadiene comprises the steps of: (a) dissolving a zinc precursor and an iron precursor into distilled water; (b) adjusting a pH range of a coprecipitation solution to 6 to 10 while mixing a basic solution with a mole concentration of 1.5 to 4.0 with the aqueous precursor solution; (c) filtering the pH-adjusted mixed solution to obtain a solid catalyst; (d) drying the solid catalyst at 70 to 200 deg.C; and (e) heat-treating the dried catalyst at 350 to 800 deg.C. A method of producing 1,3-butadiene comprises the steps of: (a) providing a mixed gas of a C4 mixture, air, and steam as a reactant; (b) performing an oxidative dehydrogenation by continuously passing the reactant through a catalyst layer to which the zinc ferrite catalyst for the production of 1,3-butadiene is fixed; and (c) obtaining 1,3-butadiene. Further, an atomic ratio of Fe/Zn of the zinc precursor and the iron precursor is 1.5 to 2.5, and the basic solution is sodium hydroxide.
    • 提供一种制备方法,其制备成分简单的锌铁氧体催化剂,其易于且有利于确保作为生产1,3-丁二烯的催化剂的再现性,以及通过以下方法制备1,3-丁二烯: 提供了通过直接使用C4混合物作为反应物而在铁酸锌催化剂上进行氧化脱氢而不进行额外的分离工艺。 制备1,3-丁二烯的铁酸锌催化剂的制备方法包括以下步骤:(a)将锌前体和铁前体溶解在蒸馏水中; (b)将共沉淀溶液的pH范围调节至6至10,同时用前驱体溶液混合摩尔浓度为1.5至4.0的碱性溶液; (c)过滤pH调节的混合溶液以获得固体催化剂; (d)在70〜200℃干燥固体催化剂; 和(e)在350至800℃下热处理干燥的催化剂。 制备1,3-丁二烯的方法包括以下步骤:(a)提供C4混合物,空气和蒸汽的混合气体作为反应物; (b)通过使反应物连续通过固定用于生产1,3-丁二烯的铁酸锌催化剂的催化剂层进行氧化脱氢; 和(c)获得1,3-丁二烯。 此外,锌前体和铁前体的Fe / Zn的原子比为1.5〜2.5,碱性溶液为氢氧化钠。