BISMUTH MOLYBDATE-BASED CATALYSTS, METHOD OF PREPARING THEREOF AND METHOD OF PREPARING 1,3-BUTADIENE USING THEREOF
申请人:Oh Seung Hoon
公开号:US20090088594A1
公开(公告)日:2009-04-02
This invention relates to a bismuth molybdate catalyst, a preparation method thereof, and a method of preparing 1,3-butadiene using the same, and to a bismuth molybdate catalyst, a preparation method thereof, and a method of preparing 1,3-butadiene using the same, in which 1,3-butadiene can be prepared through oxidative dehydrogenation directly using a C4 mixture including n-butene and n-butane as a reactant in the presence of a mixed-phase bismuth molybdate catalyst including α-bismuth molybdate (Bi2Mo3On) and γ-bismuth molybdate (Bi2MoO6). According to this invention, the C4 raffinate, containing many impurities, is used as a reactant, without an additional n-butane separation process, thus obtaining 1,3-butadiene at high yield. Unlike complicated multicomponent-based metal oxides, the catalyst of the invention has simple constituents and synthesis routes, and can be easily formed through physical mixing, and thus is very advantageous in assuring reproducibility and can be directly applied to commercial processes.
本发明涉及一种铋钼酸催化剂及其制备方法,以及使用该催化剂制备1,3-丁二烯的方法。其中,可以在α-铋钼酸(Bi2Mo3On)和γ-铋钼酸(Bi2MoO6)的混相铋钼酸催化剂存在下,直接使用包括n-丁烯和n-丁烷的C4混合物作为反应物进行氧化脱氢,制备1,3-丁二烯。本发明使用C4副产物作为反应物,无需进行额外的n-丁烷分离过程,从而高产率地获得1,3-丁二烯。与复杂的多组分金属氧化物不同,本发明的催化剂成分简单,合成路线简单,可以通过物理混合轻松形成,因此在保证再现性方面非常有优势,并且可以直接应用于商业过程中。