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CN106881099B 丁烯氧化脱氢制备丁二烯的催化剂、其制备方法和用途 有权

丁烯氧化脱氢制备丁二烯的催化剂、其制备方法和用途
摘要：
公开了丁烯氧化脱氢制备丁二烯的催化剂、其制备方法和用途。所述催化剂具有如下结构通式，其中，M选自V、Cr、Mn、Fe、Co、Ni、Cu或其两种或更多种以任意比例的混合物；N选自Na、K、Cs或其两种或更多种以任意比例的混合物；x＝0.5～20；y＝0.05～20；z＝0.01～5；a是满足各原子价态的数；所述催化剂是用如下方法制得的：(1)按照上述通式的组分比例分别溶解元素Mo、Bi、M和N金属的前驱体化合物，再将Bi、M、N金属的前驱体溶液加入到Mo的前驱体溶液中，然后老化浆料：(2)向经老化的浆料中加入尿素溶液，以摩尔计，尿素的量与浆料中Bi与M元素量和之比为0.2‑10，并再次老化；(3)加入石墨后造粒、压片、焙烧，得到催化剂。BiMoxMyNzOa。
摘要（英）：

The invention discloses a catalyst for preparing butadiene by oxidative dehydrogenation of butene, a preparation method and an application thereof. The catalyst has the following structural general formula, wherein M is selected from V, Cr, Mn, Fe, Co, Ni, Cu or a mixture of two or more of V, Cr, Mn, Fe, Co, Ni and Cu in any proportion; N is selected from Na, K, Cs or a mixture of two or more of Na, K and Cs in any proportion; x is equal to 0.5-20; y is equal to 0.05-20; z is equal to 0.01-5; and a is a number meeting the valence state of each atom; the catalyst is prepared by the following steps: (1) separately dissolving precursor compounds of the elements Mo, Bi, M and N metal according to the component proportion of the general formula, adding the precursor solution of the Bi, M and N metal into the precursor solution of the Mo, and then aging the pulp; (2) adding an urea solution into the aged pulp, wherein in terms of mole, the ratio of the amount of the urea to the sum of the amounts of Bi and M in the pulp is 0.2-10; and conducting aging again: (3) adding graphite, and conducting granulating, tabletting and roasting to obtain the catalyst, BiMoxMyNzOa.

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