公开(公告)号：US09573119B2

公开(公告)日：2017-02-21

申请号：US14859751

申请日：2015-09-21

Applicant: EASTMAN CHEMICAL COMPANY

Inventor： Liu Deng ,  David William Norman ,  Gerald Charles Tustin ,  Bharat Venkata Boppana ,  Melissa Page Steffey

IPC: C07C51/377 ,  B01J27/198 ,  B01J37/03 ,  B01J21/06 ,  B01J35/00 ,  C07C51/09

CPC classification number: B01J27/198 ,  B01J21/063 ,  B01J35/002 ,  B01J37/031 ,  B01J2523/00 ,  C07C51/09 ,  B01J2523/47 ,  B01J2523/51 ,  B01J2523/55 ,  C07C57/04

Abstract: The invention relates to a catalyst composition comprising a mixed oxide of vanadium, titanium, and phosphorus. The titanium component is derived from a water-soluble, redox-active organo-titanium compound. The catalyst composition is highly effective at facilitating the vapor-phase condensation of formaldehyde with acetic acid to generate acrylic acid, particularly using an industrially relevant aqueous liquid feed. Additionally, the catalyst composition is catalytically active towards the formation of acrylic acid from methylene diacetate and methacrylic acid from methylene dipropionate; both reactions are carried out with high space time yields.

Abstract translation: 本发明涉及包含钒，钛和磷的混合氧化物的催化剂组合物。 钛组分衍生自水溶性，氧化还原活性有机钛化合物。 催化剂组合物在促进甲醛与乙酸的气相缩合以产生丙烯酸方面是非常有效的，特别是使用工业上相关的水性液体进料。 此外，催化剂组合物对于从亚甲基二乙酸酯和甲基丙烯酸由二丙酸亚丙酯形成丙烯酸具有催化活性; 两个反应均以高空时产率进行。