公开(公告)号：US20160152541A1

公开(公告)日：2016-06-02

申请号：US14956800

申请日：2015-12-02

Applicant: BASF SE

Inventor： Yong LIU ,  Martin DIETERLE ,  Nicolai Tonio WOERZ ,  Andrei-Nicolae PARVULESCU ,  Michael LEJKOWSKI ,  Johannes LIEBERKNECHT ,  Christian WALSDORFF ,  Kazuhiko AMAKAWA

IPC: C07C51/353

CPC classification number: C07C51/353 ,  B01J23/002 ,  B01J27/198 ,  B01J27/199 ,  B01J29/7057 ,  B01J35/023 ,  B01J37/0036 ,  B01J37/0203 ,  B01J37/0205 ,  B01J37/0213 ,  B01J37/08 ,  B01J38/02 ,  B01J2523/00 ,  Y02P20/584 ,  C07C57/04 ,  B01J2523/41 ,  B01J2523/51 ,  B01J2523/54 ,  B01J2523/55 ,  B01J2523/69

Abstract: The present invention relates to a process for preparing acrylic acid from acetic acid and formaldehyde, which comprises (a) provision of a stream S1 comprising acetic acid and formaldehyde, where the molar ratio of acetic acid to formaldehyde in the stream S1 is in the range from 0.5:1 to 2:1; (b) contacting of the stream S1 with an aldol condensation catalyst comprising vanadium, phosphorus and oxygen to give a stream S2 comprising acrylic acid, where, in (b), the space velocity WHSV is in the range from 0.35 to 7.0 kg/kg/h.

Abstract translation: 本发明涉及从乙酸和甲醛制备丙烯酸的方法，其包括（a）提供包含乙酸和甲醛的料流S1，其中料流S1中乙酸与甲醛的摩尔比在该范围内 从0.5：1至2：1; （b）流S1与包含钒，磷和氧的醛醇缩合催化剂接触，得到包含丙烯酸的流S2，其中（b）中的空间速度WHSV为0.35-7.0kg / kg /H。