公开(公告)号：EP3668831A1

公开(公告)日：2020-06-24

申请号：EP18752155.4

申请日：2018-08-13

Applicant: BASF SE

Inventor： LANG, Ortmund ,  BLASCHKE, Tim ,  RAITH, Christian ,  SCHAFRANKA, Michael ,  HECHLER, Claus

IPC: C07C67/54 ,  C07C67/08 ,  C07C69/54 ,  C12P7/42

公开(公告)号：EP3145965A1

公开(公告)日：2017-03-29

申请号：EP15722719.0

申请日：2015-05-13

Applicant: BASF SE

Inventor： BLASCHKE, Tim ,  LANG, Ortmund ,  ZAJACZKOWSKI-FISCHER, Marta ,  HARTMANN, Marco

IPC: C08F120/06 ,  C07C51/44 ,  C07C57/04

CPC classification number: C07C51/46 ,  C07C51/377 ,  C07C51/43 ,  C07C57/04

Abstract: The invention relates to a method for dehydrating aqueous 3-hydroxypropanoic acid to form acrylic acid. In a first step of said method, an aqueous mixture of 3-hydroxypropionic acid and oligomeric 3-hydroxypropionic acid is reacted in a liquid phase to form acrylic acid, and aqueous acrylic acid is distilled from the liquid phase, and in a second step, the aqueous acrylic acid is separated by distillation into an acrylic acid-rich phase and a water-rich phase.

Abstract translation: 本发明涉及一种将3-羟基丙酸水溶液脱水为丙烯酸的方法，其中3-羟基丙酸和低聚3-羟基丙酸的水性混合物在第一步中在液相中转化为丙烯酸，水性丙烯酸为 从液相中蒸馏出来，在第二步中将丙烯酸水溶液分离成富丙烯相和富水相。

公开(公告)号：EP2997004A1

公开(公告)日：2016-03-23

申请号：EP14722679.9

申请日：2014-05-09

Applicant: BASF SE

Inventor： GÖBEL, Michael ,  WALSDORFF, Christian ,  HARTMANN, Marco ,  WÖRZ, Nicolai Tonio ,  BLASCHKE, Tim ,  GRÜNE, Philipp

IPC: C07C51/353 ,  C07C57/04

CPC classification number: C07C51/377 ,  C07C51/353 ,  C07C57/04

Abstract: In a process for preparing acrylic acid, a reaction gas which comprises a gaseous formaldehyde source and gaseous acetic acid and in which the partial pressure of the formaldehyde source, calculated as formaldehyde equivalents, is at least 85 mbar and in which the molar ratio of the acetic acid to the formaldehyde source, calculated as formaldehyde equivalents, is at least 1 is contacted with a solid condensation catalyst. The space-time yield can be enhanced significantly by increasing the partial pressure of the reactants. The space-time yield remains high even after prolonged process duration.

公开(公告)号：EP3044199A1

公开(公告)日：2016-07-20

申请号：EP14758860.2

申请日：2014-09-02

Applicant: BASF SE

Inventor： BLASCHKE, Tim ,  LANG, Ortmund ,  WÖRZ, Nicolai Tonio ,  RAITH, Christian ,  HARTMANN, Marco ,  ZAJACZKOWSKI-FISCHER, Marta

IPC: C07C57/04

CPC classification number: C07C51/377 ,  C07C51/44 ,  C07C51/50 ,  C07C57/04

Abstract: The invention relates to a method for the dehydration of aqueous 3-hydroxypropanoic acid to form acrylic acid in a liquid phase. Aqueous acrylic acid is continuously removed from the liquid phase and said liquid phase contains an inert organic solvent (1).

公开(公告)号：EP3044198A1

公开(公告)日：2016-07-20

申请号：EP14755362.2

申请日：2014-08-21

Applicant: BASF SE

Inventor： BLASCHKE, Tim ,  LANG, Ortmund ,  WÖRZ, Nicolai Tonio ,  RAITH, Christian ,  HARTMANN, Marco ,  ZAJACZKOWSKI-FISCHER, Marta

IPC: C07C51/377 ,  C07C51/44 ,  C07C57/04

CPC classification number: C07C51/377 ,  C07C51/44 ,  C07C57/04

Abstract: The invention concerns a method of dehydrating aqueous 3-hydroxypropionic acid to form acrylic acid in the fluid phase, aqueous acrylic acid being continuously removed from the fluid phase, and the aqueous 3-hydroxypropionic acid and/or the fluid phase having a high content of oligomeric 3-hydroxypropionic acid.

Abstract translation: 本发明涉及一种将3-羟基丙酸水溶液脱水以在流体相中形成丙烯酸的方法，将含水丙烯酸连续地从流体相中除去，并且3-羟基丙酸水溶液和/或液相具有高含量的 低聚3-羟基丙酸。

公开(公告)号：EP3145965B1

公开(公告)日：2020-02-19

申请号：EP15722719.0

申请日：2015-05-13

Applicant: BASF SE

Inventor： BLASCHKE, Tim ,  LANG, Ortmund ,  ZAJACZKOWSKI-FISCHER, Marta ,  HARTMANN, Marco

IPC: C08F120/06 ,  C07C51/44 ,  C07C57/04

公开(公告)号：EP3044198B1

公开(公告)日：2019-10-09

申请号：EP14755362.2

申请日：2014-08-21

Applicant: BASF SE

Inventor： BLASCHKE, Tim ,  LANG, Ortmund ,  WÖRZ, Nicolai Tonio ,  RAITH, Christian ,  HARTMANN, Marco ,  ZAJACZKOWSKI-FISCHER, Marta

IPC: C07C51/377 ,  C07C51/44 ,  C07C57/04

公开(公告)号：EP3271038A1

公开(公告)日：2018-01-24

申请号：EP16710960.2

申请日：2016-03-16

Applicant: BASF SE

Inventor： BLASCHKE, Tim ,  CREMER, Ulrich ,  HAMMON, Ulrich

IPC: B01D3/20 ,  B01D3/22

CPC classification number: B01D3/324 ,  B01D3/16 ,  B01D3/20 ,  B01D3/225 ,  B01D3/26 ,  B01F3/04468 ,  B01F3/04496 ,  B01J19/0006 ,  C07C45/783 ,  C07C51/42 ,  C07C67/48

Abstract: The invention relates to a cross-flow base for a material exchange column (27) in which a gas a guided in counterflow to a fluid, wherein the cross-flow base (1) has through openings (3) for the gas and at least two drain shafts (5), wherein the drain shafts (5) project over the upper side of the cross-flow base (1) and a collection cup (13) is arranged underneath each drain shaft (5). The drain shaft (5) projects into the collection cup (13), the minimum horizontal cross-sectional area of the collection cup (13) is 1.2 to 4 times larger than the horizontal cross-sectional area of the drain shaft (5) at the outlet, and the collection cup (13) has a circumferential wall (15) with an overflow device (19). The invention also relates to a material exchange column containing the cross-flow base, and to a use of the material exchange column.