公开(公告)号：US20160271516A1

公开(公告)日：2016-09-22

申请号：US15072463

申请日：2016-03-17

Applicant: BASF SE

Inventor： Tim BLASCHKE ,  Ulrich CREMER ,  Ulrich HAMMON

IPC: B01D3/32 ,  C07C45/78 ,  C07C51/42 ,  C07C67/48 ,  B01D3/26 ,  B01F3/04

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 crossflow tray for a mass transfer column (27) in which a gas is conducted in countercurrent to a liquid, the crossflow tray (1) having passage orifices (3) for the gas and at least two downcomers (5), the downcomers (5) projecting beyond the top surface of the crossflow tray (1) and a collecting cup (13) being disposed beneath each downcomer (5). The downcomer (5) projects into the collecting cup (13), the minimum horizontal cross-sectional area of the collecting cup (13) is 1.2 to 4 times greater than the horizontal cross-sectional area of the downcomer (5) at the outlet, and the collecting cup (13) has a circumferential wall (15) having an overflow (19).The invention further relates to a mass transfer column comprising the crossflow trays and to a use of the mass transfer column.

Abstract translation: 本发明进一步涉及一种包括交叉流塔盘和传质柱的用途的传质塔。

公开(公告)号：US20200239400A1

公开(公告)日：2020-07-30

申请号：US16636703

申请日：2018-08-13

Applicant: BASF SE

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

IPC: C07C67/08 ,  C07C67/54

Abstract: A process for continuously preparing a butyl acrylate H2C═CH—C(═O)OR, with R=n-butyl or isobutyl, wherein aqueous 3-hydroxypropionic acid is converted under dehydrating and esterifying conditions in the presence of the corresponding butanol R—OH in a reactor with a rectification column and butyl acrylate formed, unconverted butanol and water used and formed are distilled off overhead as a ternary azeotrope, after separation into a liquid aqueous phase and liquid organic phase each of the aqueous and organic phases is at least partly discharged, and the organic phase comprising the butyl acrylate and the butanol is subjected to distillative separation.

公开(公告)号：US20160159724A1

公开(公告)日：2016-06-09

申请号：US14958207

申请日：2015-12-03

Applicant: BASF SE

Inventor： Nicolai Tonio WOERZ ,  Lukas SCHULZ ,  Tim BLASCHKE ,  Marco HARTMANN ,  Feelly RUETHER ,  Yan LI

IPC: C07C51/47

CPC classification number: C07C51/47 ,  C07C51/43 ,  C07C57/04 ,  C07C67/343

Abstract: A process for obtaining acrylic acid, comprising (a) providing a liquid stream S7 comprising acetic acid and acrylic acid, where the molar ratio of acetic acid to acrylic acid in stream S7 is greater than 1:1, (b-1) crystallizing a portion of the acetic acid present in stream S7 to obtain solid crystallized acetic acid in its mother liquor, (b-2) separating the mother liquor from the acetic acid crystallized in (b-1) to obtain the solid crystallized acetic acid and a liquid stream S8 comprising acrylic acid and acetic acid, (c) separating stream S8 into at least one stream S10 depleted of acrylic acid compared to S8 and a stream S11 enriched in acrylic acid compared to S8.

Abstract translation: 一种获得丙烯酸的方法，包括（a）提供包含乙酸和丙烯酸的液体流S7，其中料流S7中乙酸与丙烯酸的摩尔比大于1:1，（b-1）使 存在于料流S7中的乙酸部分以在其母液中获得固体结晶的乙酸，（b-2）将母液从（b-1）中结晶的乙酸分离，得到固体结晶的乙酸和液体 流S8包含丙烯酸和乙酸，（c）与S8相比，将流S8分离成至少一个缺乏丙烯酸的流S10，和与S8相比富含丙烯酸的流S11。