公开(公告)号：US20190330171A1

公开(公告)日：2019-10-31

申请号：US16310645

申请日：2017-07-12

Applicant: BASF SE

Inventor： Andrei-Nicolae PARVULESCU ,  Ulrich MUELLER ,  Joaquim Henrique TELES ,  Dominic RIEDEL ,  Markus WEBER ,  Yan LI

IPC: C07D301/12 ,  B01J29/70

Abstract: A process for preparing ethene oxide comprising providing a liquid feed stream comprising ethene, hydrogen peroxide, and a solvent; passing the liquid feed stream into an epoxidation zone comprising a catalyst comprising a titanium zeolite comprising zinc and having framework type MWW, and subjecting the liquid feed stream to epoxidation reaction conditions in the epoxidation zone, obtaining a reaction mixture comprising ethene oxide, water, and the solvent; removing an effluent stream from the epoxidation zone, the effluent stream comprising ethene oxide, water and the solvent.

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。