公开(公告)号：US20160023982A1

公开(公告)日：2016-01-28

申请号：US14775834

申请日：2014-03-14

Applicant: BASF SE

Inventor： Christian DIENES ,  Matthias RAULS ,  Oliver BEY ,  Matthias WEICKERT

IPC: C07C51/43

CPC classification number: C07C51/43 ,  B01D9/0004 ,  B01D9/0018 ,  B01D9/0022 ,  B01F7/162 ,  B01F7/1675 ,  B01F7/168 ,  B01F7/22 ,  B01F15/0203 ,  B01F2215/0422 ,  B01F2215/0431 ,  B01J19/006 ,  B01J19/0066 ,  B01J19/1875 ,  B01J2219/00182 ,  B01J2219/00189 ,  B01J2219/00243 ,  C07C55/10 ,  C07C55/14 ,  C07C63/26

Abstract: The invention relates to a process for producing free-flowing dicarboxylic acid crystals from an aqueous solution or suspension of the dicarboxylic acid in a crystallizer.

Abstract translation: 本发明涉及一种从二羧酸在结晶器中的水溶液或悬浮液中产生自由流动的二羧酸晶体的方法。

公开(公告)号：US20250100965A1

公开(公告)日：2025-03-27

申请号：US18852720

申请日：2023-03-30

Applicant: BASF SE

Inventor： Stefan BLEI ,  Faissal-Ali EL-TOUFAILI ,  Alexander HETZ-HUNSINGER ,  Marc FELDEN ,  Jochen GAUER ,  Michel GASSMANN ,  Christian DIENES ,  Zeljko KOTANJAC ,  Vikram Raghavendhar RAVIKUMAR ,  Esther Matyka LARYEA

IPC: C07D201/12 ,  C07D201/16

Abstract: The present invention relates to a process for separating at least one ε-caprolactam oligomeric compound CPO from a stream SR comprising said at least one CPO and ε-caprolactam monomeric compound CPM.

公开(公告)号：US20250162984A1

公开(公告)日：2025-05-22

申请号：US18839587

申请日：2023-02-15

Applicant: BASF SE

Inventor： Brigitte ZEPP ,  Christian DIENES ,  Frieder BORGMEIER ,  Simon REIFEGERSTE ,  Jan SPIELMANN

IPC: C07C303/16

Abstract: The invention relates to a process for producing alkyl sulfonic acid in a reaction apparatus (41) which contains a liquid phase comprising aqueous nitric acid, wherein dialkyl disulfide is fed into the liquid phase in the reaction apparatus (41) and a crude reaction product is formed in the reaction apparatus (41) by chemical reaction of the dialkyl disulfide with the nitric acid, wherein feeding the dialkyl disulfide comprises at least one of: the liquid dialkyl disulfide is fed into the reaction apparatus (41) through an orifice (28, 29; 33) having a hydraulic diameter of less than 5 mm; the liquid dialkyl disulfide is fed into the reaction apparatus (41) with an inlet velocity of at least 0.6 m/s.