公开(公告)号：US20240010597A1

公开(公告)日：2024-01-11

申请号：US18021570

申请日：2021-08-09

Applicant: BASF SE

Inventor： Jessica Nadine HAMANN ,  Joaquim Henrique TELES ,  Peter Georg OHLEMUELLER ,  Friedemann GAITZSCH ,  Shelue LIANG ,  Stefan RITTINGER ,  Frauke THRUN ,  Richard DEHN

IPC: C07C51/235 ,  C07C51/44

CPC classification number: C07C51/235 ,  C07C51/44

Abstract: A process for the preparation of a color stable C6-12 saturated aliphatic carboxylic acid in which (1) the corresponding aldehyde is oxidized with molecular oxygen to obtain the crude saturated aliphatic carboxylic acid in a liquid mixture, (2) molecular oxygen removed from the crude saturated aliphatic carboxylic acid mixture, and (3) the saturated aliphatic carboxylic acid separated from the molecular oxygen depleted mixture by distillation as a color stable product.

公开(公告)号：US20230391542A1

公开(公告)日：2023-12-07

申请号：US18032193

申请日：2021-10-12

Applicant: BASF SE

Inventor： Joaquim Henrique TELES ,  Jessica Nadine HAMANN ,  Shelue LIANG ,  Stefan RITTINGER

IPC: B65D85/84 ,  C07C53/126

CPC classification number: B65D85/84 ,  C07C53/126

Abstract: A container and a process for the degradation stable storage and transport of a liquid comprising a saturated aliphatic C6-12 carboxylic acid in which the liquid is covered with an oxygen free or at least heavily oxygen depleted inert gas phase atmosphere above the liquid.

公开(公告)号：US20230047974A1

公开(公告)日：2023-02-16

申请号：US17791542

申请日：2020-12-29

Applicant: BASF SE

Inventor： Joaquim Henrique TELES ,  Jessica Nadine HAMANN ,  Jonathan Thomas LEFEBVRE ,  Wolf-Steffen WEISSKER ,  Shelue LIANG

IPC: C07C51/235 ,  C07C51/44

Abstract: A process for the preparation of a saturated aliphatic carboxylic acid with 3 to 5 carbon atoms by oxidation of the corresponding aldehyde with oxygen in which (a) the corresponding aldehyde is converted with oxygen at a temperature of 40 to 150° C. and an oxygen partial pressure of 0.001 to 1 MPa to obtain a mixture containing the saturated aliphatic carboxylic acid and ≤2 mol-% of the corresponding aldehyde with respect to the saturated aliphatic carboxylic acid, (b) the mixture obtained in step (a) is thermally treated in the liquid phase at a temperature of 80 to 250° C. and a pressure of 0.1 to 2 MPa abs for 0.25 to 100 hours, and (c) the mixture obtained in step (b) is distilled in a distillation apparatus to obtain a distillate containing ≥90 wt.-% of the saturated aliphatic carboxylic acid and having an active oxygen content of 0 to 25 wt.-ppm based on the distillate.