公开(公告)号：US20220274919A1

公开(公告)日：2022-09-01

申请号：US17633058

申请日：2020-07-28

Applicant: BASF SE

Inventor： Marina-Eleni STAVROU ,  Marcus BECHTEL ,  Rosario MAZARRO BERDONCES ,  Frank PIEPENBREIER ,  Chee Jian CHAN ,  Bjoern KAIBEL ,  Andreas KEMPTER

IPC: C07C303/06 ,  C07C303/44

Abstract: Process for separating anhydrous methanesulfonic acid from a reaction mixture comprising methanesulfonic acid and sulfuric acid by distillation with at least three functional steps and the use of said methanesulfonic acid.

公开(公告)号：US20220340518A1

公开(公告)日：2022-10-27

申请号：US17766035

申请日：2020-09-22

Applicant: BASF SE

Inventor： Frank PIEPENBREIER ,  Andreas KEMPTER ,  Chee Jian CHAN ,  Rosario MAZARRO BERDONCES ,  Kerstin SCHIERLE-ARNDT ,  Bjoern KAIBEL ,  Jan SPIELMANN ,  Frieder BORGMEIER ,  Michael ZEILINGER ,  Ingo BIERTUEMPEL ,  Timo OTT

IPC: C07C303/06

Abstract: The present invention relates to an improved process for manufacturing of alkanesulfonic acids.