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1.发明申请公开(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.
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