- 专利标题: Process for purifying alkanesulfonic anhydride and process for producing alkanesulfonic acid using the purified alkanesulfonic anhydride
-
申请号: US16605973申请日: 2018-04-18
-
公开(公告)号: US10730827B2公开(公告)日: 2020-08-04
- 发明人: Juergen Wortmann , Jan Spielmann , Katharina Federsel , Feelly Ruether
- 申请人: BASF SE
- 申请人地址: DE Ludwigshafen am Rhein
- 专利权人: BASF SE
- 当前专利权人: BASF SE
- 当前专利权人地址: DE Ludwigshafen am Rhein
- 代理机构: Oblon, McClelland, Maier & Neustadt, L.L.P.
- 优先权: com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@5a66bee4
- 国际申请: PCT/EP2018/059864 WO 20180418
- 国际公布: WO2018/192954 WO 20181025
- 主分类号: C07C303/44
- IPC分类号: C07C303/44 ; C07C303/06
摘要:
A process for purifying alkanesulfonic anhydride that includes feeding a stream containing alkanesulfonic anhydride, sulfuric acid, high boilers and residual low boilers into a melt crystallization to form crystals of the alkanesulfonic anhydride suspended in mother liquor, and solid-liquid separation to remove the crystals from the mother liquor.
公开/授权文献
信息查询