发明授权
US3261872A Process for extracting acid substances such as phenols, thiophenols and/or their homologs from nonaqueous mixtures containing them 失效
从含有它们的非水混合物中提取酸性物质如苯酚,苯硫酚和/或其同系物的方法

  • 专利标题: Process for extracting acid substances such as phenols, thiophenols and/or their homologs from nonaqueous mixtures containing them
  • 专利标题(中): 从含有它们的非水混合物中提取酸性物质如苯酚,苯硫酚和/或其同系物的方法
  • 申请号: US12683161
    申请日: 1961-07-18
  • 公开(公告)号: US3261872A
    公开(公告)日: 1966-07-19
  • 发明人: HELMUT FRITZSCHEFRITZ KROGERKARL STEIN
  • 申请人: STILL FA CARL
  • 专利权人: Still Fa Carl
  • 当前专利权人: Still Fa Carl
  • 优先权: DEST017186 1960-12-02
  • 主分类号: C07C37/72
  • IPC分类号: C07C37/72
Process for extracting acid substances such as phenols, thiophenols and/or their homologs from nonaqueous mixtures containing them
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