发明授权
US5688970A Process to recycle exhaust gases from n-butane conversion into maleic
anhydride
失效
将废气从正丁烷转化回收到马来酸酐的方法
- 专利标题： Process to recycle exhaust gases from n-butane conversion into maleic anhydride
- 专利标题（中）： 将废气从正丁烷转化回收到马来酸酐的方法
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申请号： US395438申请日： 1995-02-28
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公开(公告)号： US5688970A公开(公告)日： 1997-11-18
- 发明人: Roberto Ruggieri , Salvatore Cassarino
- 申请人： Roberto Ruggieri , Salvatore Cassarino
- 申请人地址： ITX Milan
- 专利权人： Sisas Societa' Italiana Serie Acetica E Sintetica SpA
- 当前专利权人： Sisas Societa' Italiana Serie Acetica E Sintetica SpA
- 当前专利权人地址： ITX Milan
- 优先权： ITXMI94A1359 19940630
- 主分类号： C07C51/215
- IPC分类号： C07C51/215 ; C07D307/60
摘要：
In producing maleic anhydride by catalytic oxidation of butane in vapor phase, the reaction mixture consists of butane and a recycle gaseous current made of compressed air and exhaust gas recovered from the absorption stage by a solvent of the maleic anhydride produced; oxygen and total butane concentration in the recycle stream are controlled.