发明名称 |
INTEGRATED METHOD FOR PRODUCING TRIOXANE FROM FORMALDEHYDE |
摘要 |
The invention relates to an integrated process for preparing trioxane from formaldehyde in which a stream A1 comprising water and formaldehyde and a recycle stream B2 consisting substantially of water and formaldehyde are fed to a trioxane synthesis reactor in which the formaldehyde is converted to trioxane to obtain a product stream A2 comprising trioxane, water and formaldehyde; stream A2 is fed to a first distillation column and distilled at a pressure in the range from 0.1 to 2.5 bar to obtain a stream B1 enriched in trioxane, and the stream B2 consisting substantially of water and formaldehyde; stream B1 and a recycle stream D1 comprising trioxane, water and formaldehyde are fed to a second distillation column and distilled at a pressure in the range from 0.2 to 17.5 bar to obtain a product stream C2 consisting substantially of trioxane, and a stream C1 comprising trioxane, water and formaldehyde; stream C1 is fed to a third distillation column and distilled at a pressure in the range from 0.1 to 2.5 bar to obtain the recycle stream D1 comprising trioxane, water and formaldehyde, and a stream D2 consisting substantially of water and formaldehyde. |
申请公布号 |
EP1915359(A1) |
申请公布日期 |
2008.04.30 |
申请号 |
EP20060792714 |
申请日期 |
2006.08.04 |
申请人 |
BASF SE |
发明人 |
LANG, NEVEN;STROEFER, ECKHARD;STAMMER, ACHIM;FRIESE, THORSTEN;SIEGERT, MARKUS;HASSE, HANS;GRUETZNER, THOMAS;BLAGOV, SERGEJ |
分类号 |
C07D323/06 |
主分类号 |
C07D323/06 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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