Invention Grant
- Patent Title: Trioxane production method wherein a side aqueous flow is deducted at a first distillation stage
- Patent Title (中): 三恶烷制备方法，其中在第一蒸馏阶段扣除侧水流
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Application No.: US11665840Application Date: 2005-10-20
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Publication No.: US08530678B2Publication Date: 2013-09-10
- Inventor: Markus Siegert , Neven Lang , Eckhard Stroefer , Achim Stammer , Thorsten Friese
- Applicant: Markus Siegert , Neven Lang , Eckhard Stroefer , Achim Stammer , Thorsten Friese
- Applicant Address: DE
- Assignee: BASF Aktiengesellschaft
- Current Assignee: BASF Aktiengesellschaft
- Current Assignee Address: DE
- Agency: Novak Druce Connolly Bove + Quigg LLP
- Priority: DE102004051118 20041020
- International Application: PCT/EP2005/011303 WO 20051020
- International Announcement: WO2006/042759 WO 20060427
- Main IPC: C07D323/06
- IPC: C07D323/06
Abstract:
Processes are disclosed comprising: (a) reacting an aqueous formaldehyde solution in a reactor in the presence of a suitable catalyst to obtain a reaction product mixture comprising trioxane, formaldehyde and water; (b) distilling the reaction product mixture to form a top stream comprising crude trioxane; and (c) treating the top stream in one or more additional stages to form pure trioxane; wherein an aqueous sidestream is drawn off during the distilling of the reaction mixture.
Public/Granted literature
- US20070293689A1 Trioxane Production Method Wherein A Side Aqueous Flow Is Deducted At A First Distillation Stage Public/Granted day:2007-12-20
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