发明名称 |
Process for the preparation of pure trioxane |
摘要 |
In the process for the preparation of pure trioxane by continuous or semicontinuous crystallization processes, if alkaline organic compounds are added no flocks appear after more than 120 hours of operation. As a result, blockage of the crystallization unit is prevented and problem-free running is made possible.
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申请公布号 |
US5401859(A) |
申请公布日期 |
1995.03.28 |
申请号 |
US19930072761 |
申请日期 |
1993.06.07 |
申请人 |
HOECHST AG |
发明人 |
MUECK, KARL;SCHLAF, HELMUT;RITTNER, SIEGBERT |
分类号 |
B01D9/02;C07D323/06;(IPC1-7):C07D323/06 |
主分类号 |
B01D9/02 |
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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