发明名称 |
METHOD FOR REPROCESSING AIRCRAFT DE-ICING AGENTS COMPRISING GLYCOL |
摘要 |
The invention relates to a method for reprocessing aircraft de-icing agents comprising glycol, wherein (1) the used aircraft de-icing agents are collected in a suitable device, (2) the used aircraft de-icing agent is subsequently brought to a propylene glycol content of between 55 and 75% by weight without prior separating of solid or suspended impurities by expelling water at increased temperature, (3) the concentrated used aircraft de-icing agent thus obtained is transported to a central reprocessing system, where the same is subjected to a fine distillation, and wherein (4) propylene glycol is produced as a distillate of the fine distillation. |
申请公布号 |
WO2010072312(A3) |
申请公布日期 |
2011.02.24 |
申请号 |
WO2009EP08584 |
申请日期 |
2009.12.02 |
申请人 |
CLARIANT FINANCE (BVI) LIMITED;STANKOWIAK, ACHIM;JESCHKE, INGO;BERGSTROEM, THOMAS |
发明人 |
STANKOWIAK, ACHIM;JESCHKE, INGO;BERGSTROEM, THOMAS |
分类号 |
C09K3/18;B64F5/00;C07C29/88 |
主分类号 |
C09K3/18 |
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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