发明名称 |
Process for the reclamation of used glycolic aircraft deicing compositions |
摘要 |
In the described process, the used aircraft deicing fluid is subjected first to a conventional filtration to remove undissolved substances and subsequently to an ultrafiltration to remove, in particular, the polymeric thickeners. The permeate from the ultrafiltration is then treated with ion exchangers, and the resulting eluate, essentially composed of glycol and water, is subsequently distilled to remove water and thus the glycol content is brought to the required value. The glycol/water solution obtained in this way can be used to prepare a new aircraft deicing composition by mixing the other components required in the glycol/water solution.
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申请公布号 |
US5411668(A) |
申请公布日期 |
1995.05.02 |
申请号 |
US19940285791 |
申请日期 |
1994.08.04 |
申请人 |
POELLMANN, KLAUS;VON EYSMONDT, JOERG |
发明人 |
POELLMANN, KLAUS;VON EYSMONDT, JOERG |
分类号 |
B01D61/14;C02F1/04;C02F1/42;C07C29/76;C09K3/00;C09K3/18;(IPC1-7):B01D61/16 |
主分类号 |
B01D61/14 |
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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