Title:
PROCESS FOR WORKUP OF GLYCOL-CONTAINING AIRCRAFT DEICERS
Document Type and Number:
WIPO Patent Application WO/2010/072311
Kind Code:
A3
Abstract:
The invention provides a process for working up glycol-containing aircraft deicers, by (1) removing the suspended impurities from the used aircraft deicer, (2) treating the product thus obtained in such a way that the thickeners present therein are no longer capable of gel formation, (3) before or after step (2) establishing a pH of > 7, (4) and then fractionally distilling off the glycols.
Inventors:
KROPAC BERNHARD (DE)
KERBL WOLFGANG (DE)
GATTER ERICH (DE)
KERBL WOLFGANG (DE)
GATTER ERICH (DE)
Application Number:
PCT/EP2009/008583
Publication Date:
February 24, 2011
Filing Date:
December 02, 2009
Export Citation:
Assignee:
CLARIANT FINANCE BVI LTD
KROPAC BERNHARD (DE)
KERBL WOLFGANG (DE)
GATTER ERICH (DE)
KROPAC BERNHARD (DE)
KERBL WOLFGANG (DE)
GATTER ERICH (DE)
International Classes:
C09K3/18; B64F5/00; C07C29/88
Foreign References:
DE19650682A1 | 1998-06-10 | |||
EP0637620A2 | 1995-02-08 | |||
CA2116827A1 | 1995-05-03 | |||
EP1889658A2 | 2008-02-20 |
Attorney, Agent or Firm:
MIKULECKY, Klaus et al. (Patent ManagementAm Unisys-Park 1, Sulzbach, DE)
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