Title:
PROCESS FOR TREATING AN AQUEOUS MEDIUM CONTAINING PHOSPHATE, CYCLOHEXANONE AND CYCLOEXANONE OXIME
Document Type and Number:
WIPO Patent Application WO2002096861
Kind Code:
A3
Abstract:
The invention relates to a process for treating an aqueous medium containing (i) phosphate and (ii) cyclohexanone and/or cyclohexanone oxime, said process comprising: feeding the aqueous medium to a stripping zone; passing steam through the aqueous medium in the stripping zone; and discharging a vapor stream from said stripping zone; wherein the joint content cyclohexanone and cyclohexanone oxime in the aqueous medium entering the stripping zone is less than 0.08 wt.%.
Inventors:
BENNEKER ARNO (NL)
OEVERING HENK (NL)
BROUWERS JOHANNES ANTONIUS LEO (NL)
OEVERING HENK (NL)
BROUWERS JOHANNES ANTONIUS LEO (NL)
Application Number:
PCT/NL2002/000342
Publication Date:
March 20, 2003
Filing Date:
May 29, 2002
Export Citation:
Assignee:
DSM NV (NL)
BENNEKER ARNO (NL)
OEVERING HENK (NL)
BROUWERS JOHANNES ANTONIUS LEO (NL)
BENNEKER ARNO (NL)
OEVERING HENK (NL)
BROUWERS JOHANNES ANTONIUS LEO (NL)
International Classes:
B01D11/04; B01D3/00; C07B61/00; C07C249/08; C07C249/14; C07C251/44; (IPC1-7): C07C249/08; C07C249/14; C07C251/44
Domestic Patent References:
| WO2001094298A1 | 2001-12-13 |
Foreign References:
| DE4328795A1 | 1995-03-02 | |||
| GB1138750A | 1969-01-01 | |||
| US3940442A | 1976-02-24 |
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