DE69803854T2 - Verfahren zur aufarbeitung von säure und nitroverbindungen enthaltenden wässrigen lösungen - Google Patents
Verfahren zur aufarbeitung von säure und nitroverbindungen enthaltenden wässrigen lösungenInfo
- Publication number
- DE69803854T2 DE69803854T2 DE69803854T DE69803854T DE69803854T2 DE 69803854 T2 DE69803854 T2 DE 69803854T2 DE 69803854 T DE69803854 T DE 69803854T DE 69803854 T DE69803854 T DE 69803854T DE 69803854 T2 DE69803854 T2 DE 69803854T2
- Authority
- DE
- Germany
- Prior art keywords
- aqueous solutions
- solutions containing
- nitro compounds
- treating acid
- containing nitro
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C201/00—Preparation of esters of nitric or nitrous acid or of compounds containing nitro or nitroso groups bound to a carbon skeleton
- C07C201/06—Preparation of nitro compounds
- C07C201/16—Separation; Purification; Stabilisation; Use of additives
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C201/00—Preparation of esters of nitric or nitrous acid or of compounds containing nitro or nitroso groups bound to a carbon skeleton
- C07C201/06—Preparation of nitro compounds
- C07C201/08—Preparation of nitro compounds by substitution of hydrogen atoms by nitro groups
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S210/00—Liquid purification or separation
- Y10S210/902—Materials removed
- Y10S210/903—Nitrogenous
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S210/00—Liquid purification or separation
- Y10S210/902—Materials removed
- Y10S210/908—Organic
- Y10S210/909—Aromatic compound, e.g. pcb, phenol
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9710346A FR2767319B1 (fr) | 1997-08-13 | 1997-08-13 | Procede de traitement de solutions aqueuses comprenant des acides et des composes nitres |
PCT/FR1998/001793 WO1999008995A1 (fr) | 1997-08-13 | 1998-08-11 | Procede de traitement de solutions aqueuses comprenant des acides et des composes nitres |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69803854D1 DE69803854D1 (de) | 2002-03-21 |
DE69803854T2 true DE69803854T2 (de) | 2002-09-26 |
Family
ID=9510284
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69803854T Expired - Lifetime DE69803854T2 (de) | 1997-08-13 | 1998-08-11 | Verfahren zur aufarbeitung von säure und nitroverbindungen enthaltenden wässrigen lösungen |
Country Status (8)
Country | Link |
---|---|
US (1) | US6254789B1 (de) |
EP (1) | EP1003710B1 (de) |
DE (1) | DE69803854T2 (de) |
DK (1) | DK1003710T3 (de) |
ES (1) | ES2172914T3 (de) |
FR (1) | FR2767319B1 (de) |
PT (1) | PT1003710E (de) |
WO (1) | WO1999008995A1 (de) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6723236B2 (en) * | 2002-03-19 | 2004-04-20 | Waters Investments Limited | Device for solid phase extraction and method for purifying samples prior to analysis |
US7000409B2 (en) * | 2003-05-23 | 2006-02-21 | Marit Jagtoyen Mazzetti | Use of flow through capacitor in the recovery and purification of water from exhaust gases of internal combustion engines |
DE10329304A1 (de) * | 2003-06-30 | 2005-02-03 | Bayer Materialscience Ag | Verfahren zur Aufarbeitung des bei der Herstellung von Dinitrotoluol anfallenden Abwassers |
DE102004017628A1 (de) * | 2004-04-10 | 2005-11-03 | Bayer Materialscience Ag | Verfahren zur Aufarbeitung von aromatische Nitroverbindungen enthaltenden Abwässern |
US7736529B2 (en) * | 2007-10-12 | 2010-06-15 | Honeywell International Inc | Azeotrope-like compositions containing sulfur hexafluoride and uses thereof |
US20120205308A1 (en) * | 2010-08-12 | 2012-08-16 | Basf Se | Process for purifying wastewaters from the workup of crude aromatic nitro compounds |
KR102048059B1 (ko) | 2012-04-25 | 2019-11-22 | 바스프 에스이 | 디니트로톨루엔의 세정 방법 |
US9249083B2 (en) | 2012-04-25 | 2016-02-02 | Basf Se | Process for scrubbing dinitrotoluene |
CN108440300A (zh) * | 2018-05-15 | 2018-08-24 | 福建省东南电化股份有限公司 | 一种硝化废酸浓缩过程中防止堵塞的方法 |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2773911A (en) * | 1953-12-11 | 1956-12-11 | Du Pont | Continuous manufacture of nitrobenzene |
EP0047331A1 (de) * | 1980-09-06 | 1982-03-17 | American Cyanamid Company | Rückgewinnung aromatischer Nitroverbindungen aus Nitrier-Waschlaugen |
FR2714666B1 (fr) * | 1993-12-31 | 1996-03-01 | Rhone Poulenc Chimie | Procédé d'élimination d'effluents aqueux comprenant notamment des composés hydroxynitroaromatiques. |
DE4428460A1 (de) * | 1994-08-11 | 1996-02-15 | Bayer Ag | Verfahren zur Herstellung von Nitroaromaten |
-
1997
- 1997-08-13 FR FR9710346A patent/FR2767319B1/fr not_active Expired - Lifetime
-
1998
- 1998-08-11 DE DE69803854T patent/DE69803854T2/de not_active Expired - Lifetime
- 1998-08-11 DK DK98942728T patent/DK1003710T3/da active
- 1998-08-11 ES ES98942728T patent/ES2172914T3/es not_active Expired - Lifetime
- 1998-08-11 WO PCT/FR1998/001793 patent/WO1999008995A1/fr active IP Right Grant
- 1998-08-11 PT PT98942728T patent/PT1003710E/pt unknown
- 1998-08-11 US US09/485,498 patent/US6254789B1/en not_active Expired - Lifetime
- 1998-08-11 EP EP98942728A patent/EP1003710B1/de not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
US6254789B1 (en) | 2001-07-03 |
FR2767319A1 (fr) | 1999-02-19 |
EP1003710B1 (de) | 2002-02-13 |
PT1003710E (pt) | 2002-07-31 |
EP1003710A1 (de) | 2000-05-31 |
DK1003710T3 (da) | 2002-03-25 |
DE69803854D1 (de) | 2002-03-21 |
WO1999008995A1 (fr) | 1999-02-25 |
FR2767319B1 (fr) | 1999-10-29 |
ES2172914T3 (es) | 2002-10-01 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
R081 | Change of applicant/patentee |
Ref document number: 1003710 Country of ref document: EP Owner name: PERSTORP FRANCE, FR Free format text: FORMER OWNER: RHODIA CHIMIE, BOULOGNE BILLANCOURT, FR Effective date: 20121220 |
|
R082 | Change of representative |
Ref document number: 1003710 Country of ref document: EP Representative=s name: VON ROHR PATENTANWAELTE PARTNERSCHAFT, DE Effective date: 20121220 |