EP0442088A1 - Procédé de l'oxidation de composés organiques/insolubles dans l'eau - Google Patents
Procédé de l'oxidation de composés organiques/insolubles dans l'eau Download PDFInfo
- Publication number
- EP0442088A1 EP0442088A1 EP90124224A EP90124224A EP0442088A1 EP 0442088 A1 EP0442088 A1 EP 0442088A1 EP 90124224 A EP90124224 A EP 90124224A EP 90124224 A EP90124224 A EP 90124224A EP 0442088 A1 EP0442088 A1 EP 0442088A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- bar
- chlorinated
- oxidation
- oxidised
- autoclave
- 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.)
- Granted
Links
Classifications
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62D—CHEMICAL MEANS FOR EXTINGUISHING FIRES OR FOR COMBATING OR PROTECTING AGAINST HARMFUL CHEMICAL AGENTS; CHEMICAL MATERIALS FOR USE IN BREATHING APPARATUS
- A62D3/00—Processes for making harmful chemical substances harmless or less harmful, by effecting a chemical change in the substances
- A62D3/30—Processes for making harmful chemical substances harmless or less harmful, by effecting a chemical change in the substances by reacting with chemical agents
- A62D3/38—Processes for making harmful chemical substances harmless or less harmful, by effecting a chemical change in the substances by reacting with chemical agents by oxidation; by combustion
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62D—CHEMICAL MEANS FOR EXTINGUISHING FIRES OR FOR COMBATING OR PROTECTING AGAINST HARMFUL CHEMICAL AGENTS; CHEMICAL MATERIALS FOR USE IN BREATHING APPARATUS
- A62D2101/00—Harmful chemical substances made harmless, or less harmful, by effecting chemical change
- A62D2101/20—Organic substances
- A62D2101/22—Organic substances containing halogen
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62D—CHEMICAL MEANS FOR EXTINGUISHING FIRES OR FOR COMBATING OR PROTECTING AGAINST HARMFUL CHEMICAL AGENTS; CHEMICAL MATERIALS FOR USE IN BREATHING APPARATUS
- A62D2101/00—Harmful chemical substances made harmless, or less harmful, by effecting chemical change
- A62D2101/20—Organic substances
- A62D2101/28—Organic substances containing oxygen, sulfur, selenium or tellurium, i.e. chalcogen
Definitions
- the invention relates to a process for the oxidation of organic pollutants which, in addition to carbon, hydrogen and oxygen, also contain other elements in bound form.
- the process is based on oxidation with nitric acid at temperatures from 150 ° C to 350 ° C and pressures from 6 bar to 350 bar.
- Radiolytic destruction (Singh, A, et al .: Radiat. Phys. Chem. 24 (1985) 11) and decomposition in supercritical water (Freeman, HM and Oletsey, RA: J. Air Pollut. Control Assoc. 36 (1986) 11, 1, p. 67) are also processes that require a very high technical outlay.
- water-insoluble chlorinated hydrocarbons can be largely degraded if these compounds are mixed with nitric acid and heated to temperatures of 150 ° C. to 350 ° C. at pressures from 6 bar to 350 bar.
- Is preferably carried out at a temperature between 250 and 310 ° C. Degradation of the substances can then be achieved in a short reaction time, and the pressure required to maintain a liquid phase should not be unnecessarily high.
- the minimum operating pressure is preferably approximately 30 bar and at a temperature of 320 ° C 100 bar.
- the concentration of the nitric acid used for the oxidation can vary within wide limits. A 20 to 70% acid is preferably used. But the use of more concentrated acid is also possible.
- the reaction time depends on the temperature, the nitric acid concentration and the mixing of the Components. Of particular importance is the observation that even when the autoclave is not mixed, the organic substance decomposes with nitric acid, even if it proceeds more slowly than with intensive stirring.
- the process according to the invention can be carried out either continuously or batchwise.
Landscapes
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Treatment Of Water By Oxidation Or Reduction (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Fire-Extinguishing Compositions (AREA)
- Processing Of Solid Wastes (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4001782A DE4001782A1 (de) | 1990-01-23 | 1990-01-23 | Verfahren zur oxidation wasserunloeslicher organischer verbindungen |
DE4001782 | 1990-01-23 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0442088A1 true EP0442088A1 (fr) | 1991-08-21 |
EP0442088B1 EP0442088B1 (fr) | 1993-04-21 |
Family
ID=6398544
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP90124224A Expired - Lifetime EP0442088B1 (fr) | 1990-01-23 | 1990-12-14 | Procédé de l'oxidation de composés organiques/insolubles dans l'eau |
Country Status (6)
Country | Link |
---|---|
US (1) | US5174985A (fr) |
EP (1) | EP0442088B1 (fr) |
AT (1) | ATE88368T1 (fr) |
DE (2) | DE4001782A1 (fr) |
DK (1) | DK0442088T3 (fr) |
ES (1) | ES2055284T3 (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0503387A1 (fr) * | 1991-03-13 | 1992-09-16 | BASF Aktiengesellschaft | Procédé de dégradation de composés aromatiques nitrés à partir des eaux usées |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5799257A (en) * | 1992-10-27 | 1998-08-25 | Lockheed Martin Idaho Technologies Company | Process for gamma ray induced degradation of polychlorinated biphenyls |
US5454844A (en) * | 1993-10-29 | 1995-10-03 | Minnesota Mining And Manufacturing Company | Abrasive article, a process of making same, and a method of using same to finish a workpiece surface |
US6973678B2 (en) | 2002-03-13 | 2005-12-13 | Jones Timothy B | Easily assembled specimen container |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4080168A (en) * | 1976-02-18 | 1978-03-21 | The Curators Of The University Of Missouri | Method and apparatus for the wet digestion of organic and biological samples |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE793225A (fr) * | 1971-12-22 | 1973-06-22 | Stamicarbon | Procede de traitement des eaux residuaires |
NO762638L (no) * | 1975-09-15 | 1977-03-22 | Continental Oil Co | Fremgangsm}te ved spaltning av halogenerte organiske forbindelser. |
US4497782A (en) * | 1982-10-28 | 1985-02-05 | S. Garry Howell | Method for destroying toxic organic chemical products |
US5019175A (en) * | 1989-05-11 | 1991-05-28 | The United States Of America As Represented By The Administrator, Environmental Protection Agency | Method for the destruction of halogenated organic compounds in a contaminated medium |
US4995916A (en) * | 1990-04-30 | 1991-02-26 | The United States Of America As Represented By The United States Department Of Energy | Method of recovering hazardous waste from phenolic resin filters |
-
1990
- 1990-01-23 DE DE4001782A patent/DE4001782A1/de not_active Withdrawn
- 1990-12-14 EP EP90124224A patent/EP0442088B1/fr not_active Expired - Lifetime
- 1990-12-14 AT AT90124224T patent/ATE88368T1/de not_active IP Right Cessation
- 1990-12-14 ES ES90124224T patent/ES2055284T3/es not_active Expired - Lifetime
- 1990-12-14 DE DE9090124224T patent/DE59001261D1/de not_active Expired - Fee Related
- 1990-12-14 DK DK90124224.8T patent/DK0442088T3/da active
-
1991
- 1991-01-16 US US07/642,105 patent/US5174985A/en not_active Expired - Fee Related
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4080168A (en) * | 1976-02-18 | 1978-03-21 | The Curators Of The University Of Missouri | Method and apparatus for the wet digestion of organic and biological samples |
Non-Patent Citations (1)
Title |
---|
L. FRADKIN et al.: "Technologies for treatment, reuse, and disposal of polychlorinated, biphenyl wastes", Januar 1982, Teil 4.6, Seiten 17-19, National Technical Information Service, Springfield, VA, US; "Catalyzed wet oxidation" * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0503387A1 (fr) * | 1991-03-13 | 1992-09-16 | BASF Aktiengesellschaft | Procédé de dégradation de composés aromatiques nitrés à partir des eaux usées |
US5232605A (en) * | 1991-03-13 | 1993-08-03 | Basf Aktiengesellschaft | Breakdown of waste waters containing aromatic nitro compounds |
Also Published As
Publication number | Publication date |
---|---|
DE4001782A1 (de) | 1991-07-25 |
ATE88368T1 (de) | 1993-05-15 |
DE59001261D1 (de) | 1993-05-27 |
US5174985A (en) | 1992-12-29 |
ES2055284T3 (es) | 1994-08-16 |
DK0442088T3 (da) | 1993-05-17 |
EP0442088B1 (fr) | 1993-04-21 |
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