DE3810707A1 - Process for disposing of organic chlorine compounds by reaction with metals or oxides, with formation of metal chlorides - Google Patents
Process for disposing of organic chlorine compounds by reaction with metals or oxides, with formation of metal chloridesInfo
- Publication number
- DE3810707A1 DE3810707A1 DE19883810707 DE3810707A DE3810707A1 DE 3810707 A1 DE3810707 A1 DE 3810707A1 DE 19883810707 DE19883810707 DE 19883810707 DE 3810707 A DE3810707 A DE 3810707A DE 3810707 A1 DE3810707 A1 DE 3810707A1
- Authority
- DE
- Germany
- Prior art keywords
- metals
- reaction
- organic chlorine
- oxides
- organic
- 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.)
- Withdrawn
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
- A62D3/37—Processes for making harmful chemical substances harmless or less harmful, by effecting a chemical change in the substances by reacting with chemical agents by reduction, e.g. hydrogenation
-
- 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
- A62D3/34—Dehalogenation using reactive chemical agents able to degrade
-
- 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
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)
- Processing Of Solid Wastes (AREA)
- Fire-Extinguishing Compositions (AREA)
Abstract
Description
Die Entsorgung organischer Chlorverbindungen (Chlorkohlewasserstoffe, CKW) ist mitunter mit beträchtlichen Kosten verbunden, wenn man dabei die gesetzlichen Bestimmungen zum Schutz der Um welt strikt beachtet.The disposal of organic chlorine compounds (Chlorinated hydrocarbons, CHC) is sometimes with considerable costs if you do this the legal provisions to protect the order strictly observed world.
Oft scheut man den dazu notwendigen technischen Aufwand und die daraus resultierenden hohen Kosten und verbrennt die giftigen Substanzen auf hoher See.Often one shies away from the necessary technical Effort and the resulting high costs and burns the toxic substances on the high seas.
Ein Teil der zu entsorgenden Substanzen kann jedoch zur Zeit praktisch nicht entsorgt werden, weil eine technisch praktikable, den Forderungen der Umwelt schutzexperten gerecht werdende Methode zur Aufar beitung nicht bekannt ist.However, some of the substances to be disposed of can practically not being disposed of at the moment because of a technically practicable, environmental demands protection experts processing is not known.
Die betreffenden Stoffe sind unter der Sammelbezeich nung PCB - Polychlorierte Biphenyle bekannt.The substances in question are under the collective name PCB - polychlorinated biphenyls known.
Bisher verbrennt lediglich eine kleine Anlage der Firma Bayer geringe Mengen von Clophen, das früher von Bayer hergestellt wurde. Große Mengen von Clophen wird in Salzstöcken eingelagert.So far, only a small plant burns Bayer company used small amounts of clophen, which used to be was manufactured by Bayer. Large amounts of clophen is stored in salt domes.
Mit geringen Mengen PCB verunreinigte Altöle werden von der DEGUSSA dem Vernehmen nach aufge arbeitet. Die Altöle werden mit einer Suspension von Natrium behandelt, wobei die PCB zu Biphenylen hydriert werden sollen. Das Verfahren ist jedoch nur bei sehr niedrigen Chlorgehalten wirtschaftlich.Waste oils contaminated with small amounts of PCB are reportedly opened by DEGUSSA is working. The used oils come with a suspension treated by sodium, the PCB becoming biphenyls should be hydrogenated. The procedure is however economical only at very low chlorine levels.
Zur Aufarbeitung von Clophen bzw. von PCB mit hohem Chlorgehalt ist die vorgenannte Methode zu teuer. For processing Clophen or PCB with high Chlorine content is too expensive for the aforementioned method.
Die physiologischen Eigenschaften der PCB und die Gefahr der Dioxinbildung beim Ver brennen schrecken viele Entsorgungsbetriebe ab, Geld in Versuche zu investieren, diese Substanzen wirtschaftlich und den gesetzlichen Bestimmungen entsprechend aufzuarbeiten.The physiological properties of PCB and the risk of dioxin formation when ver many waste disposal companies are afraid to burn starting to invest money in attempts this Substances economically and legally Process provisions accordingly.
Eigene Versuche in dieser Richtung haben überraschend ergeben, daß hoch chlorhaltige PCB mit Leichtmetallen, Erdalkalimetallen, deren Legierungen, mit Silizium und dessen Legierungen mit den vorgenannten Metallen, exotherme Reaktionen geben.Have your own attempts in this direction surprisingly revealed that high chlorine PCB with light metals, alkaline earth metals, their alloys, with silicon and its Alloys with the aforementioned metals, give exothermic reactions.
Etwa im stöchiometrischen Verhältnis zwischen den Reaktionsmetallen und dem Chlor im PCB- Molekül hergestellte Gemische brennen nach Zündung unter starker Rußbildung selbständig ab.About in the stoichiometric ratio between the reaction metals and the chlorine in the PCB Mixtures produced after burning continue to burn Ignition with heavy soot formation independently from.
Ein typischer Vertreter dieser Art ist das Hexachloridphenyl, dessen Reaktionsgleichung mit Aluminium nachstehend aufgezeigt wird:A typical representative of this type is that Hexachloridphenyl, its reaction equation with aluminum is shown below:
C12H4Cl6 + 2 Al = 2 AlCl3 + 2 CH ≡ CH + 8 C (Ruß)C 12 H 4 Cl 6 + 2 Al = 2 AlCl 3 + 2 CH ≡ CH + 8 C (carbon black)
Weitere Versuche mit PCB haben gezeigt, daß auch andere Metalle in heißem Zustand oder als Schmelzen, mit PCB bzw. PCB-Dampf reagieren und diesen Substanzen das Chlor entziehen.Further tests with PCB have shown that other metals in hot condition or as melting, react with PCB or PCB vapor and remove the chlorine from these substances.
Ein quantitativer Umsatz des ans PCB Molekül gebundenen Chlors zu Metallchlorid, wird je doch nur mit einem Metallüberschuß erzielt.A quantitative turnover of the ans PCB molecule bound chlorine to metal chloride, will but only achieved with an excess of metal.
Arbeitet man nicht unter Luftausschluß, ent hält der bei diesen Reaktionen gebildete Ruß mitunter beträchtliche Dioxin-Mengen.If you do not work in the absence of air, ent the soot formed in these reactions lasts sometimes considerable amounts of dioxins.
Je nach Art und Chlorgehalt der PCB und der Art des metallischen Reaktionspartners bzw. dessen Aggregatzustandes gelingt ein Umsatz des PCB mit glühendem Eisen, Zinkschmelzen, Zinkdampf, Zinn- und Bleischmelzen etc.Depending on the type and chlorine content of the PCB and the Type of metallic reactant or its physical state succeeds in sales the PCB with red-hot iron, molten zinc, Zinc vapor, tin and lead melts etc.
Eine Skizze einer Pilot-Anlage, mit der eine Entsorgung der PCB vorgenommen werden kann, liegt bei. (Schema einer Anlage zur Clophen entsorgung).A sketch of a pilot plant with one Disposal of the PCB can be made lies by. (Scheme of a plant for Clophen disposal).
Claims (8)
Aluminium, Magnesium, Calzium, Silizium, Eisen, Antimon, Zink, Zinn, Blei.2. According to claim 1, the following metals are used:
Aluminum, magnesium, calcium, silicon, iron, antimony, zinc, tin, lead.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19883810707 DE3810707A1 (en) | 1988-03-26 | 1988-03-26 | Process for disposing of organic chlorine compounds by reaction with metals or oxides, with formation of metal chlorides |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19883810707 DE3810707A1 (en) | 1988-03-26 | 1988-03-26 | Process for disposing of organic chlorine compounds by reaction with metals or oxides, with formation of metal chlorides |
Publications (1)
Publication Number | Publication Date |
---|---|
DE3810707A1 true DE3810707A1 (en) | 1989-10-05 |
Family
ID=6351001
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19883810707 Withdrawn DE3810707A1 (en) | 1988-03-26 | 1988-03-26 | Process for disposing of organic chlorine compounds by reaction with metals or oxides, with formation of metal chlorides |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE3810707A1 (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2655657A1 (en) * | 1989-12-12 | 1991-06-14 | Font Pierre | Device and process for the treatment of spent oils and PCBs (polychlorobiphenyls) |
EP0617985A1 (en) * | 1993-03-27 | 1994-10-05 | VAW Aluminium AG | Process for the dehalogenation of the aromatic halogenated hydrocarbons |
DE19530593A1 (en) * | 1995-08-21 | 1997-02-27 | Bildungs Und Ingenieurgesellsc | Decontamination of old waste disposal sites from which hydrogen sulphide is being emitted |
US5789649A (en) * | 1995-08-29 | 1998-08-04 | E. I. Du Pont De Nemours And Company | Method for Remediating contaminated soils |
NL1013558C2 (en) * | 1999-11-11 | 2001-05-14 | Kiror B V | Process for the decomposition and removal of halogenated and aromatic hydrocarbons from materials containing them. |
US6492572B2 (en) | 1995-08-29 | 2002-12-10 | E. I. Du Pont De Nemours And Company | Method for remediating contaminated soils |
-
1988
- 1988-03-26 DE DE19883810707 patent/DE3810707A1/en not_active Withdrawn
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2655657A1 (en) * | 1989-12-12 | 1991-06-14 | Font Pierre | Device and process for the treatment of spent oils and PCBs (polychlorobiphenyls) |
EP0617985A1 (en) * | 1993-03-27 | 1994-10-05 | VAW Aluminium AG | Process for the dehalogenation of the aromatic halogenated hydrocarbons |
DE19530593A1 (en) * | 1995-08-21 | 1997-02-27 | Bildungs Und Ingenieurgesellsc | Decontamination of old waste disposal sites from which hydrogen sulphide is being emitted |
US5789649A (en) * | 1995-08-29 | 1998-08-04 | E. I. Du Pont De Nemours And Company | Method for Remediating contaminated soils |
US6492572B2 (en) | 1995-08-29 | 2002-12-10 | E. I. Du Pont De Nemours And Company | Method for remediating contaminated soils |
NL1013558C2 (en) * | 1999-11-11 | 2001-05-14 | Kiror B V | Process for the decomposition and removal of halogenated and aromatic hydrocarbons from materials containing them. |
WO2001034245A1 (en) * | 1999-11-11 | 2001-05-17 | Kiror B.V. | Method for the demolition and the removal of halogenated and aromatic hydrocarbons from materials that contain them |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8127 | New person/name/address of the applicant |
Owner name: MANDL, JOHANNES, 5450 NEUWIED, DE |
|
8139 | Disposal/non-payment of the annual fee |