AU610552B2 - Process for destroying chlorinated products at low temperature - Google Patents
Process for destroying chlorinated products at low temperature Download PDFInfo
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- AU610552B2 AU610552B2 AU10621/88A AU1062188A AU610552B2 AU 610552 B2 AU610552 B2 AU 610552B2 AU 10621/88 A AU10621/88 A AU 10621/88A AU 1062188 A AU1062188 A AU 1062188A AU 610552 B2 AU610552 B2 AU 610552B2
- Authority
- AU
- Australia
- Prior art keywords
- products
- bath
- chlorinated
- chloroaluminate
- sodium
- 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.)
- Ceased
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- 238000000034 method Methods 0.000 title claims abstract description 15
- 239000000843 powder Substances 0.000 claims description 11
- VSCWAEJMTAWNJL-UHFFFAOYSA-K aluminium trichloride Chemical compound Cl[Al](Cl)Cl VSCWAEJMTAWNJL-UHFFFAOYSA-K 0.000 claims description 10
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical group C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims description 7
- 229910052782 aluminium Inorganic materials 0.000 claims description 7
- 229910052751 metal Inorganic materials 0.000 claims description 7
- 239000002184 metal Substances 0.000 claims description 7
- 229910052708 sodium Inorganic materials 0.000 claims description 7
- 239000011734 sodium Substances 0.000 claims description 7
- 239000004411 aluminium Substances 0.000 claims description 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical group [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 6
- 230000006378 damage Effects 0.000 claims description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims 1
- 229910052799 carbon Inorganic materials 0.000 claims 1
- 125000004432 carbon atom Chemical group C* 0.000 abstract description 2
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 9
- 239000007792 gaseous phase Substances 0.000 description 8
- 239000000203 mixture Substances 0.000 description 6
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 239000007791 liquid phase Substances 0.000 description 4
- 229910001510 metal chloride Inorganic materials 0.000 description 4
- 239000012071 phase Substances 0.000 description 4
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 125000003118 aryl group Chemical group 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 150000002739 metals Chemical class 0.000 description 3
- 238000010926 purge Methods 0.000 description 3
- 239000007790 solid phase Substances 0.000 description 3
- OKISUZLXOYGIFP-UHFFFAOYSA-N 4,4'-dichlorobenzophenone Chemical compound C1=CC(Cl)=CC=C1C(=O)C1=CC=C(Cl)C=C1 OKISUZLXOYGIFP-UHFFFAOYSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 2
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 2
- 125000001931 aliphatic group Chemical group 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- CKAPSXZOOQJIBF-UHFFFAOYSA-N hexachlorobenzene Chemical compound ClC1=C(Cl)C(Cl)=C(Cl)C(Cl)=C1Cl CKAPSXZOOQJIBF-UHFFFAOYSA-N 0.000 description 2
- 229910052744 lithium Inorganic materials 0.000 description 2
- KWGKDLIKAYFUFQ-UHFFFAOYSA-M lithium chloride Chemical compound [Li+].[Cl-] KWGKDLIKAYFUFQ-UHFFFAOYSA-M 0.000 description 2
- 238000005192 partition Methods 0.000 description 2
- 239000012255 powdered metal Substances 0.000 description 2
- 239000011780 sodium chloride Substances 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- VZGDMQKNWNREIO-UHFFFAOYSA-N tetrachloromethane Chemical compound ClC(Cl)(Cl)Cl VZGDMQKNWNREIO-UHFFFAOYSA-N 0.000 description 2
- 231100000331 toxic Toxicity 0.000 description 2
- 230000002588 toxic effect Effects 0.000 description 2
- RZVAJINKPMORJF-UHFFFAOYSA-N Acetaminophen Chemical compound CC(=O)NC1=CC=C(O)C=C1 RZVAJINKPMORJF-UHFFFAOYSA-N 0.000 description 1
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 1
- 206010073478 Anaplastic large-cell lymphoma Diseases 0.000 description 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- RUYUCCQRWINUHE-UHFFFAOYSA-N Octachlorostyrene Chemical compound ClC(Cl)=C(Cl)C1=C(Cl)C(Cl)=C(Cl)C(Cl)=C1Cl RUYUCCQRWINUHE-UHFFFAOYSA-N 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical class [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 230000002745 absorbent Effects 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 125000004429 atom Chemical group 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- 239000012159 carrier gas Substances 0.000 description 1
- 239000003610 charcoal Substances 0.000 description 1
- SURLGNKAQXKNSP-DBLYXWCISA-N chlorin Chemical compound C\1=C/2\N/C(=C\C3=N/C(=C\C=4NC(/C=C\5/C=CC/1=N/5)=CC=4)/C=C3)/CC\2 SURLGNKAQXKNSP-DBLYXWCISA-N 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 150000001805 chlorine compounds Chemical class 0.000 description 1
- 238000004587 chromatography analysis Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- ONXPZLFXDMAPRO-UHFFFAOYSA-N decachlorobiphenyl Chemical group ClC1=C(Cl)C(Cl)=C(Cl)C(Cl)=C1C1=C(Cl)C(Cl)=C(Cl)C(Cl)=C1Cl ONXPZLFXDMAPRO-UHFFFAOYSA-N 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007123 defense Effects 0.000 description 1
- 230000005496 eutectics Effects 0.000 description 1
- -1 for example Chemical class 0.000 description 1
- 239000008246 gaseous mixture Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 125000000623 heterocyclic group Chemical group 0.000 description 1
- VHHHONWQHHHLTI-UHFFFAOYSA-N hexachloroethane Chemical compound ClC(Cl)(Cl)C(Cl)(Cl)Cl VHHHONWQHHHLTI-UHFFFAOYSA-N 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 1
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 1
- VVNXEADCOVSAER-UHFFFAOYSA-N lithium sodium Chemical compound [Li].[Na] VVNXEADCOVSAER-UHFFFAOYSA-N 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 125000002950 monocyclic group Chemical group 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000000575 pesticide Substances 0.000 description 1
- 150000003071 polychlorinated biphenyls Chemical class 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 235000011164 potassium chloride Nutrition 0.000 description 1
- 239000005297 pyrex Substances 0.000 description 1
- 238000004445 quantitative analysis Methods 0.000 description 1
- 229910052712 strontium Inorganic materials 0.000 description 1
- CIOAGBVUUVVLOB-UHFFFAOYSA-N strontium atom Chemical compound [Sr] CIOAGBVUUVVLOB-UHFFFAOYSA-N 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 239000003643 water by type Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
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
- A62D3/32—Processes for making harmful chemical substances harmless or less harmful, by effecting a chemical change in the substances by reacting with chemical agents by treatment in molten chemical reagent, e.g. salts or metals
-
- 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
- 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)
- Health & Medical Sciences (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
- Developing Agents For Electrophotography (AREA)
- Dental Preparations (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Fire-Extinguishing Compositions (AREA)
- Glass Compositions (AREA)
- Luminescent Compositions (AREA)
- Manufacturing Of Magnetic Record Carriers (AREA)
- Paper (AREA)
- Photoreceptors In Electrophotography (AREA)
- Processing Of Solid Wastes (AREA)
- Food Preservation Except Freezing, Refrigeration, And Drying (AREA)
Abstract
1. Process for destroying chlorinated organic products containing more than 2 carbon atoms, in which these products are brought into contact with a bath of at least one chloroaluminate, characterized in that the initial concentration of the chlorinated organic products in the bath is 4000 ppm or less and preferably 2000 ppm or less.
Description
10552 Form COMMONWEALTH OF AUSTRALIA PATENTS ACT 1952469 COMPLETE SPECIFICATION
(ORIGINAL)
Class Application Number: Lodged: I t. Class I4Cdiiipleto Specification Lodged: Priority: Accepted; Published: Iielpted Art: 0 Address of Applicant: 0 Actual Inventor.
Address for Service: ATOCH EM La Defense 10 4 8 Cours Michelet 92800 Puteaux, France JACQUES DUGUA EDWD. WATERS SONS, 50 QUEEQN STREET, NIELBOURNE, AUSTRALIA, 3000.
Complete Specification for the Invention entitled: PROCESS FOR DESTROYING CHLORINATED PRODUCTS AT LOW
TEMPERATURE
The following statement Is a full descriptio~n of this invention, Including the best method of performing It known to us s 1- PROCESS FOR DESTROYING CHLORINATED PRODUCTS AT LOW TEMPERATURE The present invention relates to a process for destroying chlorinated organic products and more particularly aromatic products and polychLorobiphenyls.
Certain dielectric liquids contain chlorinated organic products and after a certain period of operation a* s they decompose and need to be replaced. It is sometimes SSSr possible to regenerate them completely or partially. It 10 is often necessary to destroy a proportion of these liquids.
Chlorinated organic products, as well as certain pesticides and chlorinated aromatics .such as hexachlorobenzene or polychlorobiphenyls (PCB) can give rise to toxic products when they ar burnt like an ordinary flamo mable product.
0oo In order to avoid generating toxic products these oo chlorinated products are destroyed at a high temperature o Go and under specific conditions.
A paper in Sci. Total Environ. 1978, 10 51-9 describes the destruction of polychlorobiphenyls (PCB) by incineration with a residence time of more than 2 seconds.
Another paper, Proc. Ann. Meet Air Pollut.
Control Assoc. 1977 (Vol 2) paper No. 33, describes a 99.9995% destruction of PCBs at 1000C with a residence time of 2 seconds.
European Patent EP 170,714 describes the destruction of PCes by reaction with molten aluminium or an 1 -2aluminium-base eutectic; the reaction takes place above 382°C.
A much simpler process for destroying these products, capable of operating below 300 0 C, has now been found, The present .invention is a process for destroying chlorinated organic products containing more than 2 car- 0 0 bon atoms, characterized in that these products are placed in contact with a bath of at Least one chloroalumindte.
Various chloroaluminates or their mixtures can be 0 10 employed. For example, potassium, lithium, sodium, calcium, strontium or ammonium chloroaluminates.
*o In this text, the name chloroaluminate is given 0 p to any mixture of anhydrous aluminium chloride and one or more metal chlorides.
Sodium chLoroaluminate, which is preferably em- *ooo ployed, denotes a mixture of aluminium chloride and of 0oo00 6 0 sodium chloride in any proportions and not only the equimolar mixture. Sodium chloroaluminate may also contain lithium and/or potassium chlorides. It is therefore possible to have a mixture of aluminium chloride, sodium chloride and lithium chloride, which is called sodium lithium chloroaluminate.
It is also preferred that the sodium chloroaluminate should contain at least 50 mol% of aluminium chloride and should have a melting point below 200 0
C.
The invention applies to all chlorinated organic products containing more than 2 carbon atoms, but it is, first and foremost, usable in the case of aliphatic, cyclic, mono- or polycyclic aromatic and heterocyclic products.
The invention relates most especially to perchlorinated aliphatic products and, among aromatic products, to poLychlorobiphenyls.
The quantity of chlorinated organic products to be destroyed is advantageously less than 5000 ppm of -he chloroaluminate and preferably less than 2000 ppm.
These products may be in any form. They may,, in t c Oc particular be in a solid phase, for example absorbed on active charcoal.
4 o The process according to the invention consists 9 9 in placing the chlorinated product in contact with the bath of chloroaLuminate.
99 When the chlorinated product is in a solid phase, 9 o0 this solid phase may be poured into the bath of chloroaluminate, preferably stirred. Care is taken to keep the bath molten, by heating if necessary. The procedure is 0..0 similar if the chlorinated products are in a liquid phase.
o o- 0* s In most cases the chlorinated products which are to be destroyed are in a gaseous phase by themselves or mixed with light chlorinated products and/or carrier gases.
For example, this may be a gas produced by a combustion and will then consist of nitrogen containing carbon dioxide, carbon monoxide, chlorinated products and possibly oxygen.
However, it may be any gaseous mixture taken from any process.
It is preferable that the chlorinated products should be in an anhydrous phase. The gas containing the chlorinated products may be dried by contact with an IC-C- -I 4 absorbent, for example alumina or glycol.
This gaseous phase containing the chlorinated products to be destroyed is then placed in contact with the chloroaluminate using any means for placing a liquid phase in contact with a gaseous phase. This may be a plate- or packed column. The gaseous phase may also be •introduced into a stirred vat of chloroalurminate through a dip tube or through a tube entering via the bottom of or@o 0o"0 the vat.
0000 10 The various chlorinated organic products may partition between the liquid and vapour phases of the chloro- 0 atuminate bath. Similarly, in the case of the products which accompany these chlorinated products. A plate- or packed column may bo employed in order to ensure continuous 0 0 circulation and stirring of the liquid and gaseous phases a00. and good contact between the gaseous products and the S o .0 o chloroaluminate bath. It is also possible to operate o oo using a cascade of stirred reactors. The chlorinated organic products are kept in contact with the chloroaluminate bath for the period required to destroy them. The residence time may vary within wide limits but is generally between a few minutes and a few hours.
Although i is possible to operate at any temperature, provided chat the chloroaluminate is liquid, it is preferable for this to be done below 300°C and preferably between 200 and 300 0
C.
The rate of destruction of the chlorinated products, i I I c especially aromatic products, increases with the temperature of the chloroaluminate.
Light products of decomposition of the chlorinated products which it was intended to destroy may be found in the gaseous phase of the chloroaluminate bath; for example carbon tetrachloride and/or hexachloroethane. The chlorinated organic products which it was intended to destroy o are not to be found in the vapour phase of the chl roaluminate bath. When the chloroaluminate bath is analysed 10 after the period of contact between the chlorinated products and the chloroatuminate has been observed, the organic products which it was intended to destroy are not found.
The chloroaluminate bath may also be purged at o regular intervals to avoid the accumulation of products which are insoluble or which cannot remain in suspension in the bath. No trace of the chlorinated organic products 9oo o o 0 .ooo is found in this purge either. It is concluded, therefore, that the chlorinated products which it was intended to destroy h.ave disappeared.
In a preferred embodiment of the invention, one or more powdered metals chosen from reducing metals such as, for example, aluminium or zinc, are added to the chloroaluminate bath. It is preferable to employ a powder whose mean particle size is less than 500 u. When metals are employed, the chlorinated organic products are completely eliminated as previously but at a markedly higher rate, of the order of several times to several tens of 6- 0 0O S 0° *9 1g 5 aPe 0@006o 0 5 *0 8 0 *0 0 0 0 o o 0000 00 0 9 0 0o a so ao o orc times the previous rate.
A consumption of the powdered metal (or metals) is observed, and this may mean that chloride has formed, taking up chlorine from the chlorin.ated organic products when they are being destroyed. There is no limit to the quantity of metal powder to be introduced into the chloroaluminate. It is preferable to employ aluminium powder; up to 5 or 10% by weight of aluminium powder may be placed in the chloroaluminate bath. It is found that the rate of destruction of the chlorinated products increases with the quantity of aluminium powder and with the temperature of the chloroaluminate bath. It is preferable to stir the bath so that the metal powder is well dispersed in the bath. The metal chloride or chlorides which have been produced may mix with the chLoroatuminate bath and may partition between the liquid and gaseous phases. If necessary, the metal chlorides may be removed from the gaseous phase by treating it with a hydroxide, such as sodium hydroxide or potassium hydroxide.
The following examples illustrate the invention: EXAMPLE 1 500 g of sodium chtoroaluminate in which the ratio
ALCL
3 /Nati I are introduced into an electrically heated i-litre Pyrex round flask fitted with a propeller stirrer rotating at 300 rev/min. The product is heated to 200 C, stirred, and then 0.2 g of hexachlorobenzene and 0.1 g of decachlorobiphenyl are introduced. After 1 hour at 200 0
C,
7the moLten bath is purged for 15 minutes with a stream of L/h of N2, which is washed in a bubbler containing 100 mL of hex~ane.
The, chlorinated organic compounds in the finaL bath and in the hexane are determined by gas phase ~.trO chromatography.
The results are shown in Table 1.
EXAMPLE 2 The same test is carried out, but 5% of fine alum- 10 inium powder (Pechiney XY 49 grade) are additionally introduced into the chioroaLuminate bath. After I hour at 200 0 C followed by purging with 50 L/h of N 2 for 15 min, 0 a sampke of the bath and of hexane is taken for quantitative analysis.
The resutts are shown in Table 1.
too TABLE 1 CHLOR WITHOUT At WITH 5% Al ORGANIC 1 %of-l Y. I of PRO&LOCTS I BATH lhexane I product I BATH thexane I product! s t ta r t f ina( srmo st ar t f 1inaL~ removed' 6 I C 6 1 200 lift 1 13.2 1 37.7 ZI 2,00 129 1 3.5 1 83.7 1 1 I DCBP* 1 100 141.3 1 0.40! 58.3 2! 100 1 3.8 t 0.2 196 *DCBPi decachiorobiphenyt -VaLues in mg L I_ Li I~-r
I
-8o a 0 O 0 0n 0 0 60 00 0 0 00 00 0 0 00 p 00Q EXAMPLE 3 The operation is carried out in the same apparatus employed for Examples 1 and 2, but the operating conditions are changed: bath temperature: 250 0
C
weight of the chdoroaLuminate bath: 500 g addition of 5% of Al powder (Pechiney XY 49) duration of the test: 2 hours nitrogen purge after 2 hours: 15 mini initial addition of: 500 mg of hexachtorobenzene 500 mg of decachtorobiphenyL The resuLts are given in Table 2.
EXAMPLE 4 Same test as in Example no. 3 but the duration of the test is 4 hours.
The results are shown in Table 2.
TABLE 2 3- 1 I jCHLOR- I DURATION 2 h DURATION 4 h I INATEO D 1
ORGANIC
1 3 1 f I I I rof I IPRODCUTS1 BATH I hexane Iproductl BATH Ihexane I productl 1 3 1 1 remoyedl I tremoved I I 3start I finaL! I i start If ina 3 1 I Q 2.5 1 0.7 1 1 1 0.3 1 0.1 1 1 1 C 4 I I I I I I I 1 I ic I 1 110 3 5 1 t 1 1.5 1 1.3 1 6 5 1 1 I 1 1 1 i CVCl 1 500 1 n a 3 1 97ie 1 500 1 1.3 1 3 1 99.15 1 1 1 6 t 1 1 1 I I t I DCBP 1 500 1 6 1 0.2 1 94.8 1 500 1 3 1 0.16 t9f.4 1, I PS* 1 1 0.021 0.0021 1 1 0.11 0.0081 1 I I I I I- Irr*y Ir I 3 PS: perchlorostyrene Values in mg
Claims (4)
1.Pr-~cess for (,omplete one-step destruction of J chloriaated organic products containing more than 2 carbon At~oms characterized in that these products are placed in contact with a bath of at least one chioroaluminate as hereinbefore defined containing at least one metal powder and at a temperature between 2501C 300 0 C, said chlorinated organic produ-,ts b~ing present in an amount of less than 2000 ppm of the chioroaluminate.
2. Process according to claim 1, characterized in that the chloroaluiuinate is sodium chloroaminAte. 4404 *0 4,040
3. Process atccording t claim 2, characteriziad in the 0 the sodium chioroaluminate contains at least 50 zuol% of aluminium chloride.
4. Process according to cJlaim 1, characterized in that oooooo the metal powder is preferably aluminium, Process according to, either of claimis I and 4, characteriOO4 in that~ the mean parti~cle size of the powder is bel~ow 5O00p. 00 00 DATED this 12th day of February, 1991. 0.00000 4, ATOCIUEIl WATERMARK PATENT a TR~ADE~ MAR~K ATTORNEYS f THE ATVttJM', 20D FLOOR 290 BURWOOO ROAD V.2.T~THC-RN VIC. 3122.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8700669A FR2609652B1 (en) | 1987-01-21 | 1987-01-21 | PROCESS FOR THE DESTRUCTION OF LOW TEMPERATURE CHLORINE PRODUCTS |
| FR8700669 | 1987-01-21 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| AU1062188A AU1062188A (en) | 1988-07-28 |
| AU610552B2 true AU610552B2 (en) | 1991-05-23 |
Family
ID=9347122
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AU10621/88A Ceased AU610552B2 (en) | 1987-01-21 | 1988-01-20 | Process for destroying chlorinated products at low temperature |
Country Status (17)
| Country | Link |
|---|---|
| EP (1) | EP0277858B1 (en) |
| JP (1) | JPS63192468A (en) |
| CN (1) | CN1012142B (en) |
| AT (1) | ATE51531T1 (en) |
| AU (1) | AU610552B2 (en) |
| CA (1) | CA1333404C (en) |
| DE (1) | DE3860064D1 (en) |
| DK (1) | DK166432B1 (en) |
| ES (1) | ES2014508B3 (en) |
| FI (1) | FI880241L (en) |
| FR (1) | FR2609652B1 (en) |
| GR (1) | GR3000437T3 (en) |
| IE (1) | IE60535B1 (en) |
| IN (1) | IN170563B (en) |
| NO (1) | NO174088C (en) |
| NZ (1) | NZ223232A (en) |
| PT (1) | PT86577B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4931167A (en) * | 1987-10-13 | 1990-06-05 | Advanced Refinery Technology | Degradation of polychlorinated biphenyls |
| US5490919A (en) * | 1990-08-14 | 1996-02-13 | State Of Isreal, Atomic Energy Commission | Process for the dehalogenation of organic compounds |
| JP4458585B2 (en) * | 1999-09-09 | 2010-04-28 | 祝治 朝倉 | Methods for decomposing and detoxifying harmful organic compounds |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4447262A (en) * | 1983-05-16 | 1984-05-08 | Rockwell International Corporation | Destruction of halogen-containing materials |
| EP0170714A1 (en) * | 1982-04-06 | 1986-02-12 | Clifford G. Shultz | Destruction of polychlorinated biphenyls and other hazardous halogenated hydrocarbons |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5257149A (en) * | 1975-11-07 | 1977-05-11 | Gunma Daigakuchiyou | Method of decomposing halogenated aromatic compounds to carboneous substance using molten salts |
-
1987
- 1987-01-21 FR FR8700669A patent/FR2609652B1/en not_active Expired - Lifetime
-
1988
- 1988-01-12 NO NO880104A patent/NO174088C/en unknown
- 1988-01-13 CA CA000556427A patent/CA1333404C/en not_active Expired - Fee Related
- 1988-01-14 DE DE8888400074T patent/DE3860064D1/en not_active Expired - Fee Related
- 1988-01-14 EP EP88400074A patent/EP0277858B1/en not_active Expired - Lifetime
- 1988-01-14 AT AT88400074T patent/ATE51531T1/en not_active IP Right Cessation
- 1988-01-14 ES ES88400074T patent/ES2014508B3/en not_active Expired - Lifetime
- 1988-01-19 IN IN34/MAS/88A patent/IN170563B/en unknown
- 1988-01-19 JP JP63009439A patent/JPS63192468A/en active Pending
- 1988-01-19 NZ NZ223232A patent/NZ223232A/en unknown
- 1988-01-20 FI FI880241A patent/FI880241L/en not_active Application Discontinuation
- 1988-01-20 AU AU10621/88A patent/AU610552B2/en not_active Ceased
- 1988-01-20 CN CN88100299A patent/CN1012142B/en not_active Expired
- 1988-01-20 PT PT86577A patent/PT86577B/en unknown
- 1988-01-20 DK DK023288A patent/DK166432B1/en not_active IP Right Cessation
- 1988-01-20 IE IE13788A patent/IE60535B1/en not_active IP Right Cessation
-
1990
- 1990-04-18 GR GR90400235T patent/GR3000437T3/en unknown
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0170714A1 (en) * | 1982-04-06 | 1986-02-12 | Clifford G. Shultz | Destruction of polychlorinated biphenyls and other hazardous halogenated hydrocarbons |
| US4447262A (en) * | 1983-05-16 | 1984-05-08 | Rockwell International Corporation | Destruction of halogen-containing materials |
Also Published As
| Publication number | Publication date |
|---|---|
| FI880241A7 (en) | 1988-07-22 |
| FI880241L (en) | 1988-07-22 |
| IN170563B (en) | 1992-04-11 |
| ES2014508B3 (en) | 1990-07-16 |
| NO174088B (en) | 1993-12-06 |
| NZ223232A (en) | 1991-05-28 |
| PT86577A (en) | 1988-02-01 |
| PT86577B (en) | 1991-12-31 |
| EP0277858A1 (en) | 1988-08-10 |
| FI880241A0 (en) | 1988-01-20 |
| DK23288D0 (en) | 1988-01-20 |
| FR2609652B1 (en) | 1992-05-15 |
| CN1012142B (en) | 1991-03-27 |
| JPS63192468A (en) | 1988-08-09 |
| NO174088C (en) | 1994-03-16 |
| IE880137L (en) | 1988-07-21 |
| DE3860064D1 (en) | 1990-05-10 |
| FR2609652A1 (en) | 1988-07-22 |
| IE60535B1 (en) | 1994-07-27 |
| GR3000437T3 (en) | 1991-06-28 |
| CN88100299A (en) | 1988-08-03 |
| ATE51531T1 (en) | 1990-04-15 |
| EP0277858B1 (en) | 1990-04-04 |
| CA1333404C (en) | 1994-12-06 |
| NO880104L (en) | 1988-07-22 |
| AU1062188A (en) | 1988-07-28 |
| DK166432B1 (en) | 1993-05-24 |
| DK23288A (en) | 1988-07-22 |
| NO880104D0 (en) | 1988-01-12 |
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