EP0526956B1 - Verfahren zur Aufbereitung von Quecksilberverbindungen, Kaliumchlorat und Antimontrisulfid enthaltenden Zündhütchen - Google Patents
Verfahren zur Aufbereitung von Quecksilberverbindungen, Kaliumchlorat und Antimontrisulfid enthaltenden Zündhütchen Download PDFInfo
- Publication number
- EP0526956B1 EP0526956B1 EP92250144A EP92250144A EP0526956B1 EP 0526956 B1 EP0526956 B1 EP 0526956B1 EP 92250144 A EP92250144 A EP 92250144A EP 92250144 A EP92250144 A EP 92250144A EP 0526956 B1 EP0526956 B1 EP 0526956B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- mercury
- iron
- percussion caps
- potassium chlorate
- primers
- 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
- 238000000034 method Methods 0.000 title claims abstract description 25
- VKJKEPKFPUWCAS-UHFFFAOYSA-M potassium chlorate Chemical compound [K+].[O-]Cl(=O)=O VKJKEPKFPUWCAS-UHFFFAOYSA-M 0.000 title claims abstract description 16
- 150000002731 mercury compounds Chemical class 0.000 title claims description 9
- NVWBARWTDVQPJD-UHFFFAOYSA-N antimony(3+);trisulfide Chemical compound [S-2].[S-2].[S-2].[Sb+3].[Sb+3] NVWBARWTDVQPJD-UHFFFAOYSA-N 0.000 title claims description 5
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 claims abstract description 34
- 229910052753 mercury Inorganic materials 0.000 claims abstract description 24
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical compound [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 claims abstract description 20
- 238000006243 chemical reaction Methods 0.000 claims abstract description 20
- 239000001103 potassium chloride Substances 0.000 claims abstract description 9
- 235000011164 potassium chloride Nutrition 0.000 claims abstract description 9
- 239000000203 mixture Substances 0.000 claims abstract description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 87
- 229910052742 iron Inorganic materials 0.000 claims description 28
- 239000000243 solution Substances 0.000 claims description 23
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 21
- 239000007864 aqueous solution Substances 0.000 claims description 15
- -1 iron ions Chemical class 0.000 claims description 10
- 239000004615 ingredient Substances 0.000 claims description 9
- MHWLNQBTOIYJJP-UHFFFAOYSA-N mercury difulminate Chemical compound [O-][N+]#C[Hg]C#[N+][O-] MHWLNQBTOIYJJP-UHFFFAOYSA-N 0.000 claims description 9
- 229940008718 metallic mercury Drugs 0.000 claims description 8
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 6
- 239000003638 chemical reducing agent Substances 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 4
- 238000007885 magnetic separation Methods 0.000 claims description 3
- 239000000344 soap Substances 0.000 claims description 3
- 238000009527 percussion Methods 0.000 claims 8
- 239000002360 explosive Substances 0.000 abstract description 14
- 230000000712 assembly Effects 0.000 abstract description 11
- 238000000429 assembly Methods 0.000 abstract description 11
- 229910001369 Brass Inorganic materials 0.000 abstract description 6
- 239000010951 brass Substances 0.000 abstract description 6
- 239000000126 substance Substances 0.000 abstract description 6
- 150000001875 compounds Chemical class 0.000 abstract description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract description 2
- 229910052760 oxygen Inorganic materials 0.000 abstract description 2
- 239000001301 oxygen Substances 0.000 abstract description 2
- VHGZFJXJHGPXML-UHFFFAOYSA-J potassium antimony(3+) tetrachlorate Chemical compound [Sb+3].Cl(=O)(=O)[O-].[K+].Cl(=O)(=O)[O-].Cl(=O)(=O)[O-].Cl(=O)(=O)[O-] VHGZFJXJHGPXML-UHFFFAOYSA-J 0.000 abstract description 2
- 230000014759 maintenance of location Effects 0.000 abstract 1
- 230000037452 priming Effects 0.000 abstract 1
- 238000012958 reprocessing Methods 0.000 abstract 1
- 239000010949 copper Substances 0.000 description 15
- VTLYFUHAOXGGBS-UHFFFAOYSA-N Fe3+ Chemical compound [Fe+3] VTLYFUHAOXGGBS-UHFFFAOYSA-N 0.000 description 10
- 150000002500 ions Chemical class 0.000 description 7
- 230000000694 effects Effects 0.000 description 6
- 229910052802 copper Inorganic materials 0.000 description 5
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 5
- 229940100892 mercury compound Drugs 0.000 description 5
- 239000000047 product Substances 0.000 description 5
- 239000002699 waste material Substances 0.000 description 5
- 239000002351 wastewater Substances 0.000 description 5
- XTEGARKTQYYJKE-UHFFFAOYSA-M Chlorate Chemical compound [O-]Cl(=O)=O XTEGARKTQYYJKE-UHFFFAOYSA-M 0.000 description 4
- USXDFAGDIOXNML-UHFFFAOYSA-N Fulminate Chemical compound [O-][N+]#[C-] USXDFAGDIOXNML-UHFFFAOYSA-N 0.000 description 4
- 229940007424 antimony trisulfide Drugs 0.000 description 4
- BERDEBHAJNAUOM-UHFFFAOYSA-N copper(I) oxide Inorganic materials [Cu]O[Cu] BERDEBHAJNAUOM-UHFFFAOYSA-N 0.000 description 4
- KRFJLUBVMFXRPN-UHFFFAOYSA-N cuprous oxide Chemical compound [O-2].[Cu+].[Cu+] KRFJLUBVMFXRPN-UHFFFAOYSA-N 0.000 description 4
- 238000000586 desensitisation Methods 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 230000007935 neutral effect Effects 0.000 description 4
- 229910052959 stibnite Inorganic materials 0.000 description 4
- 229910000497 Amalgam Inorganic materials 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 150000002730 mercury Chemical class 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- OAKJQQAXSVQMHS-UHFFFAOYSA-N Hydrazine Chemical compound NN OAKJQQAXSVQMHS-UHFFFAOYSA-N 0.000 description 2
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 2
- 239000007795 chemical reaction product Substances 0.000 description 2
- TVWHTOUAJSGEKT-UHFFFAOYSA-N chlorine trioxide Chemical compound [O]Cl(=O)=O TVWHTOUAJSGEKT-UHFFFAOYSA-N 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 150000002429 hydrazines Chemical class 0.000 description 2
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 230000001603 reducing effect Effects 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 229910052718 tin Inorganic materials 0.000 description 2
- QNRATNLHPGXHMA-XZHTYLCXSA-N (r)-(6-ethoxyquinolin-4-yl)-[(2s,4s,5r)-5-ethyl-1-azabicyclo[2.2.2]octan-2-yl]methanol;hydrochloride Chemical compound Cl.C([C@H]([C@H](C1)CC)C2)CN1[C@@H]2[C@H](O)C1=CC=NC2=CC=C(OCC)C=C21 QNRATNLHPGXHMA-XZHTYLCXSA-N 0.000 description 1
- NYYSPVRERVXMLJ-UHFFFAOYSA-N 4,4-difluorocyclohexan-1-one Chemical compound FC1(F)CCC(=O)CC1 NYYSPVRERVXMLJ-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 238000003915 air pollution Methods 0.000 description 1
- 239000012670 alkaline solution Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 239000007900 aqueous suspension Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005422 blasting Methods 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- DZRJLJPPUJADOO-UHFFFAOYSA-N chaetomin Natural products CN1C(=O)C2(Cc3cn(C)c4ccccc34)SSC1(CO)C(=O)N2C56CC78SSC(CO)(N(C)C7=O)C(=O)N8C5Nc9ccccc69 DZRJLJPPUJADOO-UHFFFAOYSA-N 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- XTEGARKTQYYJKE-UHFFFAOYSA-N chloric acid Chemical compound OCl(=O)=O XTEGARKTQYYJKE-UHFFFAOYSA-N 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000004200 deflagration Methods 0.000 description 1
- 239000007857 degradation product Substances 0.000 description 1
- 230000032798 delamination Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 230000003301 hydrolyzing effect Effects 0.000 description 1
- 239000003999 initiator Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 235000010755 mineral Nutrition 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 229940046063 potassium chlorate Drugs 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000003380 propellant Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000006479 redox reaction Methods 0.000 description 1
- 239000008149 soap solution Substances 0.000 description 1
- AKHNMLFCWUSKQB-UHFFFAOYSA-L sodium thiosulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=S AKHNMLFCWUSKQB-UHFFFAOYSA-L 0.000 description 1
- 235000019345 sodium thiosulphate Nutrition 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000007669 thermal treatment Methods 0.000 description 1
- 239000002966 varnish Substances 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
- 229910000859 α-Fe Inorganic materials 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
- A62D3/37—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
-
- C—CHEMISTRY; METALLURGY
- C06—EXPLOSIVES; MATCHES
- C06B—EXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
- C06B21/00—Apparatus or methods for working-up explosives, e.g. forming, cutting, drying
- C06B21/0091—Elimination of undesirable or temporary components of an intermediate or finished product, e.g. making porous or low density products, purifying, stabilising, drying; Deactivating; Reclaiming
-
- 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
- A62D2101/06—Explosives, propellants or pyrotechnics, e.g. rocket fuel or napalm
-
- 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
- A62D2101/40—Inorganic substances
-
- 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
- A62D2101/40—Inorganic substances
- A62D2101/43—Inorganic substances containing heavy metals, in the bonded or free state
-
- 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
- A62D2101/40—Inorganic substances
- A62D2101/47—Inorganic substances containing oxygen, sulfur, selenium or tellurium, i.e. chalcogen
-
- 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
- A62D2101/40—Inorganic substances
- A62D2101/49—Inorganic substances containing halogen
Definitions
- the invention relates to a method for the preparation of mercury compounds, potassium chlorate and antimony trisulfide containing primers of cartridges and similar assemblies of military products.
- the treatment process removes the ignition effect of primers in primers and similar assemblies by converting the initial explosive contained in inert, non-ignitable compounds or substances and by converting the potassium chloride contained in the primer, which serves as an oxygen carrier, into potassium chloride.
- the invention thus relates primarily to the field of military technology and relates to the desensitization of detonators, such as those used in primers, ignition screws, detonating devices and chemical initiators of various ammunition, locking and clearing agents, for the purpose of safely removing such military products, to ensure the safe transportation of assemblies containing such primers, as well as the safe processing of these mixtures or assemblies and products.
- detonators such as those used in primers, ignition screws, detonating devices and chemical initiators of various ammunition, locking and clearing agents
- CS-A 267 047 describes the recovery of mercury from mercury-fulminate waste from explosives.
- the waste is reacted in a water suspension with Mg powder.
- the Mg / Hg ratio is (1 to 5) to 10.
- the Mg fulminate obtained and the excess Mg are concentrated using a Mineral acid, especially HCL, decomposes, and the mercury is separated.
- JP-A-60 222 190 also describes the disposal of waste water containing mercury.
- a solution containing iron ions is added to the waste water.
- the pH is adjusted to 10 to 12 with an alkaline solution.
- the reaction which is constantly ventilated, produces Hg ferrite.
- the mercury ions in the water are reduced to metallic mercury by reducing agents.
- the resulting degradation products must in any case be sent to a special waste landfill or pollute the user due to environmental damage in the form of wastewater pollution or contamination of scrap, earth, etc.
- the aim of the invention is to find an economically justifiable and reliable process alternative for canceling the ignition effect of primers in primers and assemblies or products of a similar purpose and thus to enable their safe transport and rational processing.
- the invention has for its object to find a simple, safe and rational method for desensitizing large quantities of primers and similar assemblies based on primers containing mercury fulminate and thus to enable the environmentally friendly disposal of this mercury-containing waste from ammunition development.
- the primary task for the environmentally friendly disposal of the mercury-containing primers was to remove the ignition effect by chemical conversion of the explosives contained. Subsequent demercurization of the resulting mercury-containing waste is possible with the current state of the art.
- the iron passing into the ionic form largely precipitates as Fe2O3.
- the primers in cartridge cases are pretreated in a water bath heated to 90 ° C for 2 h. In a subsequent thermal aftertreatment, the residual water adhering to the parts is evaporated.
- the evaporation temperature is kept at 100 ° C.
- the prolonged exposure to water vapor at approx. 100 ° C loosens the connection between the cartridge and primer.
- the conversion of mercury fullminate into pyrofulmin is initiated.
- the grain boundaries of the rhombic fulminate crystals are partially destroyed and the reaction areas are enlarged.
- the primers pretreated in this way, still pressed into the cartridge cases, are separated from the cartridge case within 3 to 12 hours and subjected to a treatment in the following manner: 8 kg of iron in the form of the anvil parts are added to a quantity of 10 kg primer (basic primer with mercury fullminate).
- a weakly alkaline soap solution (pH 7.5 to 8.5; 1 kg of industrial soap to 400 l of water) is poured over this mixture until the liquid is about 5 cm above the solid.
- the batch must stand until the hard-pressed primer in the primer has completely penetrated the medium and the conversion of the mercury fullminate with reaction with iron ions into an inert mercury compound or metallic mercury and the conversion of the potassium chlorate into potassium chloride has taken place.
Landscapes
- Chemical & Material Sciences (AREA)
- General Chemical & Material Sciences (AREA)
- Emergency Management (AREA)
- General Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Chemistry (AREA)
- Business, Economics & Management (AREA)
- Health & Medical Sciences (AREA)
- Processing Of Solid Wastes (AREA)
- Adhesives Or Adhesive Processes (AREA)
- Catalysts (AREA)
- Paints Or Removers (AREA)
- Fire-Extinguishing Compositions (AREA)
- Manufacture And Refinement Of Metals (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE4123225 | 1991-07-11 | ||
| DE4123225A DE4123225C1 (enrdf_load_stackoverflow) | 1991-07-11 | 1991-07-11 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP0526956A2 EP0526956A2 (de) | 1993-02-10 |
| EP0526956A3 EP0526956A3 (en) | 1993-03-03 |
| EP0526956B1 true EP0526956B1 (de) | 1995-11-15 |
Family
ID=6436055
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP92250144A Expired - Lifetime EP0526956B1 (de) | 1991-07-11 | 1992-06-10 | Verfahren zur Aufbereitung von Quecksilberverbindungen, Kaliumchlorat und Antimontrisulfid enthaltenden Zündhütchen |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP0526956B1 (enrdf_load_stackoverflow) |
| CN (1) | CN1068415A (enrdf_load_stackoverflow) |
| AT (1) | ATE130203T1 (enrdf_load_stackoverflow) |
| DE (2) | DE4123225C1 (enrdf_load_stackoverflow) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4243337C1 (de) * | 1992-12-21 | 1993-12-16 | Buck Chem Tech Werke | Verfahren zur Aufarbeitung von Schwarzpulver enthaltendem pyrotechnischem Material sowie die Verwendung des dabei anfallenden wiederverwertbaren Materials |
| US6011193A (en) * | 1997-06-20 | 2000-01-04 | Battelle Memorial Institute | Munitions treatment by acid digestion |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE757442A (fr) * | 1969-10-14 | 1971-03-16 | France Etat | Procede de traitement des vieilles poudres de guerre, en vue derecuperer la nitrocellulose |
| CH633497A5 (de) * | 1977-03-30 | 1982-12-15 | Kernforschungsanlage Juelich | Verfahren zur reduktion von reduzierbaren schadstoffen in waessrigen loesungen. |
| DE3913479C1 (en) * | 1989-04-24 | 1990-08-23 | Dr. Ing. Koehler Gmbh Ingenieurbuero, 3150 Peine, De | Disarming toxic and/or explosive objects - involves dismantling based on investigation on measuring after transport in plastics jacket |
| DE3920487A1 (de) * | 1989-06-22 | 1991-01-03 | Wacker Chemie Gmbh | Verfahren zur entfernung von quecksilber und quecksilbersalzen aus waessrigen fluessigkeiten |
| DE4010757C1 (enrdf_load_stackoverflow) * | 1990-04-04 | 1991-08-01 | Rheinmetall Gmbh, 4000 Duesseldorf, De |
-
1991
- 1991-07-11 DE DE4123225A patent/DE4123225C1/de not_active Expired - Fee Related
-
1992
- 1992-06-10 AT AT92250144T patent/ATE130203T1/de not_active IP Right Cessation
- 1992-06-10 DE DE59204321T patent/DE59204321D1/de not_active Expired - Fee Related
- 1992-06-10 EP EP92250144A patent/EP0526956B1/de not_active Expired - Lifetime
- 1992-07-11 CN CN92105677A patent/CN1068415A/zh active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| EP0526956A2 (de) | 1993-02-10 |
| CN1068415A (zh) | 1993-01-27 |
| ATE130203T1 (de) | 1995-12-15 |
| EP0526956A3 (en) | 1993-03-03 |
| DE59204321D1 (de) | 1995-12-21 |
| DE4123225C1 (enrdf_load_stackoverflow) | 1992-11-05 |
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