DE3879205D1 - Zersetzung von fluechtigen, halogenierten organischen verbindungen in gasen und waessrigen loesungen. - Google Patents
Zersetzung von fluechtigen, halogenierten organischen verbindungen in gasen und waessrigen loesungen.Info
- Publication number
- DE3879205D1 DE3879205D1 DE8888309759T DE3879205T DE3879205D1 DE 3879205 D1 DE3879205 D1 DE 3879205D1 DE 8888309759 T DE8888309759 T DE 8888309759T DE 3879205 T DE3879205 T DE 3879205T DE 3879205 D1 DE3879205 D1 DE 3879205D1
- Authority
- DE
- Germany
- Prior art keywords
- bed
- aqueous solutions
- gases
- decomposition
- volatile
- 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
- 239000007789 gas Substances 0.000 title abstract 4
- 239000007864 aqueous solution Substances 0.000 title abstract 3
- 238000000354 decomposition reaction Methods 0.000 title 1
- 150000002896 organic halogen compounds Chemical class 0.000 title 1
- 150000001875 compounds Chemical class 0.000 abstract 3
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 abstract 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract 2
- 239000003463 adsorbent Substances 0.000 abstract 2
- 230000001678 irradiating effect Effects 0.000 abstract 2
- 239000000741 silica gel Substances 0.000 abstract 2
- 229910002027 silica gel Inorganic materials 0.000 abstract 2
- 239000000243 solution Substances 0.000 abstract 1
- 239000012855 volatile organic compound Substances 0.000 abstract 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/78—Treatment of water, waste water, or sewage by oxidation with ozone
-
- 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
- A62D3/10—Processes for making harmful chemical substances harmless or less harmful, by effecting a chemical change in the substances by subjecting to electric or wave energy or particle or ionizing radiation
- A62D3/17—Processes for making harmful chemical substances harmless or less harmful, by effecting a chemical change in the substances by subjecting to electric or wave energy or particle or ionizing radiation to electromagnetic radiation, e.g. emitted by a laser
- A62D3/176—Ultraviolet radiations, i.e. radiation having a wavelength of about 3nm to 400nm
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/68—Halogens or halogen compounds
- B01D53/70—Organic halogen compounds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/72—Organic compounds not provided for in groups B01D53/48 - B01D53/70, e.g. hydrocarbons
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/08—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor
- B01J19/12—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor employing electromagnetic waves
- B01J19/122—Incoherent waves
- B01J19/123—Ultra-violet light
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/30—Treatment of water, waste water, or sewage by irradiation
- C02F1/32—Treatment of water, waste water, or sewage by irradiation with ultraviolet light
-
- 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
- A62D2101/04—Pesticides, e.g. insecticides, herbicides, fungicides or nematocides
-
- 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
-
- 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
- A62D2203/00—Aspects of processes for making harmful chemical substances harmless, or less harmful, by effecting chemical change in the substances
- A62D2203/02—Combined processes involving two or more distinct steps covered by groups A62D3/10 - A62D3/40
-
- 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
- A62D2203/00—Aspects of processes for making harmful chemical substances harmless, or less harmful, by effecting chemical change in the substances
- A62D2203/04—Combined processes involving two or more non-distinct steps covered by groups A62D3/10 - A62D3/40
-
- 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
- A62D2203/00—Aspects of processes for making harmful chemical substances harmless, or less harmful, by effecting chemical change in the substances
- A62D2203/10—Apparatus specially adapted for treating harmful chemical agents; Details thereof
-
- 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US07/250,842 US4941957A (en) | 1986-10-22 | 1988-09-30 | Decomposition of volatile ogranic halogenated compounds contained in gases and aqueous solutions |
Publications (1)
Publication Number | Publication Date |
---|---|
DE3879205D1 true DE3879205D1 (de) | 1993-04-15 |
Family
ID=22949383
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE8888309759T Expired - Lifetime DE3879205D1 (de) | 1988-09-30 | 1988-10-18 | Zersetzung von fluechtigen, halogenierten organischen verbindungen in gasen und waessrigen loesungen. |
Country Status (5)
Country | Link |
---|---|
US (1) | US4941957A (de) |
EP (1) | EP0360941B1 (de) |
AT (1) | ATE86517T1 (de) |
CA (1) | CA1329378C (de) |
DE (1) | DE3879205D1 (de) |
Families Citing this family (50)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IL94285A0 (en) * | 1990-05-04 | 1991-03-10 | Spectronix Ltd | Method and apparatus for providing ecological protection with respect to equipment using a halogenated hydrocarbon |
US5190626A (en) * | 1990-12-13 | 1993-03-02 | Allied-Signal Inc. | Process for removing vinylidene chloride and other unsaturated compounds from 1,1-dichloro-1-fluoroethane |
US5219534A (en) * | 1991-04-26 | 1993-06-15 | Reynolds Warren D | Process and apparatus for decontaminating air |
WO1992021917A1 (en) * | 1991-05-30 | 1992-12-10 | Roger Carson Later | Method and apparatus for decontamination of soils |
US5191261A (en) * | 1991-06-11 | 1993-03-02 | Purus, Inc. | Switching power supply for high-voltage flash lamps |
US5260036A (en) * | 1992-02-27 | 1993-11-09 | Process Technologies, Inc. | Method and apparatus for use in photochemically oxidizing gaseous halogenated organic compounds |
US5397552A (en) * | 1992-02-27 | 1995-03-14 | Process Technologies, Inc. | Method and apparatus for use in photochemically oxidizing gaseous organic compounds |
IT1259654B (it) * | 1992-05-14 | 1996-03-25 | Renzacci Spa | Procedimento ed apparecchiatura per l'eliminazione dei residui di solvente clorurato dalle acque di contatto risultanti dalla fase di asciugatura nelle apparecchiature per la pulitura a secco degli indumenti |
DE4221774A1 (de) * | 1992-07-02 | 1994-01-05 | Solvay Umweltchemie Gmbh | Verfahren zur Begasung und Entkeimung und Vorrichtung zur simultanen Durchführung |
DE4238324A1 (de) * | 1992-11-13 | 1994-05-19 | Abb Research Ltd | Verfahren und Einrichtung zur Entgiftung von schadstoffhaltigen Gasen |
GB9318830D0 (en) * | 1993-09-10 | 1993-10-27 | Colt Int Ltd | Method and apparatus for removing odours from a gas system |
US6306296B1 (en) | 1995-05-05 | 2001-10-23 | William B. Kerfoot | Groundwater and soil remediation with microporous diffusion apparatus |
US6312605B1 (en) | 1995-05-05 | 2001-11-06 | William B. Kerfoot | Gas-gas-water treatment for groundwater and soil remediation |
US5855775A (en) | 1995-05-05 | 1999-01-05 | Kerfoot; William B. | Microporous diffusion apparatus |
USRE43350E1 (en) | 1995-05-05 | 2012-05-08 | Think Village-Kerfoot, Llc | Microporous diffusion apparatus |
FR2735213B1 (fr) * | 1995-06-12 | 1997-07-11 | Kodak Pathe | Procede et dispositif de destruction par incineration de gaz de reaction |
US5601184A (en) * | 1995-09-29 | 1997-02-11 | Process Technologies, Inc. | Method and apparatus for use in photochemically oxidizing gaseous volatile or semi-volatile organic compounds |
DE19546061C5 (de) | 1995-12-09 | 2008-02-28 | Schröder, Werner | Verfahren zur Abluftreinigung |
US5861123A (en) * | 1996-04-26 | 1999-01-19 | Ceco Filters, Inc. | Ultraviolet light irradiated ebullating mass transfer system |
US6322756B1 (en) * | 1996-12-31 | 2001-11-27 | Advanced Technology And Materials, Inc. | Effluent gas stream treatment system having utility for oxidation treatment of semiconductor manufacturing effluent gases |
US5955037A (en) | 1996-12-31 | 1999-09-21 | Atmi Ecosys Corporation | Effluent gas stream treatment system having utility for oxidation treatment of semiconductor manufacturing effluent gases |
US6277347B1 (en) * | 1997-02-24 | 2001-08-21 | Applied Materials, Inc. | Use of ozone in process effluent abatement |
US5986160A (en) * | 1998-03-06 | 1999-11-16 | University Of Kentucky Research Foundation | Method of destroying hazardous organic compounds |
CA2276114C (en) * | 1998-06-22 | 2004-08-31 | Mitsubishi Heavy Industries, Ltd. | Method for processing polluted fluid containing pollutants |
US6436285B1 (en) * | 1999-12-22 | 2002-08-20 | William B. Kerfoot | Laminated microporous diffuser |
CA2338668C (en) * | 2000-02-29 | 2005-02-15 | Canon Kabushiki Kaisha | Polluted soil remediation apparatus, polluted soil remediation method, pollutant degrading apparatus and pollutant degrading method |
US8557110B2 (en) * | 2000-07-06 | 2013-10-15 | Thinkvillage-Kerfoot, Llc | Groundwater and subsurface remediation |
US6582611B1 (en) | 2000-07-06 | 2003-06-24 | William B. Kerfoot | Groundwater and subsurface remediation |
CN100551467C (zh) * | 2002-03-28 | 2009-10-21 | 兴研株式会社 | 有机化合物的分解装置 |
US7666316B2 (en) | 2004-07-20 | 2010-02-23 | Thinkvillage-Kerfoot, Llc | Permanganate-coated ozone for groundwater and soil treatment with in-situ oxidation |
US8302939B2 (en) * | 2003-02-12 | 2012-11-06 | Thinkvillage-Kerfoot, Llc | Soil and water remediation system and method |
US7442313B2 (en) * | 2003-08-27 | 2008-10-28 | Thinkvillage-Kerfoot, Llc | Environmental remediation method and system |
US6913251B2 (en) | 2003-02-12 | 2005-07-05 | William B. Kerfoot | Deep well sparging |
US7547388B2 (en) * | 2004-07-20 | 2009-06-16 | Think Village-Kerfoot, Llc | Superoxidant poiser for groundwater and soil treatment with in-situ oxidation-reduction and acidity-basicity adjustment |
US7569140B2 (en) * | 2005-11-10 | 2009-08-04 | Thinkvillage-Kerfoot, Llc | Directional spargewell system |
US8771507B2 (en) | 2003-12-24 | 2014-07-08 | Thinkvillage-Kerfoot, Llc | Directional microporous diffuser and directional sparging |
US7651611B2 (en) * | 2006-07-12 | 2010-01-26 | Thinkvillage-Kerfoot, Llc | Directional microporous diffuser and directional sparging |
US7401767B2 (en) * | 2003-12-24 | 2008-07-22 | Kerfoot William B | Directional microporous diffuser and directional sparging |
US7621696B2 (en) * | 2006-07-12 | 2009-11-24 | Thinkvillage-Kerfoot, Llc | Directional microporous diffuser and directional sparging |
US7736599B2 (en) | 2004-11-12 | 2010-06-15 | Applied Materials, Inc. | Reactor design to reduce particle deposition during process abatement |
US8419858B1 (en) | 2004-12-08 | 2013-04-16 | Haydock Intellectual Properties, LLC | Method and system for removing organic compouds in a closed loop system |
WO2006131148A1 (en) * | 2005-06-07 | 2006-12-14 | Roberto Giampieri | Apparatus for the treatment of objects to be decontaminated by exposure to a flow of ozone |
DE102005035951A1 (de) * | 2005-07-28 | 2007-02-01 | Nonnenmacher, Klaus, Dipl.-Ing. Prof. | Verfahren und Vorrichtung zur Reinigung und/oder Sterilisierung von Luft mittels Ozon |
DE102005049923B4 (de) * | 2005-10-17 | 2017-12-14 | KMU LOFT Cleanwater GmbH | Verfahren und Anordnung zum Reinigen von industriell verunreinigtem Abwasser/Prozesswasser mittels einer Destillationsanlage |
EP1954926A2 (de) | 2005-10-31 | 2008-08-13 | Applied Materials, Inc. | Prozessunterdrückungsreaktor |
US7820137B2 (en) * | 2006-08-04 | 2010-10-26 | Enerdel, Inc. | Lithium titanate and method of forming the same |
EP2164812A4 (de) * | 2007-06-22 | 2011-08-03 | Carrier Corp | Reinigung eines fluids unter verwendung von ozon mit einem adsorptionsmittel und/oder einem partikelfilter |
US9694401B2 (en) | 2013-03-04 | 2017-07-04 | Kerfoot Technologies, Inc. | Method and apparatus for treating perfluoroalkyl compounds |
CZ2014803A3 (cs) * | 2014-11-19 | 2016-02-03 | Vysoká škola chemicko- technologická v Praze | Zařízení pro čištění plynů obsahujících těkavé organické sloučeniny |
CN111760452A (zh) * | 2020-06-29 | 2020-10-13 | 盐城工学院 | 一种光催化臭氧协同催化降解挥发性有机气体性能测试的实验装置及其运行工艺 |
Family Cites Families (28)
Publication number | Priority date | Publication date | Assignee | Title |
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DE281772C (de) * | ||||
US1969655A (en) * | 1923-09-27 | 1934-08-07 | Gen Electric Vapor Lamp Co | Reaction chamber |
US2588716A (en) * | 1947-09-30 | 1952-03-11 | Allied Lab Inc | Process and apparatus for the irradiation of liquids |
US3336099A (en) * | 1963-01-23 | 1967-08-15 | Czulak Joseph | Apparatus for the sanitization of liquids with especial application to water storages and swimming pools |
US3732163A (en) * | 1971-11-03 | 1973-05-08 | Gen Electric | Process and apparatus for the ozone treatment of a liquid material |
DE2300273C3 (de) * | 1972-01-07 | 1982-05-06 | Toray Industries, Inc., Tokyo | Vorrichtung für Abwasserreinigung |
US3766060A (en) * | 1972-07-12 | 1973-10-16 | Vaponics | Rinse water purification |
DE2462995C2 (de) * | 1974-02-23 | 1984-10-11 | C.F. Spiess & Sohn GmbH & Co, 6719 Kleinkarlbach | Verfahren zum Reinigen von verschmutztem Grund- und Trinkwasser |
US3920547A (en) * | 1974-05-06 | 1975-11-18 | Houston Research Inc | Method of destroying cyanides |
US3951770A (en) * | 1974-07-05 | 1976-04-20 | Texaco Inc. | Hydrocarbon conversion |
US3980755A (en) * | 1975-02-19 | 1976-09-14 | Rohm And Haas Company | System for removing chloromethyl ether and bis-chloromethyl ether from air contaminated therewith |
US4045316A (en) * | 1975-05-27 | 1977-08-30 | Shintech Incorporated | Photochemical process for decontaminating gaseous or vaporous streams |
US4045538A (en) * | 1975-11-28 | 1977-08-30 | Ppg Industries, Inc. | Catalytic oxidation of vinyl chloride |
US4210503A (en) * | 1975-12-31 | 1980-07-01 | Exxon Research & Engineering Co. | Emission control method and system |
US4039623A (en) * | 1976-08-16 | 1977-08-02 | Ppg Industries, Inc. | Catalytic oxidation of C2-C4 halogenated hydrocarbons |
US4179616A (en) * | 1978-02-21 | 1979-12-18 | Thetford Corporation | Apparatus for sanitizing liquids with ultra-violet radiation and ozone |
US4144152A (en) * | 1978-03-27 | 1979-03-13 | Atlantic Research Corporation | Dehalogenation of halogenated compounds |
DE2854462C2 (de) * | 1978-12-16 | 1986-10-16 | Gesellschaft für Strahlen- und Umweltforschung mbH, 8000 München | Vorrichtung zur Bestimmung der Photomineralisierbarkeit adsorbierter chemischer Verbindungen |
JPS57183306A (en) * | 1981-04-30 | 1982-11-11 | Mitsubishi Electric Corp | Ozonizer |
JPS5939386A (ja) * | 1982-08-27 | 1984-03-03 | Fuji Electric Corp Res & Dev Ltd | 水道水中の有機ハロゲン化合物除去方法 |
JPS59150589A (ja) * | 1983-02-17 | 1984-08-28 | Raizaa Kogyo Kk | 用廃水の浄化方法とその装置 |
JPS60114393A (ja) * | 1983-11-22 | 1985-06-20 | Samuson Eng Kk | 廃水処理装置 |
US4780287A (en) * | 1984-07-03 | 1988-10-25 | Ultrox International | Decomposition of volatile organic halogenated compounds contained in gases |
JPS6128445A (ja) * | 1984-07-20 | 1986-02-08 | Oak Seisakusho:Kk | 紫外線照射装置 |
JPS6274484A (ja) * | 1985-09-30 | 1987-04-06 | Toshiba Corp | 液体浄化装置 |
JPS62163730A (ja) * | 1986-01-13 | 1987-07-20 | Ebara Infilco Co Ltd | 排ガス処理方法 |
JPS62191025A (ja) * | 1986-02-14 | 1987-08-21 | Nec Corp | 排ガスの処理方法 |
US4863687A (en) * | 1986-09-26 | 1989-09-05 | Solarchem Enterprises Inc. | Method for removing malodorous or toxic gases from an air stream |
-
1988
- 1988-09-30 US US07/250,842 patent/US4941957A/en not_active Expired - Fee Related
- 1988-10-18 EP EP88309759A patent/EP0360941B1/de not_active Expired - Lifetime
- 1988-10-18 AT AT88309759T patent/ATE86517T1/de not_active IP Right Cessation
- 1988-10-18 DE DE8888309759T patent/DE3879205D1/de not_active Expired - Lifetime
- 1988-10-19 CA CA000580669A patent/CA1329378C/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
CA1329378C (en) | 1994-05-10 |
EP0360941B1 (de) | 1993-03-10 |
EP0360941A2 (de) | 1990-04-04 |
US4941957A (en) | 1990-07-17 |
EP0360941A3 (en) | 1990-12-19 |
ATE86517T1 (de) | 1993-03-15 |
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