DE3805407A1 - Chemisorption composition for breathing apparatuses - Google Patents

Chemisorption composition for breathing apparatuses

Info

Publication number
DE3805407A1
DE3805407A1 DE19883805407 DE3805407A DE3805407A1 DE 3805407 A1 DE3805407 A1 DE 3805407A1 DE 19883805407 DE19883805407 DE 19883805407 DE 3805407 A DE3805407 A DE 3805407A DE 3805407 A1 DE3805407 A1 DE 3805407A1
Authority
DE
Germany
Prior art keywords
zinc
copper
vanadate
sorption
alkali metal
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Withdrawn
Application number
DE19883805407
Other languages
German (de)
Inventor
Carl Ernst Van Der Dr Smissen
Brigitte Dipl Che Christophori
Gerhold Dipl Chem Dr Muehmel
Sigrid Mueller
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Draegerwerk AG and Co KGaA
Original Assignee
Draegerwerk AG and Co KGaA
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Draegerwerk AG and Co KGaA filed Critical Draegerwerk AG and Co KGaA
Priority to DE19883805407 priority Critical patent/DE3805407A1/en
Publication of DE3805407A1 publication Critical patent/DE3805407A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B23/00—Filters for breathing-protection purposes
    • A62B23/02—Filters for breathing-protection purposes for respirators
    • 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
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
    • 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
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
    • B01J20/0203—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising compounds of metals not provided for in B01J20/04
    • B01J20/0214—Compounds of V, Nb, Ta
    • 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
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
    • B01J20/0203—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising compounds of metals not provided for in B01J20/04
    • B01J20/0233—Compounds of Cu, Ag, Au
    • B01J20/0237—Compounds of Cu
    • 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
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
    • B01J20/0203—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising compounds of metals not provided for in B01J20/04
    • B01J20/024—Compounds of Zn, Cd, Hg
    • B01J20/0244—Compounds of Zn
    • 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
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
    • B01J20/06—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising oxides or hydroxides of metals not provided for in group B01J20/04
    • 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
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
    • B01J20/20—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising free carbon; comprising carbon obtained by carbonising processes
    • 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
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/30—Processes for preparing, regenerating, or reactivating
    • B01J20/32—Impregnating or coating ; Solid sorbent compositions obtained from processes involving impregnating or coating
    • B01J20/3202—Impregnating or coating ; Solid sorbent compositions obtained from processes involving impregnating or coating characterised by the carrier, support or substrate used for impregnation or coating
    • B01J20/3204—Inorganic carriers, supports or substrates
    • 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
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/30—Processes for preparing, regenerating, or reactivating
    • B01J20/32—Impregnating or coating ; Solid sorbent compositions obtained from processes involving impregnating or coating
    • B01J20/3231—Impregnating or coating ; Solid sorbent compositions obtained from processes involving impregnating or coating characterised by the coating or impregnating layer
    • B01J20/3234—Inorganic material layers
    • B01J20/3236—Inorganic material layers containing metal, other than zeolites, e.g. oxides, hydroxides, sulphides or salts
    • 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
    • B01J2220/00—Aspects relating to sorbent materials
    • B01J2220/40—Aspects relating to the composition of sorbent or filter aid materials
    • B01J2220/42—Materials comprising a mixture of inorganic materials

Abstract

The known sorption compositions for breathing apparatuses (respirators) for binding acidic gases, which compositions comprise a support having an impregnation of copper oxide and/or zinc oxide and alkali metal chromate exhibit poor stability to aging. The aim of the invention is to replace the chromate-containing sorption compositions by those of improved resistance to aging. This is achieved according to the invention by copper oxide and/or zinc oxide being applied, together with an alkali metal vanadate, to a support, e.g. activated charcoal. Particularly good sorption efficiencies are achieved if copper and zinc are applied as carbonates, together with alkali metal vanadate, from ammoniacal solution to the activated charcoal and the carbonates are then decomposed by heating.

Description

Es sind Sorptionsmassen zur chemischen Bindung von sauren Gasen bekannt, die in Filtern von Atemschutzgeräten verwendet werden. Diese Massen bestehen aus einem Träger und einer Imprägnierung aus Kupferoxid und Alkalichromat. Es sind auch Sorptionsmassen bekannt, die zusätzlich Zinkoxid enthalten. Chromhaltige Imprägnierungen weisen jedoch eine schlechte Alterungsbeständigkeit auf. Dies bedingt, daß Filter, die längere Zeit gelagert werden sollen, erheblich überdimensioniert sein müssen, um auch nach der Lagerung noch eine ausreichende Schutzwirkung gegen saure Gase aufzuweisen. Hierdurch werden die Filter größer, schwerer und unhandlicher, was vor allem bei Fluchtgeräten sehr unerwünscht ist. Die Erfindung hat zum Ziel, die chromhaltigen Imprägnierungen durch solche mit besserer Alterungsbeständigkeit zu ersetzen. Dies wird erfindungsgemäß dadurch erreicht, daß anstelle von Chromaten Vanadate in der Imprägnierung verwendet werden. Werden Kupfercarbonat und Alkalivanadat zusammen auf einem Träger, z.B. Aktivkohle, aufgebracht und vorsichtig erhitzt, wird das Kupfercarbonat ganz oder teilweise zersetzt und eine sehr wirkungsvolle lmprägnierung zur Bindung von sauren Gasen gebildet.They are sorption materials for the chemical binding of acid gases known, which are used in filters of breathing apparatus. These materials consist of a carrier and an impregnation made of copper oxide and alkali chromate. They are also sorption masses known that additionally contain zinc oxide. Chromium-containing However, impregnations have poor resistance to aging on. This means that filters that are stored for a long time are supposed to be significantly oversized to sufficient protection against acid during storage To have gases. This will make the filters bigger, heavier and unwieldy, which is particularly undesirable for escape devices is. The aim of the invention is the chromium-containing impregnations to be replaced by those with better aging resistance. This is achieved in that instead of Chromate vanadate can be used in the impregnation. Will Copper carbonate and alkali vanadate together on one support, e.g. Activated carbon, applied and carefully heated, that is Copper carbonate completely or partially decomposed and a very effective impregnation for binding acid gases.

Eine ähnliche Wirkung wird erzielt, wenn statt Kupfer Zink verwendet wird. Besonders vorteilhaft ist es, wenn Kupfer und Zink nebeneinander verwendet werden. Die Kupferoxid-Alkalivanadat- bzw. Zinkoxid-Alkalivanadat-Imprägnierungen zeigen auch nach längerer Lagerung keinen nennenswerten Abfall der Chemiesorptions­ fähigkeit. Zur Erweiterung des Anwendungsbereichs der Sorptions­ masse auf die Bindung von Ammoniak kann noch Zinkchlorid hinzu­ gefügt werden. A similar effect is achieved if zinc instead of copper is used. It is particularly advantageous if copper and Zinc can be used side by side. The copper oxide alkali vanadate or zinc oxide-alkali vanadate impregnations also show prolonged storage no significant drop in chemical sorption ability. To expand the scope of the sorption Zinc chloride can also be added to the binding of ammonia be added.  

Die Erfindung sei an zwei Beispielen erläutert:The invention is illustrated by two examples:

  • 1. 1 kg Aktivkohle wird mit einer ammoniakalischen Lösung von 80 g basischem Kupfercarbonat und 40 g Natriumvanadat getränkt. Die rieselfähige Aktivkohle wird dann vorsichtig bis auf 140°C erwärmt, bis kein Geruch nach Ammoniak mehr festzustellen ist. Nach dem Abkühlen kann die Impräg­ nierte Aktivkohle in Atemschutzfilter verfüllt werden. Ein so gefülltes Filter üblicher Größe weist eine gute Aufnahmekapazität für Chlor auf.1. 1 kg of activated carbon is mixed with an ammoniacal solution of 80 g basic copper carbonate and 40 g sodium vanadate soaked. The free-flowing activated carbon is then careful heated up to 140 ° C until no smell of ammonia is more noticeable. After cooling, the impregnation can nated activated carbon in a respiratory protection filter. A conventional size filter filled in this way has a good one Absorption capacity for chlorine.
  • 2. 1 kg Aktivkohle wird mit einer ammoniakalischen Lösung von 40 g basischem Kupfercarbonat, 40 g Zinkcarbonat und 40 g Natriumvanadat getränkt. Die weitere Verarbeitung geschieht, wie im Beispiel 1 beschrieben.2. 1 kg of activated carbon is mixed with an ammoniacal solution of 40 g basic copper carbonate, 40 g zinc carbonate and 40 g of sodium vanadate soaked. The further processing happens as described in Example 1.
  • Ein Atemschutzfilter üblicher Größe, gefüllt mit Aktivkohle, die in der vorstehend beschriebenen Weise imprägniert wurde, erfüllt alle Leistungsanforderungen der DIN 3181 für Filter des Typs B.A standard size respiratory protection filter filled with activated carbon, which has been impregnated in the manner described above, meets all performance requirements of DIN 3181 for type B filters.

Imprägnierungen nach Beispiel 1 wie nach Beispiel 2 weisen auch nach längerer Lagerung noch ihre anfängliche Sorptionsleistung auf.Impregnations according to Example 1 as in Example 2 also have their initial sorption performance after long storage on.

Claims (5)

1. Chemiesorptionsmasse für Atemschutzgeräte, bestehend aus einem Träger und einer Imprägnierung, zur Bindung von sauren Gasen, dadurch gekennzeichnet, daß die Imprägnierung 0,5-10 Gew.% Vanadium neben 0,5-10 Gew.% Kupfer und/oder 0,5-10 Gew.% Zink enthält.1. Chemical sorption mass for breathing apparatus, consisting of a carrier and an impregnation, for binding acid Gases, characterized in that the impregnation 0.5-10% by weight of vanadium in addition to 0.5-10% by weight of copper and / or Contains 0.5-10% by weight zinc. 2. Chemiesorptionsmasse nach Anspruch 1, dadurch gekennzeichnet, daß das Vanadium als Vanadat vorliegt.2. chemical sorption composition according to claim 1, characterized in that the vanadium is present as vanadate. 3. Chemiesorptionsmasse nach Anspruch 1, dadurch gekennzeichnet, daß das Kupfer als Oxid, Carbonat oder Vanadat vorliegt.3. chemical sorption composition according to claim 1, characterized in that the copper is present as an oxide, carbonate or vanadate. 4. Chemiesorptionsmasse nach Anspruch 1, dadurch gekennzeichnet, daß das Zink als Oxid, Carbonat oder Vanadat vorliegt.4. chemical sorption composition according to claim 1, characterized in that the zinc is present as an oxide, carbonate or vanadate. 5. Chemiesorptionsmasse nach Anspruch 1-4, dadurch gekennzeichnet, daß zusätzlich noch Zink als Zinkchlorid vorhanden ist.5. chemical sorbent according to claims 1-4, characterized in that zinc is also present as zinc chloride.
DE19883805407 1988-02-22 1988-02-22 Chemisorption composition for breathing apparatuses Withdrawn DE3805407A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19883805407 DE3805407A1 (en) 1988-02-22 1988-02-22 Chemisorption composition for breathing apparatuses

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19883805407 DE3805407A1 (en) 1988-02-22 1988-02-22 Chemisorption composition for breathing apparatuses

Publications (1)

Publication Number Publication Date
DE3805407A1 true DE3805407A1 (en) 1989-08-31

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Family Applications (1)

Application Number Title Priority Date Filing Date
DE19883805407 Withdrawn DE3805407A1 (en) 1988-02-22 1988-02-22 Chemisorption composition for breathing apparatuses

Country Status (1)

Country Link
DE (1) DE3805407A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0405404A1 (en) * 1989-06-23 1991-01-02 Calgon Carbon Corporation Chromium-free impregnated activated carbon for adsorption of toxic gases and/or vapors
DE4011221A1 (en) * 1990-04-06 1991-10-10 Draegerwerk Ag Impregnation for respiratory protection filter with activated carbon
WO1994000383A1 (en) * 1992-06-26 1994-01-06 Minnesota Mining And Manufacturing Company Dual impregnated activated carbon
EP2730293A1 (en) * 2012-11-13 2014-05-14 Heyer Medical AG Gas filter with copper for removing bacteria and viruses from a gas volume

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1417648B (en) *
DE852992C (en) * 1949-04-08 1952-10-20 Distillers Co Yeast Ltd Process for the production of unsaturated aldehydes
DE1468762A1 (en) * 1963-05-17 1968-12-19 Du Pont Process for the production of alkanedicarboxylic acids by oxidation of cycloalkanols and / or cycloalkanones with nitric acid in the liquid phase
DE1930702A1 (en) * 1969-06-18 1971-01-07 Metallgesellschaft Ag Process for the production of methanol
DE2702014A1 (en) * 1976-01-19 1977-07-21 Sumitomo Chemical Co PROCESS AND CATALYST FOR THE PRODUCTION OF ACID AMIDES
DE2918405A1 (en) * 1979-05-08 1980-11-20 Metallgesellschaft Ag METHOD FOR PRODUCING CARBON MONOXIDE AND HYDROGEN FROM METHANOL

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1417648B (en) *
DE852992C (en) * 1949-04-08 1952-10-20 Distillers Co Yeast Ltd Process for the production of unsaturated aldehydes
DE1468762A1 (en) * 1963-05-17 1968-12-19 Du Pont Process for the production of alkanedicarboxylic acids by oxidation of cycloalkanols and / or cycloalkanones with nitric acid in the liquid phase
DE1930702A1 (en) * 1969-06-18 1971-01-07 Metallgesellschaft Ag Process for the production of methanol
DE1930702B2 (en) * 1969-06-18 1974-04-18 Metallgesellschaft Ag, 6000 Frankfurt
DE2702014A1 (en) * 1976-01-19 1977-07-21 Sumitomo Chemical Co PROCESS AND CATALYST FOR THE PRODUCTION OF ACID AMIDES
DE2918405A1 (en) * 1979-05-08 1980-11-20 Metallgesellschaft Ag METHOD FOR PRODUCING CARBON MONOXIDE AND HYDROGEN FROM METHANOL

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0405404A1 (en) * 1989-06-23 1991-01-02 Calgon Carbon Corporation Chromium-free impregnated activated carbon for adsorption of toxic gases and/or vapors
DE4011221A1 (en) * 1990-04-06 1991-10-10 Draegerwerk Ag Impregnation for respiratory protection filter with activated carbon
US5113856A (en) * 1990-04-06 1992-05-19 Dragerwerk Aktiengesellschaft Impregnation for respirator filters filled with active carbon
WO1994000383A1 (en) * 1992-06-26 1994-01-06 Minnesota Mining And Manufacturing Company Dual impregnated activated carbon
US5344626A (en) * 1992-06-26 1994-09-06 Minnesota Mining And Manufacturing Company Dual impregnated activated carbon
US5496785A (en) * 1992-06-26 1996-03-05 Minnesota Mining And Manufacturing Company Dual impregnated activated carbon
EP2730293A1 (en) * 2012-11-13 2014-05-14 Heyer Medical AG Gas filter with copper for removing bacteria and viruses from a gas volume

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