DE942608C - Acid gases, especially carbon dioxide, absorbent materials for breathing apparatus and absorption apparatus - Google Patents

Acid gases, especially carbon dioxide, absorbent materials for breathing apparatus and absorption apparatus

Info

Publication number
DE942608C
DE942608C DED10592D DED0010592D DE942608C DE 942608 C DE942608 C DE 942608C DE D10592 D DED10592 D DE D10592D DE D0010592 D DED0010592 D DE D0010592D DE 942608 C DE942608 C DE 942608C
Authority
DE
Germany
Prior art keywords
carbon dioxide
acid gases
especially carbon
absorbent materials
absorption
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
Application number
DED10592D
Other languages
German (de)
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 DED10592D priority Critical patent/DE942608C/en
Application granted granted Critical
Publication of DE942608C publication Critical patent/DE942608C/en
Expired legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B19/00—Cartridges with absorbing substances for respiratory apparatus
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B21/00—Devices for producing oxygen from chemical substances for respiratory apparatus

Landscapes

  • Health & Medical Sciences (AREA)
  • Pulmonology (AREA)
  • General Health & Medical Sciences (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Emergency Medicine (AREA)
  • Treating Waste Gases (AREA)

Description

Saure Gase, insbesondere Kohlendioxyd, absorbierende Massen für Aternschutzgeräte und Absorptionsapparate Die Erfindung betrifft ein Verfahren zum Herstellen von saure Gase, insbesondere Kohlendioxyd, absorbierenden Massen, die für die Beschickung der Reinigungspatronen von Atemschutzgeräten oder von Absorptionsapparaten Verwendung finden.Acid gases, especially carbon dioxide, absorbing masses for protective devices and absorption apparatus The invention relates to a method of making acid gases, especially carbon dioxide, absorbing masses necessary for charging the cleaning cartridges of respiratory protective devices or absorption apparatus Find.

Es ist bekannt, zum Herstellen von Kohlensäure absorbierenden Massen handelsüblichen Ätzkalk mit der für die Überführung von Kalziumoxyd in Kaziumhydroxyd erforderlichen Wassermenge zu löschen oder bereits in Hydroxyd übergeführten Kalk zunächst mit Wasser anzuteigen und der Masse Binde- oder Füllmittel, wie Ätzalkalien, Erden, Mineralsalze, Kolloide oder organischeVerbindungen oder Gemische, zuzusetzen. Diese breiige Masse wird dann z. B. durch Trocknen bei höheren Wärmegraden in festes, leicht zu körnendes Hydrat übergeführt, dessen Wassergehalt einschließlich des chemisch gebundenen Wassers nicht weniger als ao und nicht mehr als 40°/o (auf die gekörnte Substanz berechnet) beträgt.It is known for the production of carbonic acid absorbing masses commercial quick lime with that for the conversion of calcium oxide into potassium hydroxide to extinguish the required amount of water or lime already converted into hydroxide first make a paste with water and add binders or fillers, such as caustic alkalis, Earth, mineral salts, colloids or organic compounds or mixtures. This pasty mass is then z. B. by drying at higher degrees of warmth into solid, easily granulated hydrate, its water content including the chemical bound water not less than ao and not more than 40 ° / o (on the granular Substance calculated).

Die Erfindung betrifft nun die Verwendung von reinstem, also chemisch oder doch technisch reinem Kalziumoxyd oder Kalziumhydroxyd zum Herstellen von saure Gase, insbesondere Kohlendioxyd, absorbierenden Massen. Das Kalziumoxyd bzw. Kaziumhydroxyd soll insbesondere nicht mehr als etwa r °/o Silikatbildner und keine oder doch möglichst wenig anionische Bestandteile enthalten. Dadurch wird die Absorptionswirkung der absorbierenden Massen in überraschender Weise gesteigert, und es hat sich gezeigt, daß eine ursprünglich vorhandene Verunreinigung des zu verarbeitenden Kalkes von Nachteil ist. Als brauchbar haben sich besonders die aus wenig oder nicht verunreinigten Weißkalken oder aus Marmorkalk hergestellten Brennprodukte erwiesen.The invention now relates to the use of the purest, ie chemically or at least technically pure calcium oxide or calcium hydroxide for the production of acidic Gases, especially carbon dioxide, absorbing masses. The calcium oxide or potassium hydroxide In particular, it should not contain more than about r ° / o silicate formers and none or at least as much as possible contain few anionic components. This will increase the absorption effect the absorbing masses increased in a surprising way, and it has been shown that an originally existing impurity of the lime to be processed Disadvantage is. Those with little or no pollution have proven to be particularly useful White lime or combustion products made from marble lime have been proven.

Wird ein handelsüblicher gelöschter Kalk von einem Reinheitsgrad von etwa 98'% Trockensubstanz mit Wasser gelöscht, unter Zusatz von 211/o Alkalihydroxyd angeteigt und die . so erhaltene breiige Masse verformt und bei 5o bis 6o0 getrocknet, so erhält man eine stückige Absorptionsmasse, die zum Beschicken einer Kohlensäureabsorptionspatron.e von 7 cm Höhe und 141/4 cm Durchmesser dient. Beim Hindurchschicken eines 4% Kohlensäure enthaltenden und mit Feuchtigkeit gesättigten Luftstroms von 301/Minute mittels einer künstlichen Lunge erfolgt nach 17 Minuten ein Durchbruch von o,50/9 Kohlensäure. Wird dagegen reinster Kalk von einem Reinheitsgrad von annähernd ioo % genommen, in genau der gleichen Weise verarbeitet und zum Beschicken der Patronen verwendet, so beträgt deren Haltezeit 37 Minuten.Is a commercially available slaked lime with a purity of about 98% dry matter is extinguished with water, with the addition of 211 / o alkali hydroxide made into a paste and the. The resulting pulpy mass is shaped and dried at 5o to 6o0, in this way, a lumpy absorption material is obtained, which is used to load a carbon dioxide absorption cartridge 7 cm high and 141/4 cm in diameter. When passing a 4% carbonic acid containing and saturated with moisture air flow of 301 / minute by means of an artificial lung a breakthrough of 0.50 / 9 carbonic acid takes place after 17 minutes. If, on the other hand, the purest lime with a degree of purity of almost 100% is used, processed in exactly the same way and used to load the cartridges, their holding time is 37 minutes.

Claims (1)

PATENTANSPRUCH: Verwendung von reinstem Kalziumoxyd bzw. Kalziumhydroxyd, das unter 10/9 Silikatbildner und möglichst wenig anionische Bestandteile enthält, zum Herstellen von saure Gase, insbesondere Kohlendioxyd, absorbierenden Massen für Atemschutzgeräte und Absorptionsapparate. Angezogene Druckschriften: Deutsche Patentschrift Nr. q_47 425; schweizerische Patentschrift Nr. 198 0o6; niederländische Patentschrift Nr. 51 276; Referat des belgischen Patents 433 707 im Chem. Zentralblatt 1940, 1, S.2995. C,PATENT CLAIM: Use of the purest calcium oxide or calcium hydroxide, which contains less than 1 0/9 silicate formers and as few anionic constituents as possible, for the production of acid gases, especially carbon dioxide, absorbent materials for breathing apparatus and absorption apparatus. Cited publications: German patent specification no. Q_47 425; Swiss Patent No. 198 0o6; Dutch Patent No. 51 276; Report of the Belgian patent 433 707 in the Chem. Zentralblatt 1940, 1, p.2995. C,
DED10592D 1941-12-05 1941-12-05 Acid gases, especially carbon dioxide, absorbent materials for breathing apparatus and absorption apparatus Expired DE942608C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DED10592D DE942608C (en) 1941-12-05 1941-12-05 Acid gases, especially carbon dioxide, absorbent materials for breathing apparatus and absorption apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DED10592D DE942608C (en) 1941-12-05 1941-12-05 Acid gases, especially carbon dioxide, absorbent materials for breathing apparatus and absorption apparatus

Publications (1)

Publication Number Publication Date
DE942608C true DE942608C (en) 1956-05-03

Family

ID=7033368

Family Applications (1)

Application Number Title Priority Date Filing Date
DED10592D Expired DE942608C (en) 1941-12-05 1941-12-05 Acid gases, especially carbon dioxide, absorbent materials for breathing apparatus and absorption apparatus

Country Status (1)

Country Link
DE (1) DE942608C (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE433707A (en) *
NL51276C (en) *
DE447425C (en) * 1926-03-07 1927-07-25 C A F Kahlbaum Chem Fab G M B Process for the production of carbonic acid-absorbing masses for filling breathing apparatus or absorption apparatus of all kinds
CH198006A (en) * 1936-02-29 1938-05-31 Draeger Otto Dr Heinrich Carbonic acid absorbents, particularly for gas protection devices, and process for their manufacture.

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE433707A (en) *
NL51276C (en) *
DE447425C (en) * 1926-03-07 1927-07-25 C A F Kahlbaum Chem Fab G M B Process for the production of carbonic acid-absorbing masses for filling breathing apparatus or absorption apparatus of all kinds
CH198006A (en) * 1936-02-29 1938-05-31 Draeger Otto Dr Heinrich Carbonic acid absorbents, particularly for gas protection devices, and process for their manufacture.

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