DE569465C - Process for the safe killing of pests and germs of all kinds - Google Patents

Process for the safe killing of pests and germs of all kinds

Info

Publication number
DE569465C
DE569465C DE1930569465D DE569465DD DE569465C DE 569465 C DE569465 C DE 569465C DE 1930569465 D DE1930569465 D DE 1930569465D DE 569465D D DE569465D D DE 569465DD DE 569465 C DE569465 C DE 569465C
Authority
DE
Germany
Prior art keywords
mixture
pests
kinds
germs
carbon dioxide
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
DE1930569465D
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.)
Evonik Operations GmbH
Original Assignee
TH Goldschmidt AG
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 TH Goldschmidt AG filed Critical TH Goldschmidt AG
Application granted granted Critical
Publication of DE569465C publication Critical patent/DE569465C/en
Expired legal-status Critical Current

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Classifications

    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01NPRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N25/00Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests
    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01NPRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N43/00Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
    • A01N43/02Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one or more oxygen or sulfur atoms as the only ring hetero atoms
    • A01N43/04Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one or more oxygen or sulfur atoms as the only ring hetero atoms with one hetero atom
    • A01N43/20Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one or more oxygen or sulfur atoms as the only ring hetero atoms with one hetero atom three- or four-membered rings

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Pest Control & Pesticides (AREA)
  • Plant Pathology (AREA)
  • Engineering & Computer Science (AREA)
  • Dentistry (AREA)
  • Agronomy & Crop Science (AREA)
  • Zoology (AREA)
  • Environmental Sciences (AREA)
  • Toxicology (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)
  • Catching Or Destruction (AREA)

Description

Verfahren zur gefahrlosen Abtötung von Schädlingen und Keimen aller Art Durch Patent 5i4 775 ist unter Schutz gestellt ein Schädlingsbekämpfungsmittel, bestehend aus einem Gemisch aus Alky lenoxy d und Kohlensäure, «-elches nach Maßgabe der Beschreibung mit einem großen L?berschuß von Kohlensäure verwendet wird, um damit der durch die leichte Brennbarkeit der Alkylenoxyde bedingten Gefahr begegnen zu können.Process for the safe killing of pests and germs of all kinds. Patent 5i4 775 protects a pesticide consisting of a mixture of alkylene oxide and carbonic acid, which is used with a large excess of carbonic acid in accordance with the description, in order to be able to counter the danger caused by the easy flammability of the alkylene oxides.

Diese Arbeitsweise erfordert zur Erhaltung der für die Schädlingsvernichtung nötigen Konzentration an Alky lenoxy d, z. B. Äthylenoxy d, einen erheblichen Aufwand an Kohlensäure, die nicht nur an sich kostspielig ist, sondern infolge der erforderlichen Mengen bei der Aufbewahrung oder beim Transport viel Raum beansprucht und z. B. bei Aufbewahrung des Gemisches in druckfesten Flaschen einen großen Vorrat an solchen Flaschen voraussetzt.This way of working requires the maintenance of the pest extermination necessary concentration of Alky lenoxy d, z. B. Äthylenoxy d, a considerable effort of carbonic acid, which is not only expensive in itself, but as a result of the necessary Quantities in storage or transport take up a lot of space and z. B. if the mixture is stored in pressure-resistant bottles, have a large supply of such Assumes bottles.

Es wurde nun gefunden, daß man die durch jenes Vorgehen bedingten Nachteile. wie Verminderung der Konzentration des Schädlingsbekämpfungsmittels an wirksamem Stoff bzw. geringe Wirtschaftlichkeit infolge hohen Aufwandes an Kohlensäure und schwieriges Umfüllen, vermeiden kann, wenn man für eine sehr schnelle Vermischung des dem Aufbewahrungsbehälter entströmenden Gemisches mit Luft Sorge trägt und damit die Konzentration des Gemisches an brennbaren Stoffen unter die Brennbarkeits- bzw. Explosionsgrenze drückt.It has now been found that the conditions caused by that procedure were found Disadvantage. such as reducing the concentration of the pesticide effective substance or low economy due to high consumption of carbonic acid and difficult decanting, can be avoided if one is looking for a very quick mix of the mixture with air flowing out of the storage container and thus the concentration of the mixture of combustible substances below the combustibility or Explosion limit presses.

In Ausführung dieser Vorschrift kann man etwa derart verfahren, daß man das Gemisch durch einen Ventilator, eine Spritzpistole oder durch ein Treibmittel aus einer druckfesten Flasche in den zu begasenden Raum hineintreibt. Das bisher z. B. für ÄthYlenoxvdund Kohlensäure vorgesehene Mischungsverhältnis von nicht wesentlich unterhalb i : io kann dabei wesentlich zugunsten von Äthylenoxyd verschoben werden. Es genügt, die Menge der Kohlensäure so zu wählen, daß die Treibkraft ausreicht, eine möglichst schnelle Mischung des zu vergasenden Stoffes mit der Luft zu erzielen. Hierbei können Düsen bekannter Bauart, die das Ansaugen der Luft begünstigen, die schnelle Vermischung wesentlich fördern.In carrying out this rule one can proceed in such a way that the mixture by means of a fan, a spray gun or a propellant from a pressure-tight bottle into the room to be fumigated. That so far z. B. for ÄthYlenoxvdund carbonic acid provided mixing ratio of not essential below i: io can be shifted significantly in favor of ethylene oxide. It is sufficient to choose the amount of carbon dioxide so that the driving force is sufficient to achieve the fastest possible mixture of the substance to be gasified with the air. Here, nozzles of known design, which favor the suction of air, can be used promote rapid mixing significantly.

Eingehende Versuche haben gezeigt, daß durch die öben beschriebene Maßnahme nicht nur eine schnelle Verteilung erreicht wird, sondern das Gemisch auch in seiner hoch toxischen Form erhalten und durch das schnelle Heranbringen Schädlingen jede Möglichkeit genommen wird, etwa Abwehr- oder Schutzstellungen einzunehmen. Damit wird also nicht nur die Handhabung jener Gemische erleichtert, sondern insbesondere auch eine unbedingt sichere Wirkunggewährleistet. indem das Gemisch eine vervollkommnete Ausnutzung erfährt.In-depth tests have shown that the above described Measure not only a rapid distribution is achieved, but also the mixture preserved in its highly toxic form and pests by the rapid introduction every opportunity is taken to take defensive or protective positions, for example. So that will not only facilitates the handling of those mixtures, but in particular also guarantees an absolutely safe effect. by that Mixture experiences a perfect utilization.

Claims (2)

PATENTAIZSPRÜCHE: r. Verfahren zur gefahrlosen Abtötung von Schädlingen und Keimen aller Art mittels Gemischen aus Alkylenoxvden und Kohlensäure gemäß Patent 514 775, da- durch gekennzeichnet, daß man das aus dem Aufbewahrungsbehälter ausströmende Gemisch durch Ventilatoren, Spritzpistolen, Treibmittel o. dgl. mit so viel Luft vermischt, daß die Konzentration des Gemisches an brennbaren Stoffen unter die Brennbarkeits- bzw. Explosionsgrenze gedrückt wird. PATENT CLAIMS: r. A method for the safe killing of pests and pathogens of all kinds by means of mixtures of Alkylenoxvden and carbon dioxide according to patent 514775, DA by in that the effluent from the storage tank mix by fans, spray guns, propellant o. The like. Mixed with so much air, that the concentration of the mixture of flammable substances is pushed below the flammability or explosion limit. 2. Verfahren nach Anspruch z, dadurch gekennzeichnet, daß man ein Gemisch mit so viel Kohlensäure verwendet, daß die Treibkraft der Kohlensäure für die schnelle Vermischung mit Luft ausreicht.2. Procedure according to Claim z, characterized in that a mixture with as much carbonic acid that uses the driving force of carbon dioxide for rapid mixing with air sufficient.
DE1930569465D 1930-04-06 1930-04-06 Process for the safe killing of pests and germs of all kinds Expired DE569465C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE569465T 1930-04-06

Publications (1)

Publication Number Publication Date
DE569465C true DE569465C (en) 1933-02-03

Family

ID=6568357

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1930569465D Expired DE569465C (en) 1930-04-06 1930-04-06 Process for the safe killing of pests and germs of all kinds

Country Status (1)

Country Link
DE (1) DE569465C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE763074C (en) * 1938-11-16 1953-03-30 Braun Fa B Method and device for sterilizing catgut

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE763074C (en) * 1938-11-16 1953-03-30 Braun Fa B Method and device for sterilizing catgut

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