DE551374C - Process for the production of pest repellants - Google Patents

Process for the production of pest repellants

Info

Publication number
DE551374C
DE551374C DESCH92691D DESC092691D DE551374C DE 551374 C DE551374 C DE 551374C DE SCH92691 D DESCH92691 D DE SCH92691D DE SC092691 D DESC092691 D DE SC092691D DE 551374 C DE551374 C DE 551374C
Authority
DE
Germany
Prior art keywords
production
pest repellants
silica
properties
repellants
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
DESCH92691D
Other languages
German (de)
Inventor
Dr Karl Goernitz
Dr Herbert Schotte
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.)
Schering Kahlbaum AG
Original Assignee
Schering Kahlbaum 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 Schering Kahlbaum AG filed Critical Schering Kahlbaum AG
Priority to DESCH92691D priority Critical patent/DE551374C/en
Application granted granted Critical
Publication of DE551374C publication Critical patent/DE551374C/en
Expired legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01N—PRESERVATION 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
    • A01N25/00—Biocides, 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
    • A01N25/12—Powders or granules
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01N—PRESERVATION 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
    • A01N25/00—Biocides, 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
    • A01N25/26—Biocides, 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 in coated particulate form

Description

Verfahren zur Herstellung von Schädlingsbekämpfungsmitteln Patent 543 3o3 betrifft ein Verfahren zur Verbesserung der Eigenschaften pulverförmiger, zur Darstellung von Schädlingsbekämpfungsmitteln geeigneter Stoffe, das darin besteht, daß man in hinreichend zerkleinerten vegetabilischen Produkten durch chemische Behandlung Niederschläge erzeugt und das erforderlichenfalls getrocknete Material vermahlt.Process for the manufacture of pesticides patent 543 3o3 relates to a process for improving the properties of powdery, for the representation of substances suitable for pesticides, which consists of that one in sufficiently chopped up vegetable products by chemical treatment Precipitates are generated and the material, dried if necessary, is ground.

Es wurde nun gefunden, daß man den Pulvern besonders gute Eigenschaften verleihen kann, wenn man in bzw. auf ihnen Kieselsäure niederschlägt.It has now been found that the powders have particularly good properties can confer if one precipitates silica in or on them.

Durch die Imprägnierung mit Kieselsäure erfolgt eine besonders gute Härtung der vegetabilischen Pulver; diese lassen sich daher äußerst fein ausmahlen und zeigen dann eine ganz hervorragende Verstäubbarkeit und Haftfähigkeit. Diese Pulver haben außerdem ein ausgezeichnetes Adsorptionsvermögen für Flüssigkeiten und eignen sich daher vorzüglich als Träger für flüssige Insekticide. Ein nach Beispiel 2 (unten) hergestelltes Produkt nimmt z. B. ohne weiteres 50'o Nikotin auf, ohne dadurch auch nur im geringsten feucht oder in seiner Verstäubungs- und Haftfähigkeit beeinflußt zu werden. Beispiel i 5o g Tabakstaub werden mit -Wasser angefeuchtet, dann mit i oo kg Wasserglaslösung verknetet und schließlich mit 23 kg konzentrierter Salzsäure versetzt. Die krümelige Masse wird anschließend getrocknet und vermahlen. Beispiel 2 Holzmehl wird mit so viel 'Wasserglaslösung getränkt, daß es nach dem Ausfällen der Kieselsäure i o % Si O, enthält. Man fällt die Kieselsäure durch Kohlensäure aus, wäscht das Produkt aus und erhält nach dem Trocknen und Vermahlen ein staubfeines, an glatten Flächen gut haftendes Pulver mit großem Adsorptionsvermögen für Insekticide.The impregnation with silica produces a particularly good result Hardening of vegetable powder; these can therefore be ground extremely finely and then show very excellent dustability and adhesiveness. These Powders also have excellent liquid adsorption properties and are therefore particularly suitable as carriers for liquid insecticides. One by example 2 (below) manufactured product takes e.g. B. easily 50'o nicotine without as a result, it is only slightly damp or in terms of its ability to dust and adhere to be influenced. Example i 50 g tobacco dust are moistened with water, then kneaded with 100 kg of water glass solution and finally with 23 kg more concentrated Hydrochloric acid added. The crumbly mass is then dried and ground. Example 2 Wood flour is soaked with so much 'water glass solution that after the Precipitation of the silica i o% Si O contains. The silica is precipitated by carbonic acid washes out the product and, after drying and grinding, receives a dust-fine, Powder that adheres well to smooth surfaces and has a high adsorption capacity for insecticides.

Claims (1)

PATENTANSPRUCH: Verfahren zum Verbessern der Eigenschaften pulverförmiger, zur Herstellung von Schädlingsbekämpfungsmitteln geeigneter Stoffe gemäß Patent 54.3 3o3, dadurch gekennzeichnet, daß man auf ihnen Kieselsäure niederschlägt.PATENT CLAIM: Process for improving the properties of powdery, for the production of pesticides suitable substances according to patent 54.3 3o3, characterized in that silica is deposited on them.
DESCH92691D 1931-01-04 1931-01-04 Process for the production of pest repellants Expired DE551374C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DESCH92691D DE551374C (en) 1931-01-04 1931-01-04 Process for the production of pest repellants

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DESCH92691D DE551374C (en) 1931-01-04 1931-01-04 Process for the production of pest repellants

Publications (1)

Publication Number Publication Date
DE551374C true DE551374C (en) 1932-05-30

Family

ID=7444966

Family Applications (1)

Application Number Title Priority Date Filing Date
DESCH92691D Expired DE551374C (en) 1931-01-04 1931-01-04 Process for the production of pest repellants

Country Status (1)

Country Link
DE (1) DE551374C (en)

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