DE543308C - Process for the production of pest repellants - Google Patents

Process for the production of pest repellants

Info

Publication number
DE543308C
DE543308C DE1930543308D DE543308DD DE543308C DE 543308 C DE543308 C DE 543308C DE 1930543308 D DE1930543308 D DE 1930543308D DE 543308D D DE543308D D DE 543308DD DE 543308 C DE543308 C DE 543308C
Authority
DE
Germany
Prior art keywords
production
pest repellants
pest
repellants
products
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
DE1930543308D
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
Application granted granted Critical
Publication of DE543308C publication Critical patent/DE543308C/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

Description

Bekanntlich ist es sehr schwer, vegetabilen Produkten, z. B. Holzarten, Wurzeln, Blüten, Blättern usw., eine so feinkörnige Beschaffenheit zu verleihen, daß sie sich bequem verstäuben lassen. Allermeist haben diese zerstoßenen Produkte eine sehr geringe Haftfähigkeit, Regen- und Windbeständigkeit, dazu entmischen sie sich leicht, wenn sie mit anorganischen Stoffen gestreckt werden.It is well known that it is very difficult to use vegetable products, e.g. B. types of wood, roots, flowers, Leaves, etc., so fine-grained that they easily dust one another permit. Most of these crushed products have a very poor adhesive strength, Rain and wind resistance, and they separate easily when they are stretched with inorganic substances.

Es wurde nun gefunden, daß man diese Nachteile vermeiden kann, wenn man die Pflanzenprodukte in hinreichend zerkleinertem Zustande mit unlöslichen Stoffen härtet bzw. beschwert, und zwar in der Weise, daß man unlösliche Niederschläge auf bzw. in ihnen erzeugt. Als solche kommen Calcium- oder Bariumsulfat, Calciumcarbonat, Calciumoxalat u. a. m. in Frage. Die auf diese Weise behandelten Produkte lassen sich in geeigneten Mühlen ausgezeichnet vermählen, erhalten ein höheres spezifisches Gewicht und besitzen eine sehr gute Haft- und Verstäubungsfähigkeit.It has now been found that these disadvantages can be avoided if the Plant products harden in a sufficiently crushed state with insoluble substances or weighted, in such a way that insoluble precipitates on or generated in them. Calcium or barium sulfate, calcium carbonate, Calcium oxalate et al. m. in question. The products treated in this way can be Grind excellently in suitable mills, obtain a higher specific grind Weight and have a very good adhesion and dusting ability.

Die zu imprägnierenden pflanzlichen Stoffe können als solche insekticide und fungicide Wirkung aufweisen oder inerten Charakter haben. Im letzteren Falle kann man sie mit dem gewünschten Insekticid oder Fungicid tränken oder mischen.The vegetable substances to be impregnated can as such be insecticides and fungicides Have an effect or have an inert character. In the latter case you can use them Soak or mix the desired insecticide or fungicide.

BeispieliExample i

Tabakstaub wird mit einer Natriumsulfatlösung durchtränkt und dann mit Kalkmilch versetzt. Das ausfallende Calciumsulfat härtet das Pulver, während die entstehende Natronlauge gleichzeitig das Nicotin in Freiheit setzt. Nach dem Trocknen erhält man ein leicht zu vermählendes, gut verstäubbares Pulver.Tobacco dust is soaked with a sodium sulfate solution and then with milk of lime offset. The precipitating calcium sulfate hardens the powder, while the resulting Caustic soda at the same time sets the nicotine free. Receives after drying a powder that is easy to grind and can be easily dusted.

Beispiel 2Example 2

Derriswurzel wird mit so viel Bariumchloridlösung durchfeuchtet, daß nach Zugabe der äquivalenten Menge Natriumsulfat ein Bariumsulfatniederschlag entsteht, der 25°/0 der angewandten Wurzel beträgt.Derriswurzel is moistened with barium chloride solution as much that, after adding the equivalent amount of sodium sulfate, a precipitate of barium sulphate is formed, the 25 ° / 0 is the root applied.

Beispiel 3Example 3

Mit Oxalsäure durchtränktes Sägemehl wird mit Kalkmilch versetzt. Das getrocknete und gemahlene Produkt nimmt begierig Formaldehyd auf und weist für die Schädlingsbekämpfung ausgezeichnete physikalische Eigenschaften auf den Pflanzen auf.Sawdust soaked in oxalic acid is mixed with milk of lime. The dried one and ground product avidly absorbs formaldehyde and indicates pest control excellent physical properties on the plants.

:::: Von dem Patentsucher sind als die Erfinder angegeben worden: Dr. Herbert Schotte in Berlin-Charlottenburg und Dr. Karl Görnit\ in Berlin-Zehlendorf.The patent seeker indicated that the inventors were: Dr. Herbert Schotte in Berlin-Charlottenburg and Dr. Karl Görnit \ in Berlin-Zehlendorf.

Claims (1)

548308548308 Patentanspruch:Claim: Verfahren zum Verbessern der Eigenschaften pflanzlicher pulverförmiger, zur Herstellung von Schädlingsbekämpfungsmitteln geeigneter Stoffe, dadurch gekennzeichnet, daß man in hinreichend zerkleinerten vegetabilischen Produkten durch chemische Behandlung Niederschlage erzeugt und das erforderlichenfalls getrocknete Material vermahlt.Process for improving the properties of vegetable powder, for Manufacture of pesticides suitable substances, characterized in that that one precipitates by chemical treatment in sufficiently comminuted vegetable products generated and ground the dried material, if necessary.
DE1930543308D 1930-12-23 1930-12-23 Process for the production of pest repellants Expired DE543308C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE543308T 1930-12-23

Publications (1)

Publication Number Publication Date
DE543308C true DE543308C (en) 1932-02-04

Family

ID=6559997

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1930543308D Expired DE543308C (en) 1930-12-23 1930-12-23 Process for the production of pest repellants

Country Status (1)

Country Link
DE (1) DE543308C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3335555A1 (en) * 2016-12-19 2018-06-20 Kalkfabrik Netstal AG Heavy metal free, calcium hydroxide based agent

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3335555A1 (en) * 2016-12-19 2018-06-20 Kalkfabrik Netstal AG Heavy metal free, calcium hydroxide based agent
WO2018114420A1 (en) 2016-12-19 2018-06-28 Kalkfabrik Netstal Ag Heavy metal-free calcium hydroxide-based active substance

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