DE1112935B - Process for the waterproofing of explosives - Google Patents

Process for the waterproofing of explosives

Info

Publication number
DE1112935B
DE1112935B DED34351A DED0034351A DE1112935B DE 1112935 B DE1112935 B DE 1112935B DE D34351 A DED34351 A DE D34351A DE D0034351 A DED0034351 A DE D0034351A DE 1112935 B DE1112935 B DE 1112935B
Authority
DE
Germany
Prior art keywords
explosives
emulsion
waterproofing
fatty amines
cartridges
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.)
Pending
Application number
DED34351A
Other languages
German (de)
Inventor
Dr Erich Ludolphy
Dr Adolf Berthmann
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.)
Dynamit Nobel AG
Original Assignee
Dynamit Nobel 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 Dynamit Nobel AG filed Critical Dynamit Nobel AG
Priority to DED34351A priority Critical patent/DE1112935B/en
Publication of DE1112935B publication Critical patent/DE1112935B/en
Pending legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C06EXPLOSIVES; MATCHES
    • C06BEXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
    • C06B23/00Compositions characterised by non-explosive or non-thermic constituents
    • C06B23/009Wetting agents, hydrophobing agents, dehydrating agents, antistatic additives, viscosity improvers, antiagglomerating agents, grinding agents and other additives for working up
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01DCOMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM, RUBIDIUM, CAESIUM, OR FRANCIUM
    • C01D9/00Nitrates of sodium, potassium or alkali metals in general
    • C01D9/20Preventing the absorption of moisture or caking

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Agronomy & Crop Science (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Colloid Chemistry (AREA)

Description

Verfahren zur Hydrophobierung von Sprengstoffen Es ist bekannt, Alkalisalze und Ammoniumsalze durch primäre Fettamine und deren Salze zu hydrophobieren. Ferner sind auch schon Fettsäuren und deren Salze vorgeschlagen worden. Werden tertiäre Fettamine verwendet, so ergibt sich eine ungeeignete Hydrophobierung der damit behandelten Sprengstoffkomponenten, wobei auch gleichzeitig eine schlechte Detonationsübertragung auftritt.Process for the waterproofing of explosives It is known, alkali salts and to hydrophobize ammonium salts with primary fatty amines and their salts. Further Fatty acids and their salts have also been proposed. Become tertiary If fatty amines are used, then there is an unsuitable hydrophobization of the treated with them Explosive components, while also having poor detonation transmission occurs.

Es wurde nun gefunden, daß man eine gute Hydrophobierung von Sprengstoffen, insbesondere Wettersprengstoffen-wobei gleichzeitig keineVerschlechterung der Detonationsübertragung eintritt -, erreicht, wenn die tertiären Fettamine in Form ihrer wäßrigen Emulsion zur Hydrophobierung verwendet werden. Vorteilhafterweise werden hierbei Fettsäure undfoder anorganische Salze der Emulsion zugesetzt, wie z. B. Stearinsäure, Palmitinsäure, Natrium-Perchlorat.It has now been found that a good hydrophobization of explosives, especially weather explosives - while at the same time no deterioration of the detonation transmission occurs -, when the tertiary fatty amines are in the form of their aqueous emulsion can be used for waterproofing. Fatty acids are advantageous here andfor inorganic salts added to the emulsion, e.g. B. stearic acid, palmitic acid, Sodium perchlorate.

Beispiel 1 Ein Gemisch aus 2360 g Kalisalpeter und 1240 g Ammoniumchlorid werden mit 20 g einer Emulsion des N,N-Dimethylpahnitylamins vermischt. Die Emulsion besteht aus 5 g N,N-Dimethylpahnitylamin, 15 g Wasser und 0,3 g Thylose. Anschließend werden 16 g Aluminiumoxyd, 348 g Sprengöl und 38 g Guarmehl zugesetzt und vermischt. Im Vergleichsversuch wurde das Gemisch von Kalisalpeter und Ammoniumchlorid mit N,N-Dimethylpalmitylamin vermischt.Example 1 A mixture of 2360 g of potassium nitrate and 1240 g of ammonium chloride are mixed with 20 g of an emulsion of N, N-dimethylpahnitylamins. The emulsion consists of 5 g of N, N-dimethylpahnitylamine, 15 g of water and 0.3 g of thylose. Afterward 16 g of aluminum oxide, 348 g of explosive oil and 38 g of guar flour are added and mixed. In the comparison experiment, the mixture of potassium nitrate and ammonium chloride was used N, N-dimethylpalmitylamine mixed.

Es wurden bestimmt: 1. die Patronendichte in gicm3 auf Grund von Gewicht und Volumen der Patronen; 2. die Wasserfestigkeit in cm/Min., worunter die Zentimeter und Minuten zu verstehen sind, die die Patronen unterhalb des Wasserspiegels lagen. 100/60 bedeutet, daß vier Patronen, 100 cm 60 Minuten unter Wasser gelagert, noch restlos detonierten, wenn sie in gleicher Achsenrichtung und aneinanderliegend in Luft, auf Sand gebettet und gezündet wurden durch eine Aluminium-Sprengkapsel Nr. 3 in der ersten Patrone; die Detonationsübertragung in cm im Papprohr (40 mm Durchmesser), wobei 160 bedeutet, daß zwei Patronen, in gleicher Achsenrichtung 160 cm voneinander gebettet, noch detonierten, wenn die eine von den beiden durch eine Aluminium-Sprengkapsel Nr. 3 gezündet wurde. Mit Emulsion Ohne Emulsion Durchmesser der Patronen (mm) . . . . . . . . . . . . . . . . . . 30 30 Patronendichte (g/cm3) .......................... 1,28 1,30 Wasserfestigkeit (cm/Min.) . . . . . . . . . . . . . . . . . . . . . . . über 100/60 unter 50/30 Detonationsübertragung im Papprohr (cm) . . . . . . . . . 160 110 Beispiel 2 Es wurde die gleiche Sprengstoffzusammensetzung und die gleiche Behandlung genommen wie im Beispiel 1, nur daß die Emulsion zusätzlich 2,2 g Natriumperchlorat enthielt. Beispiel 3 2200 g Kalisalpeter und 160 g Calciumnitrat wurden mit 20 g einer Emulsion versetzt und vermischt. Die Emulsion bestand aus 1/1o Mol Stearinsäure und 1/1o Mo1Tri-n-butylamin (insgesamt 8,5g), 15 gWasser und 0,3 g Thylose. Es wurden die gleichen Zusätze eingemischt, wie im Beispiel 1 angegeben. Auch hier zeigte sich die gleiche gute Hydrophobierung unter Erhalt der Detonationsübertragung.The following were determined: 1. the cartridge density in gicm3 based on the weight and volume of the cartridges; 2. The water resistance in cm / min., By which the centimeters and minutes are to be understood that the cartridges were below the water level. 100/60 means that four cartridges, 100 cm under water for 60 minutes, still detonated completely when they were laid in the same axial direction and lying next to one another in air, bedded on sand and ignited by an aluminum detonator No. 3 in the first cartridge; the detonation transmission in cm in the cardboard tube (40 mm diameter), where 160 means that two cartridges, embedded 160 cm apart in the same axial direction, still detonated when one of the two cartridges was detonated by an aluminum detonator no.3. With emulsion Without emulsion Cartridge diameter (mm). . . . . . . . . . . . . . . . . . 30 30 Cartridge density (g / cm3) .......................... 1.28 1.30 Water resistance (cm / min.). . . . . . . . . . . . . . . . . . . . . . . over 100/60 under 50/30 Detonation transmission in the cardboard tube (cm). . . . . . . . . 160 110 Example 2 The same explosive composition and treatment was used as in Example 1, except that the emulsion additionally contained 2.2 g of sodium perchlorate. Example 3 2200 g of potassium nitrate and 160 g of calcium nitrate were mixed with 20 g of an emulsion. The emulsion consisted of 1/10 mol of stearic acid and 1/10 mol of tri-n-butylamine (8.5 g in total), 15 g of water and 0.3 g of thylose. The same additives as indicated in Example 1 were mixed in. Here, too, the same good water repellency was found while preserving the detonation transmission.

Claims (2)

PATENTANSPRÜCHE: 1. Verfahren zur Hydrophobierung pulverförmiger Sprengstoffe, insbesondere von Wettersprengstoffen, mit tertiären Fettaminen, dadurch gekennzeichnet, daß die tertiären Fettamine in Form einer wäßrigen Emulsion aufgebracht werden. PATENT CLAIMS: 1. Process for the hydrophobization of powdered explosives, in particular of weather explosives, with tertiary fatty amines, characterized in that the tertiary fatty amines are applied in the form of an aqueous emulsion. 2. Verfahren zur Hydrophobierung pulverförmiger Sprengstoffe, insbesondere von Wettersprengstoffen, gemäß Anspruch 1, dadurch gekennzeichnet, daß der wäßrigen Emulsion der tertiären Fettamine eine Fettsäure und/oder anorganische Salze zugegeben werden.2. Process for the hydrophobization of powdery explosives, in particular of weather explosives, according to claim 1, characterized in that the aqueous emulsion of the tertiary Fatty amines, a fatty acid and / or inorganic salts are added.
DED34351A 1960-09-26 1960-09-26 Process for the waterproofing of explosives Pending DE1112935B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DED34351A DE1112935B (en) 1960-09-26 1960-09-26 Process for the waterproofing of explosives

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DED34351A DE1112935B (en) 1960-09-26 1960-09-26 Process for the waterproofing of explosives

Publications (1)

Publication Number Publication Date
DE1112935B true DE1112935B (en) 1961-08-17

Family

ID=7042146

Family Applications (1)

Application Number Title Priority Date Filing Date
DED34351A Pending DE1112935B (en) 1960-09-26 1960-09-26 Process for the waterproofing of explosives

Country Status (1)

Country Link
DE (1) DE1112935B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1203653B (en) * 1963-09-14 1965-10-21 Dynamit Nobel Ag Weather explosives

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1203653B (en) * 1963-09-14 1965-10-21 Dynamit Nobel Ag Weather explosives

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