Industrial expls Dynamites

Detonation, Shack-Wave (or Stress-Wave) Fracturing af Rock in. Accdg to Cook (Ref 3, p 339), Hino (Ref 1) published studies of the importance of the compressive Sc and tensile St strengths and the ratio Sc/St on rock fracturing by shock from three Japanese industrial expls an Ammon Gelatin, a Permitted Ammon Gelatin and an Ammon Dynamite. Their compns are not given by Cook, but the properties are... 

Brazilian Dynamites. Industrial Explosives in Brazil are described by Borges (Ref 2). The following plants manufg Dynamites and other industrial expls are listed in Ref 2 a) Fabrica Presidente Vargas at Piquere,... 

Kuro Carlit (Black Carlit). A Japanese industrial expl described in the following Refs Refs 1) K. Ito, KogyoKayakuKyokaishi 26 (3), 140-41(1965) CA 64, 17344(1966) listed as AddnlRef No 228 under DYNAMITE 2) K. Sakamoto H. Yoshitoni, Ibid 27(6), 377-81(1966) CA 66, 117543h(l967) listed as AddnlRef No 319 under DYNAMITE... 

Cereal Meal. The coarsely ground and unbolted grain of cereals, such as rye, corn, wheat, barley, oats, etc(Ref 2). Some cereal meals have been used as fuel and sensitizer components of industrial expls. Eg a)French AN dynamite AN 45, NG 40, Na nitrate 5 cereal meal 10% (Ref l,p 341) b)Ger AN expl-AN 6l.O, Na nitrate 3 0, cereal meal 7.5, glycerin 3.0, MNT 1.0, NG 4.0 K or Na chloride 20.5%(Ref l,p... 

Rosin has also been used in some industrial expls either as a fuel or as a binder (when dissolved in alcohol or other solvent). Examples of using rosin in expls are given by Davis (Ref 3. pp333, 334, 336, 350 360). They include Dynamite with Active Base of Nobel (1869) ... 

It has been known among workers in expls industries and in mining that aged Gelatin-Dynamites ate difficult to initiate, owing to the absence of gas bubbles in their structure,... 

Some of the gums have been used in Dynamites to increase their plasticity (Ref 1, p 406), but their principle use in the expl industry is as binding agents in priming and initiating compns. Being carbohydrates, they... 

Dynamite Industry is Fading Away. Since the appearance on the market after WWII of ANFO (Amm nitrate/Fuel oil), which sells at 4 to 60 a pound vs five times as much for Dynamite, many Dynamites plants closed down and many more are in jeopardy. Estimates are that Dynamite will drop to 5% of the expl market by 1980, while in May 1971 it held at about 30%... 

As was mentioned above under the heading Ammonium Nitrate Historical", the use of AN in expls began about 1867 when Norr-bin Oh Is son patented their expl called "Ammoniakkrut 1 (Refs 2,3)- This expl consisted of AN in mixts with combustibles such as charcoal, sawdust, naphthalene, picric acid, NG or nitrobenzene. Nobel acquired the patent and soon introduced a new series of AN expls called "extra dynamites, examples of. which were 71/4/2/23—NG/collo-dian cotton/charcoal/AN and 25/1/12/62-NG/collodion cotton/charcoal/AN (Refs 52 94). AN has steadily increased in importance in the expl industry, especially in the "permissible expls used in coal mining. 

Corncob Cellulose. The possible use of corncob cellulose in the expl industry is discussed by Marsh (Ref). It appears that the only use for it is as a carbonaceous absorbent for liq ingredients such as NG, used in the manuf of dynamites. See also Cornstalk... 

The expls industry of Sweden dates back from the year 1540. For over 300 years, the manuf of expls was limited to BlkPdr and similar compns. The inventions of Alfred Nobel (see Vol 8, N165-Rto N167-L), of various Dynamites, in the 1860—70 s, soon led to the emergence of a modem expls industry. By 1900 all of the firms, which are major producers today, had been established... 

The important discovery of Nobel revolutionized the mining expls industry because Gelatins were much more powerful than Guhr Dynamite, previously invented, and they practically did not exude. They were particularly suitable for blasting hard rocks... 

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