Mine types

Corrosion Resistance. Titanium is immune to corrosion in all naturally occurring environments. It does not corrode in air, even if polluted or moist with ocean spray. It does not corrode in soil and even the deep salt-mine-type environments where nuclear waste might be buried. It does not corrode in any naturally occurring water and most industrial wastewater streams. For these reasons, titanium has been termed the metal for the earth, and 20—30% of consumption is used in corrosion-resistance appHcations (see Corrosion and corrosion inhibitors). 

Mine Type Chemical Case Concentration (ng/cm2) Source... 

IX. Land Mines are containers, metal, plastic or wood, filled with HE or chemical agents, designed for placing in or on the ground for initiation by and effect against enemy vehicles or personnel. This includes some booby traps (Other booby traps are not land mine types)... 

Veiterines intended for use as propints contained either ATNC 40 and Ba nitrate 60, or ATNC 40, Ba nitrate 40 and K nitrate 20%. Those designed for blasting purposes contained ATNC and Na nitrate, to which was sometimes added up to 20% NG. For use in gaseous coal mines, formulations contained up to 93% Amm nitrate. Some of these were called explosifs de mine, type C . 

ORES. Mineral aggregates in which the valuable metalliferous minerals are sufficiently abundant to make the aggregates worth mining. Types and origins of ore deposits arc illustrated in Fig. 1. See also Copper and Iron. 

C(ExplosifsXExplosifs de mine type C). Mining expls manufd in France beginning ca 1895 and designated in Fr as a) n°la ... 

The French workers devised a medium for production of ferropyri-mine-type pigment in which citrate appears to be an important constituent. In the absence of added iron the synthesis is augmented somewhat, although not to the spectacular degree seen with the ferric chelators (118). 

Electrical apparatus for coal mines, type firedamp-proof, are constructed, built and tested according to the same philosophy as for zone 1 apparatus. Therefore, most of the IEC and European Standards describe constructional requirements and testing procedures for zone 1 apparatus and firedamp-proof apparatus in parallel. 

The fibers are manufactured in bundles of several 100 filaments and exhibit tensile strengths of 1.4 to 2.3 GPa and elasticity moduli of 320 to 380 GPa. Disadvantages of the fibers formerly manufactured by DuPont (types FP and PRD-166, are no longer manufactured) are their high density (3.6 to 4.2 Mg/m ) and the brittleness of the ca. 20 pm in diameter fibers (see Table 5.2-16). Fibers from Mitsui Mining (type ALMAX) with a diameter of 10 pm are commercially available at a price of 1900 DM/kg. They are mainly utilized in the reinforcing of aluminum and magnesium. 

The test field consisted of two segments. The first was a 40,000 square metre blind area laid out in a grid pattern and containing 8 to 15 mines with locations, t tpe, and burial depth unknown to the team. The second was a proximity area which contained 3 each of 4 different mine types (12 mines total) at known positions separated by 30 metres. The purpose of this area was to determine how far explosive contamination could be detected from a mine. 

In the framework of a research program of national interest, electrokinetic remediation was applied to two different sea sediments dredged from industrial harbors located in Northeastern Italy (namely, sediment V) and Southwestern Sardinia (namely, sediment S). Both areas were subjected for several years to industrial pressure of chemical and mining type, and the analysis performed on the two sediment samples indicated significant heavy metal content high contents of As and Zn (181 and 3720mg/kg, respectively) were detected in sediment V, as were Pb and Zn (4970 and 5210mg/kg, respectively) in sediment S (see Table 12). 

In the hydrolysis of octrahedral Co (Ill)-complexes of the chloropentam-mine type [chloropentammine-, c/s-chloroamminebis (ethylendiamine)-, and c -chlorotriethylenetetramine-Co (III)] values of dEajdT of around — 50 cal mole i deg have been found (28). The author s explanation resembles that described in Section V. A for organic hydrolysis reactions in mixed solvents (92)—preferential solvation of the transition state with its developing chloride ion we may term it the scraping of the hill (136) effect. The freezing in of six molecules of water in the transition state, according to the authors, would quantitatively explain the result. 

Platinum(IV) complexes of halogenopentam-mine type are reduced irreversibly to platinum(II) complexes in one step (Hall and Plowman 1955) The polarographic stability of the pentamminepla-tinum(IV) complexes, [Pt(NH3)3X], increases in the following order of ligand X ... 

Mine Country Main Owner Mine Type Production (tU) Percentage of World Production... 

In potentially gassy or gassy operations, wherever mine-type ventilation systems using an offset main fan installed on the surface are used, they shall be equipped with explosion-doors or a weak-wall having an area at least equivalent to the cross-sectional area of the airway. 

Mine Type of ice Flow rate (kg/s) Pipe ID (mm) Ice mass velocity (kg/s per m ) Total length (m) Final dep (m)... 

Tests with the Bureau of Mines type of dew-point apparatus are reported to permit a determination with a precision (reproducibility) of 0.2 F ( 0.1 C) and with an accuracy of 0.2 F ( 0.1 C) when the dew-point temperatures range from room temperature to a temperature of 32 F (O Q. It is estimated that water dew points may be determine with an accuracy of 0.5 F (0.3 C) when they are below 32 F (0 Q and not lower than 0 F (-17.8 C), provided ice crystals do not form during the determination. 

The dew point could be determined using a Bureau of Mines Type chilled mirror hygrometer (see Test Method D 1142 for more information). 

---