Fires milling equipment

All operations with phosphorus and reactive phosphides should be done in a hood or dry box and equipment should be on hand to deal with the possibility of a phosphorus fire. Phosphides may ignite if milled mechanically under ambient conditions and even highly purified red phosphorus may contain small inclusions of white phosphorus. Therefore, all grinding should be done under an inert atmosphere. On contact with wet air or wet inert gas, phosphides may produce phosphines (odor, selfignitability). Phosphines have also been shown to be physiologically active. ... 

Particulate control is by means of either a wet scrubber or a wet electrostatic precipitator located after the condensing heat exchanger. The choice of particulate control equipment depends on the degree of control required. The particulate slurry collected by the scrubber or precipitator is circulated through a pug mill that de-waters and pelletizes the ash. The ash pellets are spread on the tree fields as a fertilizer. The ash content of the wood is less than 1% so that a maximum of 5 t/day are collected and pelletized. The particulate emission standard to be met for new wood fired power plants in the State of Wisconsin, for exan le, is based on best available control technology (BACT) and can be expected to be about 21 g/ 10 kj. 

Eldorado made a deal with U.S. Radium to market some of that firm s products in the Commonwealth. One of these was Undark, a radium-based luminous compound. The arrangement also encompassed compounds used in the manufacture of television and cathode-ray tubes. The biggest seller amor these products was the lonotron, a radioactive anti-static device that used the ability of alpha radiation to ionize air to prevent formation of static electricity. It was employed in industries where flammable vapours or materials could be ignited by sparks from static electricity. Textile and paper mills were major customers, but the lonotron helped in the operation of coating and packaging equipment as well. It enabled manufacturers to increase the speed of their machines while reducing the risk of fire. 

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