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  • Description: carbon
(36 results)



Display: 20

    • Ultra-violet photometer

    • Manufacturing process of acetate rayon
    • View of a new ultra-violet photometer, developed by DuPont scientists, shows the two sampling tubes running between the box at left, which encloses the light source, and the housing at right for two photo-electric cells with their rheostats and...
    • Belle Works

    • Manufacturing Process of Ammonia
    • Contact conversion, a process in which carbon monoxide reacts with steam to product carbon dioxide and hydrogen takes place in this equipment at the Belle WV plant of E.I. du Pont Nemours & Company. Hydrogen is a component of ammonia, one of the...
    • Belle Works

    • Belle, West Virginia
    • Giant gas purification unit at Belle Works, Belle WV removes unwanted elements from coke gas at 450 pound pressure. These 85 foot scrubbers at the big DuPont plant purify carbon dioxide and carbon monoxide used in making urea, glycol and other...
    • Belle Works

    • Belle, West Virginia
    • At the Belle Works, DuPonts high pressure synthesis plant, one of the largest gas purification units in the world removes unwanted elements from coke gas. These 85 foot scrubbers purify carbon dioxide and carbon monoxide used in making urea, glycol...
    • Analyzing invisible vapors

    • Manufacturing process of acetate rayon
    • An electric eye enables this ultraviolet photometer, at left, developed by scientist of DuPont's Rayon Technical Division and Electrochemicals Department, to see shadows of invisible vapors and gases in plant atmosphere. Here intake hose of...
    • Belle Works

    • Manufacturing Process of Ammonia
    • Charging machine for water gas generator in which coke is heated and through which air and steam are blown to produce a crude mixture of hydrogen and carbon monoxide at the Belle WV plant of E.I. du Pont Nemours & Company. This is one of the...
    • Belle Works

    • Manufacturing Process of Ammonia
    • Charging machine for water gas generator in which coke is heated and through which air and steam are blown to produce a crude mixture of hydrogen and carbon monoxide at the Belle WV plant of E.I. du Pont Nemours & Company. This is one of the...
    • Belle Works

    • Manufacturing Process of Ammonia
    • This machine compresses gas to 400 pounds pressure prior to removal of carbon dioxide and other impurities in the manufacture of synthetic ammonia at the Belle WV plant of E.I. du Pont Nemours & Company.
    • Belle Works

    • Manufacturing Process of Ammonia
    • This machine compresses gas to 400 pounds pressure prior to removal of carbon dioxide and other impurities in the manufacture of synthetic ammonia at the Belle WV plant of E.I. du Pont Nemours & Company.
    • Raw materials used in 'Freon'

    • Chambers Works Deepwater Point, New Jersey
    • Raw materials used in 'Freon; fluorinated hydrocarbon refrigerants are basically simple-sulphur, carbon tetrachloride and flurspar. Here is a worker at Chambers Works standing behind samples of these basic materials. Freon hydrocarbons are also...
    • Gas Reformers

    • Sabine River Works Orange TX and Belle WV Plant
    • Huge reformers with their stately stacks at DuPont's Sabine River Works, Orange, TX are used to convert natural gas into hydrogen and carbon monoxide for the synthesis of methanol. Methanol is used chiefly for making anti-freeze and formaldehyde.
    • Unloading a barratte

    • Manufacturing process of acetate rayon
    • Unloading a barratte where a batch of treated pulp has been churned and mixed with carbon bisulfide to become cellulose xanthate, a chemical step in the manufacture of rayon at plants of E.I du Pont Nemours & Company. The pulp emerges deep orange...
    • Testing for moisture

    • Explosives Research
    • A chemical test at the DuPont Company's Eastern Laboratory in Gibbstown New Jersey determines moisture content in dynamite ingredients. Here a chemist boils a sample with carbon tetrachloride and measures the amount of water. At Eastern Laboratory,...
    • Wire Mill

    • Wire mills, Patenting furnaces, Quenching, Molten lead quenching
    • American Steel & Wire Company, subsiiary of United States Steel Corporation South Works, Worcester, Mass. High grade high carbon wires leaving a M. H. Patenting furnace and entering the molten lead quench bath before entering the take up reels
    • Wire Mill

    • Wire mills. Wire drawing machines, Bull-blocks
    • American Steel & Wire Company, subsiiary of United States Steel Corporation South Works, Worcester, Mass. Bull-block used in making a single reduction on very heavy steel rod . Plain carbon and alloy steel wire for the fabrication of heavy bolts...

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