Vanadya Industry
The main chemical industry in the vanadium didn't come immediately. His service to humanity began in the production of colored glass, paint and stones. Pharmaceuticals and racing crafts were covered by golden velocity and glass was painted with blue or green ropes. In the beautiful case, the Vanadium appeared shortly after the publication in 1842 of an outstanding Russian chemistry, N. N. Zininin, to receive aniliin from nitrobenzen. Zininin 's response offered new opportunities to develop synthetic paints. Vanadia ' s compounds have found use of chemistry in this industry and have benefited significantly. There's only one V2O5 mass to translate 200,000 spring parts of the colourless salt of the aniliene into a painted substance, black anylene. The use of vanadia compounds in the Indian crash was equally effective. So element No. 23 came into the test, in the production of coloured cotton and silk tissues.
Manufacturing needed vain and its compounds, but the ore rich in that element was a little bit. The engineers of the French steel firm Croeso apparently drew attention to the fact that the first congeners of the Sefströ Vanadiy had been derived from metallurgical slags and, in 1882, they were manufactured on the same basis. For 10 years, the Crozo plant has been disbursing 60 tons of V2O5 annually to the world market. However, the demand for tanium compounds for black anilin has soon declined sharply and production has declined significantly.
But at the beginning of the First World War, chemists again had to turn to element No. 23. Over the years, fighting countries have demanded huge quantities of sulphuric acid. It's not possible to get a nitrocelett on the basis of the gunpowder. It is known that sulphuric acid is oxidized by sulphuric anhydride SO2 sulphur anhydride SO3 with subsequent water accession. However, SO2 directly with oxygen reacts very slowly. The sulphuric anhydride may occur when the nitrogen dioxide is restored (this reaction is based on nitrosive sulphuric acid production method), but the cleaner and concentrated acid is produced if the SO2 oxidation response in SO3 is carried out in the presence of some solid catalysts (contact production method).
