The second batch of tungsten export quotas issued in 2009

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Recently, the Ministry of Commerce issued the second batch of export quotas for tungsten products in 2009. The total amount of tungsten products ordered was 5,837.86 tons (equivalent to the amount of metals, the same below), accounting for 40.0% of the total volume of the year. All have been released.

Among them: ammonium paratungstate, ammonium diammonium oxide 1,342.6 tons, accounting for 23.0% of the total; tungstic acid and its salts 525.5 tons, accounting for 9.0% of the total; tungsten trioxide and blue tungsten oxide 3,036.8 tons, accounting for 52.0 of the total %; tungsten powder and its products 933 tons, accounting for 16.0% of the total.

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The carbon can remove the SO2 in the flue gas desulfurization (sulfur dioxide), denitrification is mainly from NOx in flue gas (nitrogen oxide), the two substances into the atmosphere will be the formation of acid rain, acid rain harm is very large, so now the country has been promoting environmental protection, with coal as the fuel gas containing these substances, especially thermal power plant, thermal power plant are now built simultaneous construction of desulfurization, denitrification and now the state has not started to force.

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