Silica gel cleaning production method and sulfuric acid production method
A clean production and production method technology, applied in the direction of sulfur trioxide/sulfuric acid, silicon oxide, silicon dioxide, etc., can solve problems such as air pollution and achieve energy saving effects
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[0057] 1. Sodium silicate (Na 2 O 3.3SiO 2 ) production
[0058] The content of sodium sulfate is 99%, the average fineness is 50 mesh, the content of sodium sulfate is 98.5%, the content of silicon dioxide is 98.5%, the water content is 2.6%, the average particle size is 60 mesh, and the fixed carbon content is 72%. The average fineness Coal with a degree of 40 mesh, a calorific value of 6800 kcal / kg, and a sulfur content of 2.2% is fully mixed evenly, and the batching ratio is in accordance with the stoichiometric ratio of sodium natron with a modulus of 3.3, but the excess of sodium sulfate is 8%. The added amount of reduced coal is increased to 7% of the theoretical added amount of Yuanming powder, and it is continuously added to the horseshoe flame kiln with a heat value of 1350 kcal / Nm3 as fuel and a heating temperature of 1400 ° C. Paohuatin with a modulus of 3.3 is produced. At the same time, the total amount of flue gas (wet basis) measured is: 33653~37134Nm 3 / h,...
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