Zinc oxide slurry for flue gas desulfurization
A technology of zinc oxide slurry and zinc oxide, applied in chemical instruments and methods, separation of dispersed particles, separation methods, etc., can solve problems such as high viscosity of zinc oxide slurry, absorption of environmental pollution, and influence on normal production, so as to improve the absorption effect, Effect of reducing pollution and saving resources
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[0018] Example 1
[0019] First, water and zinc oxide are mixed at a ratio of 1:1 to prepare a zinc oxide slurry, and then triethanolamine (TEA), sodium chloride (NaCl), and Tween 80 are mixed at a weight ratio of 1.2:0.4:0.5 to make cigarettes The additive of ZnO slurry for gas desulfurization, and then add the additive to the ZnO slurry at a ratio of 0.2% of the total weight of the ZnO slurry to make an additive composed of triethanolamine (TEA), sodium chloride (NaCl) and Tween 80 Zinc oxide slurry for flue gas desulfurization. Use the zinc oxide slurry to control SO in a zinc smelter 2 The concentration is 12000 mg / m 3 The flue gas is desulfurized. After testing, SO in the tail gas after desulfurization 2 The content is 450 mg / m 3 .
Example Embodiment
[0020] Example 2
[0021] First mix water and zinc oxide at a ratio of 1:0.54 to prepare zinc oxide slurry, and then combine triethanolamine (TEA) and calcium chloride (CaCl) 2 ), polyethylene glycol 20000 is mixed according to the weight ratio of 2:0:5:1.5 to make the additive of the ZnO slurry for flue gas desulfurization, and then the additive is added to the ZnO slurry in the proportion of 0.05% of the total weight of the ZnO slurry. It contains triethanolamine (TEA), calcium chloride (CaCl 2 ) Zinc oxide slurry for flue gas desulfurization with additives composed of polyethylene glycol 20000. Use the zinc oxide slurry to control SO in a zinc smelter 2 The concentration is 10000mg / m 3 The flue gas is desulfurized. After testing, SO in the tail gas after desulfurization 2 The content is 200mg / m 3 .
Example Embodiment
[0022] Example 3
[0023] First mix water and zinc oxide in a ratio of 1:3 to prepare zinc oxide slurry, and then mix 2-amino-2-methyl-1-propanol, calcium chloride (CaCl 2 ), Sodium dodecylbenzene sulfonate is mixed in a weight ratio of 1:0.2:0.5 to make an additive for ZnO slurry for flue gas desulfurization, and then the additive is added to ZnO at a ratio of 0.5% of the total weight of the ZnO slurry The slurry contains 2-amino-2-methyl-1-propanol, calcium chloride (CaCl 2 ) Zinc oxide slurry for flue gas desulfurization with additives composed of sodium dodecylbenzene sulfonate. Use the zinc oxide slurry to control SO in a zinc smelter 2 The concentration is 15000 mg / m 3 The flue gas is desulfurized. After testing, SO in the tail gas after desulfurization 2 The content is 190mg / m 3 .
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