A kind of resource utilization method of vanadium extracting waste water to produce catalytic combustion enhancer for coal
A combustion aid and recycling technology, applied in metallurgical wastewater treatment, fuel, solid fuel, etc., can solve problems that do not conform to the concept of green, low-carbon, circular economy development, high operating costs, complex equipment, etc., and achieve simple technical methods It is practical, improves the economic benefits of enterprises, and promotes the effect of energy saving and emission reduction.
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Embodiment 1
[0050] In this example, the vanadium extraction wastewater is selected from a vanadium precipitation wastewater roasted with sodium slag, the water-liquid property regulator is selected from commercially available monoethanolamine, and the rare earth catalyst is selected from a water-soluble V-type rare earth catalyst developed by a base of Central South University ( Commercially available product) (unseparated mixture of light rare earth elements, the main components are water-soluble salicylate of lanthanide light rare earth elements such as lanthanum, cerium, praseodymium, neodymium, promethium, samarium, europium, gadolinium, holmium, and erbium , a compound of nitrate and chloride salt), and the combustion aid is commercially available lithium perchlorate.
[0051] Using waste water from vanadium extraction as the main raw material, the catalytic combustion accelerant for pulverized coal combustion in industrial kilns is produced according to the following steps:
[0052]...
Embodiment 2
[0055] The vanadium extraction wastewater was selected from a certain vanadium-containing stone coal sodium-roasted wastewater, the water-liquid property regulator was selected from commercially available N-methyl monoethanolamine, and the rare earth catalyst was selected from a water-soluble V-type rare earth catalyst developed by a base of Central South University. (It is an unseparated mixture of light rare earth elements, and its main components are water-soluble salicylate, nitrate and Chloride compound), the combustion aid is commercially available lithium nitrate.
[0056] Using waste water from vanadium extraction as the main raw material, the catalytic combustion accelerant for pulverized coal combustion in industrial kilns is produced according to the following steps:
[0057] (1) Adjust the properties of the vanadium extraction wastewater: put the vanadium extraction wastewater in a stirring tank, add N-methyl monoethanolamine to adjust the pH value to 7, and obtain...
Embodiment 3
[0060] The vanadium extraction wastewater was selected from a factory using a fluidized bed furnace to roast vanadium-containing stone coal without salt. The water-liquid property regulator was selected from commercially available liquid ammonia. The rare earth catalyst was selected from a water-soluble type VI rare earth catalyst developed by a base of Central South University. (It is an unseparated mixture of light rare earth elements, the main components are water-soluble citrate, nitrate and chlorine of lanthanum light rare earth elements such as lanthanum, cerium, praseodymium, neodymium, promethium, samarium, europium, gadolinium, holmium and erbium Salt complex), and commercially available lithium nitrate is selected as the combustion aid.
[0061] Using waste water from vanadium extraction as the main raw material, the catalytic combustion accelerant for pulverized coal combustion in industrial kilns is produced according to the following steps:
[0062] (1) Adjust the...
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