Method for producing calcium formate through industrial furnace exhaust gas by using hybrid series-parallel method
A calcium formate, industrial furnace technology, applied in the field of formate, can solve problems such as difficult industrial application, and achieve the effects of reducing environmental pollutants, reducing steam consumption, and improving comprehensive utilization of energy
Inactive Publication Date: 2018-08-10
贵州开阳青利天盟化工有限公司
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However, these patented technologies are only in a theoretical discussion rather than a practical production technology, so it is difficult to apply industrially
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Embodiment 1
[0048] Example 1 A yellow phosphorus production enterprise utilizes tail gas to produce calcium formate, including two parts of tail gas purification treatment and synthesis of calcium formate. The specific process is:
[0049]Tail gas purification treatment part: the tail gas first undergoes two stages of water washing to remove large particles of dust residue, and then passes through a coke filter to filter out small particles of dust residue to obtain relatively clean tail gas; after that, wet desulfurization uses 888 desulfurizer to roughly remove tail gas The sulfide in the tail gas is further removed by the temperature swing adsorption method, so that the sulfur content in the tail gas is below 0.001ppm; 2 S, when desorbing, use the exhaust gas (the main component is H2) as the heat carrier, and steam as the heat source to heat the bed to about 180°C for desorption. Then the bed temperature is cooled to normal temperature for the next cycle; the phosphorus-containing sub...
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A method for producing calcium formate through industrial furnace exhaust gas by using a hybrid series-parallel method comprises the following steps: (1) purifying exhaust gas, namely, treating the exhaust gas by dust removing, desulfuration, dephosphorization, carbon dioxide removing and purifying to obtain carbon monoxide which is used as a carbonyl-synthesis formic acid raw material; (2) synthesizing calcium formate, namely, carrying out reaction between clean water and lime to obtain lime emulsion; feeding the lime emulsion into a reaction kettle to be subjected to the carbonyl-synthesis with carbon monoxide in the reaction kettle; conveying calcium formate solid-liquid mixture to a centrifugal separator to separate calcium formate crystal after reaction is finished; evaporating the separated saturated calcium formate solution to obtain the calcium formate crystal; drying and packing to obtain calcium formate. According to the method, the reaction kettle series-parallel hybrid combination is adopted, so that the reaction kettle can run with the highest efficiency, and as a result, the comprehensive utilization of the energy is improved; the steam consumption is reduced; the waste is changed into treasure; the production cost is decreased; the environmental pollution is decreased; meanwhile, the demand of market on calcium formate is met; the method is suitable for an enterprise with CO enriched industrial exhaust gas.
Description
technical field [0001] The present invention relates to formate, specifically, to the production method of calcium formate. Background technique [0002] As a chemical product, the main uses of calcium formate are: ① used as a new feed additive, especially piglet feed; ② has been widely used in the construction industry as a cement quick-setting agent; ③ used as a plant production regulator; ④ used as a new Desulfurizer. Calcium formate is widely used in the European Union, Russia, and the United States, but it is still in its infancy due to the high cost of traditional legal production processes in China. [0003] Using industrial waste to produce calcium formate, there are already patents ZL2013107234142 "A Method for Synthesizing Calcium Formate and Co-producing Potassium Formate from Industrial Discharge of Carbon Monoxide Tail Gas", ZL2013107234123 "A Method for Synthesizing Calcium Formate by Batch Reaction of Industrial Discharge of Carbon Monoxide Tail Gas" and 2013...
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IPC IPC(8): C07C53/06C07C51/41C07C51/145C07C53/02
CPCC07C51/412C07C51/145C07C53/02C07C53/06
Inventor 周世立林榕
Owner 贵州开阳青利天盟化工有限公司