Method for regenerating zinc oxide desulfurization waste agent
A zinc oxide and desulfurizing agent technology, applied in chemical instruments and methods, separation methods, dispersed particle separation, etc., can solve the problems of high cost, unsuitable for industrial application, etc., reduce the regeneration cost, be beneficial to industrial production, and improve the reaction yield. rate effect
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[0020] Example 1
[0021] The regeneration method of zinc oxide desulfurization waste agent described in this embodiment is:
[0022] 1g of zinc oxide desulfurization waste agent and 70mL of deionized water were sequentially added to a 100mL hydrothermal reactor. The hydrothermal reactor was placed in an oven at 200°C for 24 hours. After the reaction was completed, it was naturally cooled and the reaction liquid was filtered. The filter residue is collected, washed with deionized water 6 times, and dried at 110° C. for 10 hours to obtain a regenerated zinc oxide desulfurizer. Grind the regenerated zinc oxide desulfurizer into a powder of more than 200 mesh, and use X-ray diffractometer (XRD) for structural characterization, such as figure 1 As shown, observe the changes in the diffraction peaks of zinc oxide and zinc sulfide.
Example Embodiment
[0023] Example 2
[0024] The regeneration method of zinc oxide desulfurization waste agent described in this embodiment is:
[0025] 1g of zinc oxide desulfurization waste agent, 60mL of deionization and 10mL of ammonia were sequentially added to a 100mL hydrothermal reactor. The hydrothermal reactor was placed in an oven at 250°C to react for 12 hours. After the reaction was completed, it was naturally cooled and the reaction liquid Filter, collect the filter residue, wash and dry the filter residue to obtain a regenerated zinc oxide desulfurizer.
Example Embodiment
[0026] Example 3
[0027] The regeneration method of zinc oxide desulfurization waste agent described in this embodiment is:
[0028] 1g of zinc oxide desulfurization waste agent, 50mL of deionization and 20mL of ammonia were sequentially added to a 100mL hydrothermal reactor. The hydrothermal reactor was placed in an oven at 200°C for 24 hours. After the reaction was completed, it was naturally cooled and the reaction liquid Filter, collect the filter residue, wash the filter residue 6 times with deionized water, and dry at 110° C. for 10 hours to obtain a regenerated zinc oxide desulfurizer. Grind the regenerated zinc oxide desulfurizer into a powder of more than 200 mesh, and use XRD for structural characterization, such as figure 2 As shown, observe the changes in the diffraction peaks of zinc oxide and zinc sulfide.
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