A kind of preparation method of Indonesian oil sand tailings mercury removal adsorbent
An adsorbent and tailings technology, applied in separation methods, chemical instruments and methods, other chemical processes, etc., can solve the problems of waste of resources, occupation of land, pollution of the environment, etc., and achieve low preparation cost, high adsorption rate, and preparation method. simple effect
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Embodiment 1
[0032] The oil sand tailings produced in Indonesia are used as raw materials, and its composition contains CaCO 3 , crush the oil sand tailings into powder, sieve the part below 20 mesh (large particles continue to be pulverized), and then put the sifted oil sand tailings powder in a muffle furnace, at 900 ° C Burn for 4 hours, then cool it down to room temperature; mix burnt oil sand tailings powder and water at a mass ratio of 1:6, and carry out digestion reaction at 80°C for 4 hours; put the reaction product in an oven, It is dried at 105°C, and the dried product is ground into powder to obtain the adsorbent for mercury removal of oil sand tailings.
Embodiment 2
[0034] The oil sand tailings produced in Indonesia are used as raw materials, and its composition contains CaCO 3, crush the oil sand tailings into powder, sieve the part below 20 mesh (large particles continue to be pulverized), and then put the sifted oil sand tailings powder in a muffle furnace, at 900 ° C Burn for 4 hours, then cool it down to room temperature; mix the burnt oil sand tailings powder and water at a mass ratio of 1:6, then add 0.1% potassium permanganate by mass percentage, and then The reaction was carried out at ℃ for 4 hours; the reaction product was put into an oven, dried at 105 ℃, and then the dried product was ground into powder to obtain the adsorbent for mercury removal of oil sand tailings.
Embodiment 3
[0036] The oil sand tailings produced in Indonesia are used as raw materials, and its composition contains CaCO 3 , crush the oil sand tailings into powder, sieve the part below 20 mesh (large particles continue to be pulverized), and then put the sifted oil sand tailings powder in a muffle furnace, at 900 ° C Burn for 4 hours, then cool it down to room temperature; mix the burnt oil sand tailings powder and water at a mass ratio of 1:6, then add 1% potassium permanganate by mass percentage, and then The reaction was carried out at ℃ for 4 hours; the reaction product was put into an oven, dried at 105 ℃, and then the dried product was ground into powder to obtain the adsorbent for mercury removal of oil sand tailings.
[0037] The oil sand tailings adsorbent prepared in Examples 1 to 3 was used under the condition of adsorption temperature of 140°C and loading capacity of 1g figure 1 The shown small-scale fixed-bed mercury adsorption experiment device was used for mercury rem...
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