Wet-grinding modified lithium metasilicate, preparation method thereof and application of wet-grinding modified lithium metasilicate used as adsorbent
A technology of wet grinding and lithium silicate, applied in separation methods, chemical instruments and methods, and other chemical processes, can solve problems such as poor cycle stability and low adsorption efficiency of carbon dioxide adsorbents, and achieve optimized surface morphology , enhance the effect, eliminate the effect of static electricity
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[0045] Example 1
[0046] The present invention provides a wet grinding-based modification method for obtaining high-performance lithium silicate adsorbent, which includes the following steps:
[0047] (1) Weigh a certain amount of lithium carbonate and silica sol (30% SiO) according to the mass ratio of silicon to lithium n (Si): n (Li) = 1:4.2 2 Aqueous solution) After wet mixing, place it in a constant temperature water bath and continue to stir until it is completely evaporated. The solid obtained is put into a corundum boat and calcined in a muffle furnace at 900°C for 4 hours. After being taken out, it is ground and sieved to obtain Li 4 SiO 4 The original powder of the adsorbent is reserved;
[0048] (2) such as figure 1 As shown, weigh 4g as it is and add it to the ball milling tank, and add a certain amount of deionized water to the tank according to the solid-to-liquid ratio of 1:1, and finally add the grinding balls according to the ball-to-material ratio of 12:1; in additi...
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