The Method of Using Serpentine to Treat Salt Lake Brine
A technology of salt lake brine and serpentine, applied in the direction of magnesium carbonate, etc., can solve the problems of high energy consumption and high cost, and achieve the effect of low energy consumption, low cost and cost reduction
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Embodiment 1
[0044] In this example, see figure 1 , utilize serpentine to process the method for saline lake brine, comprise the steps:
[0045] a. Serpentine pretreatment:
[0046] After the serpentine is crushed, it is ground in a planetary ball mill for 1 hour at a speed of 300r / min, and ball milling is carried out, and the sieve hole size is 200 mesh to obtain the ball milled pretreated serpentine powder, and then the serpentine powder is processed in a muffle furnace Then heat and calcine at 700° C. for 15 minutes to obtain calcined pre-activated serpentine powder;
[0047] b. Mineralization coupled reaction process:
[0048] Mix the 20g pretreated serpentine powder and 140ml salt lake brine after the treatment in the step a, and add it into the autoclave; CO 2 , forming serpentine-salt lake brine-CO 2 Reactant system solution, controlling the CO above the surface of the reactant system solution 2 The equilibrium pressure is 10Mpa, the temperature is controlled at 40°C, the reac...
Embodiment 2
[0058] This embodiment is basically the same as Embodiment 1, especially in that:
[0059] In the present embodiment, utilize serpentine to process the method for saline lake brine, comprises the steps:
[0060] a. Serpentine pretreatment:
[0061] After the serpentine is crushed, it is ground in a planetary ball mill for 5 hours at a speed of 300r / min, and ball milling is carried out, and the sieve size is 300 mesh to obtain the ball milled pretreated serpentine powder, and then the serpentine powder is processed in a muffle furnace Then heat and calcine at 500° C. for 240 minutes to obtain calcined pre-activated serpentine powder;
[0062] b. Mineralization coupled reaction process:
[0063] Mix the 20g pretreated serpentine powder and 500ml salt lake brine after the treatment in the step a, and add it to the high-pressure reactor; CO 2 , forming serpentine-salt lake brine-CO 2 Reactant system solution, controlling the CO above the surface of the reactant system solutio...
Embodiment 3
[0069] This embodiment is basically the same as the previous embodiment, and the special features are:
[0070] In the present embodiment, utilize serpentine to process the method for saline lake brine, comprises the steps:
[0071] a. Serpentine pretreatment:
[0072] After the serpentine is crushed, it is ground in a planetary ball mill for 3 hours at a speed of 300r / min, and ball milling is carried out, and the sieve hole size is 100 mesh to obtain the ball milled pretreated serpentine powder, and then the serpentine powder is processed in a muffle furnace Then heat and calcine at 800° C. for 15 minutes to obtain calcined pre-activated serpentine powder;
[0073] b. Mineralization coupled reaction process:
[0074] Mix the 20g pretreated serpentine powder and 20ml salt lake brine after the treatment in the step a, and add it to the autoclave; CO 2 , forming serpentine-salt lake brine-CO 2 Reactant system solution, controlling the CO above the surface of the reactant sy...
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