Preparation method of snow melting agent
A snow-melting agent and drying technology, applied in chemical instruments and methods, other chemical processes, etc., can solve the problems of high price, poor snow-melting effect, pollution of rivers, groundwater, etc., and achieve the effect of low price and good snow-melting effect
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Embodiment 1
[0017] A preparation method of deicing agent, comprising the following steps:
[0018] (1) Take the straw ash, dry it through a 50-mesh sieve, and put it in a volumetric flask for later use;
[0019] (2) Add acetic acid waste liquid to the straw ash, wherein the ratio of water to waste liquid is 8-10:1, heat in a water bath, the heating temperature is 80-90°C, and the heating time is 60-90min;
[0020] (3) Mechanical stirring, the stirring time is 30 minutes, and the stirring speed is 600rpm;
[0021] (4) Remove the insoluble matter by filtration to obtain a light yellow solution,
[0022] (5) After clarifying the solution, filter out the supernatant, which is the liquid deicing agent;
[0023] (6) Crystallize the deicing agent through a rotary evaporator to obtain a solid deicing agent, dry and grind it to obtain a light yellow powder;
[0024] (7) Dissolve the yellow powder in distilled water, perform activated carbon adsorption treatment, and dry to obtain a white deicin...
Embodiment 2
[0026] A preparation method of deicing agent, comprising the following steps:
[0027] (1) Take the straw ash, dry it through a 50-mesh sieve, and put it in a volumetric flask for later use;
[0028] (2) Add acetic acid waste liquid to the straw ash, wherein the ratio of water to waste liquid is 8-10:1, heat in a water bath, the heating temperature is 80-90°C, and the heating time is 60-90min;
[0029] (3) Mechanical stirring, the stirring time is 30 minutes, and the stirring speed is 600rpm;
[0030] (4) Remove the insoluble matter by filtration to obtain a light yellow solution,
[0031] (5) After clarifying the solution, filter out the supernatant, which is the liquid deicing agent;
[0032] (6) Crystallize the deicing agent through a rotary evaporator to obtain a solid deicing agent, dry and grind it to obtain a light yellow powder;
[0033] (7) Dissolve the yellow powder in distilled water, perform activated carbon adsorption treatment, and dry to obtain a white deicin...
Embodiment 3
[0036] A preparation method of deicing agent, comprising the following steps:
[0037] (1) Take the straw ash, dry it through a 50-mesh sieve, and put it in a volumetric flask for later use;
[0038] (2) Add acetic acid waste liquid to the straw ash, wherein the ratio of water to waste liquid is 8-10:1, heat in a water bath, the heating temperature is 80-90°C, and the heating time is 60-90min;
[0039] (3) Mechanical stirring, the stirring time is 30 minutes, and the stirring speed is 600rpm;
[0040] (4) Remove the insoluble matter by filtration to obtain a light yellow solution,
[0041] (5) After clarifying the solution, filter out the supernatant, which is the liquid deicing agent;
[0042] (6) Crystallize the deicing agent through a rotary evaporator to obtain a solid deicing agent, dry and grind it to obtain a light yellow powder;
[0043] (7) Dissolve the yellow powder in distilled water, perform activated carbon adsorption treatment, and dry to obtain a white deicin...
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