Method for synthesizing nanometer polymerization ferric persulfate flocculant by hydro-thermal method
A technology of polymerizing ferric sulfate and hydrothermal method, applied in ferric sulfate, flocculation/sedimentation water/sewage treatment, etc., can solve the problems of large input amount and poor water solubility of ferric sulfate, achieving small input amount, easy control of reaction, mild effects
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Embodiment 1
[0021] Weigh 8g Fe 2 (SO 4 ) 3 ·xH 2 O was reacted ultrasonically in 100mL ethylene glycol solution in an ultrasonic reactor at 60°C. Slowly add 20 mL of 1 mol / L sodium acetate solution dropwise under stirring condition, adjust the pH of the solution to 1.30, then continue to stir and react for 0.5 h. The solution at this time was reddish brown. The reaction solution was put into a hydrothermal reaction kettle, and hydrothermally reacted at 150° C. for 15 h. After the reaction, the polymerized ferric sulfate at the bottom of the hydrothermal reaction kettle is washed, filtered, and dried in a constant temperature drying oven to obtain the nanometer polymerized ferric sulfate flocculant.
[0022] 2. Molecular Structure Determination of Samples
[0023] The crystal structure of nanomaterials was measured with a Cu(Kα) D / max-Ra X-ray diffractometer with a scanning speed of 0.05° / s and a scanning angle ranging from 10° to 80°. The result is shown in Figure 1;
[0024] The ...
Embodiment 2
[0032] Weigh 8gFe 2 (SO 4 ) 3 ·xH 2 O in 100mL ethylene glycol solution, ultrasonically reacted in an ultrasonic reactor at 80°C. Slowly add 15 mL of 1 mol / L sodium acetate solution dropwise under stirring condition, adjust the pH of the solution to 1.00, and continue to stir and react for 0.6 h. The solution at this time was reddish brown. The reaction solution was put into a hydrothermal reaction kettle, and hydrothermally reacted at 150° C. for 15 h. After the reaction, the polymerized ferric sulfate at the bottom of the hydrothermal reaction kettle is washed, filtered, and dried in a constant temperature drying oven to obtain the nanometer polymerized ferric sulfate flocculant.
[0033] 2. Molecular Structure Determination of Samples
[0034] The crystal structure of nanomaterials was measured by D / max-Ra X-ray diffractometer with Cu(Kα) as the radiation source. The scanning speed was 0.05° / s, and the scanning angle range was 10°-80°. The results are shown in Figure ...
Embodiment 3
[0043] Weigh 8g Fe 2 (SO 4 ) 3 ·xH 2 O was reacted ultrasonically in 100mL ethylene glycol solution in an ultrasonic reactor at 50°C. Slowly add 20 mL of 1 mol / L sodium acetate solution dropwise under stirring condition, adjust the pH of the solution to 1.30, and continue to stir and react for 1.0 h. The solution at this time was reddish brown. The reaction solution was put into a hydrothermal reaction kettle, and hydrothermally reacted at 120° C. for 15 h. After the reaction, the polymerized ferric sulfate at the bottom of the hydrothermal reaction kettle is washed, filtered, and dried in a constant temperature drying oven to obtain the nanometer polymerized ferric sulfate flocculant.
[0044] 2. Molecular Structure Determination of Samples
[0045] The crystal structure of nanomaterials was measured with a Cu(Kα) D / max-Ra X-ray diffractometer with a scanning speed of 0.05° / s and a scanning angle ranging from 10° to 80°. The results are shown in Figure 7.
[0046] The ...
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