A kind of preparation method of anti-oxidation controlled-release iron element foliar fertilizer
A foliar fertilizer and iron element technology, applied in the agricultural field, can solve problems such as unfavorable agricultural sustainable development, unfavorable crop absorption, soil compaction, etc., and achieve remarkable effects, low cost, and delay the oxidation process
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Embodiment 1
[0015] (1) Add 5g of microcrystalline cellulose powder into a beaker containing 250mL of pure water, stir at 20°C and 200 rpm for 5 minutes, then add 8.58g of sodium periodate, place in a dark place and continue stirring for 4 hours, then add 5mL of ethylene glycol to terminate the reaction, centrifuged at 4000 rpm, the obtained precipitates were washed with pure water, 50% absolute ethanol and absolute ethanol respectively, and then placed in an oven, dried at 40 degrees Celsius to obtain aldehydated fibers white;
[0016] (2) Add 2g of formylated cellulose into a beaker containing 50mL of pure water, stir at 20°C at 200-400 rpm for 5 minutes, then add 0.1g of sodium chlorite, and dropwise add 0.05mL of acetic acid, set Continue to stir for 6 hours in the dark, then add 150 mL of absolute ethanol to terminate the reaction, centrifuge at 4000 rpm, and wash the obtained precipitates with pure water, 50% absolute ethanol and absolute ethanol respectively and put them in an oven ...
Embodiment 2
[0020] (1) 7.5g microcrystalline cellulose powder is added in the beaker that 275mL pure water is housed, after stirring for 10 minutes at 25 degrees centigrade 300 rpm, add 12.87g sodium periodate, place in dark place and continue to stir for 5 hours, then Add 7.5mL ethylene glycol to terminate the reaction, then centrifuge at 4500 rpm, wash the obtained precipitate with pure water, 50% absolute ethanol and absolute ethanol respectively, put it in an oven, and dry it at 50 degrees Celsius to obtain aldehyde Kylated cellulose;
[0021] (2) Add 3g of aldylated cellulose into a beaker containing 75mL of pure water, stir at 300 rpm for 10 minutes, add 0.15g of sodium chlorite, and dropwise add 0.075mL of acetic acid, and place it in the dark at 25 degrees Celsius. Stir for 8 hours, then add 175mL of absolute ethanol to terminate the reaction, centrifuge at 4500 rpm, wash the obtained precipitate with pure water, 50% absolute ethanol and absolute ethanol respectively, put it in an...
Embodiment 3
[0026] (1) Add 10g of microcrystalline cellulose powder into a beaker containing 500mL of pure water, stir at 30 degrees Celsius and 400 rpm for 15 minutes, then add 17.16g of sodium periodate, place in a dark place and continue stirring for 6 hours, then add 10mL of ethylene glycol to stop the reaction, and then centrifuged at 5000 rpm, the obtained precipitates were washed with pure water, 50% absolute ethanol and absolute ethanol respectively, and then placed in an oven, dried at 60 degrees Celsius to obtain aldehydes cellulose;
[0027] (2) Add 4 g of aldehyde-based cellulose into a beaker filled with 100 mL of pure water, stir at 400 rpm for 15 minutes, add 0.2 g of sodium chlorite, and add 0.1 mL of acetic acid dropwise, and place in the dark at 30 degrees Celsius Stir for 10 hours, then add 200mL of absolute ethanol to terminate the reaction, centrifuge at 5000 rpm, wash the obtained precipitate with pure water, 50% absolute ethanol and absolute ethanol, put it in an ov...
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