Preparation method of slow release type caking-preventing granular fertilizer
A granular fertilizer and anti-caking technology, which can be used in organic fertilizers, fertilizer mixtures, animal carcass fertilizers, etc. Effect
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[0021] Example 1
[0022] Pour the mica rock into the ball mill tank, and add the zirconia ball mill beads according to the mass ratio of the balls to 20:1. After ball milling and mixing for 8 hours, pass through a 500 mesh sieve to obtain mica powder. Take 50 parts by weight in turn. Urea, 10 parts of mica powder, 12 parts of polyallylamine, 150 parts of organic solvent, first pour polyallylamine and organic solvent into a beaker, stir and mix with a stirrer at 500r / min for 40 minutes, then add granular urea and Mica powder, under agitation, inject carbon dioxide gas into the beaker at a rate of 40 mL / min, continue to infuse for 40 minutes, and filter to obtain pretreated granular urea; take 60 parts of chicken feathers and 50 parts of water in order by weight , 5 parts of sucrose, pour into the fermentation tank, at a temperature of 40 ℃, rotating speed 500r / min conditions, stirring and mixing at a constant temperature for 60 minutes, then add 6% chicken feather mass Bacillu
Example Embodiment
[0023] Example 2
[0024] In parts by weight, take 50 parts of granular urea, 10 parts of limestone, 12 parts of polyallylamine, and 150 parts of organic solvent. Pour the polyallylamine and organic solvent into the beaker and stir with a stirrer at 500r / min. After mixing and dissolving for 40 minutes, add granular urea and limestone. Under stirring, pass carbon dioxide gas into the beaker at a rate of 40 mL / min. After continuing for 40 minutes, filter to obtain pretreated granular urea; in parts by weight, Take 60 parts of chicken feathers, 50 parts of water, and 5 parts of sucrose in turn, and pour them into the fermenter. At a temperature of 40°C and a speed of 500r / min, stir and mix at a constant temperature for 60 minutes, and then add 6% of chicken feathers to the fermenter. Bacillus licheniformis was fermented at constant temperature for 10 days to obtain the fermented material, and the obtained fermented material was transferred to an autoclave, and sterilized at a tem
Example Embodiment
[0025] Example 3
[0026] Pour the mica rock into the ball mill tank, and add the zirconia ball mill beads according to the mass ratio of the balls to 20:1. After ball milling and mixing for 8 hours, pass through a 500 mesh sieve to obtain mica powder. Take 50 parts by weight in turn. Urea, 10 parts of mica powder, 150 parts of organic solvent, first pour the organic solvent, granular urea and mica powder into the beaker, while stirring, pour carbon dioxide gas into the beaker at a rate of 40 mL / min, and continue to pour it for 40 minutes , Filtered to obtain pretreated granular urea; in parts by weight, take 60 parts chicken feathers, 50 parts water, 5 parts sucrose, and pour them into the fermentation tank at a temperature of 40°C and a rotation speed of 500r / min. After stirring and mixing for 60 minutes, add Bacillus licheniformis with 6% chicken feather mass to the fermenter, stir and ferment at constant temperature for 10 days to obtain fermented material, and transfer the
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