Preparation method of compound fertilizer anti-caking agent
An anti-caking agent and fertilizer technology, applied in fertilization devices, fertilizer mixtures, applications, etc., can solve problems such as poor fluidity, achieve the effects of increasing flow performance, reducing water absorption performance, and improving anti-caking effect
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[0021] A preparation method of a compound fertilizer anti-caking agent. The preparation method includes the following steps:
[0022] (1) In parts by weight, take 60 to 65 parts of water, 45 to 55 parts of acetone, 35 to 40 parts of polyglutamic acid, 25 to 30 parts of dimethylformamide, 22 to 24 parts of toluene diisocyanate, 17 ~19 parts supplements, 13-15 parts ethylene glycol, 10-15 parts 1,4-butanediol, 4-6 parts catalyst and 2-5 parts additives;
[0023] (2) First put water, acetone, polyglutamic acid, dimethylformamide, 1,4-butanediol and additives into the reactor, preheat at 80~90℃ for 30min, then add toluene diisocyanate , Catalyst and ethylene glycol, raise the temperature to 100~130℃, stir and react for 4~6h;
[0024] (3) After the completion of the reaction, add supplements, use nitrogen to exhaust the gas in the reactor, increase the pressure to 1.0-1.2MPa, react for 3-5h, cool to room temperature, collect the reaction mixture, and filter, and collect the filtrate. Ob...
Embodiment 1
[0028] The supplement is 3-aminopropyltriethoxysilane.
[0029] The catalyst is a mixture of palladium-carbon catalyst (Shaanxi Ruike New Materials Co., Ltd.), platinum catalyst (Tianjin Saifei Chemical Technology Development Co., Ltd.) and titanium dioxide in a mass ratio of 1:1:1.
[0030] The additive is dioctyl sodium dibutyrate sulfonate.
[0031] A preparation method of a compound fertilizer anti-caking agent. The preparation method includes the following steps:
[0032] (1) In parts by weight, take 63 parts of water, 50 parts of acetone, 38 parts of polyglutamic acid, 28 parts of dimethylformamide, 23 parts of toluene diisocyanate, 18 parts of supplements, 14 parts of ethylene glycol, 13 parts 1,4-butanediol, 5 parts catalyst and 4 parts additives;
[0033] (2) First put water, acetone, polyglutamic acid, dimethylformamide, 1,4-butanediol and additives into the reactor, preheat at 85°C for 30 minutes, and then add toluene diisocyanate and catalyst And ethylene glycol, raise the...
Embodiment 2
[0037] The supplement is 3-aminopropyltriethoxysilane.
[0038] The catalyst is a mixture of palladium-carbon catalyst (Shaanxi Ruike New Materials Co., Ltd.), platinum catalyst (Tianjin Saifei Chemical Technology Development Co., Ltd.) and titanium dioxide in a mass ratio of 1:1:1.
[0039] The additive is fatty alcohol polyoxyethylene ether.
[0040] A preparation method of a compound fertilizer anti-caking agent. The preparation method includes the following steps:
[0041] (1) In parts by weight, take 65 parts of water, 55 parts of acetone, 40 parts of polyglutamic acid, 30 parts of dimethylformamide, 24 parts of toluene diisocyanate, 19 parts of supplements, and 13-15 parts of ethylene dichloride Alcohol, 15 parts of 1,4-butanediol, 6 parts of catalyst and 5 parts of additives;
[0042] (2) First put water, acetone, polyglutamic acid, dimethylformamide, 1,4-butanediol and additives into the reactor, preheat at 90°C for 30 minutes, and then add toluene diisocyanate and catalyst An...
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