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A kind of nitro fertilizer anti-caking agent and its preparation method and application

An anti-caking agent, nitro technology, applied in application, inorganic fertilizers, organic fertilizers, etc., can solve problems such as easy to fall off, mineral oil powder cannot be fixed well, anti-caking effect cannot be guaranteed, etc., to achieve improved Soil effect, farmland ecological environment effect, improvement of farmland ecological environment effect, effect of inhibiting salt dissolution-recrystallization

Active Publication Date: 2021-03-02
HUBEI FORBON TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The main carrier of powdery anti-caking agent is non-metallic mineral, which is not easy to be degraded by water and has a relatively large impact on the environment. At the same time, the inert powder has a general effect due to its poor adhesion.
[0008] 3. Problems in the application of anti-caking agent
[0009] Now nitro fertilizer manufacturers generally use the two-step method of oil + powder to wrap nitro fertilizer particles, although the effect of anti-caking is satisfied. At present, the big problem is that mineral oil powder cannot be well fixed on the particle surface, or It can’t be wrapped, or it’s easy to fall off after it’s wrapped. We often see the phenomenon of powder dropping and de-powdering on the surface of nitro fertilizer. In this case, the anti-caking and isolation effect of powder on nitro fertilizer will be greatly reduced, and the overall anti-caking effect The effect cannot be guaranteed, and petroleum products such as mineral oil and alkylamine can no longer meet the current environmental protection requirements

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] A nitro fertilizer anti-caking agent, each component is calculated by mass percentage, the nitro fertilizer anti-caking agent consists of 20% of magnesium oxide, 5% of nano-scale silicon dioxide, and 75% of corn orange stalk, and the content of magnesium oxide is 96%, moisture 1.00%, D90 primary particle size is 10um, the content of the nano-scale silicon dioxide is 98%; D90 primary particle size is 80nm, the plant corn stalk moisture 2.0%, particle size D90 primary The particle size is 20um.

[0031] A method for preparing an anti-caking agent for nitro fertilizers: the magnesium oxide powder in the proportion is used to wrap and modify the surface of corn stalks in a silo through a modification machine to obtain modified corn stalk powder. Perform surface secondary modification on the obtained modified corn orange stalk powder in the modification machine with the nano-scale silicon dioxide in the said ratio; after the modified powder obtained by the secondary modifica...

Embodiment 2

[0035] An anti-caking agent for nitro fertilizer, each component is calculated by mass percentage, the anti-caking agent for nitro fertilizer consists of 25% of magnesium oxide powder, 7% of nano-scale silicon dioxide, 68% of rapeseed orange stalk, and the magnesium oxide The powder content is 97%, the moisture content is 0.98%, the D90 primary particle size is 20um, and the nano-scale silicon dioxide content is 96%; the D90 primary particle size is 100nm, and the rapeseed stalk moisture content is 1.8%, and the particle size is D90 The primary particle size is 30um.

[0036] A method for preparing an anti-caking agent for nitro fertilizers: take the proportion of magnesium oxide powder and use a modifying machine to wrap and modify the surface of rapeseed stalks in a silo to obtain modified rapeseed stalk powder. Perform surface secondary modification on the obtained modified rapeseed orange stalk powder in the modification machine with the nano-scale silicon dioxide in the s...

Embodiment 3

[0040] A nitro fertilizer anti-caking agent, each component is calculated by mass percentage, the nitro fertilizer anti-caking agent consists of 30% of magnesium oxide powder, 10% of nano-scale silicon dioxide, 60% of cotton straw, and the magnesium oxide The powder content is 98%, the moisture content is 0.96%, the D90 primary particle size is 30um, and the nano-scale silicon dioxide content is 96.5%; the D90 primary particle size is 150nm, and the cotton straw moisture content is 1.72%, and the particle size is D90 The primary particle size is 50um.

[0041] A method for preparing an anti-caking agent for nitro fertilizers: the magnesium oxide powder in the proportion is used to wrap and modify the surface of cotton stalks in a silo through a modification machine to obtain modified cotton stalk powder. Carry out secondary modification on the surface of the obtained modified cotton orange stalk powder in the modification machine with the nano-scale silicon dioxide in the said...

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Abstract

The invention discloses a nitro fertilizer anti-caking agent and its preparation method and application. The components are calculated by mass percentage. Silicon 5-10%, plant natural orange stalk 60-75%, the sum of each component is 100%, and it is obtained through secondary modification. When the product is in use, use a screw conveyor to evenly coat the surface of the nitro fertilizer granules. The nitro fertilizer anti-caking agent can form a layer of diaphragm on the surface of nitro fertilizer particles, so that the nitro fertilizer can be kept loose for a long time and have good fluidity, ensuring the quality of the nitro fertilizer.

Description

technical field [0001] The invention relates to the technical field of nitro fertilizer anti-caking treatment, in particular to a nitro fertilizer anti-caking agent and its preparation method and application. Background technique [0002] 1. Overview of anti-caking agent [0003] Anti-caking agents are additives that promote good fluidity of fertilizers during storage and handling operations. In order to prevent fertilizer agglomeration, especially the agglomeration of nitro fertilizer is more serious, fertilizer manufacturers mainly adopt the method of coating anti-caking agent with nitro fertilizer while improving process conditions and controlling particle characteristics. When used, it can suppress the agglomeration, moisture absorption and pulverization of nitro fertilizers to the greatest extent, increase the fluidity of granules, and facilitate the storage, transportation and use of nitro fertilizers. Therefore, as a low-cost, high-yield anti-caking Blocking measure...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C05G3/30C05G5/30C05G3/40C05D5/00C05G3/80C05G3/90
CPCC05D5/00C05G3/00C05D9/00C05F11/00C05D7/00C05G5/30C05G3/30C05D9/02
Inventor 王仁宗杨慧萍田楠李淑华
Owner HUBEI FORBON TECH
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